Linux + Apache to detect the Connection Counts of each Vhosts? - linux

With RHEL and Apache (httpd), is there a way to:
Detect which v.host (domain) is gaining how many incoming connections?
Because in this few days, i got a lot of incoming connections on the Server being acknowledged by using:
ps aux | grep httpd -c
734
That means i have 734 incoming connections currently being handled by Apache but the problem is i have (lets say) 10 Vhosts (domains).
So which Domain is getting the high loads?
Any sharp solutions please.

Say you have a file like /etc/apache2/sites-enabled/000-example.com
You may see lines like:
<VirtualHost *:80>
ServerName www.example.com
ServerAlias example.com
DocumentRoot /www/example.com
Further down, If you want, you can create logfiles for each VirtualHost by changing lines
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined
Too:
ErrorLog ${APACHE_LOG_DIR}/example_com.error.log
CustomLog ${APACHE_LOG_DIR}/example_com.access.log combined
Otherwise, if you don't want to create logfiles for each VirtualHost, then you can create your own custom log format http://httpd.apache.org/docs/2.2/mod/mod_log_config.html#formats
For example:
LogFormat "%v %h %l %u %t \"%r\" %>s %b" common
CustomLog ${APACHE_LOG_DIR}/access.log common
When you have decided how you want to log, then you can write all kinds of scripts to examine or compare your logs. It would be far easier if you are using separate logfiles for each virtualhost, because you may try this.
wc -l /var/log/apache2/*access.log

Related

Apache2 Ubuntu getting a cgi program to run 403 error from /usr/lib/cgi-bin

Well its 2022 and httpf.conf no longer exists. its seems to be split up into site-available, and conf-available, I can't figure it out and I can't find any instructions on how to get a simple helloworld perl script to run (in runs fine from the command line" "perl hw.pl")
The index.html page works fine in firefox, and by changing the 000-default.conf I was able to at least get the script "localhost/cgi-bin/hw.pl" to change from a 404 error to a 403 error by adding the section as marked:
leslie#jl-vr0sr4:/etc/apache2/sites-available$ pwd
/etc/apache2/sites-available
jleslie#jl-vr0sr4:/etc/apache2/sites-available$ cat 000-default.conf
<VirtualHost *:80>
# The ServerName directive sets the request scheme, hostname and port that
# the server uses to identify itself. This is used when creating
# redirection URLs. In the context of virtual hosts, the ServerName
# specifies what hostname must appear in the request's Host: header to
# match this virtual host. For the default virtual host (this file) this
# value is not decisive as it is used as a last resort host regardless.
# However, you must set it for any further virtual host explicitly.
#ServerName www.example.com
ServerAdmin webmaster#localhost
DocumentRoot /var/www/html
# Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
# error, crit, alert, emerg.
# It is also possible to configure the loglevel for particular
# modules, e.g.
#LogLevel info ssl:warn
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined
# For most configuration files from conf-available/, which are
# enabled or disabled at a global level, it is possible to
# include a line for only one particular virtual host. For example the
# following line enables the CGI configuration for this host only
# after it has been globally disabled with "a2disconf".
# JL:: 221116 uncomment out the include to allow cgi-bin
# Include conf-available/serve-cgi-bin.conf
#JL:: 221116 did nothing. Lets add the below:
ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
<Directory "/usr/lib/cgi-bin">
AllowOverride None
Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
Order allow,deny
Allow from all
AddHandler cgi-script .pl
</Directory>
#JL:: 221116 ok, that changed the 404 not found error
# to a 403 forbidden error what gives?
# Forbidden
#
# You don't have permission to access this resource.
# Apache/2.4.52 (Ubuntu) Server at 127.0.0.1 Port 80
</VirtualHost>
# vim: syntax=apache ts=4 sw=4 sts=4 sr noet
So how do I now get it to actually run?
Did I do anything make a mistake in my conf file?
I also want to be able to run .exe .cgi and .sh files from /cgi-bin/ how do specify them as well?
Here is the test hello worl perl script I tried to run:
jleslie#jl-vr0sr4:/usr/lib/cgi-bin$ ll
/usr/lib/cgi-bin
total 44
drwxr-xr-x 2 root root 4096 Nov 16 09:17 ./
drwxrwxrwx 115 root root 4096 Nov 14 13:07 ../
-rwxrwxrwx 1 jleslie jleslie 30144 Nov 16 08:51 fh_fe.exe*
-rwxr-xr-x 1 root root 76 Nov 16 09:17 hw.pl*
jleslie#jl-vr0sr4:/usr/lib/cgi-bin$ cat hw.pl
#!/usr/bin/perl
print "Content-type: text/html\n\n";
print "Hello, World.";
jleslie#jl-vr0sr4:/usr/lib/cgi-bin$
OK, I finally figured it out. No thanks to the apache folks who keep changing the rules and fail to document properly how do do the most basic:
start an apache server
set up a cgi-bin directory.
They'll gladly spend pages talking about virtual hosts, and double nested hyper-crayon whatevers, but not the most basic setup: a webserver that can run cgi-bin programs. Unbelievable. /end gripe.
Anyway I edited :
/etc/apache2/sites-available/000-default.conf
with this code, to both fix and document what is necessary:
31 # JL:: 221116 uncomment out the include to allow cgi-bin
32
33 # Include conf-available/serve-cgi-bin.conf
34
35 #JL:: 221116 did nothing. Lets add the below:
36
37
38 #ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
39 #<Directory "/usr/lib/cgi-bin">
40 ScriptAlias /cgi-bin/ /var/www/cgi-bin/
41 <Directory "/var/www/cgi-bin">
42 AllowOverride None
43 Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
44 Order allow,deny
45 Allow from all
46 AddHandler cgi-script .pl .exe .cgi .sh
47 </Directory>
48
49 #JL:: 221116 ok, that changed the 404 not found error
50 # to a 403 forbidden error what gives?
51 # Forbidden
52 #
53 # You don't have permission to access this resource.
54 # Apache/2.4.52 (Ubuntu) Server at 127.0.0.1 Port 80
55
56 # here is the fix. run this at the command line:
57
58 ### RUNME ****> cd /etc/apache2/mods-enabled
59 ### RUNME ****> sudo ln -s ../mods-available/cgi.load
60
61
62 </VirtualHost>
63
Here is the complete history (with my mistakes, don't bother with them,) of the session that fixed the issue:
1807 cd /etc/apache2/sites-available/
1808 vi 000-default.conf
1809 sudo systemctl stop apache2
1810 sudo systemctl start apache2
1811 cd ..
1812 cd conf-available/
1813 ll
1814 vi serve-cgi-bin.conf
1815 cd ../sites-available/
1816 ll
1817 vi 000-default.conf
1818 pwd
1819 cd /etc/apache2/mods-enabled
1820 sudo ln -s ../mods-available/cgi.load
1821 ll
1822 sudo systemctl stop apache2
1823 sudo systemctl start apache2
please note in the documentation the double secret "turn on cgi-bin" by making the soft link. It took me over an hour of searching on the internet to find that one. - J

Why are there some warnings when cross compiling Apache (httpd-2.4.46)?

When I cross-compile httpd-2.4.46, follow this link and fix this issue1 and issue2 and issue3, then configure and compile.
Note: my system is Debian.
Step 1: install apr
cd apr-1.6.5/
./configure CC=aarch64-linux-gnu-gcc
make
make clean
Step 2: install expat
cd expat-2.2.6
./configure CC=aarch64-linux-gnu-gcc
make
make install
Step 3: install apr-util
cd apr-util-1.6.1/
./configure --with-apr=/usr/local/apr CC=aarch64-linux-gnu-gcc
make
make clean
Step 4: install httpd
cd httpd-2.4.46/
./configure --prefix=/usr/local/apache CC=aarch64-linux-gnu-gcc --with-apr=/usr/local/apr --enable-so
make
make install
Step 5: run httpd
cd /usr/local/apache/bin/
./apachectl -k start
An error occurred,
httpd: Syntax error on line 66 of /usr/local/apache/conf/httpd.conf:
Cannot load modules/mod_authn_file.so into server:
/usr/local/apache/modules/mod_authn_file.so: cannot open shared object
file: No such file or directory
Step 6: find *.so
find / -name "mod_authn_file*"
/usr/local/apache/modules/mod_authn_file.a
/usr/local/apache/modules/mod_authn_file.la
/usr/local/apache/manual/mod/mod_authn_file.html.ja.utf8
/usr/local/apache/manual/mod/mod_authn_file.html
/usr/local/apache/manual/mod/mod_authn_file.html.ko.euc-kr
/usr/local/apache/manual/mod/mod_authn_file.html.en
/usr/local/apache/manual/mod/mod_authn_file.html.fr.utf8
/data/httpd-2.4.46/docs/manual/mod/mod_authn_file.html.ja.utf8
/data/httpd-2.4.46/docs/manual/mod/mod_authn_file.html
/data/httpd-2.4.46/docs/manual/mod/mod_authn_file.html.ko.euc-kr
/data/httpd-2.4.46/docs/manual/mod/mod_authn_file.html.en
/data/httpd-2.4.46/docs/manual/mod/mod_authn_file.html.fr.utf8
/data/httpd-2.4.46/modules/aaa/mod_authn_file.dsp
/data/httpd-2.4.46/modules/aaa/mod_authn_file.c
/data/httpd-2.4.46/modules/aaa/mod_authn_file.lo
/data/httpd-2.4.46/modules/aaa/mod_authn_file.mak
/data/httpd-2.4.46/modules/aaa/mod_authn_file.slo
/data/httpd-2.4.46/modules/aaa/mod_authn_file.la
/data/httpd-2.4.46/modules/aaa/mod_authn_file.o
/data/httpd-2.4.46/modules/aaa/mod_authn_file.dep
/data/httpd-2.4.46/modules/aaa/.libs/mod_authn_file.a
/data/httpd-2.4.46/modules/aaa/.libs/mod_authn_file.la
/data/httpd-2.4.46/modules/aaa/.libs/mod_authn_file.lai
/data/httpd-trunk/docs/manual/mod/mod_authn_file.html.ja.utf8
/data/httpd-trunk/docs/manual/mod/mod_authn_file.xml
/data/httpd-trunk/docs/manual/mod/mod_authn_file.html
/data/httpd-trunk/docs/manual/mod/mod_authn_file.html.en.utf8
/data/httpd-trunk/docs/manual/mod/mod_authn_file.xml.ja
/data/httpd-trunk/docs/manual/mod/mod_authn_file.html.ko.euc-kr
/data/httpd-trunk/docs/manual/mod/mod_authn_file.xml.meta
/data/httpd-trunk/docs/manual/mod/mod_authn_file.xml.fr
/data/httpd-trunk/docs/manual/mod/mod_authn_file.xml.ko
/data/httpd-trunk/docs/manual/mod/mod_authn_file.html.fr.utf8
/data/httpd-trunk/modules/aaa/mod_authn_file.dsp
/data/httpd-trunk/modules/aaa/mod_authn_file.c
Step 7: cat /usr/local/apache/conf/httpd.conf
#
# This is the main Apache HTTP server configuration file. It contains the
# configuration directives that give the server its instructions.
# See <URL:http://httpd.apache.org/docs/2.4/> for detailed information.
# In particular, see
# <URL:http://httpd.apache.org/docs/2.4/mod/directives.html>
# for a discussion of each configuration directive.
#
# Do NOT simply read the instructions in here without understanding
# what they do. They're here only as hints or reminders. If you are unsure
# consult the online docs. You have been warned.
#
# Configuration and logfile names: If the filenames you specify for many
# of the server's control files begin with "/" (or "drive:/" for Win32), the
# server will use that explicit path. If the filenames do *not* begin
# with "/", the value of ServerRoot is prepended -- so "logs/access_log"
# with ServerRoot set to "/usr/local/apache2" will be interpreted by the
# server as "/usr/local/apache2/logs/access_log", whereas "/logs/access_log"
# will be interpreted as '/logs/access_log'.
#
# ServerRoot: The top of the directory tree under which the server's
# configuration, error, and log files are kept.
#
# Do not add a slash at the end of the directory path. If you point
# ServerRoot at a non-local disk, be sure to specify a local disk on the
# Mutex directive, if file-based mutexes are used. If you wish to share the
# same ServerRoot for multiple httpd daemons, you will need to change at
# least PidFile.
#
ServerRoot "/usr/local/apache"
#
# Mutex: Allows you to set the mutex mechanism and mutex file directory
# for individual mutexes, or change the global defaults
#
# Uncomment and change the directory if mutexes are file-based and the default
# mutex file directory is not on a local disk or is not appropriate for some
# other reason.
#
# Mutex default:logs
#
# Listen: Allows you to bind Apache to specific IP addresses and/or
# ports, instead of the default. See also the <VirtualHost>
# directive.
#
# Change this to Listen on specific IP addresses as shown below to
# prevent Apache from glomming onto all bound IP addresses.
#
#Listen 12.34.56.78:80
Listen 80
#
# Dynamic Shared Object (DSO) Support
#
# To be able to use the functionality of a module which was built as a DSO you
# have to place corresponding `LoadModule' lines at this location so the
# directives contained in it are actually available _before_ they are used.
# Statically compiled modules (those listed by `httpd -l') do not need
# to be loaded here.
#
# Example:
# LoadModule foo_module modules/mod_foo.so
#
LoadModule authn_file_module modules/mod_authn_file.so
#LoadModule authn_dbm_module modules/mod_authn_dbm.so
#LoadModule authn_anon_module modules/mod_authn_anon.so
#LoadModule authn_dbd_module modules/mod_authn_dbd.so
#LoadModule authn_socache_module modules/mod_authn_socache.so
LoadModule authn_core_module modules/mod_authn_core.so
LoadModule authz_host_module modules/mod_authz_host.so
LoadModule authz_groupfile_module modules/mod_authz_groupfile.so
LoadModule authz_user_module modules/mod_authz_user.so
#LoadModule authz_dbm_module modules/mod_authz_dbm.so
#LoadModule authz_owner_module modules/mod_authz_owner.so
#LoadModule authz_dbd_module modules/mod_authz_dbd.so
LoadModule authz_core_module modules/mod_authz_core.so
LoadModule access_compat_module modules/mod_access_compat.so
LoadModule auth_basic_module modules/mod_auth_basic.so
#LoadModule auth_form_module modules/mod_auth_form.so
#LoadModule auth_digest_module modules/mod_auth_digest.so
#LoadModule allowmethods_module modules/mod_allowmethods.so
#LoadModule file_cache_module modules/mod_file_cache.so
#LoadModule cache_module modules/mod_cache.so
#LoadModule cache_disk_module modules/mod_cache_disk.so
#LoadModule cache_socache_module modules/mod_cache_socache.so
#LoadModule socache_shmcb_module modules/mod_socache_shmcb.so
#LoadModule socache_dbm_module modules/mod_socache_dbm.so
#LoadModule socache_memcache_module modules/mod_socache_memcache.so
#LoadModule socache_redis_module modules/mod_socache_redis.so
#LoadModule watchdog_module modules/mod_watchdog.so
#LoadModule macro_module modules/mod_macro.so
#LoadModule dbd_module modules/mod_dbd.so
#LoadModule dumpio_module modules/mod_dumpio.so
#LoadModule buffer_module modules/mod_buffer.so
#LoadModule ratelimit_module modules/mod_ratelimit.so
LoadModule reqtimeout_module modules/mod_reqtimeout.so
#LoadModule ext_filter_module modules/mod_ext_filter.so
#LoadModule request_module modules/mod_request.so
#LoadModule include_module modules/mod_include.so
LoadModule filter_module modules/mod_filter.so
#LoadModule substitute_module modules/mod_substitute.so
#LoadModule sed_module modules/mod_sed.so
#LoadModule deflate_module modules/mod_deflate.so
LoadModule mime_module modules/mod_mime.so
LoadModule log_config_module modules/mod_log_config.so
#LoadModule log_debug_module modules/mod_log_debug.so
#LoadModule logio_module modules/mod_logio.so
LoadModule env_module modules/mod_env.so
#LoadModule expires_module modules/mod_expires.so
LoadModule headers_module modules/mod_headers.so
#LoadModule unique_id_module modules/mod_unique_id.so
LoadModule setenvif_module modules/mod_setenvif.so
LoadModule version_module modules/mod_version.so
#LoadModule remoteip_module modules/mod_remoteip.so
#LoadModule proxy_module modules/mod_proxy.so
#LoadModule proxy_connect_module modules/mod_proxy_connect.so
#LoadModule proxy_ftp_module modules/mod_proxy_ftp.so
#LoadModule proxy_http_module modules/mod_proxy_http.so
#LoadModule proxy_fcgi_module modules/mod_proxy_fcgi.so
#LoadModule proxy_scgi_module modules/mod_proxy_scgi.so
#LoadModule proxy_uwsgi_module modules/mod_proxy_uwsgi.so
#LoadModule proxy_fdpass_module modules/mod_proxy_fdpass.so
#LoadModule proxy_wstunnel_module modules/mod_proxy_wstunnel.so
#LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
#LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
#LoadModule proxy_express_module modules/mod_proxy_express.so
#LoadModule proxy_hcheck_module modules/mod_proxy_hcheck.so
#LoadModule session_module modules/mod_session.so
#LoadModule session_cookie_module modules/mod_session_cookie.so
#LoadModule session_dbd_module modules/mod_session_dbd.so
#LoadModule slotmem_shm_module modules/mod_slotmem_shm.so
#LoadModule ssl_module modules/mod_ssl.so
#LoadModule lbmethod_byrequests_module modules/mod_lbmethod_byrequests.so
#LoadModule lbmethod_bytraffic_module modules/mod_lbmethod_bytraffic.so
#LoadModule lbmethod_bybusyness_module modules/mod_lbmethod_bybusyness.so
#LoadModule lbmethod_heartbeat_module modules/mod_lbmethod_heartbeat.so
LoadModule unixd_module modules/mod_unixd.so
#LoadModule dav_module modules/mod_dav.so
LoadModule status_module modules/mod_status.so
LoadModule autoindex_module modules/mod_autoindex.so
#LoadModule info_module modules/mod_info.so
#LoadModule cgid_module modules/mod_cgid.so
#LoadModule dav_fs_module modules/mod_dav_fs.so
#LoadModule vhost_alias_module modules/mod_vhost_alias.so
#LoadModule negotiation_module modules/mod_negotiation.so
LoadModule dir_module modules/mod_dir.so
#LoadModule actions_module modules/mod_actions.so
#LoadModule speling_module modules/mod_speling.so
#LoadModule userdir_module modules/mod_userdir.so
LoadModule alias_module modules/mod_alias.so
#LoadModule rewrite_module modules/mod_rewrite.so
<IfModule unixd_module>
#
# If you wish httpd to run as a different user or group, you must run
# httpd as root initially and it will switch.
#
# User/Group: The name (or #number) of the user/group to run httpd as.
# It is usually good practice to create a dedicated user and group for
# running httpd, as with most system services.
#
User daemon
Group daemon
</IfModule>
# 'Main' server configuration
#
# The directives in this section set up the values used by the 'main'
# server, which responds to any requests that aren't handled by a
# <VirtualHost> definition. These values also provide defaults for
# any <VirtualHost> containers you may define later in the file.
#
# All of these directives may appear inside <VirtualHost> containers,
# in which case these default settings will be overridden for the
# virtual host being defined.
#
#
# ServerAdmin: Your address, where problems with the server should be
# e-mailed. This address appears on some server-generated pages, such
# as error documents. e.g. admin#your-domain.com
#
ServerAdmin you#example.com
#
# ServerName gives the name and port that the server uses to identify itself.
# This can often be determined automatically, but we recommend you specify
# it explicitly to prevent problems during startup.
#
# If your host doesn't have a registered DNS name, enter its IP address here.
#
#ServerName www.example.com:80
#
# Deny access to the entirety of your server's filesystem. You must
# explicitly permit access to web content directories in other
# <Directory> blocks below.
#
<Directory />
AllowOverride none
Require all denied
</Directory>
#
# Note that from this point forward you must specifically allow
# particular features to be enabled - so if something's not working as
# you might expect, make sure that you have specifically enabled it
# below.
#
#
# DocumentRoot: The directory out of which you will serve your
# documents. By default, all requests are taken from this directory, but
# symbolic links and aliases may be used to point to other locations.
#
DocumentRoot "/usr/local/apache/htdocs"
<Directory "/usr/local/apache/htdocs">
#
# Possible values for the Options directive are "None", "All",
# or any combination of:
# Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews
#
# Note that "MultiViews" must be named *explicitly* --- "Options All"
# doesn't give it to you.
#
# The Options directive is both complicated and important. Please see
# http://httpd.apache.org/docs/2.4/mod/core.html#options
# for more information.
#
Options Indexes FollowSymLinks
#
# AllowOverride controls what directives may be placed in .htaccess files.
# It can be "All", "None", or any combination of the keywords:
# AllowOverride FileInfo AuthConfig Limit
#
AllowOverride None
#
# Controls who can get stuff from this server.
#
Require all granted
</Directory>
#
# DirectoryIndex: sets the file that Apache will serve if a directory
# is requested.
#
<IfModule dir_module>
DirectoryIndex index.html
</IfModule>
#
# The following lines prevent .htaccess and .htpasswd files from being
# viewed by Web clients.
#
<Files ".ht*">
Require all denied
</Files>
#
# ErrorLog: The location of the error log file.
# If you do not specify an ErrorLog directive within a <VirtualHost>
# container, error messages relating to that virtual host will be
# logged here. If you *do* define an error logfile for a <VirtualHost>
# container, that host's errors will be logged there and not here.
#
ErrorLog "logs/error_log"
#
# LogLevel: Control the number of messages logged to the error_log.
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
#
LogLevel warn
<IfModule log_config_module>
#
# The following directives define some format nicknames for use with
# a CustomLog directive (see below).
#
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %b" common
<IfModule logio_module>
# You need to enable mod_logio.c to use %I and %O
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
</IfModule>
#
# The location and format of the access logfile (Common Logfile Format).
# If you do not define any access logfiles within a <VirtualHost>
# container, they will be logged here. Contrariwise, if you *do*
# define per-<VirtualHost> access logfiles, transactions will be
# logged therein and *not* in this file.
#
CustomLog "logs/access_log" common
#
# If you prefer a logfile with access, agent, and referer information
# (Combined Logfile Format) you can use the following directive.
#
#CustomLog "logs/access_log" combined
</IfModule>
<IfModule alias_module>
#
# Redirect: Allows you to tell clients about documents that used to
# exist in your server's namespace, but do not anymore. The client
# will make a new request for the document at its new location.
# Example:
# Redirect permanent /foo http://www.example.com/bar
#
# Alias: Maps web paths into filesystem paths and is used to
# access content that does not live under the DocumentRoot.
# Example:
# Alias /webpath /full/filesystem/path
#
# If you include a trailing / on /webpath then the server will
# require it to be present in the URL. You will also likely
# need to provide a <Directory> section to allow access to
# the filesystem path.
#
# ScriptAlias: This controls which directories contain server scripts.
# ScriptAliases are essentially the same as Aliases, except that
# documents in the target directory are treated as applications and
# run by the server when requested rather than as documents sent to the
# client. The same rules about trailing "/" apply to ScriptAlias
# directives as to Alias.
#
ScriptAlias /cgi-bin/ "/usr/local/apache/cgi-bin/"
</IfModule>
<IfModule cgid_module>
#
# ScriptSock: On threaded servers, designate the path to the UNIX
# socket used to communicate with the CGI daemon of mod_cgid.
#
#Scriptsock cgisock
</IfModule>
#
# "/usr/local/apache/cgi-bin" should be changed to whatever your ScriptAliased
# CGI directory exists, if you have that configured.
#
<Directory "/usr/local/apache/cgi-bin">
AllowOverride None
Options None
Require all granted
</Directory>
<IfModule headers_module>
#
# Avoid passing HTTP_PROXY environment to CGI's on this or any proxied
# backend servers which have lingering "httpoxy" defects.
# 'Proxy' request header is undefined by the IETF, not listed by IANA
#
RequestHeader unset Proxy early
</IfModule>
<IfModule mime_module>
#
# TypesConfig points to the file containing the list of mappings from
# filename extension to MIME-type.
#
TypesConfig conf/mime.types
#
# AddType allows you to add to or override the MIME configuration
# file specified in TypesConfig for specific file types.
#
#AddType application/x-gzip .tgz
#
# AddEncoding allows you to have certain browsers uncompress
# information on the fly. Note: Not all browsers support this.
#
#AddEncoding x-compress .Z
#AddEncoding x-gzip .gz .tgz
#
# If the AddEncoding directives above are commented-out, then you
# probably should define those extensions to indicate media types:
#
AddType application/x-compress .Z
AddType application/x-gzip .gz .tgz
#
# AddHandler allows you to map certain file extensions to "handlers":
# actions unrelated to filetype. These can be either built into the server
# or added with the Action directive (see below)
#
# To use CGI scripts outside of ScriptAliased directories:
# (You will also need to add "ExecCGI" to the "Options" directive.)
#
#AddHandler cgi-script .cgi
# For type maps (negotiated resources):
#AddHandler type-map var
#
# Filters allow you to process content before it is sent to the client.
#
# To parse .shtml files for server-side includes (SSI):
# (You will also need to add "Includes" to the "Options" directive.)
#
#AddType text/html .shtml
#AddOutputFilter INCLUDES .shtml
</IfModule>
#
# The mod_mime_magic module allows the server to use various hints from the
# contents of the file itself to determine its type. The MIMEMagicFile
# directive tells the module where the hint definitions are located.
#
#MIMEMagicFile conf/magic
#
# Customizable error responses come in three flavors:
# 1) plain text 2) local redirects 3) external redirects
#
# Some examples:
#ErrorDocument 500 "The server made a boo boo."
#ErrorDocument 404 /missing.html
#ErrorDocument 404 "/cgi-bin/missing_handler.pl"
#ErrorDocument 402 http://www.example.com/subscription_info.html
#
#
# MaxRanges: Maximum number of Ranges in a request before
# returning the entire resource, or one of the special
# values 'default', 'none' or 'unlimited'.
# Default setting is to accept 200 Ranges.
#MaxRanges unlimited
#
# EnableMMAP and EnableSendfile: On systems that support it,
# memory-mapping or the sendfile syscall may be used to deliver
# files. This usually improves server performance, but must
# be turned off when serving from networked-mounted
# filesystems or if support for these functions is otherwise
# broken on your system.
# Defaults: EnableMMAP On, EnableSendfile Off
#
#EnableMMAP off
#EnableSendfile on
# Supplemental configuration
#
# The configuration files in the conf/extra/ directory can be
# included to add extra features or to modify the default configuration of
# the server, or you may simply copy their contents here and change as
# necessary.
# Server-pool management (MPM specific)
#Include conf/extra/httpd-mpm.conf
# Multi-language error messages
#Include conf/extra/httpd-multilang-errordoc.conf
# Fancy directory listings
#Include conf/extra/httpd-autoindex.conf
# Language settings
#Include conf/extra/httpd-languages.conf
# User home directories
#Include conf/extra/httpd-userdir.conf
# Real-time info on requests and configuration
#Include conf/extra/httpd-info.conf
# Virtual hosts
#Include conf/extra/httpd-vhosts.conf
# Local access to the Apache HTTP Server Manual
#Include conf/extra/httpd-manual.conf
# Distributed authoring and versioning (WebDAV)
#Include conf/extra/httpd-dav.conf
# Various default settings
#Include conf/extra/httpd-default.conf
# Configure mod_proxy_html to understand HTML4/XHTML1
<IfModule proxy_html_module>
Include conf/extra/proxy-html.conf
</IfModule>
# Secure (SSL/TLS) connections
#Include conf/extra/httpd-ssl.conf
#
# Note: The following must must be present to support
# starting without SSL on platforms with no /dev/random equivalent
# but a statically compiled-in mod_ssl.
#
<IfModule ssl_module>
SSLRandomSeed startup builtin
SSLRandomSeed connect builtin
</IfModule>
How can I solve it?
Take a backup before doing this. I am not responsible for data loss. Please read the tutorial carefully.
First, try to take a backup and remove all the files in /usr/local/apache if possible.
First try with the following command:
make clean && ./configure --prefix=/usr/local/apache --enable-mods-shared="reallyall" --enable-mpms-shared="all" --with-apr=/usr/local/apr
And then try to load that module.
If not working, then do the following.
Try the following to commands to configure apache:
To be clean, follow the same steps:
Go to http://httpd.apache.org/download.cgi
Right click and copy the link of the link like 'Source: httpd-2.4.46.tar.gz'
Go to the terminal, and enter the following commands one by one and hit enter for no confusion:
a.
cd /usr/local/src
b.
sudo wget -O- <download-link> | tar -zxf -
c.
sudo apt install libnghttp2 libpcre3 libssl build-essential -y
d. Go to http://apr.apache.org/download.cgi and copy the link like 'Unix Source: apr-1.7.0.tar.gz'
sudo wget -O- <apr-download-link> | tar -zxf -
e. Go to http://apr.apache.org/download.cgi and copy the link like 'Unix Source: apr-util-1.6.1.tar.gz'
sudo wget -O- <apr-util-download-link> | tar -zxf -
f.
sudo mv apr-<apr-version> httpd-<apache-version>/srclib/apr
g.
sudo mv apr-util-<apr-util-version> httpd-<apache-version>/srclib/apr-util
h.
cd httpd-<apache-version>
i. According to me, this configuration is better than any other. The --prefix is where apache is installed.
sudo ./configure --prefix=/usr/local/apache --enable-mods-shared="reallyall" --enable-mpms-shared="all"
j.
sudo make
k.
sudo make install
These directories could be altered using the Step 'i'
The apache directory is /usr/local/apache.
The apache conf directory is /usr/local/apache/conf.
The apache main conf file is /usr/local/apache/conf/httpd.conf.
For more info go to http://httpd.apache.org/docs/current/install.html and https://httpd.apache.org/docs/2.4/programs/configure.html.
It seems like the configuration enabled in httpd.conf, line 66 tries to use mod authn_file. It should be defined in the mod_authn_file.so at the location of
/usr/local/apache/modules/mod_authn_file.so
But, the mod_authn_file.so the file does not exist in the output of step 6: find *.so
You will need to ensure that
File path is correct
File should be exist with the required permission
File is not corrupted
If you do not need that mod_authn_file.so configuration, then you can switch it off by commenting line in 66.

Apache 2.4 executes only some CGI scripts

I'm using Apache 2.4.7 on Ubuntu 14.04.5 in a VirtualBox VM. Things are almost working...
Some of my cgi scripts run/execute, but other scripts only display the source for the script. There are no errors or interesting entries in the access.log or error.log files.
Update: After further troubleshooting, I believe the problem was browser caching (sigh!) After force reloading (Cmd-Shift-R on Mac),
they all execute as desired. (I believe the scripts that executed properly the
first time were those that I tested when I had the configuration
correct; the ones that simply listed their source were the ones I tested first.)
For the record, the settings below are working correctly now.
All scripts end in .cgi, all invoke #!/usr/bin/perl as the first line, all have the same permissions (with +x). I have appended the ls of the "cgi" directory, and the site's config file.
What am I missing that would cause some files to execute, while others list? Many thanks!
CGI directory, with permissions:
wnr#wnr-VirtualBox:/usr/local/webview/www/flow$ ls -al *.cgi
-rwxr-xr-x 1 wnr wnr 89720 Aug 9 2013 adhoc.cgi
-rwxr-xr-x 1 wnr wnr 10535 Apr 2 2013 adhocClick.cgi
-rwxr-xr-x 1 wnr wnr 6155 Mar 19 2012 adhocIf.cgi
-rwxr-xr-x 1 wnr wnr 929 Feb 25 2013 configdump.cgi
-rwxr-xr-x 1 wnr wnr 13325 Apr 8 2013 exporter.cgi
-rwxr-xr-x 1 wnr wnr 6624 Mar 19 2012 flow-collector-stats.cgi
-rwxr-xr-x 1 wnr wnr 2716 May 9 12:28 getFilter.cgi
-rwxr-xr-x 1 wnr wnr 124 May 9 12:48 hirich.cgi
-rwxr-xr-x 1 wnr wnr 88514 May 9 12:27 render.cgi
-rwxr-xr-x 1 wnr wnr 8242 Apr 1 2013 weblog.cgi
Note: weblog.cgi and hirich.cgi both execute as expected, the others simply list the source code...
Here's the site's config file:
wnr#wnr-VirtualBox:/usr/local/webview/www/flow$ cat /etc/apache2/sites-enabled/000-default.conf
<VirtualHost *:80>
# The ServerName directive sets the request scheme, hostname and port that
# the server uses to identify itself. This is used when creating
# redirection URLs. In the context of virtual hosts, the ServerName
# specifies what hostname must appear in the request's Host: header to
# match this virtual host. For the default virtual host (this file) this
# value is not decisive as it is used as a last resort host regardless.
# However, you must set it for any further virtual host explicitly.
#ServerName www.example.com
ServerAdmin webmaster#localhost
DocumentRoot /var/www/html
# Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
# error, crit, alert, emerg.
# It is also possible to configure the loglevel for particular
# modules, e.g.
#LogLevel info ssl:warn
ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined
# For most configuration files from conf-available/, which are
# enabled or disabled at a global level, it is possible to
# include a line for only one particular virtual host. For example the
# following line enables the CGI configuration for this host only
# after it has been globally disabled with "a2disconf".
#Include conf-available/serve-cgi-bin.conf
Alias "/webview" "/usr/local/webview/www"
<Directory "/usr/local/webview/www" >
# Options Indexes Includes FollowSymLinks ExecCGI
Options Indexes Includes FollowSymLinks ExecCGI
Require all granted
AllowOverride All
SetEnv no-gzip 1
AddHandler cgi-script .cgi
</Directory>
# <Directory "/usr/local/webview/www/flow" >
# Options +FollowSymLinks +ExecCGI
# AddHandler cgi-script .cgi
# </Directory>
</VirtualHost>
# vim: syntax=apache ts=4 sw=4 sts=4 sr noet
Check if you can execute the scripts directly on the shell, like so:
$ ./script.cgi
Your shebang might contain a trailing \r, a common trick is to replace #!/usr/bin/perl with #!/usr/bin/perl -w
Update: After further troubleshooting, I believe the problem was browser caching (sigh!) After force reloading (Cmd-Shift-R on Mac), they all execute as desired.
This explains why some of the scripts executed, and some didn't, even though they all had the same permissions and were in the same directory.
I believe the scripts that executed properly the first time were those that I tested when I had the configuration correct; the ones that simply listed their source were the ones I tested first.
For the record, the settings above are working correctly now.
And always remember: if your browser isn't showing what you expect, Force Reload.

Need guidance on using custom OpenSSL engine with Apache Server (Worker MPM)

I have built a custom OpenSSL engine which will offload RSA decryption operation to GPU.
The engine requires each incoming request to be handled by a thread.
As request comes, its data will be placed in a buffer and will be offloaded to GPU once the buffer threshold is exceeded.
To test this engine, I am using Apache server with Worker MPM enabled.
To generate concurrent client requests, I am utilizing Apache benchmark tool.
Ideally, when concurrent requests are issued, each requests will be handled by a server thread, and the buffer will be filled up with data from all the requests.
However, when tested, the buffer only contains data from 1 request.
I would appreciate if anybody can explain why only single thread is utilizing my engine?
Below is the listing of httpd.conf file
#
# This is the main Apache HTTP server configuration file. It contains the
# configuration directives that give the server its instructions.
# See <URL:http://httpd.apache.org/docs/2.4/> for detailed information.
# In particular, see
# <URL:http://httpd.apache.org/docs/2.4/mod/directives.html>
# for a discussion of each configuration directive.
#
# Do NOT simply read the instructions in here without understanding
# what they do. They're here only as hints or reminders. If you are unsure
# consult the online docs. You have been warned.
#
# Configuration and logfile names: If the filenames you specify for many
# of the server's control files begin with "/" (or "drive:/" for Win32), the
# server will use that explicit path. If the filenames do *not* begin
# with "/", the value of ServerRoot is prepended -- so "logs/access_log"
# with ServerRoot set to "/usr/local/apache2" will be interpreted by the
# server as "/usr/local/apache2/logs/access_log", whereas "/logs/access_log"
# will be interpreted as '/logs/access_log'.
#
# ServerRoot: The top of the directory tree under which the server's
# configuration, error, and log files are kept.
#
# Do not add a slash at the end of the directory path. If you point
# ServerRoot at a non-local disk, be sure to specify a local disk on the
# Mutex directive, if file-based mutexes are used. If you wish to share the
# same ServerRoot for multiple httpd daemons, you will need to change at
# least PidFile.
#
ServerRoot "/usr/local/apache2_mpmWorker"
#
# Mutex: Allows you to set the mutex mechanism and mutex file directory
# for individual mutexes, or change the global defaults
#
# Uncomment and change the directory if mutexes are file-based and the default
# mutex file directory is not on a local disk or is not appropriate for some
# other reason.
#
# Mutex default:logs
#
# Listen: Allows you to bind Apache to specific IP addresses and/or
# ports, instead of the default. See also the <VirtualHost>
# directive.
#
# Change this to Listen on specific IP addresses as shown below to
# prevent Apache from glomming onto all bound IP addresses.
#
#Listen 12.34.56.78:80
Listen 80
#
# Dynamic Shared Object (DSO) Support
#
# To be able to use the functionality of a module which was built as a DSO you
# have to place corresponding `LoadModule' lines at this location so the
# directives contained in it are actually available _before_ they are used.
# Statically compiled modules (those listed by `httpd -l') do not need
# to be loaded here.
#
# Example:
# LoadModule foo_module modules/mod_foo.so
#
LoadModule authn_file_module modules/mod_authn_file.so
#LoadModule authn_dbm_module modules/mod_authn_dbm.so
#LoadModule authn_anon_module modules/mod_authn_anon.so
#LoadModule authn_dbd_module modules/mod_authn_dbd.so
#LoadModule authn_socache_module modules/mod_authn_socache.so
LoadModule authn_core_module modules/mod_authn_core.so
LoadModule authz_host_module modules/mod_authz_host.so
LoadModule authz_groupfile_module modules/mod_authz_groupfile.so
LoadModule authz_user_module modules/mod_authz_user.so
#LoadModule authz_dbm_module modules/mod_authz_dbm.so
#LoadModule authz_owner_module modules/mod_authz_owner.so
#LoadModule authz_dbd_module modules/mod_authz_dbd.so
LoadModule authz_core_module modules/mod_authz_core.so
LoadModule access_compat_module modules/mod_access_compat.so
LoadModule auth_basic_module modules/mod_auth_basic.so
#LoadModule auth_form_module modules/mod_auth_form.so
#LoadModule auth_digest_module modules/mod_auth_digest.so
#LoadModule allowmethods_module modules/mod_allowmethods.so
#LoadModule file_cache_module modules/mod_file_cache.so
#LoadModule cache_module modules/mod_cache.so
#LoadModule cache_disk_module modules/mod_cache_disk.so
#LoadModule cache_socache_module modules/mod_cache_socache.so
LoadModule socache_shmcb_module modules/mod_socache_shmcb.so
#LoadModule socache_dbm_module modules/mod_socache_dbm.so
#LoadModule socache_memcache_module modules/mod_socache_memcache.so
#LoadModule macro_module modules/mod_macro.so
#LoadModule dbd_module modules/mod_dbd.so
#LoadModule dumpio_module modules/mod_dumpio.so
#LoadModule buffer_module modules/mod_buffer.so
#LoadModule ratelimit_module modules/mod_ratelimit.so
LoadModule reqtimeout_module modules/mod_reqtimeout.so
#LoadModule ext_filter_module modules/mod_ext_filter.so
#LoadModule request_module modules/mod_request.so
#LoadModule include_module modules/mod_include.so
LoadModule filter_module modules/mod_filter.so
#LoadModule substitute_module modules/mod_substitute.so
#LoadModule sed_module modules/mod_sed.so
#LoadModule deflate_module modules/mod_deflate.so
LoadModule mime_module modules/mod_mime.so
LoadModule log_config_module modules/mod_log_config.so
#LoadModule log_debug_module modules/mod_log_debug.so
#LoadModule logio_module modules/mod_logio.so
LoadModule env_module modules/mod_env.so
#LoadModule expires_module modules/mod_expires.so
LoadModule headers_module modules/mod_headers.so
#LoadModule unique_id_module modules/mod_unique_id.so
LoadModule setenvif_module modules/mod_setenvif.so
LoadModule version_module modules/mod_version.so
#LoadModule remoteip_module modules/mod_remoteip.so
#LoadModule proxy_module modules/mod_proxy.so
#LoadModule proxy_connect_module modules/mod_proxy_connect.so
#LoadModule proxy_ftp_module modules/mod_proxy_ftp.so
#LoadModule proxy_http_module modules/mod_proxy_http.so
#LoadModule proxy_fcgi_module modules/mod_proxy_fcgi.so
#LoadModule proxy_scgi_module modules/mod_proxy_scgi.so
#LoadModule proxy_wstunnel_module modules/mod_proxy_wstunnel.so
#LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
#LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
#LoadModule proxy_express_module modules/mod_proxy_express.so
#LoadModule session_module modules/mod_session.so
#LoadModule session_cookie_module modules/mod_session_cookie.so
#LoadModule session_dbd_module modules/mod_session_dbd.so
#LoadModule slotmem_shm_module modules/mod_slotmem_shm.so
LoadModule ssl_module modules/mod_ssl.so
#LoadModule lbmethod_byrequests_module modules/mod_lbmethod_byrequests.so
#LoadModule lbmethod_bytraffic_module modules/mod_lbmethod_bytraffic.so
#LoadModule lbmethod_bybusyness_module modules/mod_lbmethod_bybusyness.so
#LoadModule lbmethod_heartbeat_module modules/mod_lbmethod_heartbeat.so
LoadModule unixd_module modules/mod_unixd.so
#LoadModule dav_module modules/mod_dav.so
LoadModule status_module modules/mod_status.so
LoadModule autoindex_module modules/mod_autoindex.so
#LoadModule info_module modules/mod_info.so
#LoadModule cgid_module modules/mod_cgid.so
#LoadModule dav_fs_module modules/mod_dav_fs.so
#LoadModule vhost_alias_module modules/mod_vhost_alias.so
#LoadModule negotiation_module modules/mod_negotiation.so
LoadModule dir_module modules/mod_dir.so
#LoadModule actions_module modules/mod_actions.so
#LoadModule speling_module modules/mod_speling.so
#LoadModule userdir_module modules/mod_userdir.so
LoadModule alias_module modules/mod_alias.so
#LoadModule rewrite_module modules/mod_rewrite.so
<IfModule unixd_module>
#
# If you wish httpd to run as a different user or group, you must run
# httpd as root initially and it will switch.
#
# User/Group: The name (or #number) of the user/group to run httpd as.
# It is usually good practice to create a dedicated user and group for
# running httpd, as with most system services.
#
User daemon
Group daemon
</IfModule>
# 'Main' server configuration
#
# The directives in this section set up the values used by the 'main'
# server, which responds to any requests that aren't handled by a
# <VirtualHost> definition. These values also provide defaults for
# any <VirtualHost> containers you may define later in the file.
#
# All of these directives may appear inside <VirtualHost> containers,
# in which case these default settings will be overridden for the
# virtual host being defined.
#
#
# ServerAdmin: Your address, where problems with the server should be
# e-mailed. This address appears on some server-generated pages, such
# as error documents. e.g. admin#your-domain.com
#
ServerAdmin you#example.com
#
# ServerName gives the name and port that the server uses to identify itself.
# This can often be determined automatically, but we recommend you specify
# it explicitly to prevent problems during startup.
#
# If your host doesn't have a registered DNS name, enter its IP address here.
#
#ServerName www.example.com:80
#
# Deny access to the entirety of your server's filesystem. You must
# explicitly permit access to web content directories in other
# <Directory> blocks below.
#
<Directory />
AllowOverride none
Require all denied
</Directory>
#
# Note that from this point forward you must specifically allow
# particular features to be enabled - so if something's not working as
# you might expect, make sure that you have specifically enabled it
# below.
#
#
# DocumentRoot: The directory out of which you will serve your
# documents. By default, all requests are taken from this directory, but
# symbolic links and aliases may be used to point to other locations.
#
DocumentRoot "/usr/local/apache2_mpmWorker/htdocs"
<Directory "/usr/local/apache2_mpmWorker/htdocs">
#
# Possible values for the Options directive are "None", "All",
# or any combination of:
# Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews
#
# Note that "MultiViews" must be named *explicitly* --- "Options All"
# doesn't give it to you.
#
# The Options directive is both complicated and important. Please see
# http://httpd.apache.org/docs/2.4/mod/core.html#options
# for more information.
#
Options Indexes FollowSymLinks
#
# AllowOverride controls what directives may be placed in .htaccess files.
# It can be "All", "None", or any combination of the keywords:
# AllowOverride FileInfo AuthConfig Limit
#
AllowOverride None
#
# Controls who can get stuff from this server.
#
Require all granted
</Directory>
#
# DirectoryIndex: sets the file that Apache will serve if a directory
# is requested.
#
<IfModule dir_module>
DirectoryIndex index.html
</IfModule>
#
# The following lines prevent .htaccess and .htpasswd files from being
# viewed by Web clients.
#
<Files ".ht*">
Require all denied
</Files>
#
# ErrorLog: The location of the error log file.
# If you do not specify an ErrorLog directive within a <VirtualHost>
# container, error messages relating to that virtual host will be
# logged here. If you *do* define an error logfile for a <VirtualHost>
# container, that host's errors will be logged there and not here.
#
ErrorLog "logs/error_log"
#
# LogLevel: Control the number of messages logged to the error_log.
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
#
LogLevel warn
<IfModule log_config_module>
#
# The following directives define some format nicknames for use with
# a CustomLog directive (see below).
#
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %b" common
<IfModule logio_module>
# You need to enable mod_logio.c to use %I and %O
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
</IfModule>
#
# The location and format of the access logfile (Common Logfile Format).
# If you do not define any access logfiles within a <VirtualHost>
# container, they will be logged here. Contrariwise, if you *do*
# define per-<VirtualHost> access logfiles, transactions will be
# logged therein and *not* in this file.
#
CustomLog "logs/access_log" common
#
# If you prefer a logfile with access, agent, and referer information
# (Combined Logfile Format) you can use the following directive.
#
#CustomLog "logs/access_log" combined
</IfModule>
<IfModule alias_module>
#
# Redirect: Allows you to tell clients about documents that used to
# exist in your server's namespace, but do not anymore. The client
# will make a new request for the document at its new location.
# Example:
# Redirect permanent /foo http://www.example.com/bar
#
# Alias: Maps web paths into filesystem paths and is used to
# access content that does not live under the DocumentRoot.
# Example:
# Alias /webpath /full/filesystem/path
#
# If you include a trailing / on /webpath then the server will
# require it to be present in the URL. You will also likely
# need to provide a <Directory> section to allow access to
# the filesystem path.
#
# ScriptAlias: This controls which directories contain server scripts.
# ScriptAliases are essentially the same as Aliases, except that
# documents in the target directory are treated as applications and
# run by the server when requested rather than as documents sent to the
# client. The same rules about trailing "/" apply to ScriptAlias
# directives as to Alias.
#
ScriptAlias /cgi-bin/ "/usr/local/apache2_mpmWorker/cgi-bin/"
</IfModule>
<IfModule cgid_module>
#
# ScriptSock: On threaded servers, designate the path to the UNIX
# socket used to communicate with the CGI daemon of mod_cgid.
#
#Scriptsock cgisock
</IfModule>
#
# "/usr/local/apache2_mpmWorker/cgi-bin" should be changed to whatever your ScriptAliased
# CGI directory exists, if you have that configured.
#
<Directory "/usr/local/apache2_mpmWorker/cgi-bin">
AllowOverride None
Options None
Require all granted
</Directory>
<IfModule mime_module>
#
# TypesConfig points to the file containing the list of mappings from
# filename extension to MIME-type.
#
TypesConfig conf/mime.types
#
# AddType allows you to add to or override the MIME configuration
# file specified in TypesConfig for specific file types.
#
#AddType application/x-gzip .tgz
#
# AddEncoding allows you to have certain browsers uncompress
# information on the fly. Note: Not all browsers support this.
#
#AddEncoding x-compress .Z
#AddEncoding x-gzip .gz .tgz
#
# If the AddEncoding directives above are commented-out, then you
# probably should define those extensions to indicate media types:
#
AddType application/x-compress .Z
AddType application/x-gzip .gz .tgz
#
# AddHandler allows you to map certain file extensions to "handlers":
# actions unrelated to filetype. These can be either built into the server
# or added with the Action directive (see below)
#
# To use CGI scripts outside of ScriptAliased directories:
# (You will also need to add "ExecCGI" to the "Options" directive.)
#
#AddHandler cgi-script .cgi
# For type maps (negotiated resources):
#AddHandler type-map var
#
# Filters allow you to process content before it is sent to the client.
#
# To parse .shtml files for server-side includes (SSI):
# (You will also need to add "Includes" to the "Options" directive.)
#
#AddType text/html .shtml
#AddOutputFilter INCLUDES .shtml
</IfModule>
#
# The mod_mime_magic module allows the server to use various hints from the
# contents of the file itself to determine its type. The MIMEMagicFile
# directive tells the module where the hint definitions are located.
#
#MIMEMagicFile conf/magic
#
# Customizable error responses come in three flavors:
# 1) plain text 2) local redirects 3) external redirects
#
# Some examples:
#ErrorDocument 500 "The server made a boo boo."
#ErrorDocument 404 /missing.html
#ErrorDocument 404 "/cgi-bin/missing_handler.pl"
#ErrorDocument 402 http://www.example.com/subscription_info.html
#
#
# MaxRanges: Maximum number of Ranges in a request before
# returning the entire resource, or one of the special
# values 'default', 'none' or 'unlimited'.
# Default setting is to accept 200 Ranges.
#MaxRanges unlimited
#
# EnableMMAP and EnableSendfile: On systems that support it,
# memory-mapping or the sendfile syscall may be used to deliver
# files. This usually improves server performance, but must
# be turned off when serving from networked-mounted
# filesystems or if support for these functions is otherwise
# broken on your system.
# Defaults: EnableMMAP On, EnableSendfile Off
#
#EnableMMAP off
#EnableSendfile on
# Supplemental configuration
#
# The configuration files in the conf/extra/ directory can be
# included to add extra features or to modify the default configuration of
# the server, or you may simply copy their contents here and change as
# necessary.
# Server-pool management (MPM specific)
Include conf/extra/httpd-mpm.conf
# Multi-language error messages
#Include conf/extra/httpd-multilang-errordoc.conf
# Fancy directory listings
#Include conf/extra/httpd-autoindex.conf
# Language settings
#Include conf/extra/httpd-languages.conf
# User home directories
#Include conf/extra/httpd-userdir.conf
# Real-time info on requests and configuration
#Include conf/extra/httpd-info.conf
# Virtual hosts
#Include conf/extra/httpd-vhosts.conf
# Local access to the Apache HTTP Server Manual
#Include conf/extra/httpd-manual.conf
# Distributed authoring and versioning (WebDAV)
#Include conf/extra/httpd-dav.conf
# Various default settings
#Include conf/extra/httpd-default.conf
# Configure mod_proxy_html to understand HTML4/XHTML1
<IfModule proxy_html_module>
Include conf/extra/proxy-html.conf
</IfModule>
# Secure (SSL/TLS) connections
Include conf/extra/httpd-ssl.conf
#
# Note: The following must must be present to support
# starting without SSL on platforms with no /dev/random equivalent
# but a statically compiled-in mod_ssl.
#
<IfModule ssl_module>
SSLRandomSeed startup builtin
SSLRandomSeed connect builtin
</IfModule>
#
# uncomment out the below to deal with user agents that deliberately
# violate open standards by misusing DNT (DNT *must* be a specific
# end-user choice)
#
#<IfModule setenvif_module>
#BrowserMatch "MSIE 10.0;" bad_DNT
#</IfModule>
#<IfModule headers_module>
#RequestHeader unset DNT env=bad_DNT
#</IfModule>
LoadFile /usr/local/cuda-5.5/lib64/libcudart.so.5.5
LoadFile /usr/lib/x86_64-linux-gnu/openssl-1.0.0/engines/libmiaccsecure.so

Wildcard DNS for only first level subdomain

I want to know how to set a wildcard DNS for only first level subdomain, example:
user.example.com // valid
www.user.example.com // invalid
I have my BIND zone domain configured like this:
; example.com
$TTL 86400
# IN SOA ns.example.com. domain.example.com. (
2014021001 ; Serial
28800 ; Refresh
1800 ; Retry
604800 ; Expire - 1 week
86400 ) ; Minimum
IN NS ns
IN NS ns1
ns IN A 1.2.3.4 ; An IP
ns1 IN A 1.2.3.4 ; An IP
# IN A 1.2.3.4 ; An IP
*.example.com IN A 1.2.3.4 ; An IP
www IN A 1.2.3.4 ; An IP
# IN TXT "v=spf1 a mx -all"
And my Apache virtual host config is like this:
<VirtualHost 1.2.3.4:80>
ServerAdmin domain#example.com
DocumentRoot /var/www/html/example.com
ServerAlias www.example.com
ServerName example.com
ErrorLog logs/example.com-error_log
CustomLog logs/example.com-access_log common
</VirtualHost>
<VirtualHost 1.2.3.4:80>
ServerAdmin domain#example.com
DocumentRoot /var/www/html/apps.example.com
ServerAlias *.example.com
ServerName apps.example.com
ErrorLog logs/apps.example.com-error_log
CustomLog logs/apps.example.com-access_log common
</VirtualHost>
Please help!
You can't do it in the DNS - a wildcard will match one or more DNS labels.
You may be able to do it in the Apache server, perhaps by using mod_rewrite to match on the supplied hostname and returning a 404 error if the hostname is invalid.

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