I am getting started with OpenBSD (using VirtualBox) and would like to know how one can try and choose between the window managers FVWM, TWM and CWM.
In order to run a specific window manager:
Is there some configuration file to modify?
Or some specific command to run?
There is a lot of information on the net, but nothing clear in what I read.
The simplest way to run X on OpenBSD is with the xenodm display manager. Enable it at boot :
# rcctl enable xenodm
# rcctl start xenodm
After that, you can customize your X session by creating a $HOME/.xsession script to start your window manager. Example with FVWM :
export ENV=$HOME/.kshrc
exec fvwm
See xinit manpage and FAQ for the X Widnow System.
I need to start a win10 app remotly.
What I already tried is:
for starters I used this path: shell:appsfolder\appname!app
using psexec to start the app doesn't work
same with powershell (over psexec as well as native ps remote)
also tried starting it indirectly from a .cmd file and .vbs file executing form psexec
all these command and files are working if executed directly on the client. But if I try to execute them remotly I get the error message path not found or it just nothing happening and really nothing I checked if the appropriate exe file is running via taskmanager. Apparently there must be some issue with the name translation of shell:appsfolder over a remote session.
I run T-Plan robot which connects to my windows machine and executes some script.
On successful execution of script,I export the generated xml file via pscp to my linux machine.
T-paln robot acts as a 3rd party freeware to pass some command via cmd on windows machine.
This takes place by running a simple batch file on t-plan robot.However,the script which sends out command to windows disconnects itself based on some explicitly declaring timeout seconds.
I want to write a tcl code which launches this application on linux machine and once the command has generated a successful outcome as xml file and is received on linux machine,it should check whether the xml file exists on the specified directory and terminates the application right at that moment.I want this because the next code section would parse this received xml report and perform other actions.
I think there should be some class in tcl which kills the process/service on any environment ,here I need to perform that in linux.
Sincerely waiting for reply .Thanks in advance
To kill a process on the same Linux machine, provided you've got permission to do so (i.e., you're running as the same user), you do either:
package require Tclx
kill $processId
Or:
exec kill $processId
(The former doesn't require an external command — it does the syscall directly — but the second doesn't need the Tclx pacakge.)
Both of these require the process ID.
To test if a file exists, use file exists like this:
if {[file exists $theFilename]} {
puts "Woohoo! $theFilename is there!"
}
To kill something on a remote machine, you need to send a command to run to that machine. Perhaps like:
exec ssh $remoteMachine kill $remotePID
Getting the $remotePID can be “interesting” and may require some considerable thought in your whole system design. If calling from Windows to Linux, replace ssh with plink. If going the other way, you're talking about doing:
exec ssh $remoteMachine taskkill /PID $remotePID
This can get very complicated, and I'm not sure if the approach you're taking right now is the right one.
I'm new comer to Laravel 4 but not newbie for creating cron or using framework (codeIgniter / Yii, ...)
I set up an installation of Laravel 4, in my localhost and the same in my production web server.
When I launch a command via cron :
php -q path/to/laravel/artisan command:myspecificcommand or (same effect)
php -q path/to/laravel/artisan cache:clear
Then I obtain an Exception:
RuntimeException
Failed to start the session because headers have already been sent by "" at line 0.
It occurs in the vendor/symfony/http-foundation/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php
when I launch those commands in the console of MacOs all stuffs are achieved correctly.
I use in my production server: php 5.3.13, there is a output_buffered set (I look for that due to the title of the error) but I'm completly stuck.
I give image of the result (there is the stack)
It often very much depends on your hosting and how they've got things set up. Each hosting company will have their own way of setting things up.
PHP CLI is the command line interface for PHP (e.g. for creating standalone applications). The CLI version is intended to run on a command line (hence "Command Line Interface"). This one does not handle headers, or any other server-related things.
Although not a duplicate of your question, you might find this helpful: What is difference between php cli and php cgi?
I am trying to execute a bat file on remote windows machine on cloud from my Linux. The bat files starts selenium server and then my selenium tests are run. I am not able to start selenium RC server on that machine. I tried with Telnet but the problem with it is when telnet session is closed the RC server port is also closed. As my code my code has to start the server so I tried with ANT telnet task and also executed shell script of telnet in both ways the port was closed.
I read about Open SSH, psexec for linux and cygwin. But i am not getting how to use these and will they will solve my problem.
I have tried to start a service which will start the server but in this method i am not getting browser visible all tests are running in background as my script takes screen shot browser visibility is must.
Now my Question is what to use and which will be preferable for my job.
and what ever i choose should be executed by code it may be by shell, ant or php.
Thanks in advance.
Let's go through the various options you mentioned:
psexec: This is pretty much a PC only thing. Plus, you must make sure that newer Windows machines can get through the UAC that are setup by default. UAC is the thing you see all the time on Vista and Windows 7 when you try to do something that requires administrator's privileges. You can try something called winexe which is a Linux program that can do the psexec protocol, but I've had problems getting it to work.
OpenSSH: There are two main flavors of SSH, and Open SSH is the one used by the vast majority of sites. SSH has several advantages over other methods:
SSH is secure: Your network traffic is encrypted.
SSH can be password independent: You can setup SSH to use private/public keys. This way, you don't even have to know the password on the remote server. This makes it more secure since you don't have passwords being stored on various systems. And, in many Windows sites, passwords have to be changed every month or so or the account is locked.
SSH can do more than just execute remote commands: There are two sub-protocols on SSH called SCP and SFTP. These allow you to transfer files between two machines. Since they work over SSH, you get all of the advantages of SSH including encrypted packets, and public/private key protection.
SSH is well implemented in the Unix World: You'll find SSH clients built into Ant, Maven, and other build tools. Programs like CVS, Subversion, and Git can work over SSH connections too. Unfortunately, the Windows World operates in a different space time dimension. To use SSH on a Windows system requires third party software like Cygwin.
Cygwin: Cygwin is sort of an odd beast. It's a layer on top of Windows that allows many of the Unix/GNU libraries to work over Windows. It was originally developed to allow Unix developers to run their software on Windows DOS systems. However, Cygwin now contains a complete Unix like system including tools such as Perl and Python, BASH shell, and many utilities such as an SSH server. Since Cygwin is open source, you can download it for free and run SSH server. Unfortunately, I've had problems with Cygwin's SSH server. Another issue: If you're running programs remotely, you probably want to run them in a Windows environment and not the Cygwin environment.
I recommend that you look at WinSSHD from Bitvise. It's an OpenSSH implementation of the SSH Server, but it's not open source. It's about $100 per license and you need a license on each server. However, it's a robust implementation and has all of the features SSH has to offer.
You can look at CoSSH which is a package of Cygwin utilities and OpenSSH server. This is free and all open source, but if you want an easy way of setting it up, you have to pay for the Advanced Administrator Console. You don't need the Advanced Administrator Console since you can use Cygwin to set everything up, and it comes with a basic console to help.
I prefer to use cygwin and use SSH to then log in to the windows machine to execute commands. Be aware that, by default, cygwin doesn't have OpenSSH installed.
Once you have SSH working on the windows machine you can run a command on it from the Linux machine like this:
ssh user#windowsmachine 'mycommand.exe'
You can also set up ssh authentication keys so that you don't need to enter a password each time.
I've succeeded to run remote command on W2K3 via EXPECT on Debian Buster. Here is the script of mine:
#!/usr/bin/expect
#
# execute the script in the following manner:
#
# <script> <vindoze> <user> <password> <command>
#
#
set timeout 200
set hostname [lindex $argv 0]
set username [lindex $argv 1]
set password [lindex $argv 2]
set command [lindex $argv 3]
spawn telnet $hostname
expect "login:"
send "$username\r"
expect "password:"
send "$password\r"
expect "C:*"
send "dir c:\\tasks\\logs \r"
# send $command
expect "C:*"
send "exit\r\r\r"
Bear in mind that you need to enable TELNET service of the Win machine and also the user which you are authenticated with must be member of TelnetClients built-in Win group. Or as most of the Win LazyMins do - authenticate with Admin user ;)
I use similar "expect" script for automated collecting & backup configuration of CLI enabled network devices like Allied Telesyn, Cisco, Planet etc.
Cheers,
LAZA
Not a very secure way, but if you have a running webserver you can use PHP or ASP to trigger a system command. Just hide thgat script under www.myserver.com/02124309c9867a7616972f52a55db1b4.php or something. And make sure the command are fixed written in the code, not open via parameter ...