I have a project running on ubuntu (installed on vm machine(ipaddress-172.22.240.54) on server ), jboss server port 8180
I need to access that link via http://172.22.240.54/employeeConnect/rest(without mentioning port number)
What changes are required in httpd file and server.xml file?
You will need to add the following to your httpd.conf
ProxyPass /employeeConnect/rest http://localhost:8180/employeeConnect/rest
ProxyPassReverse /employeeConnect/rest http://localhost:8180/employeeConnect/rest
Related
I have an Digitalocean Droplet (virtual private server) that has Ubuntu 18.04 running on it. I installed Apache Web Server and have my website running on it . It's open to traffic on HTTP port 80. My virtual host is setup at /var/www/MyDomainNameHere/public_html/ and I do have a custom domain name pointing to the IP.
I am trying to deploy/run a executable .jar that contains a Spring boot API. It has some basic GET/POST/DELETE HTTP requests. When I run the jar by
java -jar rest-service.jar
I get this error message
***************************
APPLICATION FAILED TO START
***************************
Description:
Web server failed to start. Port 80 was already in use.
Does this mean the Apache Web Server that is open to Traffic on port 80 on this Digital ocean droplet won't let me run the API jar on the same server (The JAR loads up an Apache Tomcat embedded server, I set it to port 80 based on research)? Do I need to buy another droplet? Or can I maybe change the port number for the spring boot jar to something other than port 80? It's an API, so I need to be able to hit the end points
Yes, Apache Web Server using the port and you change your spring application 80 to any other port and use the reverse proxy in Apache Web server. here is the link to configure the reverse proxy
Apache as a Reverse Proxy with mod_proxy
So I will answer my own question. I googled and searched stackoverflow but most people were using the reverse proxy to direct traffic to their standalone embedded Tomcat server (most of time a Spring Boot app) which wasn't applicable to my situation.
However, I already had a static html website at alpizano.me hosted on Digital Ocean that I wanted to use as my Front-end, and only forward certain HTTP requests to my Spring Boot app, which was a REST API essentially.
So after installing Java and PostgreSQL on my DigitalOcean droplet, I SCP'd my JAR file (running ./mvnw clean package -Dmaven.test.skip=true to create it) to my server to a directory like, /var/myapp.
Then after researching for a few days and trying multiple things, I was able to figure out the combination that would allow me to view my website when navigating to alpizano.me, but still allow me to hit my API endpoints that were running on my server as-well, after I ran my jar via java -jar myapp.jar
So I basically had to set up my .conf file in the /etc/apache2/sites-available dir (I only used 1 virtual host for this project) as:
<VirtualHost *:80>
ServerName yourservername.com
DocumentRoot /var/www/yourservername.com/public_html
ProxyPreserveHost On
ProxyPass /api http://127.0.0.1:8080/
ProxyPassReverse /api http://127.0.0.1:8080/
</VirtualHost>
Notice the /api route for the routing that goes to the embedded Tomcat at port 8080 (you can't use port 80 or it will conflict with Apache Server already listening on port 80), else if it's just / , then it will not allow traffic to base website anymore (alpizano.me), which isn't what I wanted.
This wouldn't be needed if you just had a standalone app that you wanted to route traffic, then you could just use / as your route obviously. I saw other posts talking about forwarding the headers but that didn't seem to make a difference for me and I believe ProxyPreserveHost On takes care of that anyway
Good luck.
References:
https://www.digitalocean.com/community/tutorials/how-to-use-apache-as-a-reverse-proxy-with-mod_proxy-on-ubuntu-16-04
I have to tomcat servers running in my server. And I wanted to do a virtual host routing. So initially I tried it with one tomcat which is running in 8081 port and ajp port enabled to 8011 in the tomcat server.xml file
My conf file in the /etc/apache2/sites-available/mydomain_name.com.conf looks likes this
<VirtualHost *:80>
ProxyRequests off
ProxyPreserveHost On
ServerName mydomain_name.com
ServerAdmin ubuntu#mydomain_name.com
ProxyPass / ajp://localhost:8011/
ProxyPassReverse / ajp://localhost:8011/
</VirtualHost>
Then I did
sudo a2ensite mydomain_name.com.conf
sudo service apache reload
Every thing went find, no issues. And I also ensured the port 8011 is listening.
But when I try to access the server from my personal laptop, the request is blocked by Google chrome.
I have enabled these configurations in the server too.
sudo a2enmod proxy
sudo a2enmod proxy_ajp
sudo a2enmod proxy_http
sudo service apache2 restar
Have anyone has came across this issue ? Shedding some light would be really helpful. Because I have done some thing similar 1 year back, then this issue did not occur, and I'm only trying to direct it to the tomcat home page. Which is a bare minimal page.
After several frustrating hours found the issue. Hope this might help if any one came across this same issue.
Although the port 80 was opened via the aws management console security groups, internally the ports were firewall protected by the ip tables. So by removing the ip-tables entry for the port 80 I was able to make the virtual host work.
I want to access an application 'myapp' hosted in tomcat server(8080) currently can be accessed by http://example.com:8080/myapp in http://example.com/myapp (apache server, port 80). What should I do for that? If I use port forwarding 80 to 8080 will I be able to access phpMyadmin, or any other applications running in port 80? Which method I should follow to accomplish the task?
I am using Ubuntu server 14.04.
Use mod_proxy. Load module...
Second define in your virtual host:
ProxyPass /myapp http://example.com:8080/myapp
ProxyPassReverse /myapp http://example.com:8080/myapp
But this will work when your tomcat apps has only relative links.
I have a web running on Tomcat7 (installed on ubuntu 14.10). The application is available at localhost:8080/myapp.
I would like to access it with the url : myapp.com
I've tried many tutorials on the web (update server.xml by adding a , update /etc/hosts file, etc). None of them work.
If you know how I could achieve this, that would be great.
Thanks in advance!
Deploy your web application as a ROOT.war under webapps.
Open your server.xml and change the port from 8080 to 80.
Add below line to your host file.
127.0.0.1 myapp.com
Now try http://myapp.com
Hope this helps!
I'm using an Amazon Linux AMI instance and I've deployed a war file on it.
The deployed war file shows up in the 'webapps' folder of tomcat6.
The real problem is - Apache HTTP 2.2 server is also installed.
When I access my instance's URL (http://ec2-107-20-92-32.compute-1.amazonaws.com), I see the default page of Apache HTTP 2.2 Only, which, if I'm not wrong, works on port number 80.
Now, how do I get my Apache HTTP 2.2 Server communicate with tomcat6 to display the website deployed in Tomcat?
Or, are there any other alternatives to it?
(I use MacOS X's terminal to connect to my Instance and I uploaded the WAR on S3 to deploy it in tomcat.)
TIA :)
In addition to mac's suggestions (shutting down Apache and making Tomcat listen at port 80, or configuring the Tomcat connector on Apache), you might also set a pair of ProxyPass/ProxyPassReverse directives on your Apache configuration, like the example at mod_proxy documentation.
If you decide to follow this suggestion, your rules would look like follows (in the VirtualHost listening at port 80):
ProxyPass / http://ec2-107-20-92-32.compute-1.amazonaws.com:8080/
ProxyPassReverse / http://ec2-107-20-92-32.compute-1.amazonaws.com:8080/
Nothing worked.
I deleted the instance and tried the same with Ubuntu 12.04 64 bit instance, it worked.
I have no clue why it didnt work in Amazon Linux AMI :(