I'm trying to run an Apache Solr Service (on its emdedded jetty server) on a remote server. The admin has provided me following information:
DNS: my.server.com
IP: xxx.xxx.xxx
Server OS: 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u1 (2016-09-03) x86_64 GNU/Linux
Only Port 80 is accessible. On the server we want to deploy Apache Solr and a microservice which uses Solr as search engine. I want to use Apache Webserver to forward the HTTP-Request to the Solr Admin UI and to the microservice UI, but it doesn't seem to work, I use Apache Server version: Apache/2.4.10 (Debian)
Server built: Sep 15 2016 20:44:43.
I installed Apache and started the server, so far everything works as expected. I can access the admin view from Apache entering the DNS in my browser.
I enabled a few modules following this articel https://www.digitalocean.com/community/tutorials/how-to-use-apache-http-server-as-reverse-proxy-using-mod_proxy-extension:
a2enmod proxy
a2enmod proxy_http
a2enmod proxy_ajp
a2enmod rewrite
a2enmod deflate
a2enmod headers
a2enmod proxy_balancer
a2enmod proxy_connect
a2enmod proxy_html
Then I tried to configure a virtual host under /etc/apache2/sites-available/myconf.conf:
<VirtualHost *:80>
DocumentRoot /var/www/html
ErrorLog /var/log/apache2/error.log
CustomLog /var/log/apache2/access.log combined
ProxyPass /solr http://my.server.com:8983 retry=0 timeout=5
ProxyPassReverse /solr http://my.server.com:8983
ProxyPass /microservice http://my.server.com:6868 retry=0 timeout=5
ProxyPassReverse /microservice http://my.server.com:6868
LogLevel debug
</VirtualHost>
Solr uses its standard port 8983 and the microservice will be on port 6868. When I try to acces solr with http://my.server.com/solr I get an HTTP 503 Service unavailable.
I first tried this:
/usr/sbin/setsebool -P httpd_can_network_connect 1
But it changed nothing. I also had to install first:
apt-get install policycoreutils
to make this option available. The solr service seems to be ok:
solr status
Found 1 Solr nodes:
Solr process 14082 running on port 8983
{
"solr_home":"/etc/apache-solr/solr-6.2.0/server/solr",
"version":"6.2.0 764d0f19151dbff6f5fcd9fc4b2682cf934590c5 - mike - 2016-08-20 05:41:37",
"startTime":"2016-10-07T12:02:05.300Z",
"uptime":"0 days, 1 hours, 29 minutes, 55 seconds",
"memory":"29.7 MB (%6.1) of 490.7 MB"}
The Apache log keeps saying:
The timeout specified has expired: AH00957: HTTP: attempt to connect to xxx.xxx.xxx:8983 (my.server.com) failed
AH00959: ap_proxy_connect_backend disabling worker for (my.server.com) for 0s
AH01114: HTTP: failed to make connection to backend: my.server.com
Without my timeout setting everthing keeps the same but it takes ages before I get the 503 Error.
Any hints? After one day struggeling I'm depressed ... all I want is to finish the task.
Thanks in advance!
It turns out that I needed to append a slash to the urls:
ProxyPass /solr/ http://my.server.com:8983/ retry=0 timeout=5
ProxyPassReverse /solr/ http://my.server.com:8983/
ProxyPass /microservice/ http://my.server.com:6868/ retry=0 timeout=5
ProxyPassReverse /microservice/ http://my.server.com:6868/
Related
I've got a somewhat unique (maybe not, but unique to me) architecture here for some home apps that variously require PHP 5.6 and PHP 7.1. This is the architecture recommended to me by /r/docker:
One container acting as Apache Reverse Proxy that will ingest a DNS request on port 80 and then pass it to one of the below containers' ports.
One container running Apache with PHP 5.6, listening on port 8081.
One container running Apache with PHP 7.1, listening on port 8080.
I've been able to get domainname.com to work this way, by setting up the following domainname.com.conf in /etc/apache2/sites-available:
<VirtualHost *:80>
ServerName domainname.com
<Proxy *>
Allow from localhost
</Proxy>
ProxyPass "/" "http://public.ip.address:8080/" retry=0
ProxyPreserveHost On
</VirtualHost>
However, one of my subdomains needs to push to an application on the PHP 5.6 side. So I've set up this subdomain.domainname.com.conf:
<VirtualHost *:80>
ServerName subdomain.domainname.com
<Proxy *>
Allow from localhost
</Proxy>
ProxyPass "/" "http://public.ip.address:8081/subdomain/" retry=0
ProxyPreserveHost On
</VirtualHost>
Indeed, going directly to http://public.ip.address:8081/subdomain/ loads the application just fine, but for whatever reason, going to http://subdomain.domain.com gives a 503. Originally it was just showing the Apache on Ubuntu page, which is when I realized I needed to a2ensite and reload Apache, which has since been done.
The logs show this:
[Wed Jul 10 21:36:59.049131 2019] [proxy:error] [pid 2298:tid 139882856969984] (113)No route to host: AH00957: HTTP: attempt to connect to public.ip.address:8081 (3.220.176.240) failed
[Wed Jul 10 21:36:59.049182 2019] [proxy_http:error] [pid 2298:tid 139882856969984] [client 128.229.4.2:58611] AH01114: HTTP: failed to make connection to backend: public.ip.address
We know that the system can access 8080 just fine, so I'm not sure why it's struggling with this traffic. As mentioned above, hitting the ProxyPass URL directly from the outside loads the page fine, so traffic inbound to that container is fine. SELinux is disabled. This is in AWS and Security Groups are configured properly as far as I can tell (see: traffic works from outside).
Using the public IP address is the only way I've been able to get inter-container traffic to work, because using Docker's bridge IPs didn't work previously.
On the old system, when all my apps were just PHP 5.6, I had a standard VirtualHost statement that just took in the subdomain.domain.com and pointed it to a specific DocumentRoot. I can't do that here since the reverse proxy container needs to hand off the traffic to the container with the right PHP version.
Many thanks for any tips or tricks here.
I need to forward all traffic from specified port to a Unix Domain Socket in Apache:
In sites-enabled/000-default.conf I have defined a VirtualHost:
<VirtualHost *:8091>
ProxyRequests Off
<Proxy *>
Order deny,allow
Allow from all
</Proxy>
ProxyPass / unix:/var/lib/jenkins/workspace/myproject/mysocket.sock|http://127.0.0.1/
ProxyPassReverse / unix:/var/lib/jenkins/workspace/myproject/mysocket.sock|http://127.0.0.1/
</VirtualHost>
In ports.conf I have:
Listen 80
Listen 8091
I have both proxy and proxy_http mods enabled:
krzysiek:/etc/apache2$ a2enmod proxy
Module proxy already enabled
krzysiek:/etc/apache2$ a2enmod proxy_http
Module proxy already enabled
I am using Apache 2.4.7 and offical documentation states that:
In 2.4.7 and later, support for using a Unix Domain Socket is available by using a target which prepends unix:/path/lis.sock|
When I reload Apache I get error:
krzysiek:/etc/apache2$ sudo service apache2 restart
* Restarting web server apache2 [fail]
* The apache2 configtest failed.
AH00526: Syntax error on line 64 of /etc/apache2/sites-enabled/000-default.conf:
ProxyPass URL must be absolute!
I tried changing:
ProxyPass / unix:/var/(...)
To:
ProxyPass / unix:///var/(...)
Then Apache reloads correctly but forwarding DOES NOT work, error.log says:
[proxy:warn] [pid 22436] [client 10.0.4.19:47662] AH01144: No protocol handler was valid for the URL /. If you are using a DSO version of mod_proxy, make sure the proxy submodules are included in the configuration using LoadModule.
Could you explain me what I'm doing wrong? Or how do I forward traffic from port to unix socket on Apache correctly?
Might be a bit late 🙂, but the following apache config works for me:
ProxyRequests off
Define SOCKET_NAME /path/to/my.sock
ProxyPass / unix:${SOCKET_NAME}|uwsgi://%{HTTP_HOST}/
ProxyPassReverse / unix:${SOCKET_NAME}|uwsgi://%{HTTP_HOST}/
with modules proxy and proxy_uwsgi loaded.
Important do not place your socket in /tmp (I think systemd prevents the apache process to directly access it for security reasons).
Also, watch out for the file permissions.
I am trying to configure httpd mod_proxy to serve as a reverse proxy in Google Cloud Platform. I set up a TCP load balancer and tried something like this in a VM apache config.
<Proxy "*">
</Proxy>
Listen 7001
Listen 7002
<VirtualHost *:7001>
ProxySourceAddress <LB IP 1 here>
</VirtualHost>
<VirtualHost *:7002>
ProxySourceAddress <LB IP 2 here>
</VirtualHost>
Apache logs show my attempts to GET through to yandex.ru via proxy:
AH01114: HTTP: failed to make connection to backend: www.yandex.ru
(70007)The timeout specified has expired: AH00957: HTTP: attempt to connect to 5.255.255.5:80 (*) failed
httpd version 2.4.6. OS Centos 7.
What am I missing here?
I've got a problem with my apache configuration.
I'm running a apache2 in a docker container.
In the same container is a webrick running on port 3000
What I want is that when someone calls subdomain.mydomain.de
There should be a pass through to
subdomain.mydomain.de:3000
I've done this:
sudo nano /etc/apache2/sites-enabled/000-default.conf
added this in default.conf
<VirtualHost *:80>
ProxyPreserveHost On
ProxyRequests Off
ServerName mydomain.de
ServerAlias *.mydomain.de
ProxyPass / http://subdomain.mydomain.de:3000/
ProxyPassReverse / http://subdomain.mydomain.de:3000/
</VirtualHost>
a2enmod proxy
sudo /etc/init.d/apache2 restart
But all what I got is this:
Internal Server Error
The server encountered an internal error or misconfiguration and was
unable to complete your request.
Please contact the server administrator at [no address given] to
inform them of the time this error occurred, and the actions you
performed just before this error.
More information about this error may be available in the server error
log.
Solution for this problem is:
sudo a2enmod proxy
sudo a2enmod proxy_http
sudo service apache2 reload
I have a new rasperryPi webserver running raspbian that I'm trying to use to proxy to web-enabled device from FieldServer Tech (fieldserver.com) on our intranet. Inside /etc/apache2/sites-available/default I've added the following line:
<Location /modbus/>
ProxyPass http://192.168.10.124/
</Location>
After restarting the webserver when I try to browse to the defined proxy address
http://192.168.10.7/modbus/
I get the password prompt from the FieldServer device but after authenticating I get an error indicating the initial page cannot be loaded:
Not Found
The requested URL /app/profiles/profiles.htm was not found on this server.
Apache/2.2.22 (Debian) Server at 192.168.10.7 Port 80
Is there a way I can address this problem from the apache conf or is the problem with the FieldServer device?
More system info:
$ cat /etc/os-release*
PRETTY_NAME="Raspbian GNU/Linux 7 (wheezy)"
NAME="Raspbian GNU/Linux"
VERSION_ID="7"
VERSION="7 (wheezy)"
ID=raspbian
$ dpkg-query -l | grep apache
ii apache2 2.2.22-13+deb7u3
I believe you need to add the ProxyPassReverse directive to the apache configuration:
<Location /modbus/>
ProxyPass http://192.168.10.124/
ProxyPassReverse http://192.168.10.124/
</Location>
This answer has a pretty concise explanation on what ProxyPassReverse does, if you're curious.