OK Here it is.
Activating Nginx to proxy to Apache on Centos 5.4 with Plesk 9.3.0
1. yum install nginx (it can sit there until we are ready to switch it on)
2. Installed mod_praf (had to mess about a bit to get it to compile on centos5)
Code:
# Get tools needed by Apache and restart Apache to load new settings
$ yum install httpd-devel
$ yum --exclude=subversion --exclude=cvs groupinstall 'Development Tools'
$ service httpd restart
# Get mod_praf and install
$ wget http://stderr.net/apache/rpaf/download/mod_rpaf-0.6.tar.gz
$ tar zxvf mod_rpaf-0.6.tar.gz
$ cd mod_rpaf-0.6
# Patch Makefile as required for CentOS 5
$ sed -ie 's/apxs2/apxs/' Makefile
$ make rpaf-2.0
$ make install-2.0
3. Created /etc/httpd/conf.d/rpaf.conf
Code:
LoadModule rpaf_module modules/mod_rpaf-2.0.so
# Enable reverse proxy
RPAFenable On
# Set same hostname as Apache
RPAFsethostname On
# IP addresses proxying to Apache
RPAFproxy_ips 127.0.0.1 A-SPACE-SEPARATED-LIST-OF-SERVER-IP-ADDRESSES
# Header storing client IP address
RPAFheader X-Forwarded-For
4. Created /etc/nginx/vhost.template combining the three examples provided by Plesk as follows:
Code:
server {
listen 80;
server_name <domain.name> www.<domain.name>;
access_log /var/log/nginx/<domain.name>.access.log main;
# Main location
location / {
index index.php index.html index.htm;
proxy_pass http://<domain.name>:8080/;
include /etc/nginx/proxy.default;
}
# Static files location
# Uncomment to serve static files with Nginx
# This will result in these files not being accounted for by account bandwidth usage calcs
#location ~* ^.+\.(jpg|jpeg|gif|png|css|zip|tgz|gz|rar|bz2|doc|xls|exe|pdf|ppt|txt|tar|wav|bmp|rtf|js|ico|swf)$ {
# root /var/www/vhosts/<domain.name>/httpdocs;
# expires 30d;
#}
}
server {
listen 80;
server_name webmail.<domain.name>;
access_log /var/log/nginx/webmail.log main;
# Main webmail location
location / {
proxy_pass http://<domain.ip>:8080/;
include /etc/nginx/proxy.default;
}
}
server {
listen 80;
server_name lists.<domain.name>;
access_log /var/log/nginx/lists.log main;
# Main mailing list location
location / {
proxy_pass http://<domain.ip>:8080/;
include /etc/nginx/proxy.default;
}
}
5. Created /etc/nginx/proxy.default to enable global changes or domain specific overrides
Code:
# proxy.default
# Default Nginx proxy settings
proxy_redirect default;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
client_max_body_size 10m;
client_body_buffer_size 128k;
proxy_connect_timeout 90;
proxy_send_timeout 90;
proxy_read_timeout 90;
proxy_buffer_size 4k;
proxy_buffers 4 32k;
proxy_busy_buffers_size 64k;
proxy_temp_file_write_size 64k;
open_file_cache max=1024 inactive=86400s;
open_file_cache_valid 21600s;
open_file_cache_min_uses 1;
open_file_cache_errors on;
6. Renamed /etc/nginx/nginx.conf as /etc/nginx/nginx.conf.old
7. Created new /etc/nginx/nginx.conf based on the Plesk Guide as follows (main difference is that the "include /etc/nginx/conf.d/*.conf;" line is maintained from the yum version and user/group is changed to apache.
Code:
# Nginx Conf File
user apache apache;
worker_processes 1;
timer_resolution 100ms;
worker_rlimit_nofile 8192;
worker_priority -5;
error_log /var/log/nginx/nginx.error.log;
events {
worker_connections 1024;
use epoll;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] '
'"$request" $status $bytes_sent '
'"$http_referer" "$http_user_agent" '
'"$gzip_ratio"';
log_format download '$remote_addr - $remote_user [$time_local] '
'"$request" $status $bytes_sent '
'"$http_referer" "$http_user_agent" '
'"$http_range" "$sent_http_content_range"';
client_header_timeout 10m;
client_body_timeout 10m;
send_timeout 10m;
proxy_read_timeout 10m;
proxy_connect_timeout 30;
proxy_send_timeout 10m;
connection_pool_size 256;
client_header_buffer_size 1k;
large_client_header_buffers 4 2k;
request_pool_size 4k;
gzip on;
gzip_disable "MSIE [1-6]\.";
gzip_comp_level 3;
gzip_min_length 1100;
gzip_buffers 4 8k;
gzip_http_version 1.1;
gzip_proxied any;
gzip_types text/plain application/xml application/x-javascript text/css;
output_buffers 1 32k;
postpone_output 1460;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 5 20;
ignore_invalid_headers on;
resolver 127.0.0.1;
include /etc/nginx/conf.d/*.conf;
}
8. Replaced <domain.name> and <domain.ip> with real values in copies of vhost.template and saved as /etc/nginx/conf.d/domain.tld.conf for each existing domain.
9. Moved Apache port to 8080
Code:
$ /usr/local/psa/admin/sbin/websrvmng --set-http-port --port=8080
$ /usr/local/psa/admin/sbin/websrvmng --reconfigure-all
$ /usr/local/psa/admin/sbin/webmailmng --disable --name=horde
$ /usr/local/psa/admin/sbin/webmailmng --enable --name=horde
$ /usr/local/psa/admin/sbin/webmailmng --disable --name=atmail
$ /usr/local/psa/admin/sbin/webmailmng --enable --name=atmail
$ /usr/local/psa/admin/sbin/webmailmng --disable --name=atmailcom
$ /usr/local/psa/admin/sbin/webmailmng --enable --name=atmailcom
10. Restarted Apache (service httpd restart)
11. Started Nginx (service nginx start)
12. Ran "/sbin/chkconfig nginx on" so Nginx is loaded on reboot
We're good to go and examples of triggering the events to replace <domain.name> have already been given by Plesk. Should be trivial to query the db for domain ip to replace <domian.ip> or just hard code a default one in there instead.
Very straightforward now compared to when I first wanted to try it with Plesk 8.x. The main problem I had was with mod_praf as it took me a long time and frustration before finding out what was need for CentOS 5.
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