You can change Apache web server port to use a lightweight high-performance web server, such as nginx, as a front-end web server, and move Apache web server to back-end.

To change Apache web server port, use the websrvmng utility with the following options:

1.     –set-http-port – set a custom http port;
2.     –get-http-port – get a custom http port;
3.     –set-https-port – set a custom https port;
4.     –get-https-port – get a custom https port.

To change Apache web server http port to 8888, issue the following command:

# /usr/local/psa/admin/sbin/websrvmng --set-http-port --port=8888

# /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

You can  add vhost for a domain in nginx as follows in plesk,

# cat /etc/nginx/vhost.template

server {

listen 80;

server_name <domain.name> www.<domain.name>;

access_log /var/log/nginx/<domain.name>.access.log main;

#Main location

location / {

proxy_pass http://<domain.name>:8080/;

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=600s;

open_file_cache_valid 2000s;

open_file_cache_min_uses 1;

open_file_cache_errors on;

}

# Static files location

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;

}

}