Run command ‘free -m’ note value under ‘-/+ buffers/cache’ and find out how much memory your vps is currently using ? After that please proceed the following steps:
1) Stopping SpamAssassin:
This program isn’t overly important to the stopping of spam. To turn it off do the following:
Go to WHM » Server Configuration » Tweak Settings » Disable Spamd
And:
Go to WHM » Service Manager » Disable Spamd
2) Stopping Mailman:
If you or none of your customers aren’t running any mail listings through cPanel, it would be a good idea to disable Mailman.
Go to WHM » Server Configuration » Tweak Settings » Disable Mailman
3) Stop ClamAV:
Never use ClamAV on a VPS server.You can use maldet instead of ClamAV.You can disable ClamAV from:
Go to WHM » Home » cPanel » Manage Plugins » Uncheck clamavconnector and save
4) Never Use Tomcat on a VPS:
Never run TomCat on a VPS because of it’s high RAM needs.
5) Disable CatchAll :
If you receive incoming spam mail to a large extend then catchall setup will be reason.Try to catch-all from :
Go to WHM » Server Configuration » Tweak Settings » Change to :fail:
6) Tweak Apache:
Apache need to tweaked compulsory to reduce memory usage, do the following:
WHM » Home » Service Configuration » Apache Configuration » Global Configuration
Change the following settings:
MinSpareServers 2 MaxSpareServers 5 StartServers 3 Keep-Alive Off
Save the values and rebuild apache.
7) Optimize MySQL.
Please replace your existing my.cnf to the following:
[mysqld] local-infile=0 max_allowed_packet = 1M max_connections = 300 max_user_connections = 35 wait_timeout=40 connect_timeout=10 [mysqldump] quick max_allowed_packet = 16M
8)InnoDB
InnoDB requires more RAM and it in not good for a VPS server. Better prefer MyISAM tables.So i suggest you to convert InnoDB tables to MyISAM.
9) Optimize PHP
Reduce PHP memory limit from php.ini.
10) Backup Type :
Never use compressed backup type.Instead of compress backup use incremental backup.You can configure it from WHM » Home » Backup » Backup Configuration
11) Disable Unwanted Services.
pcscd portmap netfs nfslock rpcidmapd yum-updatesd avahi-daemon autofs acpid atd gpm haldaemon hidd irqbalance auditd xfs bluetooth anacron pcmcia sgi_fam rhnsd hald hcid or sdpd hpiod or hpssd.py dbus-daemon cupsd
All that should reduce your memory usage by a large amount.
Please reboot your VPS for one time.After server is up run ‘free -m’ command and feel the difference in memory usage.
Hi,
Thank you for this! My server was using almost 6 GB of ram (VPS) running some of those features in cPanel. I followed through step 7, rebooted my VPS and perfect. Only using about 400 MB now.
Good work! Cheers
Very nice and Complete info.
You saved my 25-30% Resources. I was about to upgrade RAM in my vps but you saved me.
Thank you so much @Vipin Prabhakaran, for sharing this information. I don’t have knowledge on shell commands, but I have done the same in cPanel and reduced the memory usage from 100% to 62%.
The best ways to reduce memory consumption are to conserve certain applications and disable them. Thanks for the informative post.
Hey there, first of all thank you so much for this post and honestly I was searching for the same information from last few days. Keep posting and keep sharing.