5 WHM Tweak Settings To Improve Performance Of Your Server And Make Website Faster

Change the configuration of CPanel / WHM Tweak settings to improve the performance of the server and make websites faster. Here are the five Tweak Setting of WHM panel which you should do it and see the next level performance of your server and website.

(Come back to this article every so often as we will update it as new tweaks become available depending on new WHM versions and upgrades.)

1. Disable 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.

A mailman is a tool that allows you to create mailing lists allowing you to send a large number of emails, nevertheless, this is not recommended as you might end up being blacklisted if you want to use this feature for advertisement purposes use services such as Mailchimp instead. You can get up to 2000 subscribers for free.

To disable Mailman From WHM Panel: Go to WHM > Server Configuration > Tweak Settings > Disable Mailman


2. Disable Catch All

Catch all can use up many resources and storage space, this feature should be disabled for spam security concerns. 
Catch-All handles all the emails that are not sent to an existing email account, by default they are stored in a default account that with time can get pretty big. To disable this feature set it to fail, it will reject the message and notify the remote SMTP server, this is in compliance with SMTP RFC 5321.

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To Diable Catch All, Go to WHM > Server Configuration > Tweak Settings > Change to :fail:


3. Disable Web Stats And MySQL Disk Stats

Chances are that you are using third-party analytics such as Google Analytics, in that case, disable all Stats programs from your server as they use resources and we are not monitoring such stats. Simply disable all (Awstats reverse DNS resolution, Analog stats, Awstats stats, and Webalizer stats)

To Disable Web and MySQL Disk Stats, Go to WHM > Server Configuration > Tweak Settings > Stats Programs

This is the same scenario for MySQL, and this option, in particular, will speed up your performance significantly, as it says in the description in WHM: Enabling this option may cause a significant drop in performance as MySQL may become unresponsive until data collection is complete". So simply disable "Include databases in disk usage calculations" and "Use INFORMATION_SCHEMA to acquire MySQL disk usage


4. Disable C-Panelsolr (cpanel-dovecot-solr)

This feature was introduced in CPanel version 64, and it indexes all the emails received across the WHM accounts in order to improve email search services on IMAP clients such as iOS devices, Microsoft® Outlook™, SquirrelMail, Horde, Roundcube, and Mozilla™ Thunderbird. Unfortunately, this new feature has reported high usage of Memory, even on those servers that do not offer mail services, so unless this is a crucial feature that you would like to have, we strongly recommend disabling it.

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To disable C-Panel-Solr, Go to WHM > Server Configuration > Service Manager


5. Conserve Memory

If you are constantly maxing out your RAM memory or have limited RAM, this could be a good idea, especially if your HD is an SSD, this option will use DISK and CPU resources in combination with RAM in order to save memory. This could be a good backup plan in case the memory starts to run low, but keep in mind it might slow down the performance as it uses CPU resources.

To Enable it, Go to WHM > Server Configuration > Tweak Settings > System

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