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cPanel
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- Mailing Lists
- Default Address
- Autoresponders
- Forwarders
- Email Accounts
- Spam Filters
- Track Delivery
- Global Email Filters
- Email Filters
- Address Importer
- Encryption
- Email Disk Usage
- Calendar Delegation
- BoxTrapper
- Configure Greylisting
- Email Routing
- Filter Incoming Emails by Domain
- Email Deliverability
- Authentication (SPF and DKIM)
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WHM
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- SSH Password Authorization Tweak
- Apache mod_userdir Tweak
- SMTP Restrictions
- Compiler Access
- Configure Security Policies
- Password Strength Configuration
- cPHulk Brute Force Protection
- Security Questions
- Manage External Authentications
- Two-Factor Authentication
- ModSecurity™ Vendors
- ModSecurity Configuration
- Manage root’s SSH Keys
- Manage Wheel Group Users
- Host Access Control
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- Terminate Accounts
- Quota Modification
- Modify an Account
- Change Site’s IP Address
- Create a New Account
- Manage Account Suspension
- Upgrade/Downgrade an Account
- Limit Bandwidth Usage
- Force Password Change
- Email All Users
- Reset Account Bandwidth Limit
- Password Modification
- Skeleton Directory
- Rearrange an Account
- Raw Apache Log Download
- Modify/Upgrade Multiple Accounts
- Web Template Editor
- Unsuspend Bandwidth Exceeders
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- Articles coming soon
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- Articles coming soon
Tweak Settings
Log in to your whm>> Server Configuration>>Tweak Settings
Each category has a plethora of subtopics you can explore. To find Tweak Settings, login to your WHM and head to Home => Server Configuration => Tweak Settings.
Common Tweaks for Performance
Turn off Mailman
Used for managing mailing lists, but if you don’t utilize mailing lists in Cpanel, disabling it would reduce CPU usage
Set email delivery times to retry every 120 seconds
The default is 60 seconds, again, to reduce CPU usage
Set Initial default/catch-all for Accounts Behavior to Fail
This is to mitigate CPU usage as well as received SPAM. If emails are sent to inboxes that don’t exist, this option will reject those messages
Off Turn Boxtrapper, Spam Trap, and SpamAssassin
Another setting to reduce CPU usage, though if having spam issues in your inbox could be later re-enabled.
Turn Off Analog Stats and Webalizer Stats
Statistic tracking on the server will add to CPU usage. Utilizing an outside service such as Google Analytics will give better tracking information without the server overhead.
Turn On Conserve Memory
This setting allows you to specify whether to conserve memory (RAM) at the expense of more CPU usage and disk I/O. For low memory systems (2-4GB), this would be recommended to be enabled. This setting defaults to Off.
Number of pigz Processes
This should be set to the number of CPU cores you have on the system. The default is set to 1.
All of these settings will help you to maximize your CPU usage and improve overall performance.
If you should have any questions or would like assistance, please contact us through Live Chat or by submitting a ticket with our Technical Support team.
The major categories in Tweak Settings are:
- Compression
- cPAddons Site Software
- Development
- Display
- Domains
- Logging
- Notifications
- PHP
- Redirection
- SQL
- Security
- Software
- Stats Programs
- Stats and Logs
- Status
- Support
- System