How to add swap to a KVM VPS or Dedicated Server CentOS 6

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Swap is beneficial, because it allows inactive memory blocks to be written to disk, freeing up real memory for stuff like file system caching. Swap also (to some extent) protects you...

How to create a resellers account in WHM

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To create a resellers account in WHM or to transform an existing account into a reseller account with the ability to create its own cPanel accounts, please do the following: (Please login...

How to Convert/Migrate OpenVZ VPS to Xen/KVM

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When moving a KVM image to another server, it's a pretty simple process. If you're using SolusVM or Virtualizor, it makes it even easier. However, if you have a VM node...

How to Configure a new cPanel Installation

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So you just received your VPS/server and just installed cPanel on it. You go to login at the normal WHM URL and are presented with a license agreement as well as...

How to Enable DKIM and SPF on all existing cPanel Accounts

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To add domainkeys and SPF records, you can do the following. Please note that on CPanel servers most of the work is done using cpanel during account creation. However, there are...

Force Non Legacy Backups to Start now (WHM/cPanel)

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So you've configured your system to generate backups on all of your cPanel accounts using the newer method (not the legacy backup method) of WHM but you want the backups to...

How to delete/empty your email queue (multiple techniques)

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Very frustrating. So you find out one of your WordPress sites was exploited and sent out thousands of emails from your VPS or server. You found the account or plugin/theme that...

Frequently used ports and their corresponding uses

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Here's a little cheat sheet on the most commonly used ports on a cPanel server. This helps with situations such as problems sending email through port 25 and 26 because your...

How to change default SSH port for a VPS or Dedicated server.

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Changing the default SSH port to your VPS or server is recommended for security reasons, regardless of your operating system or control panel (cPanel/WHM, Plesk, etc). The following tutorial is written...

How to resolve Fatal error: Allowed memory size of XXX bytes exhausted error

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You may have visited one of your WordPress websites, or another script on your server and received this error upon landing on one of the pages:Fatal error: Allowed memory size of...