A newly setup cPanel system may have a message such as the following show the first time that you login to WHM. IMPORTANT: Do not ignore this email. The hostname (hostname.server.com) resolves to . It should resolve to xx.xx.xx.xx. Please be sure to correct /etc/hosts as well as the ‘A’ entry in zone file for… Continue reading “IMPORTANT: do not ignore this email: The hostname resolves to . It should resolve to X.X.X.X”
Tag: cPanel
Error 550 – “The recipient cannot be verified” – cPanel
On servers running cPanel, you may find that mail sent to valid users it bounced back by your mail server. The bounce back messages will be similar to the following. PERM_FAILURE: SMTP Error (state 9): 550-“The recipient cannot be verified. Please check all recipients of this550 message to verify they are valid. If this is… Continue reading Error 550 – “The recipient cannot be verified” – cPanel
Securing the TMP Partition and Tracking Hacks
Are your temp partitions putting out behind your back? Anyone who’s ever administered a Linux server would know the risk of leaving the /tmp directory unsecured, moreso on a webserver that is shared among multiple websites. The tmp directory is world-writeable and used by a majority of services on a machine — including the storage… Continue reading Securing the TMP Partition and Tracking Hacks
Installing IonCube loader with Zend Optimizer – cPanel
This is a common request we get for Ioncube to be installed. It’s generally not an issue, but when you factor in other optimization plugins like Zend and eAccelerator, a common misconception is that the three don’t get along. It’s very easy to install Ioncube into a PHP installation that already has Zend and eAccelerator.… Continue reading Installing IonCube loader with Zend Optimizer – cPanel
How to Upgrade PHP – cPanel
Whether you compiled manually or with EasyApache, running a PHP upgrade from a previous version is super easy but also one of the most common questions I get. There are 3 likely assumptions about your current environment (specific to Linux servers, sorry Windows users): 1. You are running a cPanel server and have PHP compiled… Continue reading How to Upgrade PHP – cPanel
Fixing Common Perl Issues – cPanel
Sometimes you’ll notice that a certain function of cPanel or WHM was working fine, now all of a sudden you’re getting results that you’ve never seen before. Believe it or not, many problems with cPanel functionality related to processes running off of scripts is because of a perl corruption. To resolve this, usually the first… Continue reading Fixing Common Perl Issues – cPanel
Downgrading MySQL to 4.x – cPanel
If you’ve upgraded MySQL via WebHost manager, the downgrade process is slightly more complex than the upgrade. This tutorial mainly covers a downgrade from 4.1 to 4.0, but also applies to downgrading from 5.x to 4.x. *Back up all databases before proceeding, as all existing databases will be deleted! 1. Uninstall existing MySQL packages: rpm… Continue reading Downgrading MySQL to 4.x – cPanel
Disabling SMTP Tweak – cPanel
The SMTP tweak will prevent users from bypassing the mail server to send mail (this is a common practice used by spammers). It will only allow the MTA (mail transport agent), mailman, and root to connect to remote SMTP servers. In order words, users will need to use ‘localhost’ as their SMTP server for local… Continue reading Disabling SMTP Tweak – cPanel
Upgrading phpMyAdmin – cPanel
The phpMyAdmin version is usually automatically upgraded when you run a cPanel update to a newer version. However, if you’re not quite ready to upgrade cPanel, you easily install a newer version of phpMyAdmin. Please be aware that future cPanel updates will overwrite your manual installation. You will need to go to the phpMyAdmin download… Continue reading Upgrading phpMyAdmin – cPanel
Installing PostgreSQL – cPanel
Run the install script from command line /scripts/installpostgres Now in WHM under SQL Services locate Postgres Config and do an Install Config. You can also set the root password from here, but this password should only be alphanumeric. PostgreSQL is installed now, but PHP is not compiled for it, so you’ll need to recompile PHP/Apache… Continue reading Installing PostgreSQL – cPanel