Enable SMTP Authentication on cpanel

POP before SMTP authentication allows you to send messages via a POP mail server for 30 minutes before you will need to re-authenticate a session through SMTP.

POP before SMTP authentication is disabled in WHM by default. To enable this option, navigate to WHM’s Service Manager (Home >> Service Configuration >> Service Manager) and select the Antirelayd checkbox.

While POP before SMTP authentication is secure but if the customer will be able to check the email from an office, the current public IP belongs to that office IP has been added to email white list and any one from that network can be send email using this smtp server without any authentication for 30 minutes.

To disable the feature “Authenticate POP before SMTP” in WHM/Cpanel server by simply executing the following command.

To Enabling SMTP authentication

 /usr/local/cpanel/bin/tailwatchd --disable=Cpanel::TailWatch::Antirelayd

Unable to establish a PHP session – PHPMyAdmin error

PHPMyAdmin error

Do you ever come across the following error when you access PHPMyAdmin from cPanel.
Access Denied Unable to establish a PHP session. If you believe that this is in error or inadvertent, contact your system administrator and ask them to review your server settings.

Normally, you will get this error when the permission or ownership of the tmp folder for this user is wrong. That is, make sure the ownership of /home/$username/tmp folder has ownership set to $user and permission as 755. If it is not, you will face the same problem.
Solution:

1. SSH into the server as root.

2. Check the permission and ownership of /home/$user/tmp folder. Set ownership as $user.

# chown $user. /home/$user/tmp

3. Set permission of the tmp folder to 755.

#chmod 755 /home/$user/tmp

That’s it!!!

$user can be replaced with your respective username.