APF installation error on VPS : unable to load iptables module (ip_tables), aborting.

While installing APF on your VPS you get the following error : # apf -r apf(28442): {glob} status log not found, created apf(28463): {glob} flushing & zeroing chain policies apf(28463): {glob} firewall offline apf(28500): {glob} activating firewall apf(28551): {glob} unable to load iptables module (ip_tables), aborting. apf(28500): {glob} firewall initalized apf(28500): {glob} !!DEVELOPMENT MODE ENABLED!! […]

Mailbox unavailable or not local error messages

If you receive this error when adding a domain: <coder>Unable to send notification: mail() failed: SMTP server response: 550 Requested action not taken: mailbox unavailable or not local then you need to add a valid mailbox to your Plesk admin setup. To resolve this issue log into Plesk and click on: Server Edit (under personal […]

When I logging into the Plesk CP and creating a user or domain, this error message appears right after creation: “Internal Plesk error occurred: Unable to send notification: mail() failed:”

APPLIES TO: * Plesk 7.5.4 Reloaded * Plesk 8.x for Linux/Unix SYMPTOMS Additionally the following errors may be shown: Failed to connect to mailserver SMTP server response: 550 Empty error message from utility. CAUSE This error means that Plesk failed to send notification for some reasons. RESOLUTION First of all make sure that Plesk SMTP […]

PhpMyAdmin :: SQLite failed to open/create session database

This is usually a bug in the PhpMyAdmin configuration, whenever you receive the following error when accessing PhpMyAdmin either from WHM or cPanel, follow the steps given below for a fix Warning: session_write_close() [function.session-write-close]: open(/var/cpanel/userhomes/cpanelphpmyadmin/sessions/sess_uPSQAGVEZx2uuePd7SpsgTHJ6X7, O_RDWR) failed: No such file or directory (2) in /usr/local/cpanel/base/3rdparty/phpMyAdmin/navigation.php on line 85 Manually edit /usr/local/cpanel/3rdparty/etc/phpmyadmin/php.ini file as follow: 1)Login […]

How to access Plesk database

APPLIES TO: Plesk for Windows Answer Plesk Database can be accessed by following steps below depending on the database provider are configured in current Plesk installation. For MSSQL provider: Database can be accessed using the following CLI command: C:\Program Files\Microsoft SQL Server\80\Tools\Binn\osql –E Or Microsoft SQL Server Management Studio Express utility can be used. For […]

Named rndc.key error when starting

When trying to restart named process after making modifications may end up in a corrupt rndc.key key and the error will show like this: Sep 12 03:30:54 server named[23683]: /etc/rndc.key:1: configuring key ‘rndc-key’: bad base64 encoding Sep 12 03:30:54 server named[23683]: loading configuration: bad base64 encoding Sep 12 03:30:54 server named[23683]: exiting (due to fatal […]

Writing Linux firewall rules w/ IPTables

The Linux kernel, since version 2.0, has included the capabilities to act as a firewall. In those days, the kernel module was called ipfwadm and was very simple. With the 2.2 kernel, the firewall module became called ipchains and had greater capabilities than its predecessor. Today, we have IPTables, the firewall module in the kernel […]