How to Install Fail2ban on Debian Squeeze

Fail2ban is an important software for system administrator. It scans log files (e.g. /var/log/auth.log) and bans IPs that show malicious signs, something like too many password failures and looking for exploits. To install fail2ban, execute this command: Open the configuration file to activate some rules: Find following line to set email destination for notification: Find…

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How to Upgrade EHCP 0.30.4 to 0.30.6

Download version 0.30.6 from this link. # cd /root # wget http://sourceforge.net/projects/ehcp/files/ehcp_yeni.tgz/download Extract the file Backup current EHCP # copy -R /var/www/new/ehcp /root/backup_ehcp Copy new EHCP # copy -R /root/ehcp /var/www/new/ Copy config.php from backup # cp /root/backup_ehcp/config.php /var/www/new/ehcp Open browser and go to http://your_ip and login to EHCP. If you have logged in already,…

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How to Fix Suhosin Error ‘ALERT – configured GET variable value length limit exceeded…’ on Debian Squeeze

PHP Suhosin is an open source patch for PHP5 to harden the servers security. I found this Suhosin looping error message when checked on /var/log/user.log Feb 25 07:28:39 rastavarian suhosin[444]: ALERT – configured GET variable value length limit exceeded – dropped variable ‘cookie’ (attacker ‘202.42.246.191’, file ‘/var/www/wp-admin/admin-ajax.php’) Feb 25 07:28:40 rastavarian suhosin[442]: ALERT – configured…

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How to Install Spamassasin, ClamAV, Amavis on Ubuntu / Debian Squeeze

The purpose of this installation is to filter spam email and virus on Postfix mail agent. Here I already installed Postfix in the server, because it is included in EHCP installation. 1. Install the packages 2. Install the optional packages for better spam detection libmail-spf-query-perl package is not available in Debian, therefore I change to…

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