Posted on by Vishwajit Kale

Introduction and basic usages of iptables under Unix/Linux

* What is iptables in Linux ?  Iptables is a rule based firewall system and is normally pre-installed on a Unix operating system which is controlling the incoming and outgoing packets. Basic structure of iptables The structure for the iptables is like, Tables which has chains and the chains which contains rules. Tables —> Chains […]

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Posted on by Vishwajit Kale

How to install and configure csf on CentOS

Install and configure csf on CentOS the following steps as root user 1: Downloading csf package. rm -fv csf.tgz wget http://www.configserver.com/free/csf.tgz 2: Remove already installed firewall settings Execute the following command to remove already installed firewall like APF (Advanced Policy Firewall) or BFD (Brute Force Detection) from server. [root@server #] sh /tmp/csf/remove_apf_bfd.sh 3: Installation [root@server #] […]

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Posted on by Vishwajit Kale

How to enable SPF and DKIM for already created cPanel accounts?

Enable SPF and DKIM for already created cPanel accounts cPanel script to enable SPF via commandline: Syntax # /usr/local/cpanel/bin/spf_installer $username Where, $username is the cPanel user name. cPanel script to enable DKIM via commandline: Syntax # /usr/local/cpanel/bin/dkim_keys_install $username Replace $username with the actual cPanel username. The above commands will help you to enable email authentications […]

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