Yep, it will! If you have a custom iptable rule defined in a CSF installed server, it may works, but restarting the CSF (csf -r) will remove the rule. CSF is one of the best free iptables managing tool for Linux…
Tag: Firewall
Allow and Deny IP addresses on server using APF
It’s a useful option to protect the server from unwanted/unauthorized connections. By using basic iptables we can allow/deny IPs, but it’s not such simple. The applications like CSF or APF will help us to do the same simply using simple…
What is the default configuration file for IPTables and where it is located – Linux
It’s quite simple and but very useful thing. I have already posted the basics of IPTables in Linux, you may check this for more details >> IPTables basics << The iptables rules are saved in the file “/etc/sysconfig/iptables” under a…
Login Failures and Port Scanning notices – Email alert setup for CSF
A wide range of settings are available in CSF configuration file. We have already discussed a lot of topics related with CSF. Here I am discussing about email alert setup for unauthorized Login Failures and Port Scanning. Click here for…
How to check whether the IP address is blocked in server firewall – WHM/cPanel server with CSF
We have already discussed about the way to check the blacklist in CSF via command line. In a WHM/cPanel server we have an option to check the IP blacklist via WHM control panel. You can refer this link to find…
How/Steps to install fail2ban on CentOS 5.x, 6.x Rhel 5.x, 6.x – Protect SSH/FTP using fail2ban
Fail2ban, it is a security based application for your Unix based server. The fail2ban service is commonly used to protect your SSH and FTP from unauthorized connection. Here I am explaining the installation and basic configurations steps of fail2ban service…