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Tag: iptables

iptables in Linux
Firewall

What is iptables in Linux? Introduction to iptables

November 23, 2018November 25, 2018 Arunlal A22 Comments

What is iptables in Linux? What is iptables in Linux? We can call, it’s the basics of Firewall for Linux. Iptables is a rule based firewall system and it is normally pre-installed on a Unix operating system which is controlling the…

Firewall

Managing Firewalld on CentOS/RHEL 7 – start/stop/status-check

July 5, 2018October 4, 2018 Arunlal A2 Comments

Hey, I’m new here and unable to manage my Firewall daemon on my server/VPS. The OS is reloaded with latest CentOS 7. Yeah, it’s a little bit new, managing services on CentOS/RHEL 7 servers. The daemon for iptables is firewalld…

Security

Server Is Compromised: What Do I Do?

September 21, 2017July 18, 2018 Arunlal ALeave a reply

Server Is Compromised: What Do I Do? As a systems administrator, it’s your job to keep tabs on your server. To address the first point, keeping up with antivirus definitions updates and making sure you have the latest service packs…

Firewall

Block whole countries accessing server/website except you wants – CSF

November 8, 2014November 9, 2014 Arunlal A1 Comment

Hey guys! We already discussed one of the amazing option in CSF for blocking/allowing countries. The usage of “CC_ALLOW” and “CC_DENY” to allow and deny countries with its country code. You can refer this from the link added below: How…

Firewall

APF installation steps for Linux server – Command-line way

May 31, 2014June 1, 2014 Arunlal A1 Comment

APF is the abbreviation of Advanced Policy Firewall. It is a policy based firewall system designed to configure firewall (IPTables rules) simply and user friendly. Configuring iptables is slightly hard without the help of an application like APF or CSF.…

Firewall Linux

What is the default configuration file for IPTables and where it is located – Linux

May 10, 2014May 10, 2014 Arunlal ALeave a reply

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…

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