Friday, September 9, 2011

Opening ports in the firewall for the Mail Server

January 10, 2010 by  
Filed under General

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There are standard ports that are used to access most services. For example, accessing a website generally uses port 80 for normal (HTTP) web pages and port 443 for secure (HTTPS) pages. Smtp Smtp generally uses port 25 for connections although there are recommendations for port 587 (see the official documentation for details). Pop and [...]

Installing APF Firewall in cPanel server

October 9, 2009 by  
Filed under cPanel

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The whole process of securing a Server or network is quite extensive. I’m discussing just one major aspect of Security here – Firewalls. Specifically my topic is about APF firewall. I’m dividing this article into 2 sections :- The first section is for amateurs. The second section is strictly for experts, at least for those [...]

DoS Protection via APF, BFD, DDOS and RootKit

October 8, 2009 by  
Filed under cPanel, Direct Admin, General, HyperVM, Kloxo, Plesk, Webmin

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Being a web host, your servers are constantly being attacked by hackers by denial-of-service (DoS) and other brute force attacks. There is no foolproof method to stop 100% of all attacks, but there are ways to protect your servers by applying firewall rules, and detecting and banning attacking IPs. This article makes use of the [...]

Common features of cPanel, Plesk and DotNet Panel web hosting

September 29, 2009 by  
Filed under cPanel, DotNet Panel, Plesk


cPanel, Plesk and DotNet Panel are the control panels offered by most of the professional web hosting service providers. These control panels provided by the hosting firms, help users to manage different tasks of web hosting. These panels simplifies the tasks for the support staff too, as clients are able to carry out majority of [...]

Installing Webmin in Ubuntu, LinuxMint

August 27, 2009 by  
Filed under Webmin

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Installing Webmin in debians (e.g Ubuntu, LinuxMint) is very easy. If you have basic familiarity with any of the variant, you can install webmin without issues following the instructions given here. Installation using .DEB file: Login to your server via SSH Download the .deb file from download page of Webmin’s site. The file looks like [...]

Configuring your Firewall for Webmin

August 27, 2009 by  
Filed under Webmin


Many operating systems block access to port 10000 by default (this is the default port for webmin interface), as they have a firewall activated as part of the installation process. This may prevent you from logging into http://yourserver:10000/ from another system on your network or over the Internet. The simplest way to open up port [...]

Enabling passive ftp in Pure-FTPd

August 2, 2009 by  
Filed under cPanel

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For users that are behind a firewall it might be required that you enable passive ftp in your ftp server and client. While enabling passive ftp in your ftp client is simple, doing so in your ftp server configuration files might be a bit tricky if you don’t know what you are doing. This tutorial [...]