Internet

Private, Public and Illegal IP Addresses

What is a Public IP address Public IP Addresses (also known as Static IP Addresses) are IP addresses that are visible to the public.Because these ip addresses are public, they allow other people to know about and access your computer, like a Web server.In some cases, you do not want people to access your computer or you want to restrict [...]


OS & Networking

Split DNS – Explained

In one of my previous post about setting up Zimbra mail server application, I’ve mentioned about configuring a Split DNS (local DNS) server using bind9 on server itself. In this article I’ll explain why is it important to a mail server and how it works. Before we go into detail, you should have a good understanding [...]





Android

How Linux is Built [Video Log]

Linux is a UNIX based operating system assembled under the model of free and open source software (FOSS) development and distribution. I’m a die-hard fan for the Linux distribution, as it inspired me a lot than comparing to windows. Major reason is that, I love the CLI environment than the GUI which took me to learn about Linux. [...]



Freewares

Keep SSH Session Alive After Disconnecting

When I use SSH to remotely manage my Ubuntu servers specifically when installing applications and editing config files sometimes I get disconnected due to internet connectivity issues. Most of the time I use Hamachi VPN to connect to the servers. If it get disconnected in middle of setting up something, there is no way to get the old [...]




Mobile

Everything You Need to Know About the iPhone 7


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A comeback with a new look! [GeekLK Exclusive]


Security

pfSense – configuring Windows Active directory authentication


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An unexpected surprise for GeekLK by Daily Mirror


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