What is FQDN (Fully Qualified Domain Name) with Examples?
We generally see the term FQDN or Fully Qualified Domain Name and generally though that is is like a secret magic which provides some information about...
How To Solve “Dns Server not responding”
DNS is the one of the most importnt protocol for internet and network usage. If DNS woluldn’t be exist you will have to type https://45.79.133.118 to...
How To Install,Start, Stop, Restart OpenSSH In Ubuntu, Debian, Kali, Mint?
Ubuntu is popular Linux distributions used by millions. In order to access Ubuntu systems remotely we use ssh protocol. So in order to access and manage...
Best Linux Hex Editors
Linux provides a lot of command line tools for easy and practical use. Hex editor packages are some of them. In this tutorial we will...
Best Free Hex Editors For Windows
There are different type of editors used to change given files context. Most of the computer users aware of text editors. But there are other...
What is IP Address (Internet Protocol Address)?
In computer networks we need to give each host or system a unique number and/or name. This is the only way to make communication possible....
Debian Ubuntu “netstat: command not found” Error Solution and Netstat Installation
Ubuntu is most used Linux distributions. Canonical provides enterprise support for Ubuntu desktops and servers. netstat is easy to use tool for network operations. In this...
How To Check and List Listening Ports with Netstat In Linux
netstat is very useful tool which provides a lot of information about the network of operating system. netstat command can list ip addreass, route, port, connections etc....
How To Read RSA, X509, PKCS12 Certificates with OpenSSL?
OpenSSL provides read different type of certificate and encoding formats. OpenSSL supports certificate formats like RSA, X509, PCKS12 etc. We will look how to read...
How To Create Self Signed Root Certificate with OpenSSL
OpenSSL provides cryptographic libraries and features. We can use OpenSSL from reading DER files to generate random numbers. But one of the most used feature...
