POFTUT – Page 100 – Linux, Windows, Security, Programming, Network Tutorials



How To Use GPG To Create, List Keys and Sign Files?

GnuPG or GPG is Gnu version of Open PG standard implementation. It is very popular especially at personal use for mails etc. Here I will look basic usage of gpg2 in Linux command line interface. gpg2 is the second major version of gpg. Create/Generate Private GPG Keys Here we will...


RabbitMQ Tutorial

RABBITMQ is a message broker which works as a common channel for different entities. The main purpose of RABBITMQ is clustering and high availability. Message producer entities put message to the RABBITMQ and then the consumers get it according to work plan. If some of the producers or consumers fail the remainings still works....


How To Change OpenSSH SSH Server Port Number In Linux?

Remote access is the main method while managing Linux systems. Remote access must be secured accordingly. OpenSSH suite which implements Ssh provides this security with server and client side. OpenSSH also provides auxiliary tools to make copying or identity management easily and securely. OpenSSH servers run by default TCP port...


How To Check Password Strength In Linux With Cracklib?

Password security is important subject in IT. We call it password but actually it is a key to enter systems. Making authentication password-less by using key based authentication is more secure but it is not always possible. So for the password based authentication password strength is important. How Can We...


How To Set, Get and Change Bash Environment Variable?

Bash shell is used for a lot of things in Linux systems. Most of the applications run with bash. Bash is a shell but provides an environment that can be used to programming. Variables are core of the programming. Bash provides variables too. There are default variables as well as...


How To Get File System Disk Usage In Linux?

When administrating Linux systems we can found us tracking disk usage. Linux uses different partitions to store data. There are some temp files located in /tmp or different  paths. Some applications are installed into the /opt path. So managing paths and disk usage may become hard in Linux. There are some GUI applications like...

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