Asis Patra


Bengaluru, India

Tag: CentOS

How to setup passwordless SSH [2 Easy Steps]

by on November 17, 2022 at 11:36 am

SSH (Secure SHELL) is an open-source and most trusted network protocol that is used to log in to remote servers for the execution of commands and programs. In this article, we will see that how to set up password-less ssh on Linux using ssh keys to connect to remote Linux servers without entering a password. I have the following […]  Read More »

Category: Linux

Measure Network Performance with qperf

by on September 22, 2022 at 3:51 pm

qperf measures bandwidth and latency between two nodes. It can work over TCP/IP as well as the RDMA transports. How to install qperf? On CentOS/RHEL8, qperf is available from the EPEL repository. Install it like this: The Ubuntu/Debian repositories do not have qperf, so you’ll need to build it from source. Open the firewall on the Server On […]  Read More »

Category: Linux

Build column Command on Linux

by on September 18, 2022 at 7:15 pm

You might have bsd version column on your system, which might be an older version. You can build column using the following steps. Build column  Read More »

Category: Linux

How to Open Firewall Ports on RHEL8

by on August 1, 2022 at 2:25 pm

By default any application network port mostly will be blocked by the Operating System’s firewall. As a result you will face that applications from two system are not able to communicate to each other. The same works perfectly if you run them on the same system. You can open or add the network port in […]  Read More »

Category: Linux

git: Step by Step

by on October 7, 2022 at 6:34 pm

Set Global Git Username and Email Set Git Username and Email for a Single Repository Add and Commit files to a Git Repository Push the Changes to the Remote Repository  Read More »

Category: Linux

Useful Linux Commands

by on September 22, 2022 at 3:12 pm

Find who is logged on and What they are doing Kill tty Connections Find Common Elements Between Two Lists comm is great, but indeed it needs to work with sorted lists. Alternative with sort: reflector  Read More »

Category: Linux

Print csv in tabular form: csv2table

by on September 18, 2022 at 6:48 pm

There is a command named column which already helps you to print csv in tabular form. Here, we have used the same column command in csv2table script which automatically take care of the header and prints in tabular form with border. Example Note: Please make sure you are using latest column version. You can build […]  Read More »

Category: Linux