Arunlal A, Author at Crybit.com

More about the Python module subprocess and subprocess classes

March 22, 2017June 4, 2017 Arunlal ALeave a reply

We already have a brief description on Python module “subprocess.” It’s a commonly used Python module for SysAdmin jobs. This module should be used for accessing system commands. This is the simplest way for running Linux commands. Yeah, that’s what…

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exim

How/Command to find out the spam mailing script’s location – Exim mail server

March 22, 2017March 23, 2017 Arunlal A9 Comments

The Exim mail server has a lot of options/commands to find out the details of spammers easily and i details from the command line itself. Please refer to the blog post “Spam Check” to get more ideas about Exim spam trouble…

Python

The module subprocess in Python

March 22, 2017June 4, 2017 Arunlal ALeave a reply

Now we all are aware about “What is Python?” and “How to write a Hello World code?” No problem, if you do not know, please read this post >> Introduction to Python – Say Hello World! << before starting about…

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Administrative tools

Steps to install crond or crontab on CentOS/RHEL servers, Linux

March 16, 2017March 16, 2017 Arunlal A3 Comments

The daemon crond is pre-installed in almost all Linux/Unix servers. In some rare situations, we need to install it manually on our servers. Here I’m going to explain the steps to install cron daemon on CentOS and RHEL servers. We…

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cPanel

How to disable directory indexes server wide – cPanel/WHM

March 5, 2017March 6, 2017 Arunlal A7 Comments

Is there a simple way to disable directory index? Sure!! Let us start with “What is “directory index?” This is simply a feature that allows to view all files in a directory via a directory index when there is no index…

cPanel

How to check cpanel license details?

March 5, 2017August 20, 2017 Arunlal A3 Comments

WHM/cPanel is one of the most commonly using web-hosting control panel. It’s a paid one. The installation of cPanel in a server is quite simple. After installing cPanel, you’ll only get a 15 days trial version of it. You need to…

cPanel

[Solved] A DNS entry for “xxx.com” already exists. You must remove this DNS entry from all servers in the DNS cluster to proceed.

February 28, 2017March 2, 2017 Arunlal A13 Comments

I got this error while trying to add a domain as an Addon on the primary cPanel account. The domain is already pointing into another servers which also using the same DNS cluster and that was actually creating the problem.…

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