Lazy System Admin

One line commands – one-liner

May 8, 2018 Suhesh KS 0

One line commands – one-liner One line commands or one-liner is a group of commands executed in one line to accomplish some tasks. One-liners will be time saver for the system admins in his day to day life.  In order to understand and generate one-liners […]

Alternate windows software in linux

Alternative windows software in Linux Operating system

November 19, 2017 Suhesh KS 0

Alternative windows software in Linux Operating system When migrating from Windows operating system to linux will need the question, Where can I get the application which is used in Windows? You don’t need to worry about it most of the software’s alternatives are available in linux. […]

reverse-dns

rDNS – Reverse DNS

September 19, 2017 Suhesh KS 0

Reverse DNS (rDNS) is a method of resolving an IP address into a domain name, just as the domain name system (DNS) resolves domain names into associated IP addresses. One of the applications of reverse DNS is as a spam filter. Reverse DNS is separate […]

disk full

Resolve disk full in linux server

April 9, 2017 Suhesh KS 0

Disk full is one of the issue faced in linux servers and here I am discussing some tips for resolving disk full issue. Disk full will cause failure of writing files by user and the applications, which results in service outage. Services like mysql, apache were […]

firewall

How to remove IP block from Firewall ?

October 7, 2016 Suhesh KS 0

In computing, a firewall is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules. There are so many reasons the ISP IP may be blocked in the server firewall. Following are the steps to troubleshoot […]

Oneliner

Linux One Liner – netstat

September 21, 2016 Suhesh KS 0

One liner is individual Linux commands can be combined in the command line, to accomplish tasks that otherwise would require shell scripts to be written. The following one liner is commonly required for us to find the IP, which is abusing to the server, means […]

source package

How to Install Software from Source Code on Linux

September 10, 2016 Suhesh KS 0

While yum, apt-get, rpm are very handy to install a package that is already compiled, you still might encounter some situations where you have to install a software from source code. This article explains how to compile and install software from source code. If you’ve […]

Bash shell

Linux Shell Scripting – Introduction

September 4, 2016 Suhesh KS 0

A shell script is a computer program designed to be run by the Unix shell, a command-line interpreter. Shell is a user program or it’s environment provided for user interaction. Shell is an command language interpreter that executes commands read from the standard input device (keyboard) or from […]

crontab-syntax

Crontab tips and tricks

June 30, 2016 Suhesh KS 0

In order to automate the processes, we need to execute some commands or tasks periodically like the backups taken, downloading mails to Billing or ticketing system etc. We can accomplish these tasks by adding a cronjob. Cron is the name of program that enables unix […]

Linux Distributions

June 9, 2016 Suhesh KS 0

Unix comes in many flavors usually called distributions. A Linux distribution (often called a distro for short) is an operating system made from a software collection, which is based upon the Linux kernel and, often, a package management system. Software is maintained ( patched ) […]