Satish Kumar

LATEST ARTICLES ( 282 )

• Using Bash to Monitor Battery Life and Optimize It

  In this article, we will learn about the TLP Linux tool. TLP is a command-line tool; it is used for power management and will optimize the battery life. Read more

  Posted on 09 March 2021

• Creating a Simple NAT and DMZ Firewall Using Bash Script

  In this article, we will create a simple NAT firewall with DMZ using iptables. Prerequisites Besides having a Terminal open, you need to ensure... Read more

  Posted on 08 March 2021

• Blocking IP Addresses from Failed SSH Attempts in Linux Operating System

  In this article, we will learn about finding the failed SSH attempts and blocking those IP addresses. To find failed attempts, we will use grep as well... Read more

  Posted on 07 March 2021

• Making a Simple IRC Chat Bot Logger Using Bash Script

  In this article, we will make a simple bot logger. This script will log a few channels as well as handle the pings. Prerequisites Besides having a Terminal open... Read more

  Posted on 06 March 2021

• Creating a Lame Utility HTTP Server in Linux Operating System

  In this article, we will discuss the cURL tool in Linux. The cURL tool is used for transferring the data from or to a server. It supports many protocols, and... Read more

  Posted on 05 March 2021

• Encrypting/decrypting Files from a Script in Linux

  In this article, we are going to learn about OpenSSL. In this section, we are going encrypt and decrypt messages and files using OpenSSL. Read more

  Posted on 04 March 2021

• Finding Binary Dependencies in Linux Operating System

  In this article, we are going to check the executable. We will find out which string is present in it by using the string command. Read more

  Posted on 03 March 2021

• Creating Syslog Entries and Generating an Alarm Using a Bash Script

  In this article, we are going to discuss the syslog protocol. We’ll also learn about the logger command, which is a shell command and acts as an interface for... Read more

  Posted on 25 February 2021

• Write a Bash Script to Create Users and Groups Systematically

  In this article, we are going to learn how to create users and groups through a shell script. Write Script: Now, we will create a script to add a user.... Read more

  Posted on 24 February 2021

• Creating and Configuring Cron Jobs for Task Scheduling in Linux

  In this article, we are going to learn how to configure Cron Jobs. We are going to use crontab to set up a Cron Job. Configure Cron Open your terminal and go... Read more

  Posted on 23 February 2021

• Write a Bash Script Accessing SQL Databases Remotely Or Locally

  In this article, we are going to learn how to automate SQL queries by connecting to a server using a shell script. Bash scripting is used for automating things. Read more

  Posted on 22 February 2021

• Using Linux Iptables for a Firewall

  In this article, we are going to set up a firewall using iptables. iptables is the standard firewall software present in most Linux distributions. We are going... Read more

  Posted on 21 February 2021

• Rotating Files from RAM to Storage for Log Rotation in Linux

  In this article, we are going to discuss the logrotate Linux tool. Using this tool, administration of systems becomes easy. The systems generate large number... Read more

  Posted on 20 February 2021

• Compressing and Archiving Files in Linux Operating System

  There is a difference between a compressed and an archive file. So, what is an archive file? It is a collection of files and directories that are stored in a... Read more

  Posted on 19 February 2021

• Write a Bash Script to Monitoring Directories and Files

  inotify is a tool in Linux which is used to report when a file system event occurs. Using inotify, you can monitor individual files or directories. Prerequisite... Read more

  Posted on 18 February 2021

• Write a Bash Script to Configuring Basic Network Connectivity

  In this article, we are going to configure basic network connectivity using wpa_supplicant. Prerequisites Besides having a terminal open, we need to remember a... Read more

  Posted on 17 February 2021

• Gathering and Aggregating System Information in Linux

  In this article, we are going to discuss the dmidecode Linux tool, which will gather information about the system such as CPU information, server, memory, and... Read more

  Posted on 15 February 2021

• Ubuntu Basic Security Practices

  In this article, we will look at some best practices to secure Ubuntu systems. Linux is considered to be a well secured operating system. Read more

  Posted on 14 February 2021

• Configure Ubuntu System to Connect Network with Static IP

  When you install Ubuntu server, its network setting defaults to dynamic IP addressing, that is, the network management daemon in Ubuntu searches for a DHCP... Read more

  Posted on 13 February 2021

• Securing Ubuntu System Against Brute Force Attacks

  So you have installed minimal setup of Ubuntu, you have setup SSH with public key authentication and disabled password authentication, and you have also... Read more

  Posted on 12 February 2021