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Tag: shell script

Linux / Linux Commands / secure shell / security / ssh

How to Automatically Accept SSH Key Fingerprint?

December 21, 2020January 20, 2021 - by Magesh Maruthamuthu - 4 Comments.

SSH Secure Shell is an encryption network protocol that provides secure encrypted communications between two hosts. It allows you to connect to a remote machine securely over an insecure network. …

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Ethernet / Linux / Linux Commands / Network Interface Card / NIC / Shell Script

How to check Network Interface (NIC) information on Linux

April 21, 2020January 20, 2021 - by Magesh Maruthamuthu - Leave a Comment

By default when you set up the server you will configure the primary network interface. This is part of the build work that everyone does. Sometimes you may need to …

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Bash Script / Linux / Linux Commands / Password Policy / Shell Script / User Management

Bash Script to Send eMail With a List of User Accounts Expiring in “X” Days

January 9, 2020January 20, 2021 - by Magesh Maruthamuthu - Leave a Comment

The password enforcement policy is common to all operating systems and applications. If you want to implement a password enforcement policy on Linux, go to the following article. The password …

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Bash Script / Linux Commands / Shell Script

Bash Script to Monitor CPU, Memory and Swap usage on Multiple Linux System With eMail Alert

December 16, 2019January 20, 2021 - by Magesh Maruthamuthu - Leave a Comment

You have a small infrastructure and want to check multiple system performance simultaneously for some reason. This script will help you to create a report for you. You can use …

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Bash Script / Linux Commands / Shell Script / User Management

Bash Script to Check Successful and Failed User Login Attempts on Linux

December 2, 2019February 8, 2020 - by Magesh Maruthamuthu - Leave a Comment

One of the typical tasks of Linux administrators is to check successful and failed login attempts in the Linux system. This ensures that there are no illegal attempts at the …

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Bash Script / Linux Advanced Commands / Linux Commands / Shell Script

Bash Script to View System Information on Linux Every Time You Log into Shell

November 20, 2019November 22, 2019 - by Magesh Maruthamuthu - Leave a Comment

There are several commands in Linux to obtain system information such as processor information, manufacturer name, and serial number, etc,. You may need to run several commands to collect this …

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Bash Script / Linux Advanced Commands / Linux Commands / Shell Script

6 Methods to Quickly Check if a Website is up or down from the Linux Terminal

November 15, 2019November 15, 2019 - by Magesh Maruthamuthu - Leave a Comment

This tutorial shows you how to quickly check whether a given website is up (alive) or down from a Linux terminal. You may already know some of these commands to …

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Bash Script / Linux Advanced Commands / Linux Commands / Shell Script

Bash Script to Monitor Disk Space Usage on Multiple Remote Linux Systems With eMail Alert

November 8, 2019February 8, 2020 - by Magesh Maruthamuthu - Leave a Comment

Some time ago, we had wrote Bash script to monitor disk space usage on a Linux system with an email alert. That script works on a single machine, and you …

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Bash Script / Linux Advanced Commands / Linux Commands / security / Shell Script

Bash Script to Generate Patching Compliance Report on CentOS/RHEL Systems

November 5, 2019February 8, 2020 - by Magesh Maruthamuthu - Leave a Comment

If you are running a large Linux environment you may have already integrated your Red Hat systems with the Satellite. If yes, there is a way to export this from …

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Bash Script / Linux Advanced Commands / Linux Commands / Linux Configuration Files / Shell Script

How to Backup Configuration Files on a Remote System Using the Bash Script

October 25, 2019October 26, 2019 - by Magesh Maruthamuthu - Leave a Comment

It is a good practice to backup configuration files before performing any activity on a Linux system. You can use this script if you are restarting the server after several …

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