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How to use FIND command in Linux
Find command is a pretty useful command for easily locating files & folders in Linux. What makes it a powerful command is that we can use a number of search criteria/options to refine the search. It can be found & used on almost all Linux distros by default.
Install Redis on CentOS / RHEL
Redis is an open-source in-memory key-value data structure store that can be used as a cache server, message broker, etc. We can use a number of data types with redis like strings, lists, maps, sets, sorted sets, HyperLogs,…
How to setup SSH login without password on Linux systems
We might be required to setup ssh login without password for any number of reasons like remote file/commands execution, initiating backups with SCP, etc. In this tutorial, we will learn to setup ssh login without password by using ssh public-private key-based authentication.
Create a SELF-SIGNED SSL Certficate in Linux
Security threats like data theft etc are on the rise & it is of utmost importance that we employ some security to avoid such incidents. This is especially true when we are trying to access some websites over the public internet & our connections are not secure.
How to install NGINX from Source packages in Linux
Nginx web server is one of the most famous web servers that needs hardly any introduction. It is a very fast lightweight application that can work not only as a web server but also as a cache server,…
How to install Nginx on CentOS/RHEL
Nginx is one a very famous, open-source web server application that we can also use as a reverse proxy, cache server as well as a load balancer among other things. It is a powerful, lightweight application & also…
How to Execute a Command or a Script on system Startup or Reboot
Being a Linux system admin or even a general Linux user, you might be required to run some commands or scripts at a regular interval or at a needed time. We use crontab to accomplish these tasks &…
How to change timezone in Linux
When we install any Linux distribution, we can provide a timezone & time will be served based on that timezone. But we can also change the timezone once we have installed the operating system. In this tutorial, we…
Introduction to Bash Scripting Tutorial
Linux Shell Scripting is & always has been one of the most desired skills that a System Administrator and now DevOps engineers are required to have. It has been used by Linux experts to perform all sorts of…
Install EPEL repository on CentOS/RHEL 6, 7 & 8
EPEL repository is part of special groups within the fedora group, it creates & maintains additional packages for Enterprise Linux, mainly CentOS, RHEL, Scientific Linux, Oracle Linux. EPEL stands for Extra Packages for Enterprise Linux & provides packages…
Examples on how to use YUM command in Linux
YUM or Yellowdog Updater Modified is a utility for managing of rpm packages & is available for all Redhat OS & other Linux distros based on Redhat. It is used to install, remove, update & to gather information…
Examples on how to use RPM command in Linux
RPM (RedHat Package Manager) is the default package manager for RedHat & for many other Linux distributions based on it like CentOS, Oracle Linux, and Amazon Linux among others. RPM is used for processing the packages with .rpm…
How to install MySQL on Ubuntu
MySQL is a popular Open Source Relational Database System aka RDBMS. MySQL uses a relational database & structured query language (SQL) to manage all the data. It’s used for developing all sorts of web-based applications. It’s one of the most widely used database servers in the world & also the main component of the LAMP stack. In this tutorial, we will learn how we can install MySQL on Ubuntu.
Beginner’s guide to Backup Postgres Database
Backups are important & they are our only contingency for when we delete things that we should not or there are malfunctions hardware or otherwise. Backups at regular intervals are essential for any organization to maintain a proper…
Scheduling CRON Jobs with Crontab for Beginners
Crontab is an important utility that is used for scheduling cron jobs i.e. setting up a specified time-based job. Cron job can be a single command or we can also schedule cron to run bash scripts. These cron…
Important POSTGRESQL commands you should know
PostgreSQL is one of the most widely used databases in the world & is also very easy to administer. In this tutorial, we will learn some important postgresql commands that every beginner should know. In our previous tutorials,…
Simple guide to install POSTGRESQL on Ubuntu
PostgreSQL (also called postgres) is very famous, powerful, open-source object-relational database management system that has been around for almost 30 years. PostgreSQL requires very minimum maintained efforts because of its stability. Therefore, if you develop applications based on…