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Where to start with Rsync command : 8 Rsync Examples

  • https://linuxtechlab.com; By Shusain (Posted by linuxtechlab on Jul 16, 2018 7:55 PM EDT)
  • Story Type: Tutorial; Groups: Linux
Rsync command is used for transferring of files on Linux machines from one system to another. It uses method on incremental file transfer for copying the files & since the file transfer is incremental, only the difference among the two files is copied & not the complete file as is the case with other tools like scp. Rsync is very lightweight, it is fast as well as secure & also uses very low bandwidth for data copy.

Create your first Docker container : A Beginner’s guide

A Docker container provides a way to run multiple isolated systems on a single server or host. Each container shares kernel (& libraries also) of the host’s operating system. And since each container that is being used, shares OS with host, it makes docker containers very light in size. In-fact size of a Docker container can be in Megabytes (not GBs) & they load up extremely faster in mere seconds as compared to virtual machines that are GBs in size & take minutes not seconds to load up.

Informative guide to Gitlab tutorial for Beginners

  • https://linuxtechlab.com; By Shusain (Posted by linuxtechlab on Jul 3, 2018 5:35 PM EDT)
  • Story Type: Tutorial; Groups: Linux
Gitlab is web GUI based manager for git repositories with support for CICD, issue tracking & wiki. Gitlab provides easy to use commands & controls for the git repositories, we can easily create new git repositories, manage them & all that using a nice graphical interface. With Gitlab, we can make our repositories completely private or can also allow public access over LAN or over INTERNET.

How to rename user in Linux (also rename group & home directory)

  • https://linuxtechlab.com; By Shusain (Posted by linuxtechlab on Jun 26, 2018 1:48 PM EDT)
  • Story Type: Tutorial; Groups: Linux
We might have come across a situation where we might want to rename user in Linux system, for whatever reasons. We can easily rename user in Linux & also we can rename the home directory or its UID as well.

A Gitlab tutorial — Things to do after installation

  • https://linuxtechlab.com; By Shusain (Posted by linuxtechlab on Jun 26, 2018 10:05 AM EDT)
  • Story Type: Tutorial; Groups: Linux
Once we have our Gitlab server ready, we must be able to perform common operations like the ones mentioned below, 1- Add SSH keys 2- Create/Remove User 3- Create/Remove Groups 4- Create Project

Easy guide on how to install Java on Ubuntu systems

Java is a high level programming language that is being used for a large number of applications & is installed on large number of servers/systems. We have already covered how we can install java...

Let’s discuss some examples of SED command

  • https://linuxtechlab.com; By Shusain (Posted by linuxtechlab on Jun 21, 2018 9:41 AM EDT)
  • Story Type: Tutorial; Groups: Linux
Sed command or Stream Editor is one of the most utilised utility for Linux systems. It is mainly used for text substitution, find/replace operations & also other text manipulations like search, insertions deletion. We...

Secure your website with SSL sha2 certificate

Securing websites, especially those that saves users information, is of utmost importance. We use SSL certificates to secure communication between users & websites. SSL certificates helps...

Creating a Wildfly cluster for load-balancing in Linux

This is a simple & easy guide to help you create a Wildfly cluster on the Linux machines.We will be using wildfly verison 10.1.0, which is the latest wildfly version at the time of writing this tutorial. Wildfly supports clustering out of the box & we need not install any special services/packages to get wildfly cluster working.

Step by Step guide for creating Master Slave replication in MariaDB

Replication is used to create multiple copies of our database & these copies then can either be used as another database to run our queries on, queries that might otherwise affect performance of master server like running some heavy analytics queries or we can just use them for data redundancy purposes or for both. We can automate the whole process i.e. data replication occurs automatically from master to slave. Backups are be done without affecting the write operations of the master

Rollback an update on RHEL/CentOS – A simple guide

Yum is default package manager for RPM based Linux distributions like RHEL, CentOS & is used to managing packages for the system. We can install, remove or update packages using the yum command. But can we rollback an update that has been installed on the system ?

Simple way to compare files in Linux for differences

  • https://linuxtechlab.com; By Shusain (Posted by linuxtechlab on Jun 1, 2018 12:09 PM EDT)
  • Story Type: Tutorial; Groups: Linux
There are many GUI tools available to compare files & folders to check for any changes or dissimilarities, but it does not mean that one can’t perform comparison or diff using CLI on a...

Benchmark your Linux systems: Install Sysbench tool

  • https://linuxtechlab.com; By Shusain (Posted by linuxtechlab on Jun 1, 2018 2:55 AM EDT)
  • Story Type: Tutorial; Groups: Linux
Performing network speedtest on servers or on desktops are one of the common tasks that are performed almost on regular basis. Most of the speed tests...

Tar command Examples : Compress & Decompress the filesdirectories

One of the most performed functions during day to day activities of a system admin is data archiving or data compression/Decompression. And normally we use ‘tar’ command to do so but there are other options as well for data archiving or extraction, but that’ the tutorial for another time. In this tutorial, we are going to discuss tar command examples & the various actions we can achieve using it All these commands will work on most of the Linux distributions.

Mail Command : Send mail from terminal on Linux machines

There are plenty of ways for sending email while using GUI , using browser or with an email client. But options are limited when it comes to command line interface aka CLI. In this...

Easy & simple guide to Backup & Restore GITLAB

Gitlab is a web GUI for git repositories with support for CI/CD, issue tracking & wiki. We have already discussed in detail, how we can install GITLAB on CentOS & Ubuntu systems. In this tutorial, we will discuss how we can backup & restore Gitlab.

Ansible Tutorial: Introduction to simple Ansible commands

  • https://linuxtechlab.com; By Shusain (Posted by linuxtechlab on May 21, 2018 11:16 AM EDT)
  • Story Type: Tutorial; Groups: Linux
looking at the syntax of a simple ansible commands,

Learn to create Bootable Linux Flash Drive (using Ubuntu)

To be able to install Ubuntu or any other Linux OS or even any other OS like Windows etc, we either need a bootable FlashDrive or a DVD of the OS. In this tutorial,...

How to easily add ssh credentials on Jenkins Server

Jenkins can make ssh connection to a remote server for the purpose of executing a command or running a script or we can also copy file from jenkins or some other server to another...

How to mount NTFS drives on Linux easily

Windows operating system uses NTFS for partitioning large Hard disk drives, whether they are local hdd or an external one. They can be easily used among systems but when these NTFS partitioned drives...

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