Linux Server See the Historical and Statistical Uptime of System With tuptime Utility

Posted on in Categories Command Line Hacks, Hardware last updated September 6, 2015

You can use the following tools to see how long system has been running on a Linux or Unix-like system:

  • uptime : Tell how long the server has been running.
  • lastt : Show the reboot and shutdown time.
  • tuptime : Report the historical and statistical running time of system, keeping it between restarts. Like uptime command but with more interesting output.

Collecting Ubuntu Linux System Information

Posted on in Categories Command Line Hacks, Hardware, Howto last updated September 2, 2015

For new computer or Laptop or server, I need to collect the information about its hardware. This is also useful when you need to replace a disk or memory with a vendor. In order to replace hardware you need all information in advance. In this post, I’m going to list commands that you can use to collect the hardware information.
Ubuntu Linux Server Collecting System Information

A Shell Primer: Master Your Linux, OS X, Unix Shell Environment

Posted on in Categories Command Line Hacks, Howto last updated November 9, 2016

On a Linux or Unix-like systems each user and process runs in a specific environment. An environment includes variables, settings, aliases, functions and more. Following is a very brief introduction to some useful shell environment commands, including examples of how to use each command and setup your own environment to increase productivity in the command prompt.

5 Awesome Open Source Backup Software For Linux and Unix-like Systems

Posted on in Categories Open Source last updated May 18, 2015

A good backup plan is essential in order to have the ability to recover from

  • Human errors
  • RAID or disk failure
  • File system corruption
  • Data center destruction and more.

In this post I’m going to list amazingly awesome open source Backup software for you.

What to look for when choosing backup software for an enterprise?

Make sure the following features are supported backup software you deploy:

8 Tips to Solve Linux & Unix Systems Hard Disk Problems: Like Disk Full Or Can’t Write to the Disk

Posted on in Categories Datacenter, Hardware, Storage last updated March 28, 2016

Can’t write to the hard disk on a Linux or Unix-like systems? Want to diagnose corrupt disk issues on a server? Want to find out why you are getting “disk full” messages on screen? Want to learn how to solve full/corrupt and failed disk issues. Try these eight tips to diagnose a Linux and Unix server hard disk drive problems.

How To Use Vagrant To Create Small Virtual Test Lab on a Linux / OS X / MS-Windows

Posted on in Categories Cloud Computing, Virtualization last updated October 28, 2014

Vagrant is a multi-platform command line tool for creating lightweight, reproducible and portable virtual environments. Vagrant acts as a glue layer between different virtualization solutions (Software, hardware PaaS and IaaS) and different configuration management utilities (Puppet, Chef, etc’). Vagrant was started back at 2010 by Mitchell Hashimoto as a side project and later became one of the first products of HashiCorp – the company Mitchell founded.

While officially described as a tool for setting up development environments, Vagrant can be used for a lot of other purposes by non developers as well:

  • Creating demo labs
  • Testing configuration management tools
  • Speeding up the work with non multi-platform tools such as Docker

In this tutorial I’ll show how can we take Vagrant as use it to create small virtual test lab which we will be able to pass to our colleagues.

5 Awesome Open Source Cloning Software

Posted on in Categories Datacenter, Hardware, Open Source, Storage last updated November 4, 2015

Cloning is nothing but the copying of the contents of a server hard disk to a storage medium (another disk) or to an image file. Disk cloning is quite useful in modern data centers for:

  1. Full system backup.
  2. System recovery.
  3. Reboot and restore.
  4. Hard drive upgrade.
  5. Converting a physical server to virtual machine and more.

In this post, I’m going to list the Free and Open Source Software for Disk Imaging and Cloning that you can use for GNU/Linux, *BSD and Mac OS X desktop operating systems.

Linux Tutorial: Install Ansible Configuration Management And IT Automation Tool

Posted on in Categories Datacenter, Hardware, Open Source, Python last updated October 1, 2014

Today I will be talking about ansible, a powerful configuration management solution written in python. There are many configuration management solutions available, all with pros and cons, ansible stands apart from many of them for its simplicity. What makes ansible different than many of the most popular configuration management systems is that its agent-less, no need to setup agents on every node you want to control. Plus, this has the benefit of being able to control you entire infrastructure from more than one place, if needed. That last point’s validity, of being a benefit, may be debatable but I find it as a positive in most cases. Enough talk, lets get started with Ansible installation and configuration on a RHEL/CentOS, and Debian/Ubuntu based systems.

Installing Tails Live Linux Operating System For Preserving Privacy and Anonymity On The Net

Posted on in Categories Open Source, Security last updated October 1, 2014

Nowadays, privacy does not hold much value when it comes to the privacy of our data on our digital devices or on the internet. In the past few weeks, we learned that everyone who tries to maintain privacy on the net is under suspicion which is all the more reason to try to keep our data, contacts, communications, and whereabouts on the internet anonymous and hidden from prying eyes as much as possible. This holds true even more for people that are more exposed like human rights activists, journalists, lawyers, and even doctors. Some of the distributions that try to assist us with this build on the Tor network.