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.
Cloud storage is nothing but an enterprise-level cloud data storage model to store the digital data in logical pools, across the multiple servers. You can use a hosting company such as Amazon, Google, Rackspace, Dropbox and others for keeping your data available and accessible 24×7. You can access data stored on cloud storage via API or desktop/mobile apps or web based systems.
In this post, I’m going to list amazingly awesome open source cloud storage engines that you can use to access and sync your data privately for security and privacy reasons.
Let us start new year with these Unix command line tricks to increase productivity at the Terminal. I have found them over the years and I’m now going to share with you.
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:
Two factor authentication is increasingly becoming a strongly recommended way of protecting user accounts in web applications from attackers by requiring a second method of authentication in addition to the standard username and password pair.
Although two factor authentication can encompass a wide range of techniques like biometrics or smart cards, the most commonly deployed technique in web applications is the one time password. If you have used applications like Gmail, you are probably familiar with the one time password generated by the Google Authenticator app that’s available on iOS or Android devices.
The algorithm used for the one time password in the Google Authenticator app is known as the Time-based One-Time Password (TOTP) algorithm. The TOTP algorithm is a standard algorithm approved by the IETF in (RFC 6238) totp-rfc.
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:
- Full system backup.
- System recovery.
- Reboot and restore.
- Hard drive upgrade.
- 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.
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.
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.
Ubuntu Linux version 14.04 LTS (code named “Trusty Tahr”) has been released and available for download. Ubuntu Linux is a community-based Linux distribution. The latest release of Ubuntu brings the best open source technologies together on one platform, with the benefit of free updates for 5 years. This latest release of Ubuntu Server is heavily focused on supporting cloud computing, mobile phones & tables, 64-bit ARM-based microservers support, and more.
If you want to monitor network throughput on the command line interface, use nload application. It is a console application which monitors network traffic and bandwidth usage in real time. It visualizes the in and outgoing traffic using two graphs and provides additional info like total amount of transferred data and min/max network usage.