You already know how powerful rsync utility is on Linux platform. One of the useful feature of rsync is that it can incrementally copy big files. i.e If you have a huge file (especially backups), that keeps changing every day, but you don’t need to copy the whole file. Instead using rsync, you can copy [...]
Ramesh Natarajan
Q: How do I encrypt my bash shell script on Linux environment? The shell script contains password, and I don’t want others who have execute access to view the shell script and get the password. Is there a way to encrypt my shell script? A: First, as a best practice you should not be encrypting [...]
If you try to follow the how to install Apache with SSL article that we discussed a while back, you’ll face an issue during “make” because of version compatibility between Apache 2.4.4 and APR utilities (Apache Portable Runtime Library) that comes with CentOS 6. We’ve explained in this article how to solve that issue to [...]
As you already know, it is very critical to take backup of your system on an on-going basis. If you are using Ubuntu desktop, depending on your requirement, you can use any one of the following software to perform backup. Play around with these and pick the one that satisfies your need. 1. Pybackpack This [...]
When you are reorganizing disks or LUNs or RAID groups, you might want to sometime drop few existing LUNs (and RAID Groups) to create a bigger LUN. We’ve already explained how to create a new RAID Group and LUN. In this article, let us review how to delete an existing LUN (and RAID Group). First, if a [...]
Probably most of you are already using Chrome as your primary browser. If not, switch to it immediately. Chrome is extremely fast when compared to any other browser. These tips will help you to get most out of the Chrome browser. 1. Pin Tab When you pin a tab, it minimizes the tab to display [...]
This article explains how to create new Raid Group and bind LUN using Navisphere GUI on a EMC CLARiiON storage array. 1. Login to Navisphere Login to Navisphere -> expand the tree, select “RAID Groups” -> Right mouse-click and select “Create Raid Group”. 2. Create Raid Group This will display the following “Create RAID Group” [...]
This article explains how to upgrade Big-IP F5 load balancer LTM software from version 9 to 11 (and from 10 to 11) There is no direct upgrade path from 9 to 11. So, we have to first upgrade from 9 to 10, and then from 10 to 11. Starting version 10, upgrading F5 is fairly straight [...]