Create and Delete Users in MySQL
December 29th, 2011 by Youzhny
MYSQL which forms the M of the LAMP series is a widely used open source relational database management system (RDBMS).
While working on a project, i learnt that some of the developers who were too much addicted with tools like PhpMyAdmin didn’t actually know how to create / delete users from a command line. For the information of them and for all others, this is the post to read. (more…)
How to update Ruby on CentOS 5.x
December 29th, 2011 by Youzhny
CentOS is great and by far my preferred distro, however it’s package support is terrible. Whilst it’s ties to RHEL make it solid and usable the lack of repos really does cause a load of headaches.
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Install PHP Mcrypt on CentOS 6
December 29th, 2011 by Youzhny
CentOS 6 still doesn’t by default include mcrypt in it’s distribution on repositories.
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CentOS/RedHat Linux How to change hostname?
December 28th, 2011 by Youzhny
How to change hostname of a CentOS/RedHat system?
There are several ways to do that but I am using the old way. VI is my friend and still working. I am using a remote SSH session to one of my virtual machines but you can perform same steps from the console. (more…)
A very Merry Christmas to all
December 26th, 2011 by Youzhny
Just wanted to wish anyone who does actually stop by here a very Merry Christmas and a happy new year!
Linux and UNIX find command
December 26th, 2011 by Youzhny
In Unix-like and some other operating systems, find is a command-line utility that searches through one or more directory trees of a file system, locates files based on some user-specified criteria and applies a user-specified action on each matched file. The possible search criteria include a pattern to match against the file name or a time range to match against the modification time or access time...Create root user account on Linux
December 25th, 2011 by Youzhny
Method1:
You can create another account who will have the same power as root user. It very much simple in most of Linux OS.
Open a Root Terminal (more…)
Monitoring ESXi Server health using Nagios/Opsview
December 22nd, 2011 by Youzhny
As part of a project I am currently working on I have a requirement to check that my clients’ infrastructure is working to the best of its ability. Whilst we perform regular checks to ensure the sites are running as expected we don’t currently have an easy way to check the health of the ESX hosts that the virtual servers run on. Until now. (more…)
Monitoring HP ESXi Hosts using Insight Remote Support
December 22nd, 2011 by Youzhny
This is just a direct link to the HP Blog article itself but worth a read if you are looking at monitoring any HP server running ESX or ESXi. The main bit that I have always found is that you need to install the HP extensions for ESXi installed as this greatly improves what you can see from remote tools such as Insight Remote Support, Nagios/Opsview or from the vSphere client itself. (more…)
Opsview Labs
December 22nd, 2011 by Youzhny
I had an unexpected, but much welcomed, tweet today from the team at Opsview who would like to make use of some of my writing about Opsview on their own Labs blog. I can honestly say that I wasn’t expecting the blog to be read and picked up in this way but I am pleased that I can hopefully reach a few more people with the data appearing on the Opsview Labs blog as well. (more…)
How to enable SNMP for ESX/ESXi 3.5, 4.x, and 5.0
December 22nd, 2011 by Youzhny
Last night I wrote an article about how to monitor the health of an ESXi server (link here) and I wanted to explain a bit more about my findings with SNMP on an ESXi host.
My goal with the monitoring was to use the check_dell and check_hp commands I have found for Nagios/Opsview to monitor the hardware that ESX is running on. The ESXi installs I am working with are using the Dell and HP management...
WordPress Email from Address
December 7th, 2011 by Youzhny
Just a quick from me today.
WordPress is pretty good, but one thing that always was a little strange was the way your site emails always came from “wordpress@mydomain.com” instead of being able to set it yourself.
Open up your themes functions.php bang this in and edit as per your needs and your done!
add_filter('wp_mail_from', 'custom_mail_from');
add_filter('wp_mail_from_name', 'custom_mail_from_name');
function...