Disaster recovery of Mysql using DRBD and Heartbeat

MySql replication

Disaster recovery (DR) is the process, policies and procedures that are related to preparing for recovery or continuation of technology infrastructure which are vital to an organization after a natural or human-induced disaster. This tutorial is based on implementing a disaster recovery system for a Mysql server, which of course runs in a Linux box. You can also use this …

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PC Power Supply Unit – Is it important ???

Power SMPS

  Short answer – YES For the long answer read on …. Ever wondered why a good quality computer power supply costs Rs.3000 and upwards whereas you can get a Cabinet+PSU for 1000 Rs. What is the difference ? Cheap PSU does not include the the following to save costs AC Filter and Transient Suppressor – This is a relatively …

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How to hide user account in Windows 7

Here I’m showing steps to hide a user account in Windows 7. The user account can be hidden from welcome screen but can be used while sharing etc. Steps Create a new account from User Accounts Make the following changes in registry Goto HKEY_LOCAL_MACHINE\Software\Microsoft\WindowsNT\CurrentVersion\Winlogon\SpecialAccounts\Userlist Create a new “KEY”  if “SpecialAccounts” is not listed, under special accounts create “userlist” too (again …

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Cannot Connect to the Printer, Printer Processor does not exist.

  When we trying to share a printer connected to a Windows XP machine with Windows 7, getting an error message like “Cannot connect to the printer, Printer processor does not exist”. If you get a Windows 7 machine, it makes sense to share that printer so that any computer can print to it. Unfortunately, trying to print to a …

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Technical help line toll free numbers

Brand Phone Number acer 1800 116677 Adrenalin 1800 444 445 AMD 1800 425 6664 APC 180044422877 Apple Computers 1800 444 683 Brother 1800 276 7746 Canon 1800 333 366 Cisco Systems 1800 221 777 Compaq – HP 1800 444 999 Data One Broadband 1800 4241800 Dell 1800 425 4026 Dell 8025068032 Dell 1-800 425 8045 Dell 8025068033 DELL Gold Support …

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Matrix effect in DOS

metrix dos

The Matrix is a 1999 science fiction-action film written and directed by Larry and Andy Wachowski. The film depicts a future in which reality as perceived by most humans is actually a simulated reality created by sentient machines to pacify and subdue the human population, while their bodies’ heat and electrical activity are used as an energy source. Matrix wallpapers …

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Identify unknown device driver manually

If you find a diver conflicted device in the device manager, It is difficult to identify the device. Most time it will be names as “Unknown device” “PCI Device”. There are some softwares to identify the device manufacture. Here I explained how to identify this device manually Open Device manager Run command (devmgmt.msc) Take the properties of the device which …

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Disable WordPress 3.1 admin bar for all users except admin

WordPress admin bar is a new feature of wordpress 3.1. For some customised wordpress  CMS like our ASK Binbert have to disable navigation to default wp-admin for all users, if the Admin bar is showing top of the site it will give a temptation to go to dashboard. but site have their own dashboard for the users. In these situations …

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Boot an ISO from Hard disk using GRUB 2

I was googling on how to boot an ISO in hard disk/USB disk, so that I can avoid the hectic CD/DVD burning process to test my favorite GNU/Linux distribution, but sadly I couldn’t find any straight forward method  to achieve this. I am blessed to attend  ILUG-cochin (Indian Libre User Group) meeting on 4th Sunday of January 2011, where I …

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Buddypress – WordPress CMS as Social network

Buddypress is an open source plugin for wordpress. buddyperss can change wordpress as a social networking site. Anyone can create their own social networking sites in 10 minutes. It can be integrated with organizations intranet sites, institutes, small communities etc.  Application is working on PHP platform and MySql database. It support Gravatar as well as manual uploads, so it is …

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