Here is the good, bad and ugly scenario for backups. Ugly – Not having a backup. When the application or database crashes, you are screwed. Bad – Taking regular backup, but storing the backup on the same server. When the application or database crashes, you can restore it from the backup located on the same [...]
Ramesh Natarajan
If you are running any web based open source application that is written in perl, you should be using mod_perl with Apache instead of running it as CGI. mod_perl is way faster than running a web application using CGI. This article explains how to install mod_perl on Apache 2. First, install Apache 2, if you [...]
I’m very excited for this year and looking forward to write lot of high quality tutorials on Linux and open source technology. There are tons of topics on Linux that we would like to cover, and we already started writing several articles for the upcoming weeks. We also would like to cover topics that you [...]
Happy New Year to all TGS readers. We wish you and your family a happy and prosperous new year. Last year was an awesome year for the blog. Currently we have over 32,000+ subscribers. We produced lot of high quality articles last year on Linux and open source. I also published the Nagios Core 3 [...]
Merry Christmas and Happy Holidays to all TGS Readers. To wrap this year, I’ve collected 50 UNIX / Linux sysadmin related tutorials that we’ve posted so far. This is lot of reading. Bookmark this article for your future reference and read it whenever you get free time. Disk to disk backup using dd command: dd [...]
Question: When I execute check_nrpe command with some arguments, I get the message “CHECK_NRPE: Received 0 bytes from daemon. Check the remote server logs for error messages.”. How do I fix this issue? Answer: The issue is very straight forward. check_nrpe doesn’t take any arguments by default. You should enable the command line arguments for [...]
Question: On my DELL PowerEdge server, the front LCD displays “E1810 HDD 1 fault” error message. How do I fix this issue? Answer: The message itself is self explanatory as it says “HDD 1 fault” indicating that the hard drive #1 failed. Following are my recommendations on what you can do to fix this. Verify [...]
All open source applications use MySQL database. With the introduction of stored procedures in MySQL 5, it is getting widely adopted by Oracle developers and commercial organizations. If you are sysadmin, DBA, or developer, or someone who manages IT development, you should have good knowledge on MySQL database. A while back, I provided a list [...]