Here is link to a very nice and definitive guide to DNS. Very detailed and useful. There is a pdf version as well to download 🙂 https://webhostinggeeks.com/guides/dns/ Thanks to Andrijana Nikolic for …

When you have a lot of files in some repository and you have added a couple of new, in CVS there is no command to add just the new ones to the repository, so here is a workaround for that. cvs status …

It is good practice to keep iptables/firewall enabled. But configuring it is difficult, do you agree. Not any more 🙂 Install firewall-config sudo yum install firewall-config This will install a GUI …

For those of you, who have not heard about powertop, it is a tool to monitor the power consumption on your system. It has a tab which shows the tuneable parameters. Doing the changes suggested in …

I was trying to remove a package on one of the Ubuntu installations the other day and was not able to do so. I tried google and tried all the options mentioned in various forums like “-f”, purge, …

If you are setting up the snmpd server and have added your own mibs and do not really know if the mibs are loaded or not then simply go to the directory: /var/lib/net-snmp/mib-indexes This can save …

Tab completion is something which is missing in the sqlplus and if you have lot of tables with long names or lot of columns then it is sufficiently difficult to type them 🙂 Here is a solution for this …

Here are some pretty good links on the subject. Since there are already so many blog posts, does not make sense to add one more 🙂 http://tldp.org/HOWTO/Bash-Prompt-HOWTO/c816.html …

Image by jeffalldridge via Flickr […] Here is something that I found on the commandlinefu cp /work/host/phone/ui/main.cpp !#$:s/host/target Ah well…its very interesting and very useful. Some …

Here are some quick links on bash regular expressions, pretty good links to bookmark, if you use, regular expressions in bash regularly. I especially like the tldp link at number 3. …

I was doing something today and found that I require to fork a new process in perl. Now I had never done this earlier, so I did not know how to do this. First some background : I was doing some …

Here are linkw to two nice tutorials on curl and how to use curl to login before we try to fetch a page. Hope you find them useful. http://curl.haxx.se/docs/httpscripting.html …