IT Support Blog

IT & Tech News, How-to and more

Understanding swap files in Linux

June 29, 2011

Summary If you run anything close to a modern operating system, you almost certainly interact with a swap file. You might be familiar with the basics of how these work:...

Linux log files

June 29, 2011

Linux Log files and usage => /var/log/messages : General log messages => /var/log/boot : System boot log => /var/log/debug : Debugging log messages => /var/log/auth.log : User login and authentication logs => /var/log/daemon.log : Running...

Distribution List Recipients Not Receiving Messages

March 29, 2011

Distribution List Recipients Not Receiving Messages Individual users in one distribution list can't receive messages from outside vendors who e-mail that list. How can I fix this? Q. I've created a distribution...

ssh takes a long time to connect or log in

January 20, 2011

Large delays (more than 10 seconds) are typically caused by a problem with name resolution: Some versions of glibc (notably glibc 2.1 shipped with Red Hat 6.1) can take a long...