Q. When I run tar command it fails with an error that read as follows: tar: /dev/st0: Cannot write: Invalid argument How do I fix this error under CentOS / Debian / Fedora / RHEL Linux HP server systems?
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debian
How do I know when I need to update my Linux system? How do I know new patches are available for CentOS Linux (Red Hat) / Debian Linux server system?
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Q. How do I disable unneeded Apache modules under Debian Linux? A. You can disable all unneeded modules in Apache to save memory and improve performance. This may also result into improved security. Different Linux distribution follows different methods for disabling modules. Debian / Ubuntu Linux disable a module Debian / Ubuntu Linux comes with [...]
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Q. Can you explain me log files in Ubuntu Linux and how do I view logs? A. All logs are stored in /var/log directory under Ubuntu (and other Linux distro). 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 [...]
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Q. I’m using Ubuntu Linux. How do I change my hostname or the machine name? A.. You need to use hostname command, which is used to either set or display the current host or domain name of the system. This name is used by many of the networking programs to identify the machine. Following instructions [...]
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