How to know x86 system capable running 64-bit software
How can you tell whether your system supports 64-bit, 32-bit, or 16-bit applications? This article explains Long mode and Legacy mode.
THE KNOWLEDGE BASE
All articles.
394 notes on Linux, tools and troubleshooting
Free memory by flushing pagecache and slabcache
You can free memory on demand with a simple command that clears the Linux pagecache and slabcache. Write 1 to free pagecache, 2 to free…
How to increase the I/O priority of processes
In Linux, you can increase or decrease I/O access priority per process with ionice, which displays and changes the I/O scheduling class and priority of a process…
Set passwords policy against a dictionary
Linux provides a module for password policy that prevents users from choosing easily guessed passwords. It is the pam_cracklib.so module in PAM.
Autofs version 5 Features
The new autofs version (autofs5) adds features that improve interoperability with other systems. The new features include: Direct map support, which provides a mechanism to automatica…
Increase the Virtual Console Resolution
The virtual console normally displays 80x24 lines. For a higher resolution, edit /boot/grub/grub.conf and add a vga setting to the kernel line.
Find information on the maximum amount of memory that system can handle
On newer Linux systems, dmidecode reports the maximum memory capacity supported by the system BIOS.
Find which RPM contains a specific file
On Red Hat systems, use rpm, yum, or up2date to find which RPM package contains a particular file.
Install third party Nvidia graphics drivers in kernel-xen
Follow these steps to install Nvidia graphics drivers, starting with # telinit 3 to enter init 3.