Non-Uniform Memory Access
Non-Uniform Memory Access or Non-Uniform Memory Architecture (NUMA) is a computer memory design used in multiprocessors, where the memory access time depends on the memory location relative to a proce
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389 notes on Linux, tools and troubleshooting
Install RedHat Enterprise Linux 5, Centos 5
Linux can be installed in several ways, including CD-ROM, hard disk, network, and Red Hat Network. This article focuses on installation from CD-ROM.
Linux
Linux (commonly pronounced IPA: /ˈlɪnəks/ in English; variants exist) is a Unix-like computer operating system. Linux is one of the most prominent examples of free software and open source development
How do I turn off the bell/beep
In Linux, you can disable the beep if you do not want it. The sound comes from the pcspkr module. Use: # rmmod pcspkr. To disable it every time the machine starts…
Extract files from an RPM package
RPM (Red Hat Package Management) packages are installation files for Red Hat Linux distributions. They are popular because software is easy to install and remove.
Send Ctr + Alt + Del to the guest OS, not dom0
In a guest console, Ctrl + Alt + Del is received by dom0. In RHEL virt-manager, press Ctrl three times, then Alt + Del to send the combination to the guest.
Determined system's CPU(s) can run a fully virtualized guest
To run Xen in fully virtualized mode on Linux, the CPU must support virtualization technology. Check whether your CPU can run in fully virtualized mode…
Make a clone of a virtual guest operating system in RHEL 5
Xen in Red Hat 5 does not include guest OS cloning, but guests can be cloned with dd or LVM snapshots. This article covers the snapshot method.
Find the number of sockets a process currently has open
To find how many sockets a process has open on Linux, first identify its PID using $ ps -aef | grep, then count its sockets.