Howto: Add a new yum repository to install software under CentOS / Redhat Linux
CentOS / Fedora Core / RHEL 5 uses yum for software management. Yum allows you to add a new repository as a source to install binary software. Understanding yum repository yum repository configured...
View ArticleLinux rpm command no such file or directory error and solution
New Linux user often get this error. Let us say you haved downloaded the RPM file from net and saved to /tmp, you may get error - no no such file or directory - when the file is really downloaded and...
View ArticleHowto: Redhat Enterprise Linux SELinux policy guide
Security-Enhanced Linux (SELinux) is a Linux mandatory access controls, through the use of Linux Security Modules (LSM) in the Linux kernel. SELinux is enabled by default in RHEL 5 / CentOS 5 / Fedora...
View ArticleHow to: Linux reset the permissions of the installed rpm packages with...
Sometime by mistakes all file permissions get changed and you need to restore file permission. For example a shell script or some sort of corruption could change the permissions for packages (installed...
View ArticleWhy my Linux server ext3 filesystem go read-only?
From my mailbag: We have 5 Dell server collocated running CentOS 4.x and 5.x server operating system. Sometime my file system (ext3) goes read-only. I’d like to know what could be causing such a...
View ArticleInstall Squid Proxy Server on CentOS / Redhat enterprise Linux 5
I've already wrote about setting up a Linux transparent squid proxy system. However I'm getting lots of questions about Squid basic installation and configuration: How do I install Squid Proxy server...
View ArticleLinux Failed Login Control: Lock and Unlock User Accounts Using PAM
How do I lock out a user after a set number of login attempts in Linux but also automatically unlock it after N minutes?
View ArticleRed Hat Enterprise Linux 5.2 Released
Update brings broad refresh of hardware support and improved quality, combined with new features and enhancements in areas such as virtualization, desktop, networking, storage & clustering and...
View ArticleSecurity Alert: Red hat / CentOS Linux Freetype Various Security Issues
Updated freetype packages that fix various security issues are now available for CentOS / Red Hat Enterprise Linux 3, 4, 5 and 2.1 server software.
View ArticleProject Spacewalk: Red Hat Open Sourced RHN Software
Spacewalk is an open source (GPLv2) Linux systems management solution. It is the upstream community project from which the Red Hat Network Satellite product is derived.
View ArticleImpact of the Debian OpenSSL Vulnerability On other Linux Distribution
Can bug present in the Debian OpenSSL packages affect Red Hat / FreeBSD / CentOS Linux UNIX / Windows workstation / server users?
View ArticleDownload Of The Day: Firefox 3.0.1 (Critical Security Update)
Firefox 3.0.1 has been released and available for download. This update has been rated as having critical security impact by the Mozilla. Use the following instructions to upgrade Firefox.
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Paid Support From Novell / Red Hat Not Important for Linux Adoption
Companies are increasingly choosing free community-driven Linux distributions instead of commercial offerings with conventional support options from Red Hat or Novell due to dissatisfaction with the...
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Tips To Protect Linux Servers Physical Console Access
This is an user contributed article. Linux computer console is a physical device to operate a computer / server. Here are few steps which, if taken, make it more difficult for an attacker to quickly...
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HowTo: Debug Crashed Linux Application Core Files Like A Pro
Core dumps are often used to diagnose or debug errors in Linux or UNIX programs. Core dumps can serve as useful debugging aids for sys admins to find out why Application like Lighttpd, Apache, PHP-CGI...
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FAQ Updates – June/26/2011
Our FAQ section is updated in last few days with new howtos:Linux / UNIX: Smartctl Check Hard Disk Behind 3Ware RAID CardBash Shell Count Number of Characters In a String or WordHowTo: Find Out KSH (...
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Linux / UNIX Desktop Fun: Let it Snow On Your Desktop
Feeling lonely this holiday season? Try Xsnow. This little app will let is snow on the desktop. Santa and his reindeer will complete your festive season feeling with moving snowflakes on your desktop,...
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FAQ Updates: Dec/22/2011
Our FAQ section is updated in last few days with new howto:Linux: Find Out What Partition a File Belongs ToLinux: Neighbour Table Overflow Error and SolutionLinux: Run fsck On LUKS (dm-crypt) Based...
View Article30 Best Sources For Linux / *BSD / Unix Documentation On the Web
Man pages are written by sys-admin and developers for IT techs, and are intended more as a reference than as a how to. Man pages are very useful for people who are already familiar with Linux, Unix,...
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Unix / Linux: See Colourised Filesystem Disk Space Usage
The pydf command displays the amount of used and available space on your file systems, just like df command, but in colors. The output format is completely customizable.
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