Ref: http://magazine.redhat.com/2008/01/16/tips-and-tricks-yum-security/
Ref: http://www.cyberciti.biz/faq/redhat-fedora-centos-linux-yum-installs-security-updates/
Install Plugin
Type the following command:
# yum install yum-security
How Do I Display Available Security Updates?
Type the following command:
# yum list-security
Sample Outputs:
Loaded plugins: rhnplugin, security
RHSA-2009:1148-1 security httpd-2.2.3-22.el5_3.2.x86_64
RHSA-2009:1148-1 security httpd-devel-2.2.3-22.el5_3.2.i386
RHSA-2009:1148-1 security httpd-manual-2.2.3-22.el5_3.2.x86_64
RHSA-2009:1148-1 security mod_ssl-1:2.2.3-22.el5_3.2.x86_64
list-security done
To list all updates that are security relevant, and get a reutrn code on whether there are security updates use:
# yum [...]
Archive for the ‘Articles’ Category
How to display security updates by yum
Monday, December 7th, 2009Critical vulnerability in the Linux kernel affects all versions since 2001
Thursday, August 27th, 2009Ref :http://www.h-online.com/security/Red-Hat-Novell-and-CentOS-update-for-kernel-vulnerability-Update–/news/114072
Google security specialists Tavis Ormandy and Julien Tiennes report that a critical security vulnerability in the Linux kernel affects all versions of 2.4 and 2.6 since 2001, on all architectures. The vulnerability enables users with limited rights to get root rights on the system. The cause is a NULL pointer dereference in connection with [...]
How to Rebuilding failed Linux software RAID
Friday, August 14th, 2009Ref: http://aplawrence.com/Linux/rebuildraid.html
Recently I had a hard drive fail. It was part of a Linux software RAID 1 (mirrored drives), so we lost no data, and just needed to replace hardware. However, the raid does requires rebuilding. A hardware array would usually automatically rebuild upon drive replacement, but this needed some help.
When you look at a [...]