How to update man keywords database

January 16, 2013 at 07:40 AM | categories: Centos, Ubuntu, Sysadmin, Unix, RHEL, Linux, Tips | View Comments
Man keywords database allow you to search for man pages using keywords, the database needs to be updated when ever man pages are added or removed. This is how you do it for various *nix types. mandb ...
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Strongswan now supports PAM authentication

November 07, 2012 at 07:40 AM | categories: Centos, Sysadmin, RHEL, Linux, Tips, Security, IPSEC | View Comments
Strongswan release 5.0.1 includes a XAuth PAM plugin which requests username/password XAuth credentials and verifies them against Pluggable Authentication Modules (PAM). This plugin is not enabled by default to enable it you need to add the following to your ./configure...
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Strongswan now supports Cisco unity extensions

November 07, 2012 at 07:40 AM | categories: Centos, Sysadmin, RHEL, Linux, Tips, Security, IPSEC | View Comments
I previously wrote about setting up split tunneling on Strongswan using the attr-sql plugin With the release of Strongswan 5.0.1 it is no longer the only way to support split tunneling. Strongswan 5.0.1 introduces the unity plugin which allows for...
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IPSEC split tunneling VPN with Mac OSX and Strongswan 5 on Centos/RHEL 6

September 01, 2012 at 10:08 AM | categories: Centos, Mac OS X, Howto, Sysadmin, RHEL, Linux, Tips, Security, IPSEC | View Comments
In my previous post i described how to setup an IPSEC VPN for use with Iphone, Ipad and Mac OSX IPSEC VPN clients. This post describes how to enable split tunneling which is supported by the Mac OSX IPSEC...
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Iphone/Ipad/Mac OSX IPSEC VPN with Strongswan 5 on Centos/RHEL 6

August 23, 2012 at 10:21 AM | categories: Centos, Mac OS X, Howto, Sysadmin, RHEL, Linux, Tips, Security, IPSEC | View Comments
This howto describes setting up an IPSEC VPN for use with the Iphone, Ipad and Mac OSX VPN clients on Centos/RHEL 6. I am using the 5.x branch of Strongswan which is now the mainline actively maintained branch. At...
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Fix Bind error (broken trust chain) resolving

August 22, 2012 at 08:21 PM | categories: Tips, RHEL, Centos, DNS, Linux | View Comments
This Bind named issue results in queries failing and log messages such as the following being logged error (no valid KEY) resolving 'dlv.isc.org/DNSKEY/IN': 156.154.101.23#53 error (broken trust chain) resolving './NS/IN': 193.0.14.129#53 The issue is caused by the date on...
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How to setup a network install server

January 29, 2008 at 08:53 PM | categories: Kickstart, Howto, RHEL, Centos, Linux | View Comments
This howto will describe how to setup Linux network install server. We will be using pxeboot and dhcp to allow for bare metal installation without the need for physical media. Network install servers are essential when large numbers of machines...
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