<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
	>

<channel>
	<title>LAMP How To - Open Source At Work &#187; Think Networking</title>
	<atom:link href="http://www.azhowto.com/category/networking/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.azhowto.com</link>
	<description>Only Passion Matters</description>
	<lastBuildDate>Wed, 08 Feb 2012 03:07:41 +0000</lastBuildDate>
	<generator>http://wordpress.org/?v=2.9.2</generator>
	<language>en</language>
	<sy:updatePeriod>hourly</sy:updatePeriod>
	<sy:updateFrequency>1</sy:updateFrequency>
			<item>
		<title>clear dns cache in mac</title>
		<link>http://www.azhowto.com/2011/12/02/clear-dns-cache-in-mac/</link>
		<comments>http://www.azhowto.com/2011/12/02/clear-dns-cache-in-mac/#comments</comments>
		<pubDate>Fri, 02 Dec 2011 06:01:29 +0000</pubDate>
		<dc:creator>bpeh</dc:creator>
				<category><![CDATA[Think Networking]]></category>
		<category><![CDATA[Think Technology]]></category>

		<guid isPermaLink="false">http://www.azhowto.com/?p=816</guid>
		<description><![CDATA[dns might not have been cleared when changing dns entries in the /etc/file.
In mac,
dscacheutil -flushcache
]]></description>
		<wfw:commentRss>http://www.azhowto.com/2011/12/02/clear-dns-cache-in-mac/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Installing KVM in Centos, Redhat or Fedora</title>
		<link>http://www.azhowto.com/2009/12/23/installing-kvm-in-centos-redhat-or-fedora/</link>
		<comments>http://www.azhowto.com/2009/12/23/installing-kvm-in-centos-redhat-or-fedora/#comments</comments>
		<pubDate>Wed, 23 Dec 2009 12:37:27 +0000</pubDate>
		<dc:creator>bpeh</dc:creator>
				<category><![CDATA[Think Linux]]></category>
		<category><![CDATA[Think Networking]]></category>
		<category><![CDATA[Think Software]]></category>
		<category><![CDATA[Think Technology]]></category>
		<category><![CDATA[kvm]]></category>
		<category><![CDATA[virtualisation]]></category>

		<guid isPermaLink="false">http://www.azhowto.com/?p=600</guid>
		<description><![CDATA[KVM is available in RHEL 5.4. I finally managed to find the time to play around it over the weekend. I don&#8217;t think it is as matured as xen but having said that, I do agree with the approach &#8211; Kernel virtualisation. Redhat is promoting kvm very hard and you can see it from their [...]]]></description>
		<wfw:commentRss>http://www.azhowto.com/2009/12/23/installing-kvm-in-centos-redhat-or-fedora/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Setting Up A Secure Linux Authentication Server Quickly (LDAP + TLS + SAMBA)</title>
		<link>http://www.azhowto.com/2009/09/18/setting-up-a-secure-linux-authentication-server-quickly-ldap-tls-samba/</link>
		<comments>http://www.azhowto.com/2009/09/18/setting-up-a-secure-linux-authentication-server-quickly-ldap-tls-samba/#comments</comments>
		<pubDate>Fri, 18 Sep 2009 05:40:22 +0000</pubDate>
		<dc:creator>bpeh</dc:creator>
				<category><![CDATA[Blog]]></category>
		<category><![CDATA[Think Linux]]></category>
		<category><![CDATA[Think Networking]]></category>
		<category><![CDATA[Think Technology]]></category>
		<category><![CDATA[ldap]]></category>
		<category><![CDATA[samba]]></category>
		<category><![CDATA[tls]]></category>

		<guid isPermaLink="false">http://www.azhowto.com/?p=552</guid>
		<description><![CDATA[Just like microsoft active directory, having a centralised authentication server in linux is important especially when you have more than one server or service to manage. Just imagine each service (ssh, samba, httpd&#8230;etc) has its own user database&#8230; Sooner or later, you will find managing users very difficult. A simple task like deleting a user [...]]]></description>
		<wfw:commentRss>http://www.azhowto.com/2009/09/18/setting-up-a-secure-linux-authentication-server-quickly-ldap-tls-samba/feed/</wfw:commentRss>
		<slash:comments>11</slash:comments>
		</item>
		<item>
		<title>bash expect: script to handle command line prompts</title>
		<link>http://www.azhowto.com/2009/08/28/bash-expect-script-to-handle-command-line-prompts/</link>
		<comments>http://www.azhowto.com/2009/08/28/bash-expect-script-to-handle-command-line-prompts/#comments</comments>
		<pubDate>Fri, 28 Aug 2009 02:34:39 +0000</pubDate>
		<dc:creator>bpeh</dc:creator>
				<category><![CDATA[Think Linux]]></category>
		<category><![CDATA[Think Networking]]></category>
		<category><![CDATA[bash]]></category>

		<guid isPermaLink="false">http://www.azhowto.com/?p=538</guid>
		<description><![CDATA[expect is very useful to automate login process. I thought it is helpful when doing testing as well. A simple login script might work like this:

#!/usr/bin/env expect
eval spawn "/path/program"
expect "^Enter Auth Username:"
send "user\n"
expect "Enter Auth Password:"
send "password\n"

To install expect, &#8220;yum install expect&#8221;
]]></description>
		<wfw:commentRss>http://www.azhowto.com/2009/08/28/bash-expect-script-to-handle-command-line-prompts/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>bash: passing output from one program to another</title>
		<link>http://www.azhowto.com/2009/08/21/bash-passing-output-from-one-program-to-another/</link>
		<comments>http://www.azhowto.com/2009/08/21/bash-passing-output-from-one-program-to-another/#comments</comments>
		<pubDate>Fri, 21 Aug 2009 06:54:54 +0000</pubDate>
		<dc:creator>bpeh</dc:creator>
				<category><![CDATA[Think Linux]]></category>
		<category><![CDATA[Think Networking]]></category>
		<category><![CDATA[Think PHP]]></category>
		<category><![CDATA[Think SQL]]></category>
		<category><![CDATA[bash]]></category>

		<guid isPermaLink="false">http://www.azhowto.com/?p=524</guid>
		<description><![CDATA[sometimes you want to be able to pass output from one program to another, say from bash to php. There is a neat trick to do it.  In php, we execute the bash script restartapache.
&#60;?php
$command="/usr/local/bin/restartapache {$_GET['server']}";
exec($command, $output); foreach ($output as $v)
{ echo "$v &#60;br/&#62;"; }
?&#62;
then in the bash, we write the output to a [...]]]></description>
		<wfw:commentRss>http://www.azhowto.com/2009/08/21/bash-passing-output-from-one-program-to-another/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>selinux: samba and nfs</title>
		<link>http://www.azhowto.com/2009/08/21/selinuxsamba-and-nfs/</link>
		<comments>http://www.azhowto.com/2009/08/21/selinuxsamba-and-nfs/#comments</comments>
		<pubDate>Fri, 21 Aug 2009 04:22:01 +0000</pubDate>
		<dc:creator>bpeh</dc:creator>
				<category><![CDATA[Think Linux]]></category>
		<category><![CDATA[Think Networking]]></category>
		<category><![CDATA[nfs]]></category>
		<category><![CDATA[samba]]></category>
		<category><![CDATA[selinux]]></category>

		<guid isPermaLink="false">http://www.azhowto.com/?p=521</guid>
		<description><![CDATA[I find &#8220;man samba_selinux&#8221; really well documented. All the common problems associate with samba selinux can be found there.
]]></description>
		<wfw:commentRss>http://www.azhowto.com/2009/08/21/selinuxsamba-and-nfs/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Centos &#8211; Implementing a vpn server and client using openvpn</title>
		<link>http://www.azhowto.com/2009/06/12/centos-implementing-a-vpn-server-and-client-using-openvpn/</link>
		<comments>http://www.azhowto.com/2009/06/12/centos-implementing-a-vpn-server-and-client-using-openvpn/#comments</comments>
		<pubDate>Fri, 12 Jun 2009 00:09:54 +0000</pubDate>
		<dc:creator>bpeh</dc:creator>
				<category><![CDATA[Think Linux]]></category>
		<category><![CDATA[Think Networking]]></category>
		<category><![CDATA[Think Software]]></category>
		<category><![CDATA[centos]]></category>
		<category><![CDATA[openvpn]]></category>

		<guid isPermaLink="false">http://www.azhowto.com/?p=447</guid>
		<description><![CDATA[Instead of sshing into your home machine from anywhere, it is actually more secure and convenient to vpn instead. With vpn, you can share different subnets as well. The problem most people find is that setting up a vpn server can be complicated &#8211; well, not so with openvpn.
This tutorial is a summarised version of [...]]]></description>
		<wfw:commentRss>http://www.azhowto.com/2009/06/12/centos-implementing-a-vpn-server-and-client-using-openvpn/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Creating Xen Redundant Virtual Machines with Backup Procedures</title>
		<link>http://www.azhowto.com/2009/04/02/creating-xen-redundant-virtual-machines-with-backup-procedures/</link>
		<comments>http://www.azhowto.com/2009/04/02/creating-xen-redundant-virtual-machines-with-backup-procedures/#comments</comments>
		<pubDate>Thu, 02 Apr 2009 05:56:55 +0000</pubDate>
		<dc:creator>bpeh</dc:creator>
				<category><![CDATA[Think Linux]]></category>
		<category><![CDATA[Think Networking]]></category>
		<category><![CDATA[Think Software]]></category>
		<category><![CDATA[Think Technology]]></category>
		<category><![CDATA[lvm]]></category>
		<category><![CDATA[xen]]></category>

		<guid isPermaLink="false">http://www.azhowto.com/?p=425</guid>
		<description><![CDATA[It is a good idea to backup the whole virtual machine to a separate machine to achieve redundancy. 99% uptime and full redundancy can be achieved using on-the-fly mirroring, ie network raid 1. Hardware and network performance will determine if this method will work or not. There are a few software that can achieve this. [...]]]></description>
		<wfw:commentRss>http://www.azhowto.com/2009/04/02/creating-xen-redundant-virtual-machines-with-backup-procedures/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Resizing file based xen virtual machine</title>
		<link>http://www.azhowto.com/2009/02/10/resizing-file-based-xen-virtual-machine/</link>
		<comments>http://www.azhowto.com/2009/02/10/resizing-file-based-xen-virtual-machine/#comments</comments>
		<pubDate>Tue, 10 Feb 2009 00:22:38 +0000</pubDate>
		<dc:creator>bpeh</dc:creator>
				<category><![CDATA[Think Linux]]></category>
		<category><![CDATA[Think Network Monitoring]]></category>
		<category><![CDATA[Think Networking]]></category>
		<category><![CDATA[Think Software]]></category>
		<category><![CDATA[xen]]></category>

		<guid isPermaLink="false">http://web-developer.sitecritic.net/?p=381</guid>
		<description><![CDATA[You can create file based xen instances (eg, blarblar.img). If you have partitions in the file and want to increase the disk space, you cannot use resize2fs straight away on it. So you need to create a new larger file, then transfer the old file data onto it:
say I want the new filesize to be [...]]]></description>
		<wfw:commentRss>http://www.azhowto.com/2009/02/10/resizing-file-based-xen-virtual-machine/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>How to resize LVM running Xen part 1 &#8211; increase disk size</title>
		<link>http://www.azhowto.com/2009/02/06/how-to-resize-lvm-running-xen-explained-part-1-increase-disk-size/</link>
		<comments>http://www.azhowto.com/2009/02/06/how-to-resize-lvm-running-xen-explained-part-1-increase-disk-size/#comments</comments>
		<pubDate>Fri, 06 Feb 2009 06:40:01 +0000</pubDate>
		<dc:creator>bpeh</dc:creator>
				<category><![CDATA[Blog]]></category>
		<category><![CDATA[Think Linux]]></category>
		<category><![CDATA[Think Networking]]></category>
		<category><![CDATA[Think Software]]></category>
		<category><![CDATA[lvm]]></category>
		<category><![CDATA[xen]]></category>

		<guid isPermaLink="false">http://web-developer.sitecritic.net/?p=353</guid>
		<description><![CDATA[Resizing a lvm partition is straight forward if it doesn&#8217;t contain a partition table. Simply do a:
lvresize -L disksize /dev/vg/lv
resize2fs /dev/vg/lv
If it is running a virtual machine like xen with a partition table, how to resize the domU, whether to shutdown domU or not depends largely on the partiton structure. In centos, if you do [...]]]></description>
		<wfw:commentRss>http://www.azhowto.com/2009/02/06/how-to-resize-lvm-running-xen-explained-part-1-increase-disk-size/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Careful when running DNS Service in a virtual machine</title>
		<link>http://www.azhowto.com/2009/02/04/careful-when-running-dns-service-in-a-virtual-machine/</link>
		<comments>http://www.azhowto.com/2009/02/04/careful-when-running-dns-service-in-a-virtual-machine/#comments</comments>
		<pubDate>Wed, 04 Feb 2009 02:32:21 +0000</pubDate>
		<dc:creator>bpeh</dc:creator>
				<category><![CDATA[Think Linux]]></category>
		<category><![CDATA[Think Networking]]></category>
		<category><![CDATA[dns]]></category>
		<category><![CDATA[virtual machines]]></category>

		<guid isPermaLink="false">http://web-developer.sitecritic.net/?p=329</guid>
		<description><![CDATA[There are things that might have been overlooked. If you run dns in a virtual machine, all other machines will attempt to connect to it to resolve domain names. What if DomO (parent machine) goes down? Not a good idea to run DNS in virtual machines; need to be very careful if you do.
Parent machine [...]]]></description>
		<wfw:commentRss>http://www.azhowto.com/2009/02/04/careful-when-running-dns-service-in-a-virtual-machine/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>why linux is greener than windows</title>
		<link>http://www.azhowto.com/2009/01/24/why-linux-is-greener-than-windows/</link>
		<comments>http://www.azhowto.com/2009/01/24/why-linux-is-greener-than-windows/#comments</comments>
		<pubDate>Sat, 24 Jan 2009 12:59:02 +0000</pubDate>
		<dc:creator>bpeh</dc:creator>
				<category><![CDATA[Think Linux]]></category>
		<category><![CDATA[Think Networking]]></category>

		<guid isPermaLink="false">http://web-developer.sitecritic.net/?p=276</guid>
		<description><![CDATA[I came across an interesting article:
http://www.networkworld.com/research/2008/060908-green-windows-linux.html
I was curious why linux consumes 12% less power than windows on the same hardware.
&#8220;There are three states to these Windows power plans – Power Savings, Balanced and High Performance – which are selected through    the Windows Control Panel Power Settings options. These options can also become [...]]]></description>
		<wfw:commentRss>http://www.azhowto.com/2009/01/24/why-linux-is-greener-than-windows/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Xen Guest, Dom U &#8211; dont use LVM</title>
		<link>http://www.azhowto.com/2008/11/26/xen-guest-dom-u-dont-use-lvm/</link>
		<comments>http://www.azhowto.com/2008/11/26/xen-guest-dom-u-dont-use-lvm/#comments</comments>
		<pubDate>Wed, 26 Nov 2008 02:17:16 +0000</pubDate>
		<dc:creator>bpeh</dc:creator>
				<category><![CDATA[Think Linux]]></category>
		<category><![CDATA[Think Networking]]></category>
		<category><![CDATA[DomU]]></category>
		<category><![CDATA[lvm]]></category>
		<category><![CDATA[xen]]></category>

		<guid isPermaLink="false">http://web-developer.sitecritic.net/?p=155</guid>
		<description><![CDATA[I dont see any reason why one should use lvm in xen guest. The whole idea of using lvm is to have the ability to resize disk size easily and resizing a xen guest can be done easily without using LVM. Actually, having LVM in xen guest complicates the process of resizing&#8230; You can google [...]]]></description>
		<wfw:commentRss>http://www.azhowto.com/2008/11/26/xen-guest-dom-u-dont-use-lvm/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>10 Things that System Administrators should Know</title>
		<link>http://www.azhowto.com/2008/10/21/10-things-that-system-administrators-should-know/</link>
		<comments>http://www.azhowto.com/2008/10/21/10-things-that-system-administrators-should-know/#comments</comments>
		<pubDate>Tue, 21 Oct 2008 22:49:47 +0000</pubDate>
		<dc:creator>bpeh</dc:creator>
				<category><![CDATA[Blog]]></category>
		<category><![CDATA[Think Network Monitoring]]></category>
		<category><![CDATA[Think Networking]]></category>
		<category><![CDATA[system administration]]></category>

		<guid isPermaLink="false">http://web-developer.sitecritic.net/2008/10/21/10-things-that-system-administrators-should-know/</guid>
		<description><![CDATA[I got inspired by the 10 commandments for system administrators from http://www.linux.com/feature/44315
This is my list:
1. Be WARY about COST CUTTING.
(cheap hardware, cables, labour)
2. KNOW THE NETWORK well.
(keep network, routing diagrams, track public and private IP, label cables if necessary)
3. ESTABLISH STRONG SECURITY POLICIES in the system.
(Security Access, File Permission, good password choice, encryption, SetUID, LDAP, [...]]]></description>
		<wfw:commentRss>http://www.azhowto.com/2008/10/21/10-things-that-system-administrators-should-know/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
	</channel>
</rss>
