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<channel>
	<title>Admins eHow</title>
	<atom:link href="http://www.adminsehow.com/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.adminsehow.com</link>
	<description>Guides and Tricks for Administrators</description>
	<lastBuildDate>Tue, 17 Apr 2012 07:33:48 +0000</lastBuildDate>
	<language>en</language>
	<sy:updatePeriod>hourly</sy:updatePeriod>
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		<item>
		<title>How to create a mirror of a site using wget</title>
		<link>http://www.adminsehow.com/2012/04/how-to-create-a-mirror-of-a-site-using-wget/</link>
		<comments>http://www.adminsehow.com/2012/04/how-to-create-a-mirror-of-a-site-using-wget/#comments</comments>
		<pubDate>Tue, 17 Apr 2012 07:33:48 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[General]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[mirror]]></category>
		<category><![CDATA[offline]]></category>
		<category><![CDATA[site]]></category>
		<category><![CDATA[wget]]></category>

		<guid isPermaLink="false">http://www.adminsehow.com/?p=636</guid>
		<description><![CDATA[First you need to make sure you have the latest version of wget, some distros are still being released with older versions of wget which has some bugs regarding mirroring functionality. currently the latest version is 1.13.4, so if you don&#8217;t have the latest version, you can download and build it from following link : [...]]]></description>
			<content:encoded><![CDATA[<p>First you need to make sure you have the latest version of wget, some distros are still being released with older versions of wget which has some bugs regarding mirroring functionality. currently the latest version is 1.13.4, so if you don&#8217;t have the latest version, you can download and build it from following link :</p>
<pre class="brush: plain; title: ; notranslate">ftp://ftp.gnu.org/gnu/wget/</pre>
<p>after building the wget, make sure the latest version is being used :</p>
<pre class="brush: bash; title: ; notranslate">wget -V</pre>
<p>output :</p>
<pre class="brush: plain; title: ; notranslate">
GNU Wget 1.13.4 built on linux-gnu.

+digest +https +ipv6 -iri +large-file +nls -ntlm +opie +ssl/gnutls 

Wgetrc:
    /usr/local/etc/wgetrc (system)
Locale: /usr/local/share/locale
Compile: gcc -DHAVE_CONFIG_H -DSYSTEM_WGETRC=&quot;/usr/local/etc/wgetrc&quot;
    -DLOCALEDIR=&quot;/usr/local/share/locale&quot; -I. -I../lib -I../lib -O2
    -Wall
Link: gcc -O2 -Wall -lgnutls -lgcrypt -lgpg-error -lz -lrt ftp-opie.o
    gnutls.o ../lib/libgnu.a 

Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
&lt;http://www.gnu.org/licenses/gpl.html&gt;.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Originally written by Hrvoje Niksic &lt;hniksic@xemacs.org&gt;.
Please send bug reports and questions to &lt;bug-wget@gnu.org&gt;.
</pre>
<p>OK, you are good to go now, just execute the following command and relax <img src='http://www.adminsehow.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
<pre class="brush: bash; title: ; notranslate">wget -mkp -e robots=off http://site</pre>
]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>My favorite smartphone wallpapers</title>
		<link>http://www.adminsehow.com/2012/04/my-favorite-smartphone-wallpapers/</link>
		<comments>http://www.adminsehow.com/2012/04/my-favorite-smartphone-wallpapers/#comments</comments>
		<pubDate>Wed, 11 Apr 2012 18:36:08 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Android]]></category>
		<category><![CDATA[General]]></category>
		<category><![CDATA[galaxy]]></category>
		<category><![CDATA[mobile]]></category>
		<category><![CDATA[phone]]></category>
		<category><![CDATA[SII]]></category>
		<category><![CDATA[smartphone]]></category>
		<category><![CDATA[wallpaper]]></category>

		<guid isPermaLink="false">http://www.adminsehow.com/?p=625</guid>
		<description><![CDATA[These are my favorite wallpapers on my SGSII, I hope you enjoy them You can download them here : SGSII-Wallpapers]]></description>
			<content:encoded><![CDATA[<p>These are my favorite wallpapers on my SGSII, I hope you enjoy them <img src='http://www.adminsehow.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
<table>
<tr>
<td><a href="http://www.adminsehow.com/wp-content/uploads/2012/04/wallpaper_escape.jpg"><img src="http://www.adminsehow.com/wp-content/uploads/2012/04/wallpaper_escape-150x150.jpg" alt="" title="Motorcycle Details" width="150" height="150" class="alignnone size-thumbnail wp-image-626" /></a></td>
<td><a href="http://www.adminsehow.com/wp-content/uploads/2012/04/wallpaper_kepler.jpg"><img src="http://www.adminsehow.com/wp-content/uploads/2012/04/wallpaper_kepler-150x150.jpg" alt="" title="wallpaper_kepler" width="150" height="150" class="alignnone size-thumbnail wp-image-628" /></a></td>
<td><a href="http://www.adminsehow.com/wp-content/uploads/2012/04/wallpaper_leaf.jpg"><img src="http://www.adminsehow.com/wp-content/uploads/2012/04/wallpaper_leaf-150x150.jpg" alt="" title="wallpaper_leaf" width="150" height="150" class="alignnone size-thumbnail wp-image-629" /></a></td>
<td><a href="http://www.adminsehow.com/wp-content/uploads/2012/04/wallpaper_noir.jpg"><img src="http://www.adminsehow.com/wp-content/uploads/2012/04/wallpaper_noir-150x150.jpg" alt="" title="wallpaper_noir" width="150" height="150" class="alignnone size-thumbnail wp-image-630" /></a></td>
</table>
</tr>
<p>You can download them here : <a href='http://www.adminsehow.com/wp-content/uploads/2012/04/SGSII-Wallpapers.zip'>SGSII-Wallpapers</a></p>
]]></content:encoded>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>How to make (remount) system partition writable in android</title>
		<link>http://www.adminsehow.com/2012/04/how-to-make-remount-system-partition-writable-in-android/</link>
		<comments>http://www.adminsehow.com/2012/04/how-to-make-remount-system-partition-writable-in-android/#comments</comments>
		<pubDate>Sat, 07 Apr 2012 07:51:45 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Android]]></category>
		<category><![CDATA[android]]></category>
		<category><![CDATA[mount]]></category>
		<category><![CDATA[rw]]></category>
		<category><![CDATA[system]]></category>
		<category><![CDATA[writable]]></category>
		<category><![CDATA[write]]></category>

		<guid isPermaLink="false">http://www.adminsehow.com/?p=621</guid>
		<description><![CDATA[Very useful command which should work on all versions of android :]]></description>
			<content:encoded><![CDATA[<p>Very useful command which should work on all versions of android :</p>
<pre class="brush: bash; title: ; notranslate">grep &quot; /system &quot; /proc/mounts | awk '{system(&quot;mount -o rw,remount -t &quot;$3&quot; &quot;$1&quot; &quot;$2)}'</pre>
]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Simple Timer Utility</title>
		<link>http://www.adminsehow.com/2012/03/simple-timer-utility/</link>
		<comments>http://www.adminsehow.com/2012/03/simple-timer-utility/#comments</comments>
		<pubDate>Mon, 19 Mar 2012 18:15:25 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[General]]></category>
		<category><![CDATA[countdown]]></category>
		<category><![CDATA[simple]]></category>
		<category><![CDATA[timer]]></category>
		<category><![CDATA[tool]]></category>
		<category><![CDATA[utility]]></category>

		<guid isPermaLink="false">http://www.adminsehow.com/?p=616</guid>
		<description><![CDATA[This is another utility which I wrote for myself use, it is a simple countdown timer which beeps when it reaches zero. You can download it here : Timer]]></description>
			<content:encoded><![CDATA[<p>This is another utility which I wrote for myself use, it is a simple countdown timer which beeps when it reaches zero.<br />
You can download it here : <a href='http://www.adminsehow.com/wp-content/uploads/2012/03/Timer.exe'>Timer</a></p>
]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Realtime mouse position monitor tool</title>
		<link>http://www.adminsehow.com/2012/03/realtime-mouse-position-monitor-tool/</link>
		<comments>http://www.adminsehow.com/2012/03/realtime-mouse-position-monitor-tool/#comments</comments>
		<pubDate>Sun, 11 Mar 2012 17:26:33 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Windows]]></category>
		<category><![CDATA[coordinate]]></category>
		<category><![CDATA[monitor]]></category>
		<category><![CDATA[mouse]]></category>
		<category><![CDATA[position]]></category>
		<category><![CDATA[tool]]></category>
		<category><![CDATA[x]]></category>
		<category><![CDATA[y]]></category>

		<guid isPermaLink="false">http://www.adminsehow.com/?p=612</guid>
		<description><![CDATA[Sometimes very simple tools can not be found on Internet, for a project I needed to monitor mouse coordinates in real time, but I couldnt find anything useful on Internet so I wrote a small utility which displays mouse position (X,Y) on screen. It needs .net framework to be installed on your computer to work. [...]]]></description>
			<content:encoded><![CDATA[<p>Sometimes very simple tools can not be found on Internet, for a project I needed to monitor mouse coordinates in real time, but I couldnt find anything useful on Internet so I wrote a small utility which displays mouse position (X,Y) on screen. It needs .net framework to be installed on your computer to work.<br />
You can download it here : <a href='http://www.adminsehow.com/wp-content/uploads/2012/03/MousePos.exe'>MousePos</a></p>
]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>How to update Adaptec raid driver on Centos &amp; RHEL5</title>
		<link>http://www.adminsehow.com/2012/02/how-to-update-adaptec-raid-driver-on-centos-rhel5/</link>
		<comments>http://www.adminsehow.com/2012/02/how-to-update-adaptec-raid-driver-on-centos-rhel5/#comments</comments>
		<pubDate>Sun, 26 Feb 2012 18:51:25 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[CentOS]]></category>
		<category><![CDATA[General]]></category>
		<category><![CDATA[aacraid]]></category>
		<category><![CDATA[adaptec]]></category>
		<category><![CDATA[driver]]></category>
		<category><![CDATA[raid]]></category>
		<category><![CDATA[rhel]]></category>
		<category><![CDATA[update]]></category>
		<category><![CDATA[upgrade]]></category>

		<guid isPermaLink="false">http://www.adminsehow.com/?p=600</guid>
		<description><![CDATA[Download the driver RPMs from adaptec website, as I have 5805z controller, I downloaded the drivers from here : You will get a file like this : unpack it : to get : install rpm : it will only extract the files to /opt/Adaptec/aacraid : now you have prebuilt module for different kernels, copy the [...]]]></description>
			<content:encoded><![CDATA[<p>Download the driver RPMs from adaptec website, as I have 5805z controller, I downloaded the drivers from here :</p>
<pre class="brush: plain; title: ; notranslate">

http://www.adaptec.com/en-us/support/raid/sas_raid/sas-5805z

http://www.adaptec.com/en-us/downloads/rh/rhel_5/productid=sas-5805z&#038;dn=adaptec+raid+5805z.html
</pre>
<p>You will get a file like this :</p>
<pre class="brush: plain; title: ; notranslate">aacraid_linux_rpms_v1.1.7-28700.tgz</pre>
<p>unpack it :</p>
<pre class="brush: bash; title: ; notranslate">tar zxvf aacraid_linux_rpms_v1.1.7-28700.tgz</pre>
<p>to get :</p>
<pre class="brush: plain; title: ; notranslate">aacraid-1.1.7-28700.rpm</pre>
<p>install rpm :</p>
<pre class="brush: bash; title: ; notranslate">rpm -ivh --force aacraid-1.1.7-28700.rpm</pre>
<p>it will only extract the files to /opt/Adaptec/aacraid :</p>
<pre class="brush: bash; title: ; notranslate">cd /opt/Adaptec/aacraid
mkdir mods
mv aacraid_prebuilt.tgz mods
cd mods
tar zxvf aacraid_prebuilt.tgz
rm *.tgz</pre>
<p>now you have prebuilt module for different kernels, copy the appropriate kernel module to aacraid.ko path, a command like :</p>
<pre class="brush: bash; title: ; notranslate">cp aacraid-2.6.18-238.el5xen-x86_64 /lib/modules/2.6.18-274.18.1.el5xen/kernel/drivers/scsi/aacraid/aacraid.ko</pre>
<p>if you have locate package installed, you can easy find all aacraid.ko files :</p>
<pre class="brush: bash; title: ; notranslate">locate aacraid.ko | xargs -n1 modinfo | grep vers</pre>
<p>when it is complete, reboot the server.</p>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Fix nginx 502 Bad Gateway error</title>
		<link>http://www.adminsehow.com/2012/01/fix-nginx-502-bad-gateway-error/</link>
		<comments>http://www.adminsehow.com/2012/01/fix-nginx-502-bad-gateway-error/#comments</comments>
		<pubDate>Wed, 11 Jan 2012 11:01:13 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[General]]></category>
		<category><![CDATA[502]]></category>
		<category><![CDATA[bad gateway]]></category>
		<category><![CDATA[fastcgi]]></category>
		<category><![CDATA[glype]]></category>
		<category><![CDATA[Nginx]]></category>

		<guid isPermaLink="false">http://www.adminsehow.com/?p=593</guid>
		<description><![CDATA[Today I was getting &#8220;502 Bad Gateway&#8221; on a Glype proxy installation , after digging into the problem I found out it is a problem of nginx fastcgi buffers , here is how to fix it : open /etc/nginx/nginx.conf add the following lines into http section : you config should look like this : restart [...]]]></description>
			<content:encoded><![CDATA[<p>Today I was getting &#8220;502 Bad Gateway&#8221; on a Glype proxy installation , after digging into the problem I found out it is a problem of nginx fastcgi buffers , here is how to fix it :<br />
open /etc/nginx/nginx.conf<br />
add the following lines into http section :</p>
<pre class="brush: plain; title: ; notranslate">
fastcgi_buffers 8 16k;
fastcgi_buffer_size 32k;
</pre>
<p>you config should look like this :</p>
<pre class="brush: plain; title: ; notranslate">
http {
.
.
fastcgi_buffers 8 16k;
fastcgi_buffer_size 32k;
.
.
}
</pre>
<p>restart nginx and fastcgi.</p>
]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Linux Delete Empty Directories (Folders)</title>
		<link>http://www.adminsehow.com/2011/12/linux-delete-empty-directories-folders/</link>
		<comments>http://www.adminsehow.com/2011/12/linux-delete-empty-directories-folders/#comments</comments>
		<pubDate>Fri, 16 Dec 2011 06:01:38 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[CentOS]]></category>
		<category><![CDATA[Debian]]></category>
		<category><![CDATA[General]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[delete]]></category>
		<category><![CDATA[directory]]></category>
		<category><![CDATA[empty]]></category>
		<category><![CDATA[find]]></category>
		<category><![CDATA[folder]]></category>
		<category><![CDATA[remove]]></category>

		<guid isPermaLink="false">http://www.adminsehow.com/?p=589</guid>
		<description><![CDATA[As simple as one single command :]]></description>
			<content:encoded><![CDATA[<p>As simple as one single command :</p>
<pre class="brush: bash; title: ; notranslate">find -type d -empty -delete</pre>
]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>4 Oct 2011, Bad day for iSheeps</title>
		<link>http://www.adminsehow.com/2011/10/4-oct-2011-bad-day-for-isheeps/</link>
		<comments>http://www.adminsehow.com/2011/10/4-oct-2011-bad-day-for-isheeps/#comments</comments>
		<pubDate>Wed, 05 Oct 2011 20:21:02 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Android]]></category>
		<category><![CDATA[Apple]]></category>
		<category><![CDATA[4s]]></category>
		<category><![CDATA[android]]></category>
		<category><![CDATA[apology]]></category>
		<category><![CDATA[iphone]]></category>
		<category><![CDATA[letter]]></category>

		<guid isPermaLink="false">http://www.adminsehow.com/?p=584</guid>
		<description><![CDATA[No doubt, 4th Oct 2011 has been a very bad day for iSheeps, their beloved fruit company left them with a minor upgraded phone after 16 months of waiting and frustration. no wonder why Steve Jobs left the company just a few weeks before new iPhone 4S announcement, he decided to leave the company in [...]]]></description>
			<content:encoded><![CDATA[<p>No doubt, 4th Oct 2011 has been a very bad day for iSheeps, their beloved fruit company left them with a minor upgraded phone after 16 months of waiting and frustration. no wonder why Steve Jobs left the company just a few weeks before new iPhone 4S announcement, he decided to leave the company in glory days. the legend will stay the legend. lambs are to be slaughtered.<br />
I know many iSheeps have decided to leave iSheep camp and join the Android revolution. that&#8217;s a wise decision friends <img src='http://www.adminsehow.com/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' />  welcome to superiority and excellence.<br />
I just found something interesting. compare the following stats , first one belongs to 2009, second one to 2011 :<br />
2009 :<br />
<img src="http://www.adminsehow.com/wp-content/uploads/2011/10/marketshare-comscore-400x282.png" /><br />
2011:<br />
<img src="http://www.blogcdn.com/www.engadget.com/media/2011/08/topsmartphoneplatforms.jpg" alt="" /></p>
<p>As you can see in almost two years Apple has hardly kept its market share and has only grown from %25 to %27. it has happened during the golden age of iPhone 4 ! while Google market share has grown from 5% to 42% ! now you can guess what would happen with current weak embarrassing iPhone 4S ! and this superiority and excellency of Android phones now. I even expect a minus Point Change for Apple market share in next reports.<br />
And I expect some iSheeps send apology letters to me if Google Point Change beats Apple. We will see that happen <img src='http://www.adminsehow.com/wp-includes/images/smilies/icon_biggrin.gif' alt=':D' class='wp-smiley' /> </p>
]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Gateway on a different subnet on Linux</title>
		<link>http://www.adminsehow.com/2011/09/gateway-on-a-different-subnet-on-linux/</link>
		<comments>http://www.adminsehow.com/2011/09/gateway-on-a-different-subnet-on-linux/#comments</comments>
		<pubDate>Mon, 26 Sep 2011 07:50:21 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Debian]]></category>
		<category><![CDATA[General]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[default]]></category>
		<category><![CDATA[different]]></category>
		<category><![CDATA[gateway]]></category>
		<category><![CDATA[SIOCADDRT]]></category>
		<category><![CDATA[subnet]]></category>

		<guid isPermaLink="false">http://www.adminsehow.com/?p=580</guid>
		<description><![CDATA[Theoretically host IP and gateway should be on the same IP subnet. but there are some situations where host IP and gateway subnet are on different subnets. like my situation today. I was assigned two additional IPs for my server by my Data-center, but IPs were from a different subnet compared to server main IP. [...]]]></description>
			<content:encoded><![CDATA[<p>Theoretically host IP and gateway should be on the same IP subnet. but there are some situations where host IP and gateway subnet are on different subnets. like my situation today. I was assigned two additional IPs for my server by my Data-center, but IPs were from a different subnet compared to server main IP. these IPs will work if you set them as additional IPs. but I needed them to create two new VPS&#8217;s on my server with bridged network interface. in this situation additional IPs should serve as main IP address and there is no gateway on same subnet available.<br />
So here are the assumptions :</p>
<p>a.b.c.d is the host IP<br />
e.f.g.h is the gateway IP<br />
a.b.c.d &#038; e.f.g.h are on different subnets.</p>
<p>by default if you try to set gateway by following command :</p>
<pre class="brush: bash; title: ; notranslate">route add default gw e.f.g.h</pre>
<p>you will get this error :</p>
<pre class="brush: plain; title: ; notranslate">SIOCADDRT: No such process</pre>
<p>the trick is simple , first add a route to default gateway itself and then set the default gateway , like this :</p>
<pre class="brush: bash; title: ; notranslate">route add e.f.g.h/32 dev eth0
route add default gw e.f.g.h</pre>
<p>remember you may need to change eth0 to your device name , it may be eth1 or wlan0 or anything.</p>
<p><strong>How to make these route changes persistent ?</strong></p>
<p>For Debian/Ubuntu :<br />
Add the following lines to /etc/network/interfaces :</p>
<pre class="brush: bash; title: ; notranslate">post-up route add e.f.g.h/32 dev eth0
post-up route add default gw e.f.g.h</pre>
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