<?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>unsharpTech &#187; Ubuntu</title>
	<atom:link href="http://unsharptech.com/category/linux/ubuntu/feed/" rel="self" type="application/rss+xml" />
	<link>http://unsharptech.com</link>
	<description>when the bleeding edge just doesn&#039;t cut it</description>
	<lastBuildDate>Mon, 01 Aug 2011 03:54:28 +0000</lastBuildDate>
	<language>en</language>
	<sy:updatePeriod>hourly</sy:updatePeriod>
	<sy:updateFrequency>1</sy:updateFrequency>
	<generator>http://wordpress.org/?v=3.3.1</generator>
		<item>
		<title>Fix slow connections to Ubuntu SSH servers</title>
		<link>http://unsharptech.com/2009/04/11/fix-slow-connections-to-ubuntu-ssh-servers/</link>
		<comments>http://unsharptech.com/2009/04/11/fix-slow-connections-to-ubuntu-ssh-servers/#comments</comments>
		<pubDate>Sun, 12 Apr 2009 06:18:16 +0000</pubDate>
		<dc:creator>sam</dc:creator>
				<category><![CDATA[dot.help Lab]]></category>
		<category><![CDATA[Fixes]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Notes]]></category>
		<category><![CDATA[Ubuntu]]></category>

		<guid isPermaLink="false">http://unsharptech.com/?p=187</guid>
		<description><![CDATA[As of Ubuntu 8.10 and older, connections to SSH servers with default configs can be annoyingly slow. This is because the OpenSSH daemon uses DNS to run a reverse lookup on the client to be sure that they aren&#8217;t faking their hostname. You can disable most look-ups by implementing the following setting: As root edit [...]]]></description>
			<content:encoded><![CDATA[<p>As of Ubuntu 8.10 and older, connections to SSH servers with default configs can be annoyingly slow. This<a href="http://unsharptech.com/wp-content/uploads/terminal.png" rel="lightbox[187]"><img class="alignright size-full wp-image-216" title="terminal" src="http://unsharptech.com/wp-content/uploads/terminal.png" alt="terminal" width="48" height="48" /></a> is because the OpenSSH daemon uses DNS to run a reverse lookup on the client to be sure that they aren&#8217;t faking their hostname. You can disable most look-ups by implementing the following setting:</p>
<p>As root edit &#8220;<code>/etc/ssh/sshd_config</code>&#8221; and add the line &#8220;<code>UseDNS no</code>&#8220;.</p>
<p>This can also be done by running the following command:</p>
<pre class="brush: php">sudo echo &quot;UseDNS no&quot; &gt;&gt; /etc/ssh/sshd_config</pre>
<p>Sources:</p>
<blockquote><p>This issue is <a href="http://www.openssh.org/faq.html#3.3">documented at OpenSSH.org</a></p>
<p>Fix and more details available at: <a href="http://tech.waltco.biz/2008/02/02/ssh-slow-to-connect-in-ubuntu-710-gutsy-gibbon/">http://tech.waltco.biz/2008/02/02/ssh-slow-to-connect-in-ubuntu-710-gutsy-gibbon/</a></p></blockquote>
]]></content:encoded>
			<wfw:commentRss>http://unsharptech.com/2009/04/11/fix-slow-connections-to-ubuntu-ssh-servers/feed/</wfw:commentRss>
		<slash:comments>8</slash:comments>
		</item>
		<item>
		<title>Atheros Wireless in Ubuntu 8.10 Intrepid Ibex</title>
		<link>http://unsharptech.com/2008/10/31/atheros-wireless-in-ubuntu-810-intrepid-ibex/</link>
		<comments>http://unsharptech.com/2008/10/31/atheros-wireless-in-ubuntu-810-intrepid-ibex/#comments</comments>
		<pubDate>Fri, 31 Oct 2008 17:38:55 +0000</pubDate>
		<dc:creator>sam</dc:creator>
				<category><![CDATA[Fixes]]></category>
		<category><![CDATA[Guides]]></category>
		<category><![CDATA[Hardware]]></category>
		<category><![CDATA[How2]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Notes]]></category>
		<category><![CDATA[Ubuntu]]></category>

		<guid isPermaLink="false">http://unsharptech.com/?p=115</guid>
		<description><![CDATA[Did a fresh install + updates of Kubuntu 8.10 on a customer&#8217;s laptop and had no wireless even though it&#8217;s an Atheros chipset. UPDATE: I recently tried this method on a similar Acer laptop with Ubuntu 8.10 AMD64 with no results. After searching, I used another guide that makes compiling madwifi from source simple. If [...]]]></description>
			<content:encoded><![CDATA[<p>Did a fresh install + updates of Kubuntu 8.10 on a customer&#8217;s laptop and had no wireless even though it&#8217;s an Atheros chipset.</p>
<p><span id="more-115"></span></p>
<p><strong>UPDATE:</strong></p>
<blockquote><p>I recently tried this method on a similar Acer laptop with Ubuntu 8.10 AMD64 with no results. After searching, I used <a href="http://blog.hyperandy.com/2008/11/01/atheros-ar242x-ubuntu-810-ibex/">another guide</a> that makes compiling madwifi from source simple. If my method doesn&#8217;t work for you, remove the backports modules:</p>
<pre class="brush: bash">sudo apt-get remove linux-backports-modules-intrepid-generic
</pre>
<p>then reboot, and try out the below guide. Thank you Hyperandy.</p>
<p>Link: <a href="http://blog.hyperandy.com/2008/11/01/atheros-ar242x-ubuntu-810-ibex/">http://blog.hyperandy.com/2008/11/01/atheros-ar242x-ubuntu-810-ibex/</a></p></blockquote>
<p>Hardware:</p>
<ul>
<li>Laptop: Acer Aspire 4520</li>
<li>Wireless Card: Atheros AR242x Communications Inc. 802.11abg</li>
</ul>
<pre class="brush: bash">lspci | grep &quot;Atheros&quot;
07:00.0 Ethernet controller: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter (rev 01)
</pre>
<p>Resolution:</p>
<pre class="brush: bash">sudo apt-get install linux-backports-modules-intrepid-generic
</pre>
<p>After above install completes, <strong>reboot</strong>, then open up the Hardware Drivers manager (<strong>jockey-gtk</strong> or <strong>jockey-kde</strong>) and disable <strong>&#8220;Support for Atheros 802.11 wireless LAN cards&#8221;</strong> and make sure that &#8220;<strong>Support for 5xxx series of Atheros 802.11 wireless LAN cards</strong>&#8221; is enabled then <strong>reboot</strong>. You may need to reboot to see both drivers in the Hardware Drivers manager.</p>
<p>This is at least a temporary fix, you&#8217;ll end up with the ath5k drivers- hopefully a stable universal method for Atheros card support will become available soon.</p>
<p>Source:<br />
<a href="http://www.ubuntu.com/getubuntu/releasenotes/810">8.10 Release Notes | Ubuntu</a></p>
]]></content:encoded>
			<wfw:commentRss>http://unsharptech.com/2008/10/31/atheros-wireless-in-ubuntu-810-intrepid-ibex/feed/</wfw:commentRss>
		<slash:comments>64</slash:comments>
		</item>
		<item>
		<title>Disable Recent Documents in Gnome 2.22.3</title>
		<link>http://unsharptech.com/2008/08/08/disable-recent-documents-in-gnome-2223/</link>
		<comments>http://unsharptech.com/2008/08/08/disable-recent-documents-in-gnome-2223/#comments</comments>
		<pubDate>Fri, 08 Aug 2008 10:45:02 +0000</pubDate>
		<dc:creator>sam</dc:creator>
				<category><![CDATA[Arch]]></category>
		<category><![CDATA[Customization]]></category>
		<category><![CDATA[Fixes]]></category>
		<category><![CDATA[Gnome]]></category>
		<category><![CDATA[How2]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Notes]]></category>
		<category><![CDATA[Ubuntu]]></category>

		<guid isPermaLink="false">http://unsharptech.com/?p=72</guid>
		<description><![CDATA[So even Windows lets you disable the Recent Documents feature, but for some reason Gnome really wants to remember what files you&#8217;ve been messing with. Personally I never use this menu item (usually under Places in the Gnome Main Menu) and find it to be a bit of a privacy concern. Surprisingly enough there are [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://unsharptech.com/wp-content/uploads/menu-no-recent.jpg" rel="lightbox[72]"><img class="alignright size-thumbnail wp-image-73" title="menu-no-recent" src="http://unsharptech.com/wp-content/uploads/menu-no-recent-150x150.jpg" alt="" width="150" height="150" /></a>So even Windows lets you disable the Recent Documents feature, but for some reason Gnome really wants to remember what files you&#8217;ve been messing with. Personally I never use this menu item (usually under <em>Places</em> in the Gnome Main Menu) and find it to be a bit of a privacy concern.</p>
<p>Surprisingly enough there are no documented settings for Recent Documents, not even something in gconf-editor, so people have been going stone age to prevent this functionality. In the past you could change permissions for the file that stores the data in your home directory, but it seems in later versions of Gnome the following is the current method of choice.</p>
<p><span id="more-72"></span></p>
<p><strong>METHOD:</strong></p>
<blockquote><p>Enter the following into a terminal:</p>
<pre class="brush: bash">rm ~/.recently-used.xbel
mkdir ~/.recently-used.xbel</pre>
</blockquote>
<p>When you&#8217;re done, go check your menu and Recent Documents should be grayed out.</p>
<p>This works because the data concerning your recent documents can&#8217;t be written to a directory and the Recent Documents menu item is simply disabled. (I played around with retaining the text file and changing its permissions, but they were eventually always overwritten.)</p>
<p><strong>NOTES:</strong></p>
<blockquote><p>It has been mentioned that you may receive GTK related warnings in the console after applying this, since we did a sort of end-run that&#8217;s kind of expected.</p>
<p>There was another method that involved making the file immutable (<em>sudo chattr +i ~/.recently-used.xbel</em>) but this is only for ext2/ext3 filesystems (I prefer JFS whenever applicable).</p>
<p>There may also be a left over file, <em>~/.recently_used</em> that you can also remove:</p>
<pre class="brush: bash">rm ~/.recently-used</pre>
</blockquote>
<p><strong>SOURCES:</strong></p>
<blockquote><p><a href="http://bbs.archlinux.org/viewtopic.php?pid=212094#p212094">Arch Linux Forums /  Disable Gnome Recent Documents [solved]</a></p>
<p><a href="http://ph.ubuntuforums.com/showthread.php?p=4652216">Disable recent documents &#8211; Ubuntu Forums</a></p></blockquote>
<p>I take no responsibility for coming up with this hack, I just wanted to clearly document it. BTW, this has been a problem since 2005 &gt; <a href="https://bugs.launchpad.net/gnome-panel/+bug/30942">Bug 30942 – Request to add option to disable &#8216;Recent Documents&#8217; lists</a></p>
]]></content:encoded>
			<wfw:commentRss>http://unsharptech.com/2008/08/08/disable-recent-documents-in-gnome-2223/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Praise for eeeXubuntu</title>
		<link>http://unsharptech.com/2008/05/20/praise-for-eeexubuntu/</link>
		<comments>http://unsharptech.com/2008/05/20/praise-for-eeexubuntu/#comments</comments>
		<pubDate>Wed, 21 May 2008 01:42:35 +0000</pubDate>
		<dc:creator>sam</dc:creator>
				<category><![CDATA[Customization]]></category>
		<category><![CDATA[Hardware]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Reviews]]></category>
		<category><![CDATA[Ubuntu]]></category>

		<guid isPermaLink="false">http://unsharptech.com/2008/05/20/praise-for-eeexubuntu/</guid>
		<description><![CDATA[So when I first got my Black Asus Eee PC 4G xmas &#8217;07 I pretty much freaked out about all the possibilities but ended up installing my distro of choice, Arch Linux and all the Eee specific hardware support, then it kinda sat&#8230; and sat, until. I recently decided to review the current OS choices [...]]]></description>
			<content:encoded><![CDATA[<p><a title="Inifinite Eee" href="http://unsharptech.com/wp-content/image_00012.jpg" rel="lightbox[31]"><img src="http://unsharptech.com/wp-content/image_00012.thumbnail.jpg" alt="Inifinite Eee" align="right" /></a>So when I first got my Black   <a href="http://en.wikipedia.org/wiki/ASUS_Eee_PC">Asus Eee PC 4G</a> xmas &#8217;07 I pretty much freaked out about all the possibilities but ended up installing my distro of choice, <a href="http://wiki.archlinux.org/index.php/Installing_Arch_Linux_on_the_Asus_EEE_PC">Arch Linux</a> and all the Eee specific hardware support, then it kinda sat&#8230; and sat, until. I recently decided to review the current OS choices available for the Eee and settled on <a href="http://wiki.eeeuser.com/ubuntu:eeexubuntu:home">eeeXubuntu</a> as the best candidate &#8211; clean little Ubuntu based with Eee hardware support out of the box. Besides, I just wanted to use my Eee not fiddle with the thing (I had my fill a few months ago, it was fun though).</p>
<p><span id="more-31"></span></p>
<p>I downloaded the <a href="http://wiki.eeeuser.com/ubuntu:eeexubuntu:home#download_it">Live CD .iso</a> and booted it in VMware Server on an XP host, then plugged in a 1GB Corsair Voyager USB drive and enabled it for the VM so the Live CD virtual machine would have access. From there I just followed the guide on the <a href="http://wiki.eeeuser.com/ubuntu:eeexubuntu:home">eeeuser.com wiki</a> and ran the <a href="http://wiki.eeeuser.com/ubuntu:eeexubuntu:home#detailed_usb_installer_instructions">USB drive install</a> script, booted off the USB stick on the Eee and BAM! this s**t was fast! I was super impressed, I mean Arch is a KISS fast distro but eeeXubuntu destroyed my Arch install by comparison.</p>
<p>Anyways, after playing on the USB stick live OS for a while I opted to install, one partition at &#8216;/&#8217; (no swap) and <a href="http://en.wikipedia.org/wiki/Hans_Reiser#The_Nina_Reiser_Case">MurderFS.</a>.. I mean ReiserFS. The current eeeXubuntu Live CD is based on <a href="http://www.xubuntu.org/">Xubuntu </a>7.10 while the current version of Xubuntu is Hardy Heron 8.04 LTS but I think there&#8217;s a guide on the eeeuser Wiki to run the upgrade manager to get to 8.04.. I&#8217;m cool with 7.10 for now though.</p>
<p>Wireless worked with NetworkManager Applet OUT OF THE BOX, thank god. I followed the guide (again on the eeeuser.com Wiki) to install <a href="http://wiki.eeeuser.com/ubuntu?s=ucview#webcam_and_skype">ucview</a> to have some fun w/ the webcam (<a href="http://live.gnome.org/Cheese">cheese</a> was giving me some issues I couldn&#8217;t resolve).</p>
<p>DUDE, this thing flies! General responsiveness is awesome by my standards, and I&#8217;ve run all major operating systems on a huge range of hardware with all sorts of configs (let&#8217;s not get into that). I can even freakin&#8217; watch the bigger Flash vids that straight up refused to work on my Arch install. Don&#8217;t think I&#8217;m bashing Arch, heck no,  I like to think I have a darn good understanding of the strengths and weaknesses of Ubuntu based distros vs. Arch Linux and bottom line is I believe that eeeXubuntu is just a super well-put-together distro for the Eee. Color me impressed. But maybe Ubuntu or Debian in general is better suited to the Eee platform?.. I don&#8217;t care cause I&#8217;m more than happy with eeeXubuntu.</p>
<p>Gripes? out of the box it likes to complain about my battery capacity there&#8217;s a bit in the <a href="http://wiki.eeeuser.com/ubuntu:eeexubuntu:home">eeeuser.com Wiki</a> about setting up ACPI correctly &#8211; I&#8217;ll fix it soon / when I get pissed. Whatever, this is sweet.</p>
<p>I had to release my excitement so I spewed this out, comments welcome.<br />
<a href="http://wiki.eeeuser.com/ubuntu:eeexubuntu:home">eeeuser.com Wiki eeeXubuntu Home</a></p>
<p><a href="http://wiki.eeeuser.com/ubuntu:eeexubuntu:customization">eeeuser.com Wiki: Customize eeeXubuntu </a></p>
]]></content:encoded>
			<wfw:commentRss>http://unsharptech.com/2008/05/20/praise-for-eeexubuntu/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>The REAL Way to Change Lost Passwords in Ubuntu</title>
		<link>http://unsharptech.com/2007/11/11/the-real-way-to-change-lost-passwords-in-ubuntu/</link>
		<comments>http://unsharptech.com/2007/11/11/the-real-way-to-change-lost-passwords-in-ubuntu/#comments</comments>
		<pubDate>Sun, 11 Nov 2007 09:33:37 +0000</pubDate>
		<dc:creator>sam</dc:creator>
				<category><![CDATA[Fixes]]></category>
		<category><![CDATA[How2]]></category>
		<category><![CDATA[Linux]]></category>
		<category><![CDATA[Notes]]></category>
		<category><![CDATA[Ubuntu]]></category>

		<guid isPermaLink="false">http://unsharptech.com/2007/11/11/the-real-way-to-change-lost-passwords-in-ubuntu/</guid>
		<description><![CDATA[If you lose any of your user passwords &#8211; including root you can change your password booting into single user mode. What you aren&#8217;t likely to find off the bat is the proper instructions to do it. They are out there, but chances are you will have to dig a little after some frustration. The [...]]]></description>
			<content:encoded><![CDATA[<p>If you lose any of your user passwords &#8211; including <em>root</em> you can change your password booting into single user mode. What you aren&#8217;t likely to find off the bat is the proper instructions to do it. They are out there, but chances are you will have to dig a little after some frustration. The main differece between all those super simple solutions and the one mentioned here is that you need to remount the OS drive in order to properly write your changes. This method has worked with the last three major releases of Ubuntu including <em>Feisty</em>. So, here&#8217;s the procedure&#8230;</p>
<p><span id="more-8"></span></p>
<blockquote><p><strong>Scroll down for simplified instructions!</strong></p></blockquote>
<ol>
<li>Reboot, when the message from GRUB comes up, hit <em>Escape</em> to view the boot menu.</li>
<li>Scroll down to the first like with &#8220;Recovery Mode&#8221; in the title ane hit &#8220;e&#8221; to edit that boot line.</li>
<li>Select the like that starts with &#8220;kernel&#8221;, hit &#8220;e&#8221; to edit.</li>
<li>At the end of the line, the option &#8220;single&#8221; should already be there, leave a space after single and add &#8220;init=/bin/bash&#8221; this makes it so that you immediately are dumped to a root command line.</li>
<li>Hit<em> Enter</em>, then &#8220;b&#8221; to boot. Wait to boot and be left at a root console &#8211; it will look like &#8220;<em>root@(none):/#</em>&#8220;<em>.</em></li>
<li>Remount the OS partition so that it&#8217;s writable (in this example &#8220;hda1&#8243; &#8211; maybe &#8220;sda1&#8243; or otherwise) with the command &#8220;mount /dev/hda1/ -o remount,rw&#8221;</li>
<li>From there you can issue the command &#8220;passwd &lt;username&gt;&#8221; or just &#8220;passwd&#8221; for the root user password and you can enter the new password for the user and reboot.</li>
</ol>
<p><strong>Simplified instructions:</strong></p>
<ol>
<li><span class="postbody">Hit escape to enter GRUB menu.</span></li>
<li><span class="postbody">Hit &#8220;e&#8221; on the first recovery boot line.</span></li>
<li><span class="postbody">Select the line beginning with &#8220;kernel&#8221; and hit &#8220;e&#8221;</span></li>
<li><span class="postbody">Leave a space after &#8220;single&#8221; and add &#8220;init=/bin/bash&#8221;</span></li>
<li><span class="postbody">Hit<em> Enter</em> then &#8220;b&#8221; to boot. </span></li>
<li><span class="postbody">Wait to boot and be dumped at a root console.</span></li>
<li><span class="postbody">Remount the OS partition &#8220;mount /dev/hda1 / -o remount,rw&#8221;</span></li>
<li>Use &#8220;passwd &lt;username&gt;&#8221; to change the user password .</li>
<li>Reboot.</li>
</ol>
<p>I take no credit for this procedure, I definitely wouldn&#8217;t be able to figure that all out on my own.</p>
]]></content:encoded>
			<wfw:commentRss>http://unsharptech.com/2007/11/11/the-real-way-to-change-lost-passwords-in-ubuntu/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>A4 Tech Compact Multimedia X-Slim Keyboard</title>
		<link>http://unsharptech.com/2007/11/11/a4_tech_compact_multimedia_xslim_keyboard/</link>
		<comments>http://unsharptech.com/2007/11/11/a4_tech_compact_multimedia_xslim_keyboard/#comments</comments>
		<pubDate>Sun, 11 Nov 2007 09:29:47 +0000</pubDate>
		<dc:creator>sam</dc:creator>
				<category><![CDATA[Customization]]></category>
		<category><![CDATA[Reviews]]></category>
		<category><![CDATA[Ubuntu]]></category>

		<guid isPermaLink="false">http://unsharptech.com/2007/11/11/3/</guid>
		<description><![CDATA[So I had $20 to spend on a new mouse + keyboard combo over at Newegg and ended up with a cheap Logitech mouse and a black A4 Tech Slim Keyboard. I picked up this little item for $10 (Newegg product page) because I love the short key travel and feedback of laptop keyboards. So [...]]]></description>
			<content:encoded><![CDATA[<p>So I had $20 to spend on a new mouse + keyboard combo over at Newegg and ended up with a cheap Logitech mouse and a black A4 Tech Slim Keyboard. I picked up this little item for $10 (<a href="http://www.newegg.com/Product/Product.aspx?Item=N82E16823141019" title="Newegg Product Page">Newegg product page</a>) because I love the short key travel and feedback of laptop keyboards.</p>
<p><a href="http://unsharptech.com/2007/11/11/a4_tech_compact_multimedia_xslim_keyboard/"><img src="http://unsharptech.com/wp-content/a4keyboard.jpg" alt="A4 Keyboard" /></a></p>
<p><span id="more-3"></span></p>
<p>So I got this thing, first impressions were: it&#8217;s pretty solid, nice finish (laser engraved keys) , likin&#8217; the USB + PS/2 adapter, full-size <em>Backspace</em> key, and of course, it&#8217;s small. When I actually started typing on this thing I realized that the majority of the keys were actually larger than those on a standard full-size keyboard &#8211; so I ended up not reaching far enough for the next key and dropping typos like bombs. After a while it really wasn&#8217;t that hindering, just surprising, it being a compact keyboard and all.</p>
<p><strong>Final notes: </strong>I&#8217;m confident that I will get over my fumbling and am not disappointed (especially for $10) . Besides, it looks kinda cool &#8211; like it belongs at a terminal or something.<br />
I don&#8217;t really miss the 10-key pad, but I often find myself unknowingly reaching for the non-existent second <em>Enter</em> key normally present at the bottom right corner of full-size boards.  Although I really don&#8217;t care about the functionality of the <em>Hot Keys</em> located at the top, in Ubuntu Feisty 7.04 only the Email key worked for me, launching my default mail client Thunderbird.</p>
]]></content:encoded>
			<wfw:commentRss>http://unsharptech.com/2007/11/11/a4_tech_compact_multimedia_xslim_keyboard/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
	</channel>
</rss>

