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	<title>Imaging and a little bit of OSS &#187; vnc</title>
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	<description>Yet another techno blog</description>
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		<title>Exit Ubuntu &#8211; Enter Linux Mint</title>
		<link>http://nuclear-imaging.info/site_content/2011/09/19/exit-ubuntu-enter-linux-mint/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=exit-ubuntu-enter-linux-mint</link>
		<comments>http://nuclear-imaging.info/site_content/2011/09/19/exit-ubuntu-enter-linux-mint/#comments</comments>
		<pubDate>Mon, 19 Sep 2011 19:12:44 +0000</pubDate>
		<dc:creator>slash_boot</dc:creator>
				<category><![CDATA[Linux and OSS]]></category>
		<category><![CDATA[non-OSS]]></category>
		<category><![CDATA[Programming]]></category>
		<category><![CDATA[gnome]]></category>
		<category><![CDATA[graphics]]></category>
		<category><![CDATA[linux mint]]></category>
		<category><![CDATA[ubuntu]]></category>
		<category><![CDATA[unity]]></category>
		<category><![CDATA[vnc]]></category>

		<guid isPermaLink="false">http://nuclear-imaging.info/site_content/?p=381</guid>
		<description><![CDATA[The latest version of Ubuntu is heavily based upon Unity environment. Unfortunately Unity has no track record of playing nice with existing gnome programs. For network applications such as VNC, Unity crashes the program with whole bunch of errors. These crashes are observed occasionally in the Ubuntu 11.04 (Natty Narwhal) release, and most certainly in <a href='http://nuclear-imaging.info/site_content/2011/09/19/exit-ubuntu-enter-linux-mint/'>[...]</a>]]></description>
			<content:encoded><![CDATA[<p>The latest version of Ubuntu is heavily based upon Unity environment. Unfortunately Unity has no track record of playing nice with existing gnome programs. For network applications such as VNC, Unity crashes the program with whole bunch of errors. These crashes are observed occasionally in the Ubuntu 11.04 (Natty Narwhal) release, and most certainly in the latest beta 1 release of Ubuntu 11.10 (Oneiric Ocelot).</p>
<p>If you have gotten comfortable with Ubuntu and want to continue using Gnome as the main environment, you can do so by using Linux Mint 11 (Katya). It has the same repositories as Ubuntu and you can even use the ubuntu-restricted-extras and build-essential packages which lets you obtain some of the fonts, codecs and libraries that Ubuntu fetches for you.</p>
<p style="text-align: center;"><a href="http://nuclear-imaging.info/site_content/2011/09/19/exit-ubuntu-enter-linux-mint/linux-mint/" rel="attachment wp-att-385"><img class="aligncenter size-full wp-image-385" style="border: 1px solid black; margin: 1px;" title="linux-mint" src="http://nuclear-imaging.info/site_content/wp-content/uploads/2011/09/linux-mint.png" alt="" width="200" height="200" /></a></p>
<p>Ubuntu is starting to put more emphasis on making their release into an eye-candy, at the cost of reduced functionality. Having used Ubuntu since Dapper Drake days, its sad to ditch it for another distro. IMO Ubuntu 10.04 was the cleanest distro they put out &#8211; things have been going downhill after that. Linux Mint on the other hand picked up at the point when Ubuntu started to go dysfunctional. It has everything that Ubuntu should have been. There isn&#8217;t much to write about Mint 11. Its very similar to Ubuntu 10.04, has a newer kernel 2.6.38.xx, clean graphics, and the same repositories as Ubuntu. The transition is very easy, and things look a lot more neater in Mint.</p>
<p>To recap: If you are currently using Ubuntu and are afraid to upgrade to the 11.10 release, your fear is quite justified. Make a backup of your /home folder and go for a clean install of Linux Mint instead. I moved to Mint about a month ago and have had a rather smooth sailing so far.</p>
]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>VNC server setup for Ubuntu 11.04 (Natty Narwhal)</title>
		<link>http://nuclear-imaging.info/site_content/2011/05/11/vnc-server-setup-for-ubuntu-11-04-natty-narwhal/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=vnc-server-setup-for-ubuntu-11-04-natty-narwhal</link>
		<comments>http://nuclear-imaging.info/site_content/2011/05/11/vnc-server-setup-for-ubuntu-11-04-natty-narwhal/#comments</comments>
		<pubDate>Thu, 12 May 2011 00:26:07 +0000</pubDate>
		<dc:creator>slash_boot</dc:creator>
				<category><![CDATA[Linux and OSS]]></category>
		<category><![CDATA[install]]></category>
		<category><![CDATA[setup]]></category>
		<category><![CDATA[ssh]]></category>
		<category><![CDATA[ssh server]]></category>
		<category><![CDATA[ubuntu]]></category>
		<category><![CDATA[ubuntu 11.04]]></category>
		<category><![CDATA[vnc]]></category>
		<category><![CDATA[vnc4server]]></category>
		<category><![CDATA[vncserver]]></category>
		<category><![CDATA[vncviewer]]></category>

		<guid isPermaLink="false">http://nuclear-imaging.info/site_content/?p=375</guid>
		<description><![CDATA[For the first time I was able to get VNC to work with Ubuntu with Gnome session instead of a xterm on gray background. The steps involved were exactly the same as I was following earlier, with one exception: the setup of xstartup in the ~/.vnc folder. For your xstartup file in ~/.vnc (the &#8220;.vnc&#8221; <a href='http://nuclear-imaging.info/site_content/2011/05/11/vnc-server-setup-for-ubuntu-11-04-natty-narwhal/'>[...]</a>]]></description>
			<content:encoded><![CDATA[<p>For the first time I was able to get VNC to work with Ubuntu with  Gnome session instead of a xterm on gray background. The steps involved  were exactly the same as I was following earlier, with one exception:   the setup of xstartup in the ~/.vnc folder.</p>
<blockquote><p>For your xstartup file in ~/.vnc (the &#8220;.vnc&#8221; folder in</p>
<p>your home directory), you need the following:</p>
<p>#&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;</p>
<p>#!/bin/sh</p>
<p># Uncomment the following two lines for normal desktop:</p>
<p># unset SESSION_MANAGER</p>
<p># exec /etc/X11/xinit/xinitrc</p>
<p>[ -x /etc/vnc/xstartup ] &amp;&amp; exec /etc/vnc/xstartup</p>
<p>[ -r $HOME/.Xresources ] &amp;&amp; xrdb $HOME/.Xresources</p>
<p>xsetroot -solid grey</p>
<p>vncconfig -iconic &amp;</p>
<p>xterm -geometry 80&#215;24+10+10 -ls -title &#8220;$VNCDESKTOP Desktop&#8221; &amp;</p>
<p>gnome-session  &amp;</p>
<p># twm &amp;</p>
<p>#&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;</p>
<p>instead of uncommenting the lines as the script suggests, you change  the window manager to gnome-session</p>
<p>make sure restart vnc4server</p>
</blockquote>
<p>The line which got Gnome working was &#8220;gnome-session &amp;&#8221;</p>
<p>========================================</p>
<p>Now for all the steps involved (works in Karmic Koala Alpha 2, Ubuntu  9.10, kernel 2.6.30-10)</p>
<p>1. Install ssh server, ssh client, VNC viewer, VNC server, and xinetd</p>
<blockquote><p>sudo apt-get install openssh-server openssh-client  vnc4server xinetd  vncviewer</p>
</blockquote>
<p>2. Setup the ssh password for your login</p>
<blockquote><p>ssh-keygen</p>
</blockquote>
<p>3. Test out the ssh server by typing in</p>
<blockquote><p>ssh localhost  or ssh your_login@your_ip_address</p>
</blockquote>
<p>4. Then create a vnc password</p>
<blockquote><p>sudo vncpasswd ~/.vncpasswd</p>
</blockquote>
<p>5. Edit the xstartup file in ~/.vnc directory</p>
<blockquote><p>For your xstartup file in ~/.vnc (the &#8220;.vnc&#8221; folder in</p>
<p>your home directory), you need the following:</p>
<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;</p>
<p>#!/bin/sh</p>
<p># Uncomment the following two lines for normal desktop:</p>
<p># unset SESSION_MANAGER</p>
<p># exec /etc/X11/xinit/xinitrc</p>
<p>[ -x /etc/vnc/xstartup ] &amp;&amp; exec /etc/vnc/xstartup</p>
<p>[ -r $HOME/.Xresources ] &amp;&amp; xrdb $HOME/.Xresources</p>
<p>xsetroot -solid grey</p>
<p>vncconfig -iconic &amp;</p>
<p>xterm -geometry 80&#215;24+10+10 -ls -title &#8220;$VNCDESKTOP Desktop&#8221; &amp;</p>
<p>gnome-session &amp;</p>
<p># twm &amp;</p>
<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;</p>
</blockquote>
<p>instead of uncommenting the lines as the script suggests, you change  the window manager to gnome-session</p>
<p>6. Create a VNC desktop</p>
<blockquote><p>vnc4server :1 -geometry 1024&#215;768</p>
</blockquote>
<p>7. Then to tunnel into your VNC desktop, first create a SSH tunnel by  logging into SSH with the comand:</p>
<blockquote><p>ssh -L 5901:your_ip_address:5901  your_username@your_ipaddress</p>
</blockquote>
<p>8. Finally, load up your VNC desktop</p>
<blockquote><p>vncviewer localhost:1</p>
</blockquote>
<p>And now you are ready to use connect to your machine remotely and use administer the computer remotely.</p>
<p>P.S: If you are using a firewall (hardware or software, you need to get enable port forwarding and unblock ports 22 and 5900-5999 on the Ubuntu machine to allow SSH and VNC to be accessed.</p>
]]></content:encoded>
			<wfw:commentRss>http://nuclear-imaging.info/site_content/2011/05/11/vnc-server-setup-for-ubuntu-11-04-natty-narwhal/feed/</wfw:commentRss>
		<slash:comments>10</slash:comments>
		</item>
		<item>
		<title>VNC server setup for Ubuntu 10.04 (Lucid Lynx)</title>
		<link>http://nuclear-imaging.info/site_content/2010/04/19/vnc-server-setup-for-ubuntu-10-04-lucid-lynx/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=vnc-server-setup-for-ubuntu-10-04-lucid-lynx</link>
		<comments>http://nuclear-imaging.info/site_content/2010/04/19/vnc-server-setup-for-ubuntu-10-04-lucid-lynx/#comments</comments>
		<pubDate>Mon, 19 Apr 2010 22:28:11 +0000</pubDate>
		<dc:creator>slash_boot</dc:creator>
				<category><![CDATA[Linux and OSS]]></category>
		<category><![CDATA[9.10]]></category>
		<category><![CDATA[karmic koala]]></category>
		<category><![CDATA[Lucid Lynx]]></category>
		<category><![CDATA[ubuntu]]></category>
		<category><![CDATA[Ubuntu 10.04]]></category>
		<category><![CDATA[vnc]]></category>
		<category><![CDATA[vnc server]]></category>
		<category><![CDATA[vncviewer]]></category>
		<category><![CDATA[xstartup]]></category>

		<guid isPermaLink="false">http://nuclear-imaging.info/site_content/?p=338</guid>
		<description><![CDATA[For the first time I was able to get VNC to work with Ubuntu with Gnome session instead of a xterm on gray background. The steps involved were exactly the same as I was following earlier, with one exception:  the setup of xstartup in the ~/.vnc folder. For your xstartup file in ~/.vnc (the &#8220;.vnc&#8221; <a href='http://nuclear-imaging.info/site_content/2010/04/19/vnc-server-setup-for-ubuntu-10-04-lucid-lynx/'>[...]</a>]]></description>
			<content:encoded><![CDATA[<p>For the first time I was able to get VNC to work with Ubuntu with  Gnome session instead of a xterm on gray background. The steps involved  were exactly the same as I was following earlier, with one exception:   the setup of xstartup in the ~/.vnc folder.</p>
<blockquote><p>For your xstartup file in ~/.vnc (the &#8220;.vnc&#8221; folder in<br />
your home directory), you need the following:<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br />
#!/bin/sh</p>
<p># Uncomment the following two lines for normal desktop:<br />
# unset SESSION_MANAGER<br />
# exec /etc/X11/xinit/xinitrc</p>
<p>[ -x /etc/vnc/xstartup ] &amp;&amp; exec /etc/vnc/xstartup<br />
[ -r $HOME/.Xresources ] &amp;&amp; xrdb $HOME/.Xresources<br />
xsetroot -solid grey<br />
vncconfig -iconic &amp;<br />
xterm -geometry 80&#215;24+10+10 -ls -title &#8220;$VNCDESKTOP Desktop&#8221; &amp;<br />
gnome-session  &amp;<br />
# twm &amp;<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;</p>
<p>instead of uncommenting the lines as the script suggests, you change  the window manager to gnome-session</p>
<p>make sure restart vnc4server</p>
</blockquote>
<p>The line which got Gnome working was &#8220;gnome-session &amp;&#8221;</p>
<p>========================================</p>
<p>Now for all the steps involved (works in Karmic Koala Alpha 2, Ubuntu  9.10, kernel 2.6.30-10)</p>
<p>1. Install ssh server, ssh client, VNC viewer, VNC server, and xinetd</p>
<blockquote><p>sudo apt-get install openssh-server openssh-client  vnc4server xinetd  vncviewer</p>
</blockquote>
<p>2. Setup the ssh password for your login</p>
<blockquote><p>ssh-keygen</p>
</blockquote>
<p>3. Test out the ssh server by typing in</p>
<blockquote><p>ssh localhost  or ssh your_login@your_ip_address</p>
</blockquote>
<p>4. Then create a vnc password</p>
<blockquote><p>sudo vncpasswd ~/.vncpasswd</p>
</blockquote>
<p>5. Edit the xstartup file in ~/.vnc directory</p>
<blockquote><p>For your xstartup file in ~/.vnc (the &#8220;.vnc&#8221; folder in<br />
your home directory), you need the following:<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br />
#!/bin/sh</p>
<p># Uncomment the following two lines for normal desktop:<br />
# unset SESSION_MANAGER<br />
# exec /etc/X11/xinit/xinitrc</p>
<p>[ -x /etc/vnc/xstartup ] &amp;&amp; exec /etc/vnc/xstartup<br />
[ -r $HOME/.Xresources ] &amp;&amp; xrdb $HOME/.Xresources<br />
xsetroot -solid grey<br />
vncconfig -iconic &amp;<br />
xterm -geometry 80&#215;24+10+10 -ls -title &#8220;$VNCDESKTOP Desktop&#8221; &amp;<br />
gnome-session &amp;<br />
# twm &amp;<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;</p>
<p>instead of uncommenting the lines as the script suggests, you change  the window manager to gnome-session</p>
</blockquote>
<p>6. Create a VNC desktop</p>
<blockquote><p>vnc4server :1 -geometry 1024&#215;768</p>
</blockquote>
<p>7. Then to tunnel into your VNC desktop, first create a SSH tunnel by  logging into SSH with the comand:</p>
<blockquote><p>ssh -L 5901:your_ip_address:5901  your_username@your_ipaddress</p>
</blockquote>
<p>8. Finally, load up your VNC desktop</p>
<blockquote><p>vncviewer localhost:1</p>
</blockquote>
<p>And now you are ready to use connect to your machine remotely and use administer the computer remotely.</p>
<p>P.S: If you are using a firewall (hardware or software, you need to get enable port forwarding and unblock ports 22 and 5900-5999 on the Ubuntu machine to allow SSH and VNC to be accessed.</p>
]]></content:encoded>
			<wfw:commentRss>http://nuclear-imaging.info/site_content/2010/04/19/vnc-server-setup-for-ubuntu-10-04-lucid-lynx/feed/</wfw:commentRss>
		<slash:comments>12</slash:comments>
		</item>
		<item>
		<title>Getting VNC to work in Ubuntu (Karmic Koala)</title>
		<link>http://nuclear-imaging.info/site_content/2009/07/03/getting-vnc-to-work-in-ubuntu-karmic-koala/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=getting-vnc-to-work-in-ubuntu-karmic-koala</link>
		<comments>http://nuclear-imaging.info/site_content/2009/07/03/getting-vnc-to-work-in-ubuntu-karmic-koala/#comments</comments>
		<pubDate>Fri, 03 Jul 2009 13:53:23 +0000</pubDate>
		<dc:creator>slash_boot</dc:creator>
				<category><![CDATA[Linux and OSS]]></category>
		<category><![CDATA[ubuntu]]></category>
		<category><![CDATA[vnc]]></category>

		<guid isPermaLink="false">http://nuclear-imaging.info/site_content/?p=275</guid>
		<description><![CDATA[For the first time I was able to get VNC to work with Ubuntu with Gnome session instead of a xterm on gray background. The steps involved were exactly the same as I was following earlier, with one exception:  the setup of xstartup in the ~/.vnc folder. For your xstartup file in ~/.vnc (the &#8220;.vnc&#8221; <a href='http://nuclear-imaging.info/site_content/2009/07/03/getting-vnc-to-work-in-ubuntu-karmic-koala/'>[...]</a>]]></description>
			<content:encoded><![CDATA[<p>For the first time I was able to get VNC to work with Ubuntu with Gnome session instead of a xterm on gray background. The steps involved were exactly the same as I was following earlier, with one exception:  the setup of xstartup in the ~/.vnc folder.</p>
<blockquote><p>For your xstartup file in ~/.vnc (the &#8220;.vnc&#8221; folder in<br />
your home directory), you need the following:<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br />
#!/bin/sh</p>
<p># Uncomment the following two lines for normal desktop:<br />
# unset SESSION_MANAGER<br />
# exec /etc/X11/xinit/xinitrc</p>
<p>[ -x /etc/vnc/xstartup ] &amp;&amp; exec /etc/vnc/xstartup<br />
[ -r $HOME/.Xresources ] &amp;&amp; xrdb $HOME/.Xresources<br />
xsetroot -solid grey<br />
vncconfig -iconic &amp;<br />
xterm -geometry 80&#215;24+10+10 -ls -title &#8220;$VNCDESKTOP Desktop&#8221; &amp;<br />
<span style="color: #008000;">gnome-session &amp;</span><br />
# twm &amp;<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;</p>
<p>instead of uncommenting the lines as the script suggests, you change the window manager to gnome-session</p>
<p>make sure restart vnc4server</p></blockquote>
<p>The line which got Gnome working was &#8220;gnome-session &amp;&#8221;</p>
<p>========================================</p>
<p>Now for all the steps involved (works in Karmic Koala Alpha 2, Ubuntu 9.10, kernel 2.6.30-10)</p>
<p>1. Install ssh server, ssh client, VNC viewer, VNC server, and xinetd</p>
<blockquote><p>sudo apt-get install openssh-server openssh-client vnc4server xinetd  vncviewer</p></blockquote>
<p>2. Setup the ssh password for your login</p>
<blockquote><p>ssh-keygen</p></blockquote>
<p>3. Test out the ssh server by typing in</p>
<blockquote><p>ssh localhost  or ssh your_login@your_ip_address</p></blockquote>
<p>4. Then create a vnc password</p>
<blockquote><p>sudo vncpasswd ~/.vncpasswd</p></blockquote>
<p>5. Edit the xstartup file in ~/.vnc directory</p>
<blockquote><p>For your xstartup file in ~/.vnc (the &#8220;.vnc&#8221; folder in<br />
your home directory), you need the following:<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<br />
#!/bin/sh</p>
<p># Uncomment the following two lines for normal desktop:<br />
# unset SESSION_MANAGER<br />
# exec /etc/X11/xinit/xinitrc</p>
<p>[ -x /etc/vnc/xstartup ] &amp;&amp; exec /etc/vnc/xstartup<br />
[ -r $HOME/.Xresources ] &amp;&amp; xrdb $HOME/.Xresources<br />
xsetroot -solid grey<br />
vncconfig -iconic &amp;<br />
xterm -geometry 80&#215;24+10+10 -ls -title &#8220;$VNCDESKTOP Desktop&#8221; &amp;<br />
gnome-session &amp;<br />
# twm &amp;<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;</p>
<p>instead of uncommenting the lines as teh script suggests, you change the window manager to gnome-session</p></blockquote>
<p>6. Create a VNC desktop</p>
<blockquote><p>vnc4server :1 -geometry 1024&#215;768</p></blockquote>
<p>7. Then to tunnel into your VNC desktop, first create a SSH tunnel by logging into SSH with the comand:</p>
<blockquote><p>ssh -L 5901:your_ip_address:5901 your_username@your_ipaddress</p></blockquote>
<p>8. Finally, load up your VNC desktop</p>
<blockquote><p>vncviewer localhost:1</p></blockquote>
<p>And now you are ready to use connect to your machine remotely and use t</p>
]]></content:encoded>
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		<slash:comments>0</slash:comments>
		</item>
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