No Name » ubuntu

Keeping SSH Session Alive

blog — Thu, 03 Dec 2009 10:42:31 +0000

Preventing a SSH connection from dropping while you are inactive or waiting for a script to finish is quite easy. If you are on a Ubuntu or Debian client you only have to add one line to
/etc/ssh/ssh_config ServerAliveInterval 5
In OSX the config file for ssh can be found in /etc/ssh_config.

Actually this line sends a keep-alive packet to the server every 5 seconds. You can change the interval as you like, but for me it works best with 5 seconds.

Alternatively you can also use the parameter when connecting to the remote host. The command looks like this:
ssh -o ServerAliveInterval=10

Installing Adobe Flash Plugin in Mozilla Prism on Linux

blog — Sun, 10 May 2009 14:10:47 +0000

Today I gave Prism a try. I have several websites, which need a proxy to get access, but for others I don’t want to use the proxy at all. So I created a new configuration to have the site available in one click. After starting up the first time, I realized, that the Adobe Flash plugin is not installed. After stumbling around the web I found out that basically only the libflashplayer.so needs to be copied to the plugins folder of Prism.

This is a bit tricky, because there is no plugins folder in Prism by default. So I started with
root@HASS:/opt/prism# mkdir plugins
for creating the folder in the right place.

Next I tried to locate the Flash plugin file with
locate libflashplayer.so

As a result i got
/usr/lib/adobe-flashplugin/libflashplayer.so

The next step was copying this found file over to the newly created plugins folder
cp /usr/lib/adobe-flashplugin/libflashplayer.so plugins/.

From what I saw, this problem does not happen on other platforms.

Convert uif Images in Ubuntu Linux

blog — Thu, 20 Mar 2008 07:39:41 +0000

In my windows ages I was used to make backups in uif format. Sofar I couldn’t find any way to transform these images back from .uif to .iso. For all the people out there who don’t know what uif is:

Universal Image Format(UIF) is a powerful compression image file format for backing up CD/DVD. It is fast, reliable, and has rich set of features which include password-protected, data encryption, MD5 checksum support and much more. UIF can not only contain the complete data of CD/DVD just like ISO image, But UIF also supports backing up multi-session CD/DVD, Audio-CD, VCD, SVCD and DVD-Video.

Before I was always using magicISO in wine or virtualbox. Today I found a great tool to do that right inside ubunt. Just get the tool here and compile it and have fun!

Panasonic CF-R7 on Linux

blog — Sat, 16 Feb 2008 11:53:29 +0000

Specs for my CF-R7 Japanese Model.

CPU: Intel Core 2 Duo U7500 @ 1.06GHz
Memory: 1GB 533MHz
Graphics: Mobile GM965/GL960 Integrated Graphics Controller
Chipset: 82801H (ICH8 Family)
Network: 88E8055 PCI-E Gigabit Ethernet Controller vendor: Marvell Technology Group Ltd.
WiFi: PRO/Wireless 4965 AG or AGN Network Connection vendor: Intel Corporation
SATA-Controller: 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller
HDD: TOSHIBA MK8037GS 80GB
PCMCIA: RL5c476 II Ricoh Co Ltd
SDHC: R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter Ricoh Co Ltd
Battery: Lithium Ion Battery 41760mWh @7.2V

In Ubuntu nearly everything works out of the box:

Graphics: needs some tricks to work with compiz -> driver is blacklisted

WiFi: works out of the box

Ethernet: not tried yet

SDHC: works out of the box (never worked for me on the r3)

Hotkeys: Recognized by Gnome but are not working (need to try to find a fix)

Displaybrightness: Doesn’t work at all. Tried pcc_acpi driver on kernel 2.6.22 and 2.6.24 without any luck. Both are also not working with xbacklight.

Suspend to Ram: works out of the box

Frequency Management: works out of the box

Got a new machine – CF-R7

blog — Sun, 10 Feb 2008 09:49:36 +0000

Last week I got a new notebook. First I was thinking of getting the Panasonic CF-R6 but later I realized that 2GB of memory can be very fine so I decided to get a new one and so I chose the CF-R7 which comes with 1GB memory a 80GB HDD and a Intel core2duo processor. It came in a very small package.

The first thing I realized is, that they added a small fan on the back. I was not that happy at first, but I realized by the time that it is very silent.
Since I am no Vista user I installed Ubuntu Gutsy Gibbon.

Everything worked quite out of the box even the sdhc card reader in the front. The only thing which is not working is the feature to change the display brightness with the hotkeys. I tried everything sofar but no luck at all.

After some days of working with it I can say that I am very happy with this machine. Its small, fast, light, not easy to break and runs quite long on the battery.

Network Manager Causing High Load

blog — Tue, 01 Jan 2008 16:18:05 +0000

Sometimes when I wake up my Ubuntu laptop from suspend mode, it is the case that the Network Manager is having 100% load. I can’t connect to any network, so nothing is working. If you restarted your computer at this point and also get in the checking hdd routine, then your are in bad mood, well at least I was.

A solution I am using is, simply kill the process and restart it again. How to do this?
Just run the two following commands.
sudo killall -9 NetworkManager sudo /etc/dbus-1/event.d/25NetworkManager start
After a short time the Network Manager starts searching for the Network connection and you are ready to roll.

Using Platex For Writing Japanese In Ubuntu

blog — Sun, 16 Dec 2007 13:40:33 +0000

The task was to make it possible to write a document in Japanese Language and compile it with platex.

First there are some packages you need to install. I don’t really know if you need anthy to be setup at this point, but it was already setup on my machine.

Get:
% sudo apt-get install ptex-bin ptex-base okumura-clsfiles % sudo apt-get install ptex-base ptex-bin ptex-jisfonts % sudo apt-get install xdvik-ja dvipsk-ja dvi2ps gv gnome-gv % sudo apt-get install jbibtex-bin jmpost mendexk % sudo apt-get install okumura-clsfiles vfdata-morisawa5 dvi2ps-fontdesc-morisawa5 % sudo jisftconfig add
After that you can fire up emacs. Go to Options->MULE and set Language Environment to Japanese.
Now you can just start writing the document. To start withI suggest using jarticle as the documentclass.

When you are done with it run platex yourfile.tex and if you are not getting any missing font errors your are nearly done with everything. The next step is to view the *.dvi file. For that use xdvi-ja yourfile.dvi and everything should show up correctly.

Leave me a comment if problems occur.