January 2007 Archives

29-01-2007 09:24

Tunneling home

I know there other methods to ssh tunneling, but this is a simple way to use ssh to access other systems on the LAN your ssh'ing to. Add something like below to your ~/.ssh/config file on the client side.

Host dward.us
        Port 443
        user david
        LocalForward 8080 10.1.1.2:80
        Localforward 8081 10.1.1.1:80
        LocalForward 8082 p2002l:80
        LocalForward 8025 10.1.1.1:25
        LocalForward 8143 10.1.1.1:143					

So I can ssh to a PC in my house using domain name dward.us and then with these settings, I can access a computer with IP 10.1.1.2 and through port 80 (http) using localhost port 8080. Very easy and very handy.


Posted by DaveQB | Permanent Link | Categories: IT

21-01-2007 14:58

Kpowersave and Kubuntu guidance-power-manager

I don't see why Kubuntu dev's are developing this mimic of kpowersave. I must be missing something here. I do know that turning off guidance-power-manager, installing and enabling kpowersave meant I was able to have full access my new laptops CPU scaling options. Allowing me to use full CPU power when on mains [guidance didnt change from low CPU speed no matter what] and different scaling scheme's depending on my needs at the time.


Posted by DaveQB | Permanent Link | Categories: IT

18-01-2007 12:16

Virtual Desktops on Windows

Like many people, I am forced to use a Windows Operating System at work. This is a very frustrating and time wasting endeavour, trying to get any usefulness out of Windows to be remotly productive. Of course I have done the usual Cygwin install etc but working with only 1 desktop is hard to get used to; very limiting. I have tried a MS's own "Power Tools" implementation and some third party solutions but nothing really works. Here's a GPL'd solution.

virt-dimension.sourceforge.net/

Here's hoping it works good. Anyone with better solutions please contact me.


Posted by DaveQB | Permanent Link

18-01-2007 11:54

Back-UPS CS 350 USB/Serial

So I did a bit of research and found an article (APC Back-UPS CS 350 Review) on Linux At Home. Dated 2001 and the author got this device working fine once he got the serial cable in from APC. So I thought it was a safe bet.

When I got it home last night, I looked into getting this serial cable. Had some luck with a form that said to post it back for FREE Software and serial cable or apply online. Did that. Then did some more research on this to see the USB cable might be fine. So ran over to the server and plugged it in. VOILA! Detected ok according to the apcupsd documentation. So continued through the docs to the config part. I found I had to edit /etc/apcupsd/apcupsd.conf. I had to set these variables in that file:

DEVICE /dev/usb/hiddev0
UPSTYPE usb
UPSCABLE usb

Restart apcupsd (/etc/init.d/apcupsd restart) and then check /var/log/apcupsd.events to see apcupsd 3.10.17 (18 March 2005) debian startup succeeded. Then just continued on with the docs with getting info about the status of the unit etc. Haven't finished configuring, checking and testing but it seems like its going to work just fine and no need for a serial cable.

Well done the team at apcupsd!!


Posted by DaveQB | Permanent Link

18-01-2007 11:31

Bluetooth, Mobile and PC.

Now I have a brand spanking new shiny Lenovo Z61t laptop [yes, I will be doing a review of how my Kubuntu Edgy install on it soon] I was thinking of getting a data plan with Vodafone to use 3G to access the net from any 3G area. But they only come in plans and I was looking for a more pre-paid type of setup just in case of emergencies. So why not just piggyback onto my current Vodafone plan that I have with my Nokia 6280 ?

Enter this here article.

http://forums.wspirates.com/index.php?t=rview&goto=13103#msg_13103

Haven't tried this yet. Looking forward to though


Posted by DaveQB | Permanent Link

05-01-2007 18:29

Iptables tutorial

Always wanted to learn how to use Iptables properly. This looks good.

http://www.novell.com/coolsolutions/feature/18139.html


Posted by DaveQB | Permanent Link | Categories: IT

03-01-2007 23:25

udev or devfs or neither

I was unaware of the fact that a computer can plod along without EITHER devfs or udev. I thought they had to have either of the two.

So how does one know there's uses ?

I found this:

"How do you know if you have devfs or udev? devfs /dev/.devfsd exists udev < 1000 files in /dev neither > 1000 files in /dev (created at installation by MAKEDEV)"

So if you dont have /dev/.devfsd then do this.

 ls /dev/ | wc -w

My personal computer, which I know runs udev returned 699, while my Sarge boxes both returned a number over 1,000

You learn something new everyday


Posted by DaveQB | Permanent Link