Failure is the Key to Success

Better late than never, this post has sat in draft for a nearly three months. I had a laptop running Ubuntu acting as a proxy server to filter all the kids’ internet traffic and decided back in February that it was getting a bit long in the tooth. It was a Compaq M700 laptop, with a 400MHz processor, 384MB RAM and an 8GB hard disc. A long time since it had been state of the art! The last straw came when I couldn’t upgrade the operating system to the latest version as I didn’t have enough disc space. The old laptop provided several functions for me, so these would have to migrated to the replacement machine.

A few days later, I bought a Dell D610 laptop (Celeron 2.0GHz, 40GB hard disc) off Ebay and some additional memory to take it to 2GB.

I had downloaded Ubuntu Server 10.10 about the same time and burnt the ISO to CD, however when I came to use it I found the image was incomplete, so had to download it again. Second time lucky.

The notes below are for me as an aid for future rebuilds, but may help someone else with their configuration.

Continue reading » Proxy server

Tags:Dansguardian,dellfand,proxy server,spamassassin,Ubuntu

My DVD recorder that I have had for about 3 and a half years has been causing us a few problems when recording Freeview channels. We were getting breakthrough on the audio from the cable connection on the other Scart socket. This would get very distracting when watching a recording as there was this quiet, audible echo of another soundtrack.

A few months ago we picked up a usb TV tuner at Costco and that got me thinking about a PC based solution for the problem. About 9 years ago when we first attached a PC to our HiFi system, it was a very low specification and although we had a TV tuner card, the PC wasn’t powerful enough to record anything usable. As time went on, the PC has been replaced a few times and about 5 years ago we installed a piece of software called Meedio that we used to manage/play our video and audio files. There was also Meedio TV to record from TV, but we never explored it as the PC was still fairly low spec. At the time we chose Meedio, I had been aware of a Linux based program called Mythtv, but due to the fact that the PC was low spec and I was more familiar with Windows, this was discounted.

Roll forward to this year and I explored the options again. This time Mythtv sounded worth investigating, so I downloaded a copy of Mythbuntu, this is a Ubuntu Linux operating system bundled with Mythtv. I am currently using Ubuntu on a PC providing filtered internet access for the kids, so was more familiar with this than any other distribution. Using a 120GB disc in the old Dell desktop we replaced 18 months ago, I installed Mythbuntu and started trying it out. In the past few years Linux installations have become a breeze. My first installation was Slackware 2 back in 1995, and that was a command line experience that was challenging. Now, you just put the CD in and get lead through the install just like a Windows operating system installation. Anyway, after less than 30 minutes, I had the operating system installed, Mythtbuntu configured with my usb TV tuner and the first TV programs recording. I set the program guide to pick up from the cable guide and that gave me a few days available programming.

Continue reading » Replacing my DVD recorder

Tags:Mythbuntu,Mythtv

Over Christmas, the main hard disc on our 5.5 year old Dell mini tower failed, causing us to replace the computer with a new one. We could have replaced the disc, but we had had other components in it fail in the past year, so its time was up. We didn’t really loose any data, as the majority was already stored on our server and backed up regularly. What was more of a problem was the assortment of programs that had been installed and configured over the years. The thought of having to re-install and reconfigure these wasn’t something I was looking forward to, especially if I had to change the operating system to Windows Vista, from Windows XP. Some of the programs would need upgrading to run on Vista and the cost would be prohibitive.

Dell do a range of computers for Small Business, called Vostro which are very well specified and which also offered the option to ‘downgrade’ from Vista to XP for £10. This seemed a very good solution to me. We specified a Vostro 220 mini tower system with a dual output graphics card to match the functionality we already had. This also became the point at which we changed from a pair of 17″ CRT monitors to a pair of 19″ widescreen TFT monitors. The thought was to re-arrange our desk to minimise the items on it. To accomplish this we bought a Belkin OmniView Pro2 KVM (keyboard, video, mouse) switch which would allow us to run both the new computer and Jo’s laptop sharing one of the screens and the other screen only attached to the new system.

When the system arrived, I was in for a surprise with the dual outputs on the graphics card. I was expecting a pair of DVI (white digital connector on the left) outputs. I should have checked the specifications of the ATI Radeon HD 3650 card that Dell provided more carefully. It had one DVI output (which I promptly had to convert back to VGA to attach to the KVM switch) and a Display Port and HDMI output. I had to get a HDMI to DVI cable to attach the second monitor.
Continue reading » Enabling RAID 1 on a Dell Vostro 220

Tags:intel matrix storage console,raid,raid 1,vostro 220

I signed up with Skype a few months ago to give me another VoIP telephony option. Skype to Skype calls are free, so it seemed worth setting up.

I originally got myself a Bluetooth headset. Initially, I had problems connecting the headset to the Bluetooth on my laptop. I upgraded the Bluetooth stack to the latest Toshiba stack and then was able to successfully connect the headset to my laptop and configure Skype to use it. However, shortly afterwards, the headset locked up completely and I was unable to use it.

Continue reading » Kensington VoIP handset

Tags:kensington Vo200,skype,voip

The Netgear FVS124G router has settings to allow it to pick up the time from NTP (Network Time Protocol) servers.

I initally set this to my local NTP server with a backup on an online one. However, there is no way to manually set the time initially. When you power on the router the date is set to 1st January 2005. The problem with this is that using NTP will only correct a small time difference; 3.5 years is a big large to correct.

I had almost given up on resolving it when I thought to try connecting using telnet to the router.
The user name and password for the telnet session are the default admin credentials (not the ones I had changed for the web interface). Once connected, press Ctrl C, then type Cli (Capital C is important). This gets you to a unix type shell. Then cd config cd sntpc show This will confirm that the time is sychronised and gets around the large time differnece. Then type exit and logout.

The bonus of fixing the time is the firewall logging now works properly.

Tags:netgear fvs124G,ntp netgear

Tim at The Inflatable Soapbox blind sided me this with this post and tag on Tuesday night.

I wasn’t able to reply on Tuesday as I was replacing a failing hard disc and reinstalling Windows XP on a laptop for a colleague at work. I’d forgotten how long it takes from plain XP, through Service Pack 2 and then downloading and installing the remaining 91 security patches. Still, after all that I was able to install Avast as a free Anti-Virus program and Open Office as a free office suite (much better than MS Works that was previously on the system).

On Wednesday at work, I got called to look at a printer with a paper jam. Usually a simple fix, in the worse case maybe a pair of tweezers to remove the last bit of torn paper. The printer was an old, but very serviceable LaserJet 4000, not very heavy use, so plenty of life left in it. Of course, no maintenance on it, its not worth it for a printer that’s getting on for 9-10 years, so if I didn’t fix it, we would replace it…it would be cheaper than getting it fixed. After 10 minutes at the printer location pulling scraps of paper out of it, I took it back to my desk. I ended up unscrewing just about every bit that would come off, before I could finally get the tweezers to the last bits of crinkled paper and pull it out. All in all, I removed a piece of paper about the size of my hand, but it was finally working again. Just time to get it back on the shop-floor and get the toner off my hands before going home.

Continue reading » Tuesday Tech Troubles and Triumphs