Posts

Windows 7 immediatly waking up after sleep

At home I have set up a new Windows 7 computer and the intention is to put it to sleep mode when we don't use it, to achieve ~5 sec start time. When I set it up, I realized, that as soon as I put it to sleep mode, it waked up. After checking the event viewer, it turned out that it received the wake up signal from the network. Finaly I figured out that on the configuration menu of the Ethernet adapter on the Power Management tab, I had to check that only allow magic packet to wake up computer. This solved the problem immediately.

Custom firmware for everything

I like very much custom firmware and altrough I have very little experience with it, I like very much reading about it. So here is a list of links to different custom firmware sites: Firmware for MP3 players - RockBox Firmware for Canon cameras - CHDK Firmware for Western Digital Media Players - B-RAD Firmware for Asus O!Play Media Players - MiniModding Firmware for Samsung TVs - SamyGo Firmware for Raidsonic NAS-1000/NAS-2000 NAS devices - NAS2000.org Firmware for routers: DD-WRT OpenWRT Tomato firmware Freetz for AVM FritzBox

Accessing WAP sites from a desktop computer

Sometimes you may need to access WAP sites from your desktop computer, for example if you want to save a downloaded java game or you want to access some information on WAP which is normally only accessible from a phone. There are two problems to be solved: user agent setting for the browser - you may need to change this, in order to make the web site think that you are browsing it from a mobile phone using the operator's wap network, because some content is only available if you are accessing it from the operators network. Changing user agent For the first, theeasiest solution is to use Firefox and then change the 'general.useragent.override' setting of the browser for example to: Nokia6230/2.0+(04.43)+Profile/MIDP-2.0+Configuration/CLDC-1.1+UP.Link/6.3.0.0.0 to simulate a Nokia 6230. You can check your browsers user agent on this web page . For a list of user agent string for different phones go here . Using the WAP network The easiest way of connecting your...

Changes in Ericsson W25 11B firmware

I have not checked it very thorowly, but Ericsson has changed a lot of the programs used in the Ericsson W25 router. I have mentioned before that the wget has dissapeared. The time setting from network is now fixed, it keeds up and running even after connecting and disconnecting to the ionternet. Another change that the DNS and DHCP services were changed to a program called DNS relay, you can find it's decription here. If you want your domain handled with it, simply put the following line in your /etc/dhcpdoptions.conf file: domain=your.domain Other new tool is the xl2tpd (which is not and excel to pdf converter :-) which is the tunneling (e.g. ipsec) handling part. description of a simmilar program can be found here.

Low power consumption appliance based on desktop computer

I would like to have an always on server for my home network, and altrough I have already two ARM based routers which can be customized, I would like to have an x86 based computer, because it is much easier to install linux programs on it and normally they have faster processors and more memory than the ARM counterparts. I would like to use it for 3 functions: To be the center of the home network with an Apache based WEB interface, whcih can do all network related tasks Install an Asterisk PBX and connect all our phones to it, including mobile phones via Bluetooth Be a storage backup server with two Tbyte or close to Tbyte SATA hard disks Earlier I had a 3G/HSDPA WLAN gateway created from an old laptop, and with the HDD and display switched off, it consumed only 10W, but I was considering to have a modern desktop motherboard with a Intel E2160 or simmilar processor to reach a good power consumption. Before going into this I checked the power consumption of different solutions ...

Upgrading Ericsson W25 to firmware 11B

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After long monthes of perfect working, last week my internet connection trough the W25 started to become very unstable, most of the time even not working. Looking at the statistics it turned out that something hapened in the network, which increased the speed of my connection :-), but after approximately one day, the connection became unstable and was more down that working. My first guess was, that my operator has upgraded the serving cell from 3,6 Mbps to 7,2 and the 7D firmware I was using may have a bit buggy radio module. So I started the upgrade. First I have upgraded to 11A, because I have downloaded that already before, and with the bad connection I could not check if there is a better FW available. The upgrade from the WEB UI went pretty smothly, after waiting a lot for checking the radio module FW version, the procedure ended without any problem. I was a bit afraid, that my root password will be changed, but the upgrade behaved correctly and did not change my credien...

Links to NAS and SAMBA performance

In my prevoius blog I wrote about my tests to increase the read/write speed on my Linux home server, now I will collect some links here: A very good comparition of Windows and Linux file system for using as a NAS. Test result for a consumer NAS device. Test results for Linux file systems (ext2, ext3, Reisser, XFS). IOZone test suite. NAS performance measurement comparations. A test measurement of comparing Solaris ZFS, Ext2 and XFS in NAS environment. It is using NFS intead of SAMBA, but the speed results are very convincing with read speeds over 76 Mbyte/sec and write speeds arround 35 Mbyte/sec. I started to do some own test in the server itself, and copying a file from one disk to an other was done with the speed of 23,4 Mbyte/sec, which shows, that it is possible to write to an ext3 filesystem with speeds above 20 Mbyte/sec. I will do some more testing later. I did some testing on my Windows Desktop computer and got a read and write speed of ~90 Mbyte/sec, and thi...