My Posts

Present at WhatTheHack

Yay! We are at WhatTheHack! Our village is the UNNet Village.

Let's do an update on all these projects I had lying around here:
  1. ATI 9250 Dualhead on Linux - Currently I have upgraded my machine to a ATI 9800SE card, which works just fine with the 9250 configuration I made earlier
  2. Diskless Asterisk box - We have the asterisk box with the E1 in production now running diskless (also feeding our VOIP phones here at whatthehack (backhauling ISDN30 rules!)). Configuration thanks to MacTijn for the zaptel config!
  3. DNSMib - Currently in the fridge, not much time to do work for this :(
  4. 4TB Box - The 4TB Box is currently build and running as an production NAS.

§ - posted by - * default - * No comments yet - 28 Jul '05 -08:44

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Sigma 50-500 1:4-6.3 APO DG HSM

It's finally in my new 50-500 mm telelens! Here is a picture
I must say the built quality of the lens is very very good. Very little plastic at all. Image performance is also very good. Even sharp pictures are possible at 500mm when using without a tripod or monopod. However there are a few little minor problems with it:
  • The weight, it is around 2Kg which means you are building quite some muscle using it. Use on a tripod is recommended!
  • The zoomring is quite stiff to use, however I think this will better when using it some more
Some pros about the Sigma are also in the accesoires department. The lens comes standard with a Sun hood, Tripod mount, Lensbag and straps. More pictures and information to come in the future!

Still the following items are on my photo wishlist:
Following items have been ordered!
  • Canon BG-E3 - Grip

§ - posted by - * default - * No comments yet - 09 Jul '05 -10:36

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Areca Issues SOLVED!

Some of you might remember that I had some issues with the SuperMicro 5014C-MT barebone server and the Areca ARC-1110. These problems are solved. The problem lie in the fact that I did not use ACPI in the kernel (something I rarely turn on on servers). After turning on ACPI it worked like a charm. Also our new 4TB box faced the same problem and this is also fixed now. It performs over 230 meg/sec read performance and 170 meg/sec write performance on a 15 disk RAID6 array. However we have upgraded the onboard ARC-1160 to 512 MB cache instead of the normal 128 MB.

§ - posted by - * Areca - * two comments, already - 10:31

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DNSMib: A method to obtain MIB information trough DNS

DNSMib was thought of by ytti of #networker. I decided to write this draft and make a prototype implementation. Why DNSMib? Because fetching MIBs is an hell if you only want descriptions and names for OIDs if you snmpwalk a device. DNS is the ideal OID search base as it is using the same hierarchy. It is even possible to delegate a certain OID subtree to a vendor's nameserver.

The first prototype implementation will be a patch to net-snmp probably. Testing tools will be build in perl. The DNS backend will be something that has to be d
ecided on before hand. Some DNS server that can do SQL or can handle dedicated backends (that read MIB files directly) are preferred ofcourse.

The above is a snippet of the draft I just written about DNSMib. I have just registered the domain dnsmib.nl for this project (active tomorrow). Please follow that url to see updates of the project.

§ - posted by - * default - * No comments yet - 03 Jul '05 -20:00

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