ross's blog

New IP for Services

Betsuin Air-Stream WAN services can now be found at 10.122.128.66
Enjoy!


RB on the Roof

The unit is on the roof and pinging Air-Stream-Skye:

[admin@433AH] > ping 10.122.128.1
10.122.128.1 64 byte ping: ttl=64 time=12 ms
10.122.128.1 64 byte ping: ttl=64 time=11 ms
10.122.128.1 64 byte ping: ttl=64 time=11 ms
10.122.128.1 64 byte ping: ttl=64 time=12 ms
10.122.128.1 64 byte ping: ttl=64 time=55 ms
10.122.128.1 64 byte ping: ttl=64 time=11 ms
10.122.128.1 64 byte ping: ttl=64 time=11 ms
10.122.128.1 64 byte ping: ttl=64 time=11 ms
8 packets transmitted, 8 packets received, 0% packet loss
round-trip min/avg/max = 11/16.7/55 ms
[admin@433AH] >


RouterBoard

At last upgrading my node to an RB422AH with an R52Hn radio - not on the roof yet but at least in it's box.


Biggest AS

Playing around with nagios configuration again and have mapped the greatest number of pingable IPs on Air-Stream to date:

route -n | awk '{print($1" " $3)}' | awk '!a[$0]++' | awk '{print("ipcalc "$1"/"$2)}' | sh | awk '{if ($1 == "Network:") print($2)}' | awk '{print("nmap -sP -n "$0)}' | sh | awk 'BEGIN {a=0} {if ($6 == "up.") a++} END {print(a)}'

a = 439

I can successfully tcptraceroute to 339 via scripts - have yet to implement "ping -R" which seems to work when tcptraceroute/traceroute fails. Of course "ping -R" won't reach right across the Air-Stream network due to limited hop buffering... hmm

Anyways for now nagios is mapping 339 Air-Stream IPs!

Hit betsuin.skye.wan/nagios/ if you are on Air-Stream
guest/guest


Heat

The BeigeG3 is starting to feel the strain and has fallen over in the heat - ouch!
I'll try reseating all components, the box has been sitting there a while now however hot days may well see Air-Stream-betsuin down.

Guess the new year might see me looking for a new box - maybe time to grab a new Mac and stick the G4 tower at the top of the stairs, it's got enough PCI slots and has OpenFirmware2 which makes dealing with Debian simpler.


War§ow

Have upped my War§ow server to the latest and greatest 0.5 version!

However the compile failed on the AngelScript module so I simply disabled it in the make file - this is on my PPC Air-Stream router/server. Seems to be working fine though I have yet to fully tweak the config file(s) - not all maps work with bots (I have 2 added) as on a PPC platform the prebuilt navigation files are broken and must be recreated on a PPC system - big-endian vrs little-endian biz I presume.

Visit War§ow here http://www.warsow.net/
or hit my ftp ftp://betsuin.skye.wan/ if you want to download the game.

Enjoy!


Net Side Japan

Cozy in Japan with my EeePC, the apartment we are renting comes with an RJ45 jack in the wall that appears to be an optical fibre connection to the internet thru http://www.alpha-net.ne.jp/ (Japanese only) --- very nice!

Downloads aren't startling however initial 5% of an ubuntu iso from http://www.ftp.ne.jp/Linux/packages/ubuntu/releases-cd/ came down at 2~3MB/sec! after that it dropped down to around 700~800KB/sec which is what I get off of the Adam servers.

ross@eeepc:/media/disk$ ping google.com
PING google.com (74.125.67.100) 56(84) bytes of data.
64 bytes from gw-in-f100.google.com (74.125.67.100): icmp_seq=1 ttl=46 time=175 ms
64 bytes from gw-in-f100.google.com (74.125.67.100): icmp_seq=2 ttl=46 time=176 ms


SPLAT!

Finally managed to wrap my brain around SPLAT! command line intracacies and PERL syntax. Still a few errors showing up in my Apache2 logs but not fatal and the scripts are mostly working as expected.

##Update - couple more errors found and now the profiles report has much more information!
##Update(9/9/9) - Thanks to the author now have SPLAT!1.3.0 successfully compiled and installed (up from SPLAT!1.1.1) - but the profiles report is back to less information. "man splat" me thinks is the answer, lol! ...

Original scripts can be found at ftp://cs.ecok.edu:4000/

SPLAT! takes information regarding transmitting (and receiving) radios, uses ground height data (SRTMv2 - Space Shuttle Topographic Mission Version 2) and calculates Line of Sight and expected Signal Strength.


WebCam

Have a new webcam courtesy of a friend which works with the spca driver.
betsuin.skye.wan/webcam/webcam.html
Pointing this way and that ;-)

Update - this webcam is good in the dark, consequently daytime is rather like a snow-storm - all white!



Digital Elevation Mapping

The powers that be have released new and allegedly better ASTER DEMs - Digital Elevation Maps - of the world.
www.gdem.aster.ersdac.or.jp
Unfortunately Australia and regions outside of the USofA have been down sampled to 3 arc-sec (90 metre) from the original 30m and 15m data. ASTER and SRTMv2 thus are at the same resolution - 1 "pixel" is 90m^2.

A small preview of the data can be found here on Air-Stream...

http://betsuin.skye.wan/aster_srtm/

I have saved some images using both data sets of the Magill/Mt Lofty region visualized with 3DEM.
The "dimple" in the lower left of the SRTMv2 image is Thornton Reservoir and the high ridge running up to Mt Lofty upper right.