Saturday, May 30, 2009
Thursday, May 28, 2009
- connect wake-on-LAN to Asterisk, see if the NSLU2 can wake up the server
- configure Asterisk to turn on/off various services, including VirtualBox
- debug the serial port (is it a bad cable?)
- research what's needed to move the IPv6 connection to another gateway
- look for Laconica service/site (will 757 host one?)
Somewhat of a busy weekend. I'm having a lot of fun, experimenting with Asterisk's system command!
Monday, May 25, 2009
In any case, this effort sprang from a conversation with Sparks, where he was looking for something to provide VoIP access without drawing quite so much electricity as the behemoth desktop computer that he built (I'm still drooling over it). He's interested in what I can build with the NSLU2 because it only draws 10 W, where his desktop monster draws 300+.
A few of the things that I've learned this weekend:
- the native build environment DOES NOT include building kernel modules
- the asterisk16 package in the Optware distro is borked (asterisk14 works nicely)
- the Slug (the generic name for a NSLU2 + SlugOS) can supposedly only handle 4 concurrent calls
- the Slug and my desktop system can't come to an agreement on the alaw codec, but they play nicely with the ulaw codec
- a good bit of spit and polish has gone into SlugOS since I last played with it; it now boots and shuts down quite nicely
- If, with a 1GB thumb drive, you build the OS, build/mount a 200 MB swap file, and install Asterisk, MySQL, screen, irssi, and a number of core utils, you'll have about 500MB of free space left.
- building a cross-compile environment is not a simple task (I was trying to build two actually: one for the NSLU2, one for my Media MVP).
Even though I'm not going to have anything to show for my effort after Monday (when Sparks takes custody of the box), I feel that I've accomplished a great deal this weekend. That and two of my friends will _owe_ me (ahem, Sparks, zENGx!) (heh).
As always, the notes for installing Asterisk on the NSLU2 are in the wiki.
Sunday, May 17, 2009
Meru's gear, back when they were only doing "b" was interesting. Now, when it's combined with 802.11n's MIMO, it makes other vendors' networks just look bad. Seriously, if you're looking to deploy a wireless network that will host streaming audio or video, Meru is the best choice (technically or financially). (This was my opinion 5 years ago and it hasn't changed.)
If the Road Show is coming anywhere near you, I recommend signing up for it. You'll get to meet a number of engineers who've been around the block a few times and the food is darned good also (the training (and the food) was at the Occidental Restaurant in DC, near the White House). I believe that it was in the Monument Room that the training was held.
Saturday, May 9, 2009
VirtualBox allows for the use of multi-word names for VMs. One missing piece for VirtualBox is a script to start/stop headless VMs. Various people, such as Ross Peoples and Brendan Kidwell, have written scripts to fill this void.
Tuesday, May 5, 2009
I really need to brush up on my C skills so's that I can fix these on the fly.