Computer Tips -Tech Info

One of the things I didn’t mention in my first skype post was the “getting skype to work with linux” bit… The version available via urpmi in Mandrake was 1.2, so I installed it (before I had the usb audio phone) and gave a try. It gave consistent errors trying to access the audio device (/dev/dsp). I looked and it seems that the older 1.2 version used OSS exclusively for this and had LOT’S of problems. I did find that version 1.3 that can use either OSS or ALSA seemed to work flawlessly on the three systems I tested. (Two of them Mandriva 2006 and the test box Ubuntu 6.06.1) The testbox didn’t have a sound card prior to the usb phone, the other two had built in sound and that is what was tested.

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I’ve seen skype I just haven’t used it personally until very recently. In fact there was a place (dialpad?) that I had used once upon a time for a few free long distance calls online. It was neat, but had some limitations (delay). It quickly became non-free and frankly the microphone I have hooked up to the PC fell back in the corner beside the desk and I haven’t dug it out in quite a while. A few weeks ago though my Dad discovered Skype and ordered a cheap ($17) “phone” that plugs into the usb port of the pc and can be used with skype and a variety of other services. (in fact, it works as a generic usb sound card so… there might be other possibilities for using it to record wav files directly, etc.)

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This was weird and now that the switch is replaced I haven’t been able to duplicate it, but let me explain. There was a netgear fs608 (8 port unmanaged) switch plugged into a linksys router (model number not noted.) The cable was straight (although the fs608 has support for link through straight or crossover cables.) This setup worked well for quite some time. 4 computers and a printer hooked up. 3 pcs with fixed address and 1 with DHCP for their IP address. Well, I had a call that two pcs were unable to connect to the network and when I got there and looked… sure enough 169.**** ip addresses from Microsoft’s “auto configure” pool.

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NO, I didn’t mean to type satellite. Stratellite. This is an idea that I’ve written on before and I think it has some interesting possibilities. The idea is to positition a large airship (helium balloon of sorts) in the stratosphere. Put it above the steering currents of the jet stream and equip it with the ability to stay in a fixed place for months at a time. Also, put antennas on it. For what? Whatever you need…. cell phone coverage… a wireless internet transceiver of some sort? etc.

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I’m having to make sure I put the date in the title of these posts now…. over the weekend there were rumors of a new powerpoint vulnerability. Sans had an early notice of some trojan droppers using powerpoint files. And by the 20th (Sunday) it was being called a 0-day. There is a good FAQ over at securiteam.com.

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I’ve got a slew of articles open that I’ve been holding to post about. I’ve also got a few other things to post, so this may be a busy posting afternoon. There’s quite a bit going on here, but things are RELATIVELY quiet out on the internet it looks like. A flurry of typing going on….

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A couple weeks ago the hot story was about the demonstration of a vulnerability in a 3rd party wireless card driver on a Mac. The individuals that demonstrated the vulnerability (in a video taped presentation) also claimed that many wireless drivers were vulnerable to this same flaw and it included the MacBook native drivers (among others.) There was immediate controversy over the fact it was a video demo. I thought their explanation for that was reasonable. (They didn’t want to give a room full of crackers a chance to sniff the wireless traffic and get TOO much detail on the exploit before vendors had a good chance to give updates.) Well… at this point it sounds like among other things, they have not yet demonstrated to Apple an effective use of this exploit against the wireless drivers on the macbook.

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Incidents.org has been running their security tip a day this month and I really liked this one. It’s essentially a way to encrypt your wireless traffic using ssh. That’s something I’ve covered here before, but it’s worth reminding that it’s possible and a good idea.

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The title really says most all, it looks like you can get a preconfigured mythtv box starting at $695. Prebuilt, preconfigured no muss/no fuss. (No subscription fees like the tivo’s…)

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Sans has updated their chart that illustrates Microsoft’s August patches. They’ve updated it to give information about the problems that have been reported with now 2 of this months patches (MS06-040 and MS06-042) as well as what fixes are available.

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