Slashback: Public, Anecdotes, Conclusions

It's been a while since the last iteration of Slashback, so tonight there are updates and errata on several recent stories. Read on below to find out more about Harlan Ellison's battle with copyright infringers, why modding your Linksys WAP might not be as cool as you thought, internet access in Wellington, New Zealand, the results of the NASA poll on space priorities and more.

How many anecdotes? Drestin writes "Looks like all the flame mail and traffic to WinInfo for the recent 'Windows more secure than Linux' article prompted it's author, Paul Thurrott, to reply with his opinion. He tells us to think with our heads, not our hearts."

Several readers complained about my original (since updated) headline, and they're all right. As Kathleen Ellis put it:

"I find this title to be rather misleading. Bugtraq is a security mailing list that happens to be archived on security focus' web site (it is also moderated by one of SecurityFocus' founders, but bugtraq content is not subjected to SecurityFocus editorial control), and WinInformant is really the one making the assertion, based on their analysis of Bugtraq list traffic.

As an occasional SecurityFocus reader (and occasional writer), I am particularly concerned that your headline (and the attribution of the assertion to SecurityFocus) will make SecurityFocus look bad. As a professional in "the industry" and as someone who follows computer security very closely, I am confident most sensible members of the security community will quickly realize that the assertion is of extremely dubious merit and your attribution could make SecurityFocus look extremely foolish."

Here, why don't you pay? TheGeneration writes "Recently Salon had an article about public money being used to write private code (ie, for a university.) The article apparently moved Richard Stallman enough to write a response and opinion. Stallman sites his own reason for leaving MIT such as his inability to write free software while under their employ. Stallman discusses ways to sidestep University control of free software, and how to get admins to allow software developed under them to be licensed as free software."

For your personal museum's display cases. airrage writes "As a follow-up to the early design docs for some of the earliest ATARI games. More fascinating, is the 30 Secrets of Atari. Did Jobs ever do any work? Finally, the creater of ATARI's adventure has a web site. Check out his work on virtual nano-technology and his presentation on creating Adventure. They sure didn't have much to work with did they?"

Connecting everything to everything. seanadams.com writes: "Our company has just published the firmware source code for our SliMP3 Ethernet MP3 player, previously reviewed on Slashdot. The firmware, written entirely in assembler, includes our super-compact TCP/IP stack for the 8-bit PIC microcontroller. The license allows for non-commercial use, so I hope this will be of interest to PIC hackers! If you're interested in experimenting with Ethernet and TCP/IP on the PIC, we will have an integrated PIC+CS8900 module and development kits available next month."

Next stop is telepathy. ruvreve writes "An update to a previous article featured here on Slashdot. Wellington is offering not only city-wide gigabit ethernet they are also offering wireless access. Currently it is still 11Mbps but plans are to make it 56Mbps down the road."

Not someone I'd want to mess with anyhow. yndrd writes "As a follow up to a previous Slashdot story about Harlan Ellison's feud with what he considers to be pirates of his work, Ellison has reached a settlement with Critical Path Inc. who will create software that enables Ellison to immediately delete postings of his work on the RemarQ service. The (somewhat) full article is here. He's still ready to rumble with America Online, the other party in his lawsuit."

The dirty side of quick n' dirty. nailgun writes: "http://www.maokhian.com/wireless/wap11.html has before-and-after oscilloscope traces of the spectra of a power-boosted (hacked) Linksys WAP. From the traces it is apparent that power-boosting does no good, since all (or nearly all) additional power is blasted out in neighboring frequencies. Boost your Linksys and you'll step on all other WAPs in the neighborhood. These are cool pictures too."

This took a survey to determine?An Anonymous Coward writes "Remember the Space Survey Thread? Where NASA was asking for our opinion on where to go in space? Well, the results are in. Lo and behold, we all want to go to Mars."

Comments

Harlan Ellison link

[DaSyonic]

The "Harlan Ellison" link points back to Slashdot. It should point to: http://slashdot.org/article.pl?sid=01/03/08/015920 0&mode=nested

For those of us that had no idea what they were talking about...

Re:Sillyscope

[Anonymous Coward]

Yup. And it's worth mentioning that that sort of a mess is what results when you "tweak" pretty well any transmitter blindly.

Adjusting any RF equipment simply for "maximum output power" is a classic no-no: a power meter only tells you the total RF that is being emitted, not how much of it is being emitted where it's actually supposed to be. It's actually possible in some cases to decrease the power output in the frequency band you want, even while increasing the overall power output.

Remember when Harlan Ellison was *GOOD?*

[dr_eaerth]

Ellison has reached a settlement with Critical Path Inc. who will create software that enables Ellison to immediately delete postings of his work on the RemarQ service.

I could barely give a crap about Harlan having ubercancel powers over Supernews's servers, except as it leads to this:

There's a reason that usenet servers almost never respect cancels, and that's frivolous cancelling. It's destroyed froups in the past. Now once Supernews engineers their servers to allow Harlan to cancel any posting he has a personal problem with, there's no reason why others can't also have this power. Universal Music Group will ask for the same thing, followed by all the RIAA. And so on and so forth.

If Critical Path gives it them (and why wouldn't they?), Supernews will turn into a wasteland with as close to 0% binary completion as makes no odds. Harlan has gutted his chosen usenet service.

Next stop for me, Giganews. At least until Harlan gets to them.

Re:Stallman's right, you know...

[Lakitu]

Please. that's bad logic. Microsoft doesn't even use the BSD-licensed TCP/IP stack anymore, they wrote their own - and they probably only used it in the first place because it was already done for them. Don't you think they could've written their own code?

Microsoft does a lot of things wrong, you don't have to go looking for trouble that doesn't exist. You just lose credibility.

Jobs and Wozniak?

[PhotoGuy]

I had always pictured Wozniak as the tehcnical genius behind Apple, Jobs as the guy who was btter able to commercialize and sell the product. But both as key partners, and ethical in their behaviour.

I've read Jobs is hard on his employees, but I've seen that some of the best and most successful leaders sometimes are.

Then I read this:

Bushnell assigned Steve Jobs to design the circuitry for Breakout, but it was too difficult for Jobs. He asked his friend (and Apple co-founder) Steve Wozniak to help, and promised to split the payment from Bushnell. Wozniak did it in four days and was paid $350. But it turned out that Bushnell actually paid $5,000 for Breakout -- Jobs pocketed the remaining $4,650.

Now, over the years, partially due to misrepresentations of myself in the media, I've learned to take public reports with a grain of salt. Anyone have any confirmation or details on the above statement?

My opinion of Wozniak (which couldn't be higher), wouldn't be harmed; but my business admiration for Jobs would be seriously affected if this were true. I don't mind business people being harsh, as long as they're fair, and this most certainly wouldn't have been, if it were true.

(On the other hand, I've seen people with big egos justify in their own mind that they were due the majority of the benefit, while "worker bees" did all the work. So it might just be a case of that...)

-me

Re:Jobs and Wozniak?

[PhotoGuy]

For those not taking the time to dig it up themselves, on woz.com:

I was hurt in later years when I heard that Steve was paid more than he'd told me, and I don't think that I hurt easily. But it was a long time ago and I prefer to get away from it. Steve has always been a good friend to me in many ways more than just palling around. It's so ancient that maybe it didn't happen, and maybe the Atari people that said it and wrote it were wrong in their own memories. I do believe that this is possible. Also, if my own self, or my own children, or my own friends did such a thing in their life, it's easy to excuse it if the circumstances were as I described. It's not 'necessarily' akin to stealing. If there was some dishonesty, I'm over that. Who hasn't done some things that would be considered bad, anyway? I doubt that I'd find such a person interesting.

Ouch! What a guy! From my perspective, that only enhances my view of Woz, and diminishes that of Jobs. He discovered Jobs probably screwed him, but prefers to make bygones be bygones. Maybe he's just naive, or maybe he's just a great guy (I really suspect the latter). I hope to be that big a man someday about folks who have screwed me over in my career.

More power to the Woz. He exudes hard work, talent, integrity, caring, and understanding. We should all do so well to live up to that.

I used to get a chuckle out of the Simpeons' line, regarding the US festival, "the guy from *what* computer?" But the guy was obviously trying to make a difference and have an impact on society back then, just as he does now in more personal ways through his teaching career. He's one of the few real heroes out there in this industry. I raise a glass to you, Woz...

-me

Changing WAP11 power output.

[funky womble]

WAP11 tuning can (and should) be done a bit more carefully than just opening up the SNMP utility and typing '80' in all the boxes.

Looking at different values and monitoring with wlanexpert I see that on my WAP11s, near the factory setting the adjustment is very sensitive (i.e. small change in CR31 = large change in signal strength). The 20-30 values around it (maybe something like B0-C8 on the AP I have been testing) account for about 7-8dBm of difference.

CR31 settings outside this range have much less effect on signal strength - perhaps 1-2dBm.

I would be interested to know how clean the output is when the amplifier is set to the lowest amount (i.e. highest CR31 value) for the maximum signal strength measured.

I assume that above this value there will be a lot of distortion. (I'm not an RF engineer and would appreciate comments from anyone who is, but I assume it is similar to audio amplification - if so, imagine you have an amplifier and the inputs are turned up much louder than can be handled - the output doesn't get louder, it just gets more and more distorted. I assume that the situation here is similar.)

The question I would like to have answered is, at this value, is there still a serious amount of power into the sidebands? (Answering this requires access to a spectrum analyser - so this is just a question not a suggestion! Still, setting like this is at least not likely to cause worse problems than setting at 80, and isn't going to reduce the range).

Values below 80 react quite strangely, I didn't test very much since I found many values reducing power below the card's sensitivity (so I had to run up and down several flights of stairs to reset CR31 from the wired lan, which was very good exercise!). So...

People who want to reduce the power output to the minimum, possibly to keep the footprint of their WLAN as low as possible maybe to avoid interfering with neighbours, or so that passers-by are less likely to stumble across it, should definitely try different values below 80 as well as above 80 - at least on my boxes <80 is not a mirror of >80. (and use carefully positioned carefully chosen antennas, turn off SSID broadcasts, enable WEP, etc.)

I hope that everybody noted their default settings before modifying CR31 ;-) My two boxes (bought at the same time) came set to ...

c7-c7-c7-c7-c5-c3-c1-c1-bf-bf-bf-bf-bf-be
c7-c7-c7-c7-c7-c5-c3-c3-c1-c1-c1-c1-c1-c1

So this definitely seems to be done per-unit and not per-batch. (And, these are different to figures I've seen quoted in mailing list posts).

Presumably they are factory-tuned for the best trade-off between good range and a clean signal, without putting too much power into the sidebands, and probably with a safety margin so that this remains true while the unit ages and if it's operated in different temperatures (electronic components are not at exactly the rated value, they are usually within a certain tolerance, the software setting is to account for this - in other designs this might be done using, for example, variable resistors). And obviously the factory settings will be tuned to ensure that the unit is within FCC limits (for example, ensuring that transmissions stay within the ISM band so you're not broadcasting into licensed bands without a license, which you might be if you adjust CR31 without testing with proper equipment or filtering to remove out-of-band transmissions).