Greetings,
Enough has happened since my last blog that I decided to write a new one even though the only real thing I can say is that I have officially released my first product, Small Wide World. But I decided before I wrote this blog that I was only going to advertise it once or twice. This blog is about stuff that I think is cool. And there are a lot more cool things than my small project that does a few cool things and draws a few pretty graphs.
Entrepreneurship besides the whole hacking part is about selling stuff. It is a strange and interesting process that has a lot of issues. Issues like Paypal's IPN being non-trivial to secure. Issues like advertising taking way too much time and effort, but really being the only way to sell a product. Issues like hiring people being a massive money sink and being the way to earn large amounts of money. These issues I plan to figure out in the next year. And you're likely to hear about them in spades if you check back in a month or two.
What about things that are not related to my making money. Okay, lemme see.. Hanging out with friends has become a more important part of my life more recently. I would like to think that Dodgeball has helped with this, but a lot of factors have changed my normally non-social hours to social hours. I think that one thing that has caused it is my recent experiment with serotonin. (No, I haven't been injecting it.) I have been testing what things change my moods and hypothesizing that each time I have a mood swing, it's being caused by serotonin levels changing rapidly. What causes serotonin levels to change rapidly? If my experiment was done today and I had to turn in my results, I would say with a lot of qualifiers and maybes that the three things that increase serotonin levels are: caffeine, music, and exposure to friends. I haven't really found things that reduce serotonin levels specifically and reliably. But if you're me, you don't really want to decrease serotonin levels. Adjacent and related but not equal to moods are productivity, interest, and respect for life. While these things are obviously helped by better moods, there's certain factors that can change each of these. Stabilizing my mood is important to me, but often I want to play on the side of too good of a mood. How does one test whether they are in too good a mood? I went to the Infected Mushroom show (I didn't go in because I'm too poor) on Friday and took some interesting pills that made me really happy and I was really productive at Last Supper Club and for 6 hours when I got home.
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Joel R. Voss
jvoss@myuw.net
I have a box in <company>'s rack (207.244.153.137). I have noticed that although everything works perfectly (431 days uptime) I have a problem with data transfer rates to machines in the Westin (2ms and 4 hops away). I suspect that there is some type of router that is seriously mucking stuff up with the link. It makes sense that it'd be on your turf. I thought I'd let you know and see what you think. It's quite likely that I'll be moving my server to the Westin soon, but it is important for you to ensure proper workings of your systems. Also if I ever want to host something in Bothell, I'd go with your company.
From DSL, I can get 140KB/s from my server in <company>'s rack or from the Westin. From my server in <company>'s rack, I get uneven 40KB/s and 80KB/s from the Westin. It is very pronounced. What is going on?
Read more »Network Mapping 4
jvoss@altsci.com
jvoss@myuw.net
May 13, 2007
Source not yet available. It will be available soon.
Visualization of networks is an interesting topic whether the networks are intranet, ethernet, real world, social or inside a program tree. I have written software that simply maps data arbitrarily so that it can be seen. It sorts itself and is very quick. It outputs to SVG, which can be scaled, accessed via xml dom, modified, regexed, and output to raster formats (PNG, GIF, JPEG, etc).
jvoss@altsci.com
jvoss@myuw.net
May 1-7, 2005
TCP Dump and libpcap
Wireshark
Libpcap is a very simple library to get the data from packet capture files. TCP Dump is a program that captures data from interfaces. It can also print the data it captures in realtime or later. Wireshark is a GUI program that reads cap files (and can also capture data) and displays the information very well.
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