TCP/IP Testing help, Round 2

Sean Conner spc at conman.org
Mon Jan 1 02:37:02 CST 2007


It was thus said that the Great Michael B. Brutman once stated:
> 
> Happy New Year!

  Happy New Year!

> I'm back at it again - I plan on doing better this time.  (I've fixed 
> the specific double delete bug that bit me last time, improved tracing 
> quite a bit, and added a lot of consistency checking code.)
> 
> Just like last time, all you need to do is telnet to 24.159.203.149, 
> port 2301.  Once again, that's my Linux box, but today it is forwarding 
> port 2301 to my PCjr.  The commands are slightly enhanced from the last 
> test, but it isn't anything highly interactive.
> 
> Up to 9 people can connect simultaneously.  We didn't get more than 2 or 
> 3 simultaneous connections last time, so I'm probably overly optimistic.

  Well, I tested the nine simultaneous connections and yes, it seems to
work, although pressing ^C causes whatever program is listening on the other
end of the TCP connection to stop responding to commands.

> Here is a picture of the machine you are connecting to, complete with 
> the Western Digital 8003 Ethernet card grafted onto the side:
> 
> http://brutman.com/PCjr_WD_small.jpg

  Very neat.  How did you do that to a PCjr?  Some sort of hacked up ISA bus
or something?

> And lastly, if you remember, type in your OS and machine type as a 
> command.  It will complain about it being an invalid command, but I'll 
> see it in the log and I'll have a better idea of what I'm testing against.

sockets

9 sockets are active, 0 more are available
Ip Address and Port    MSS   State            Started
66.252.226.50:61108    1432  ESTABLISHED      Mon Jan 01 02:13:50 2007
192.168.2.1:3018       1460  ESTABLISHED      Mon Jan 01 02:13:50 2007
66.252.226.50:61097    1432  ESTABLISHED      Mon Jan 01 02:13:50 2007
65.11.56.196:42377     1452  ESTABLISHED      Mon Jan 01 02:13:50 2007
66.252.226.50:61111    1432  ESTABLISHED      Mon Jan 01 02:13:50 2007
66.252.227.139:52611   1460  ESTABLISHED      Mon Jan 01 02:13:50 2007
66.165.166.190:49217   1460  ESTABLISHED      Mon Jan 01 02:13:50 2007
64.124.179.116:36491   1460  ESTABLISHED      Mon Jan 01 02:13:50 2007
204.29.162.199:38999   1460  ESTABLISHED      Mon Jan 01 02:13:50 2007

These (with the exception of the 192.168.2.1 address) are me.  All Linux
systems (2.0 to 2.6) with one Mac mini thrown in.  

  -spc (Oh, and your system clock is a bit off 8-)



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