[DGD] Problems when not on localhost

[Erwin Harte]

On Thu, Nov 21, 2002 at 07:27:55PM -0800, Noah Gibbs wrote:
> On Thu, 21 Nov 2002, Erwin Harte wrote:
> 
> > On Thu, Nov 21, 2002 at 04:03:53PM -0800, Noah Gibbs wrote:
> > [...]
> > > > - firewall?
> > > 
> > >   Nope.  Maybe at work, but that shouldn't affect outbound
> > > connections.  No firewall inbound.
> > 
> > Right, I can get to 22 (ssh) and 25 (smtp), 80 (http).
> 
>   Actually, MonkeySpeak isn't my machine.  So yes, Tom is running a
> firewall :-)  Still shouldn't affect outbound connections.  My machine is
> at 207.214.111.195, with no particularly useful hostname.

Heh, good for Tom.

On the above ipnumber, this is the difference:

$ tcptraceroute 207.214.111.195 22
Selected device ppp0, address 66.138.125.181, port 4115 for outgoing packets
Tracing the path to 207.214.111.195 on TCP port 22, 30 hops max
[...]
 9  rback1-fe2-0.snfc21.pbi.net (206.171.134.171)  78.851 ms  80.819 ms  78.725 ms
10  adsl-207-214-111-195.dsl.snfc21.pacbell.net (207.214.111.195) [open]  93.235 ms  95.897 ms  100.766 ms

$ tcptraceroute 207.214.111.195 6047
Selected device ppp0, address 66.138.125.181, port 4116 for outgoing packets
Tracing the path to 207.214.111.195 on TCP port 6047, 30 hops max
[...]
 9  rback1-fe2-0.snfc21.pbi.net (206.171.134.171)  78.334 ms  79.101 ms  78.773 ms
10  * * *

$ tcptraceroute 207.214.111.195 25
Selected device ppp0, address 66.138.125.181, port 4117 for outgoing packets
Tracing the path to 207.214.111.195 on TCP port 25, 30 hops max
[...]
 9  rback1-fe2-0.snfc21.pbi.net (206.171.134.171)  78.196 ms  78.847 ms  78.481 ms
10  adsl-207-214-111-195.dsl.snfc21.pacbell.net (207.214.111.195) [closed]  93.025 ms  95.459 ms  94.772 ms

Port 6047 is 'dropped', port 25 sends a 'no open port here' back, and
port 22 is open.  To me this indicates you are running some sort of
firewall/filtering software.  The same sort of 'dropping' also happens
on various other ports under and over 1024.

Sounds like you and your linux distribution will have to get to know
eachother a little bit more intimately. ;)

Cheers,

Erwin.
-- 
Erwin Harte <harte at xs4all.nl>
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