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Home > Archive > Unix administration > February 2004 > trace port
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| Roger Keays 2004-02-05, 7:34 pm |
| Anybody know how I could figure out where in the network a port is being
filtered? Kind of like traceroute, but for ports?
I can't connect to my mail servers on port 25... I figure it is an ISP trying
combat spam (?)
Cheers,
Roger
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| Barry Margolin 2004-02-06, 8:35 am |
| In article <40235966$0$28870$afc38c87@news.optusnet.com.au>,
Roger Keays <r.keays@ninthave.net> wrote:
> Anybody know how I could figure out where in the network a port is being
> filtered? Kind of like traceroute, but for ports?
Search for tcp_traceroute.
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Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***
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