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Date:      Thu, 8 Jun 2000 04:05:43 -0400 (EDT)
From:      Trevor Johnson <trevor@jpj.net>
To:        Ataualpa Albert Carmo Braga <atabraga@iqm.unicamp.br>
Cc:        questions@FreeBSD.ORG
Subject:   Re: Open ports
Message-ID:  <Pine.BSI.4.21.0006080346390.1366-100000@blues.jpj.net>
In-Reply-To: <14655.19634.777776.268481@bico-de-lacre.iqm.unicamp.br>

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> 111

Turn off your portmapper.  You'll have trouble with services listed in
/etc/rpc, such as NFS.

> 514

Turn off rshd.  Use sshd instead.

> 515

Turn off lpd.  You'll have trouble printing.

> 1024

I don't know.

> 6000

Use the "-nolisten tcp" option when running X, or don't run it at all.  X
clients on other systems won't be able to use your computer's display.

> 6010

This could be X again.

The uses of various ports are listed in /etc/services.  You can tell which
ports are open, and what's returned upon connecting to them, with the
strobe and netcat utilities.
--
Trevor Johnson
http://jpj.net/~trevor/gpgkey.txt



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