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April 2002, Week 1

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Subject:
Re: Internet Services
From:
Andreas Schmidt <[log in to unmask]>
Reply To:
[log in to unmask]
Date:
Fri, 5 Apr 2002 15:08:45 +0100
Content-Type:
text/plain
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text/plain (93 lines) 
we have only telnet and ftp running:

# echo         stream tcp nowait MANAGER.SYS internal
# echo         dgram  udp nowait MANAGER.SYS internal
# daytime      stream tcp nowait MANAGER.SYS internal
# daytime      dgram  udp nowait MANAGER.SYS internal
# time         stream tcp nowait MANAGER.SYS internal
# time         dgram  udp nowait MANAGER.SYS internal
# discard      stream tcp nowait MANAGER.SYS internal
# discard      dgram  udp nowait MANAGER.SYS internal
# chargen      stream tcp nowait MANAGER.SYS internal
# chargen      dgram  udp nowait MANAGER.SYS internal
telnet       stream tcp nowait MANAGER.SYS internal
# bootps       dgram  udp wait   MANAGER.SYS /SYS/NET/BOOTPD bootpd
# tftp         dgram  udp wait   USER.TFTP /SYS/NET/TFTPD tftpd
ftp          stream tcp nowait MANAGER.SYS /SYS/ARPA/FTPSRVR ftpsrvr

You can definetly stop tftp (trivial ftp).

telnet and ftp are the listening processes so that you will stop the incoming traffic.

Best regards, Andreas Schmidt, CSC, Germany





Robert Mills <[log in to unmask]>@RAVEN.UTC.EDU> on
05/04/2002 15:04:26

Please respond to Robert Mills <[log in to unmask]>

Sent by:  HP-3000 Systems Discussion <[log in to unmask]>


To:   [log in to unmask]
cc:
Subject:  [HP3000-L] Internet Services


Environment: 979/200 running MPE/iX 6.5 + all reactive patches.

Our INETDCNF currently looks as follows:

echo         stream tcp nowait MANAGER.SYS internal
echo         dgram  udp nowait MANAGER.SYS internal
daytime      stream tcp nowait MANAGER.SYS internal
daytime      dgram  udp nowait MANAGER.SYS internal
time         stream tcp nowait MANAGER.SYS internal
time         dgram  udp nowait MANAGER.SYS internal
discard      stream tcp nowait MANAGER.SYS internal
discard      dgram  udp nowait MANAGER.SYS internal
chargen      stream tcp nowait MANAGER.SYS internal
chargen      dgram  udp nowait MANAGER.SYS internal
telnet       stream tcp nowait MANAGER.SYS internal
tftp         dgram  udp wait   USER.TFTP /SYS/NET/TFTPD tftpd
swat         stream tcp nowait.400 MGR.SAMBA /usr/local/samba/bin/swat swat
-a
ftp          stream tcp nowait MANAGER.SYS /SYS/ARPA/FTPSRVR ftpsrvr

My questions are:

1) Would removal of the 'ftp' entry ONLY prevent inbound ftp access OR
would
it have additional side-effects?
2) Would removal of the 'telnet' entry ONLY prevent inbound telnet access
OR
would it also prevent outbound telnet?
3) As we don't use bootp then is the 'tftp' entry required?

regards,
*****************************
Robert W.Mills, Systems Development Manager, Windsong Services
Electron House, Cray Avenue, St. Mary Cray, Kent BR5 3PN, ENGLAND
Tel: +44 (0)1689.870622 x 3005  Fax: +44 (0)1689 899026
[log in to unmask]
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The thoughts, comments, and opinions expressed herein are mine.
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