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- Xref: sparky comp.protocols.tcp-ip:5709 comp.unix.bsd:10522
- Newsgroups: comp.protocols.tcp-ip,comp.unix.bsd
- Path: sparky!uunet!caen!mtu.edu!tony
- From: tony@mtu.edu (Tony Dal Santo)
- Subject: Re: Limiting Telnet access.
- Message-ID: <1992Dec21.211508.9555@mtu.edu>
- Organization: Michigan Technological University
- References: <1992Dec17.230214.16501@vector.dallas.tx.us>
- Date: Mon, 21 Dec 1992 21:15:08 GMT
- Lines: 20
-
- tbo@vector.dallas.tx.us (Terry Bohaning) writes:
- >I've recently become very concerned about the security of many of
- >the Unix workstations under my care. Some of the users are overly
- >free with their passwords and I would really like to limit access
- >to the systems.
-
- Along these lines, I am curious if anyone has an idea how to allow
- certain users access to the network, and deny others. Something
- like putting the user in group "network" to grant them access. By
- access, I mean system call level access like socket(). Even better
- would be to provide a list of addresses/networks that are restricted/
- allowed.
-
- I imagine with a streams implementation of tcp/ip, you could change
- the perms on /dev/ip or /dev/tcp.
-
- Does anyone have any utilities for tracing a TCP port to a process number?
-
- Tony Dal Santo
- tony@mtu.edu
-