security on unix network

[akb]

we have unix machines on LAN which are mostly SGI or Solaris
machines. One of our remote client (network) wants to access
and administer one of our SUN machine remotely using Telnet
but we do not want him to see our other unix machines on our network. Please let us know how we can prohibit him from hacking into our other unix machines.

 

[d3funct]

You may want to test this yourselves before doing, since I've never had to do this kind of thing before. But, you could try backing up /etc/hosts and keep a copy of this hosts /etc/hosts file on one of the other boxes, then zero out /etc/hosts on this machine and if necessary do the same for /etc/resolv.conf. Just make it so the server cannot see other machines except itself, but still accepts telnet requests. This is just a guess, as I said, I've never had to do this.

Hope it helps. B-) d3funct
borg@pcgeek.net
The software required `Windows 95 or better', so I installed Linux.