secure chat program for Solaris Sun Ray thin clients

I am wanting to know if you have ever found an extremely secure chat program for UNIX (Solaris 7), such that I could control which users can chat with which users, ie John (teacher) can talk to Suzy (student) or Sam (student) and they can talk back to their teacher BUT there is absolutely no way that Suzy can chat with Sam or vice versa. Preferably it would be text-based (not gui although that would be OK) and the systems will have NO access to the internet (a totally standalone network). Hardware is a dual xeon Solaris machine with ~100 Sun Ray thin clients.

ixeye
bccarey@kci.net
ixeyeAsked:
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peter991Connect With a Mentor Commented:
That will tripple your chances.
I did a search and found this :
http://www.ircd-ratbox.org/index.shtml
http://www.ircd-hybrid.com/

Don't forget to secure the solaris-OS as well.
If they can't chat trough the IRC they could use talk, wall or even telnet/ssh/ftp pending on the configured security.

/regards
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ahoffmannCommented:
http://silcnet.org/
http://silcnet.org/docs/
IIRC you can restrict users to access channels.
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svsCommented:
I don't think that your definition of 'secure' is the same as his :)
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peter991Commented:
If you find a irc-server for Solaris 7 you will find there is alot of parameters you can configure such as moderated channels, max amount of channels etc.

I can't recommend any specific software but I found this one:

(The author has successfully compiled Hybrid 7 beta on FreeBSD, Linux Mandrake 7.2, various versions of Solaris, and versions of Redhat.)

http://www.irchelp.org/irchelp/ircd/h7setup.html

I think you would have alot more options if you upgraded your Solaris.

Good luck!
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ahoffmannCommented:
> .. definition of 'secure' is the same as his :)
privacy first, then data (private property), then 100 or so other things, then business, as usual in old europe :-]

@ixeye, I guess you mainly have a social problem where you hardly find a technical solution for
I guess you better teach your users, or restrict access completely.
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ixeyeAuthor Commented:
The users are high-security prisoners :-(
We are going to be upgrading to Solaris 10.
Does that make a difference for anyone's answers?
ixeye
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