The Cheswick & Bellovin 'Firewalls and Internet Security' book mentions a
'Relay' program used to to pass mail from the 'Outside' host through 'Inside'
and to 'Research' where the mail is retrieved by the users. Is this relay
program freely available? Where? Is this tcp_wrapper? Are they using UUCP to
distribute their files between bastions or another program (part of upas)?
When will upas be available? Internally does upas have Windows and Mac clients?
Will it support MIME (assuming the files are filtered before being allowed in)?
FWIW: (proposed)
Internet ----- Router ------ Dual-Homed Host ----- Choke Router ----->
>-------Internal Dual-Homed Host ------ Mail and other hosts.
IP forwarding off, static routing (no routed), newest BIND, newest Sendmail,
Solaris 2.4, NFS and NIS+ only on internal hosts.
Thanks,
(I haven't seen this posted on firewalls, went direct first but got no response)
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Opinions expressed are my own and not those of Robert Bosch Corp.
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Christopher L. Werner | Robert Bosch Corporation
System Engineer | 38000 Hills Tech Dr.
(810)553-1389 | Farmington Hills, MI 48331-3417
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