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Re: Secure Telnet
- To: jhall_(_at_)_vandaliamo_(_dot_)_net
- Subject: Re: Secure Telnet
- From: Kevin Kinsey <kdk_(_at_)_daleco_(_dot_)_biz>
- Date: Tue, 13 Feb 2007 19:14:19 -0600
- Cc: freebsd-questions_(_at_)_freebsd_(_dot_)_org
I am working with one of my vendors and they are asking for a secure
telnet program on my FreeBSD box.
> What's wrong with ssh?
Indeed. Perhaps you can tell us what client the vendor is using; it
seems likely that most programs that do "secure telnet" will also talk
to sshd. If they're using Windows (most likely) and don't have a
particular "must use" client, PuTTY is fine, and does SSH and telnet
Interestingly enough, if you take a look at the Makefile in
src/libexec/telnetd/ it seems to indicate that FreeBSD's telnetd is
compiled with SSL support; you might attempt telnet from within the BSD
box and see if it works, as telnet(1) seems to indicate that data is
encrypted by default. Grab packets and see if you can read things like
passphrases ;-) 
Can anyone recommend a port for the secure telnet program, or a source
where I can obtain one?
I was able to make rlogin work (from my laptop), but I was not able to use
rlogion from the FreeBSD box since I need to connect to a non-standard
Interesting choice of numbers; ssh is port 22. Are you sure they're not
open to using ssh?
I wouldn't think of rlogin as an alternative, and, no, the manpage
doesn't seem to indicate this. Also, unless this system isn't publicly
available (and the need for "secure telnet" from a "vendor" seems to
indicate that this isn't the case), you shouldn't allow rlogin; once
again, ssh can do anything rlogin/rsh can, and do it with encryption.
As an alternative, is it possible to make the rlogin client
connect to a non-standard port?
DaleCo, S.P. (Jasper, MO!!! Hi!)
 Keep in mind that there **must** be a reason why SSH is preferred
over telnet, even if telnet supports SSL/Kerberos/TLS/Whatever, and
encourage the use of ssh from your vendor if possible.
Progress is impossible without change, and those who
cannot change their minds cannot change anything.
-- George Bernard Shaw
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