[ale] /bin/login versus telnet

[kschmidt at mindspring.com]

Hi,

I just posted this to Usenet, but I figured I might get a quicker
response from the experts on ALE.


How does running /bin/login from a shell differ from logging into a
box via telnet or ssh? I have a client application that uses RSA to
gather security logs from an IDS device. When the RSA public key is
created on the client, it is tied to the user that created the key.
This key is then copied to the server running the IDS software. The
only way to run the client is to either ssh or telnet to the box and
log in as the user that created the keys. I can't ssh or telnet in as
a different user and then run "su - user" and run the client
application; it doesn't work. And neither does running /bin/login from
a shell. Even if I log in as the user that can run the application,
/bin/login still doesn't work.

Does anyone have any idea what's going on here? The application also
does some funky stuff with /dev/tty that I'm still not really clear
about -- this may or may not be part of the problem. I'm running
RedHat Linux, kernel version 2.2.16.

Thanks,
-Kevin


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