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An OpenSSH replacement UNIX
When I tried to access securely (with ssh) my work's server (remote) from my iBook (local1) running 10.1.2, I wasn't allowed in, whereas from the faculty's computer (local2), this was no problem at all. I worked through several ssh and sshd config files, but couldn't find any relevant differences, until I noticed that local1 had OpenSSH installed (OS X standard), while local2 and remote used the commercial SSH from SSH Communications Security.

I downloaded the source code at commerce.ssh.com, which is free for non-commercial use. It compiled right out of the box, and was installed in /usr/local, so my original OpenSSH is still intact in /usr. Now I can access remote just as easily from local1 as from local2.

I am somewhat confused, though, since I had supposed OpenSSH and SSH to be completely compatible. If for some reason you would like to run /usr/local/sbin/sshd instead of /usr/sbin/sshd, you could easily accomplish this by changing the relevant line in /System/Library/StartupItems/SSH/SSH.
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they are compatible
Authored by: see on Jan 25, '02 09:48:24AM

openssh and commercial ssh are compatible, you probably just used wrong protocol when trying to communicate. either server uses protocol 2 and client 1 or viceversa.
just try "/usr/bin/ssh -1 user@box" and "/usr/bin/ssh -2 user@box" to see if thats the problem, you can edit /etc/ssh_config on line "# Protocol 2,1" and take away the # and choose order in protocols tested...otherwise it only tests version 1 i think...
hope this solved the problem
/see



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Or you used IDEA keys
Authored by: themostbob on Jan 25, '02 02:39:48PM

OpenSSH lacks the IDEA algorithm for key generation and checking---they only include open, unpatented algorithms and IDEA is patented all over the world, as I understand it. RSA's ran out last year and it's now included, thankfully, so you could use it instead.



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