Several people have reported a login hang in Net:SSH::Perl in several threads, with no resolution. The problem is described as a long hang after: stephanie: Algorithms, c->s: 3des-cbc hmac-sha1 none stephanie: Algorithms, s->c: 3des-cbc hmac-sha1 none hang here... I have seen this in other forums as well... The problem is Crypt-DH-0.06 ... I backed off to version Crypt-DH-0.03 (which I knew worked) and the problem cleared. I am not sure which version caused the problem (between .03 to .06), but Crypt-DH is the problem for sure.

Downgrading from Crypt::DH 0.06 to 0.03 also fixed an intermittent "Segmentation Fault" problem on a Redhat 7.3 Perl 5.6.1 system. Running the program in perl -d would have the software work. It would sometimes work when run from strace. It would basically never work when run standalone.