I have the same problem and it is quite simple to repeat even on your local computer:
[~]$ssh -vvv localhost OpenSSH_5.1p1 Debian-5ubuntu1, OpenSSL 0.9.8g 19 Oct 2007 debug1: Reading configuration data /home/cowbud/.ssh/config debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to localhost [::1] port 22. It will hang at debug1 for a good 5 minutes then continue on to IPv4. This is really a drag when I connect to a remote ssh server and forward a lot of ssh ports to random local ports. It makes sshing to localhost painfully slow. However if I ssh to 127.0.0.1 it goes immediately since it bypasses all ipv6 fun. -- ssh hangs in initial handshaking when using IPv6 https://bugs.launchpad.net/bugs/281882 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs