Ask Your Question

Revision history [back]

I've isolated the problem to the client/server SSH interaction. I found that on the client side (ubuntu 14.04) when I add the following parameter to ssh_config:

MACs hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160

I can successfully login to both the cirros and the ubuntu precise instances! Strangely, even with this configuration parameter, SSH still hangs on the fedora instance after

debug1: SSH2_MSG_KEXINIT sent

I really don't know why specifying this MACs list in ssh_config is working, since on several of any successful ssh connections I've looked at, they always seem to be using hmac-md5, which is first in the list both in the config option I set above, and higher in precedence than the others as specified in the man page for ssh_config. Perhaps someone who knows more about SSH can help on this? Better understading this might help with solving the hangup with the fedora instance!

I've isolated the problem to the client/server SSH interaction. I found that on the client side (ubuntu 14.04) when I add the following parameter to ssh_config:

MACs hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160

I can successfully login to both the cirros and the ubuntu precise instances! Strangely, even with this configuration parameter, SSH still hangs on the fedora instance after

debug1: SSH2_MSG_KEXINIT sent

I really don't know why specifying this MACs list in ssh_config is working, since on several of any successful ssh connections I've looked at, they always seem to be using hmac-md5, which is first in the list both in the config option I set above, and higher in precedence than the others as specified in the man page for ssh_config. Perhaps someone who knows more about SSH can help on this? Better understading this might help with solving the hangup with the fedora instance!

I've isolated the problem to the client/server SSH interaction. I found that on the client side (ubuntu 14.04) when I add the following parameter to ssh_config:

MACs

MACs hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160

I can successfully login to both the cirros and the ubuntu precise instances! Strangely, even with this configuration parameter, SSH still hangs on the fedora instance after

debug1: SSH2_MSG_KEXINIT sent

I really don't know why specifying this MACs list in ssh_config is working, since on several of any successful ssh connections I've looked at, they always seem to be using hmac-md5, which is first in the list both in the config option I set above, and higher in precedence than the others as specified in the man page for ssh_config. Perhaps someone who knows more about SSH can help on this? Better understading this might help with solving the hangup with the fedora instance!