[OpenIndiana-discuss] Slow ssh login?

gary at genashor.com gary at genashor.com
Fri Oct 19 22:59:32 UTC 2012

+1 I've been trying to figure this out for years. But mine is on bare metal. I tried everything I could think of but no luck. The strange thing is that it sometimes is fast, but most times I wait about several seconds.


On Oct 19, 2012 6:53 PM, Dan Swartzendruber <dswartz at druber.com> wrote: 

Hi, all.  I've got an issue that is bugging me.  I've got an OI 151a7 VM and

ssh to it takes 15 seconds or so, then I get a prompt.  It's not the usual

reverse dns or gssapi stuff, since my backup node is also OI 151a7 and it

responds instantly to the ssh request.  Google has not turned up anything

useful except for the usual suspects that are innocent in this case.  The

only hint I can see is if I give '-v' on the client, I see this:

OpenSSH_5.9p1 Debian-5ubuntu1, OpenSSL 1.0.1 14 Mar 2012

debug1: Reading configuration data /etc/ssh/ssh_config

debug1: /etc/ssh/ssh_config line 19: Applying options for *

debug1: Connecting to nas [] port 22.

debug1: Connection established.

debug1: identity file /home/dswartz/.ssh/id_rsa type -1

debug1: identity file /home/dswartz/.ssh/id_rsa-cert type -1

debug1: identity file /home/dswartz/.ssh/id_dsa type -1

debug1: identity file /home/dswartz/.ssh/id_dsa-cert type -1

debug1: identity file /home/dswartz/.ssh/id_ecdsa type -1

debug1: identity file /home/dswartz/.ssh/id_ecdsa-cert type -1

debug1: Remote protocol version 2.0, remote software version Sun_SSH_1.5

debug1: no match: Sun_SSH_1.5

debug1: Enabling compatibility mode for protocol 2.0

debug1: Local version string SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1

debug1: SSH2_MSG_KEXINIT sent

(the delay is here)

debug1: SSH2_MSG_KEXINIT received

debug1: kex: server->client aes128-ctr hmac-md5 none

debug1: kex: client->server aes128-ctr hmac-md5 none

debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent

debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP

debug1: SSH2_MSG_KEX_DH_GEX_INIT sent

debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY

debug1: Server host key: RSA 8c:78:a0:17:6b:17:1b:bf:83:69:a3:bf:59:df:18:07

debug1: Host 'nas' is known and matches the RSA host key.

debug1: Found key in /home/dswartz/.ssh/known_hosts:9

debug1: ssh_rsa_verify: signature correct

debug1: SSH2_MSG_NEWKEYS sent

debug1: expecting SSH2_MSG_NEWKEYS

debug1: SSH2_MSG_NEWKEYS received

debug1: Roaming not allowed by server


debug1: SSH2_MSG_SERVICE_ACCEPT received

debug1: Authentications that can continue:


debug1: Next authentication method: publickey

debug1: Trying private key: /home/dswartz/.ssh/id_rsa

debug1: Trying private key: /home/dswartz/.ssh/id_dsa

debug1: Trying private key: /home/dswartz/.ssh/id_ecdsa

debug1: Next authentication method: keyboard-interactive

Any thoughts where to look?  It's got to be something that is different

between the two OI hosts, but offhand, I'm not sure where to look.



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