Leopard SSH problems

Question

I get a lag when I try to SSH to our server. I've been searching around and there were a bunch of SSH/DNS problems early in Leopard's lifetime. How have they not fixed this? I'm running 10.5.8.
I found this thread on this forum. This is the response that helped me:
*Re: Upgraded to leopard and now ssh is HORRIBLY slow*
*Posted: Nov 2, 2007 12:56 PM in response to: davshirley *
*ok. it is slow if my /etc/resolve.conf contains what dhcp is putting there:*
*nameserver 192.168.15.1*
*If I add two nameservers that I control and allow recursion from my location I get fast connections:*
*nameserver 67.131.250.9*
*nameserver 67.131.250.12*
*nameserver 192.168.15.1*
*Now here's the interesting part:*
*The two nameservers that I am adding to /etc/resolve.conf are the VERY SAME nameservers that my router at 192.168.15.1 is set to use and assign for all dhcp clients. This suggests to me that there is a bug in how ssh handles dns lookups since the first /etc/resolve.conf should work (and does work fine in 10.4)*
HOWEVER, all that works is removing the DNSs from the list. That allows me to SSH right in. No lag. But then I get no internet. If there are DNSs in the list, I get slow SSH but I get internet.
Any ideas? Is the problem my router or Leopard itself?

Answer 1

Hi all,
Not sure if this is related or not, but I am having problems with ssh hanging after a password is entered. The hang is interminable - I will come back tens of minutes later and it will still be hanging.
My machine is usually connected wirelessly to either a network on campus or at home.
Here is a typical output from ssh -v:
fi221-215:~/.ssh] ericperlman% ssh -v [email protected]
OpenSSH_5.1p1, OpenSSL 0.9.7l 28 Sep 2006
debug1: Reading configuration data /etc/ssh_config
debug1: Connecting to yoda.astro.fit.edu [163.118.205.171] port 22.
debug1: Connection established.
debug1: identity file /Users/ericperlman/.ssh/identity type -1
debug1: identity file /Users/ericperlman/.ssh/id_rsa type -1
debug1: identity file /Users/ericperlman/.ssh/id_dsa type 2
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.1
debug1: match: OpenSSH_5.1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.1
debug1: SSH2MSGKEXINIT sent
debug1: SSH2MSGKEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: SSH2MSG_KEX_DH_GEXREQUEST(1024<1024<8192) sent
debug1: expecting SSH2MSG_KEX_DH_GEXGROUP
debug1: SSH2MSG_KEX_DH_GEXINIT sent
debug1: expecting SSH2MSG_KEX_DH_GEXREPLY
debug1: Host 'yoda.astro.fit.edu' is known and matches the RSA host key.
debug1: Found key in /Users/ericperlman/.ssh/known_hosts:1
debug1: sshrsaverify: signature correct
debug1: SSH2MSGNEWKEYS sent
debug1: expecting SSH2MSGNEWKEYS
debug1: SSH2MSGNEWKEYS received
debug1: SSH2MSG_SERVICEREQUEST sent
debug1: SSH2MSG_SERVICEACCEPT received
debug1: Authentications that can continue: publickey,gssapi-with-mic,password
debug1: Next authentication method: publickey
debug1: Trying private key: /Users/ericperlman/.ssh/identity
debug1: Trying private key: /Users/ericperlman/.ssh/id_rsa
debug1: Offering public key: /Users/ericperlman/.ssh/id_dsa
debug1: Authentications that can continue: publickey,gssapi-with-mic,password
debug1: Next authentication method: password
[email protected]'s password:
debug1: Authentication succeeded (password).
debug1: channel 0: new [client-session]
debug1: Requesting [email protected]
debug1: Entering interactive session.
I seem to remember that one used to be able to solve this problem by deleting the known_hosts file in .ssh. I have tried this and it did nothing.
Does anyone have any ideas?