When I try to log into remote linux (ubuntu) machines from my MacBook Air (10.6), I get about a 4-5 second delay each time before I get promoted for the password. Verbose yields the following:
:~ ssh -v username@IPADDRESS OpenSSH_5.2p1, OpenSSL 0.9.8r 8 Feb 2011 debug1: Reading configuration data /etc/ssh_config debug1: Applying options for * debug1: Connecting to 184.108.40.206 [220.127.116.11] port 22. debug1: Connection established. debug1: identity file /Users/Fabrice/.ssh/identity type -1 debug1: identity file /Users/Fabrice/.ssh/id_rsa type -1 debug1: identity file /Users/Fabrice/.ssh/id_dsa type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.8p1 Debian-1ubuntu3 debug1: match: OpenSSH_5.8p1 Debian-1ubuntu3 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.2 debug1: Unspecified GSS failure. Minor code may provide more information No credentials cache found debug1: Unspecified GSS failure. Minor code may provide more information No credentials cache found debug1: Unspecified GSS failure. Minor code may provide more information debug1: SSH2_MSG_KEXINIT sent 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: Host '18.104.22.168' is known and matches the RSA host key. debug1: Found key in /Users/Fabrice/.ssh/known_hosts:6 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received **------------------- 4-5 seconds Delay -----------------------** debug1: Authentications that can continue: publickey,password debug1: Next authentication method: publickey debug1: Trying private key: /Users/Fabrice/.ssh/identity debug1: Trying private key: /Users/Fabrice/.ssh/id_rsa debug1: Trying private key: /Users/Fabrice/.ssh/id_dsa debug1: Next authentication method: password
This seems odd to me - any ideas on how I could change that? I read something about DNS resolution being a possible culprit...