[ale] more fun with ssh

[Wolf Halton]

On Sun, Aug 12, 2012 at 10:19 AM, Jim Kinney <jim.kinney at gmail.com> wrote:

> It still tries to resolve the ip to a host name. If you're not using dns
> for that segment, put a name in etc/hosts.
> On Aug 12, 2012 9:52 AM, "Wolf Halton" <wolf.halton at gmail.com> wrote:
>
>> Why would one of the hosts in my network take a very long time (over 10
>> seconds) to negotiate a connection from another host on the same lan. Using
>> IP address only, no DNS resolution involved.
>>
>> This would only be an interesting  oddity if it didn't time out nagios
>> checks.
>>
>> Wolf
>>
>> http://evergreen-community-01.lyrasistechnology.org
>> http://sourcefreedom.com
>> Apache developer:
>> wolfhalton at apache.org
>>
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>>
>>
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>
debug1: Local version string SSH-2.0-OpenSSH_5.3p1 Debian-3ubuntu7
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 '192.168.10.56' is known and matches the RSA host key.
debug1: Found key in /home/nagios/.ssh/known_hosts:32
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
%% slowdown is right here %%
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Trying private key: /home/nagios/.ssh/identity
debug1: Offering public key: /home/nagios/.ssh/id_rsa
debug1: Server accepts key: pkalg ssh-rsa blen 277
debug1: read PEM private key done: type RSA
debug1: Authentication succeeded (publickey).
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions at openssh.com
debug1: Entering interactive session.
debug1: Sending environment.
debug1: Sending env LANG = en_US.UTF-8

Why would only this host have that slow-down and none of the others?
-- 
This Apt Has Super Cow Powers - http://sourcefreedom.com
Open-Source Software in Libraries - http://FOSS4Lib.org
Advancing Libraries Together - http://LYRASIS.org
Apache Open Office Developer wolfhalton at apache.org
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