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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">If adding it to /etc/hosts resolved the issue it makes it sound as if your issue is name resolution.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Is the slowpoke Linux?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">What is in /etc/nsswitch.conf on the slowpoke for the “hosts” line? (You may need to look at other lines for IPv6 if not Linux.)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">If hosts line has “files” before “dns” what is in /etc/resolv.conf? Does it try nis?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">What happens if you try “host <nagios master>” from the slowpoke? What if you try “dig <nagios master>”.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> ale-bounces@ale.org [mailto:ale-bounces@ale.org]
<b>On Behalf Of </b>Wolf Halton<br>
<b>Sent:</b> Sunday, August 12, 2012 7:15 PM<br>
<b>To:</b> Atlanta Linux Enthusiasts<br>
<b>Subject:</b> Re: [ale] more fun with ssh<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p>thanks.<o:p></o:p></p>
<p><a href="http://evergreen-community-01.lyrasistechnology.org">http://evergreen-community-01.lyrasistechnology.org</a><br>
<a href="http://sourcefreedom.com">http://sourcefreedom.com</a><br>
Apache developer:<br>
<a href="mailto:wolfhalton@apache.org">wolfhalton@apache.org</a><o:p></o:p></p>
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<p class="MsoNormal">On Aug 12, 2012 5:49 PM, "Jim Kinney" <<a href="mailto:jim.kinney@gmail.com">jim.kinney@gmail.com</a>> wrote:<o:p></o:p></p>
<p>You can force version 2 only in confug. Ssh_version 2 is setting I think.<o:p></o:p></p>
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<p class="MsoNormal">On Aug 12, 2012 11:01 AM, "Wolf Halton" <<a href="mailto:wolf.halton@gmail.com" target="_blank">wolf.halton@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">On Sun, Aug 12, 2012 at 10:37 AM, Wolf Halton <<a href="mailto:wolf.halton@gmail.com" target="_blank">wolf.halton@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">On Sun, Aug 12, 2012 at 10:32 AM, Wolf Halton <<a href="mailto:wolf.halton@gmail.com" target="_blank">wolf.halton@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">On Sun, Aug 12, 2012 at 10:19 AM, Jim Kinney <<a href="mailto:jim.kinney@gmail.com" target="_blank">jim.kinney@gmail.com</a>> wrote:<o:p></o:p></p>
<p>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.<o:p></o:p></p>
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<p class="MsoNormal">On Aug 12, 2012 9:52 AM, "Wolf Halton" <<a href="mailto:wolf.halton@gmail.com" target="_blank">wolf.halton@gmail.com</a>> wrote:<o:p></o:p></p>
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<p>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.<o:p></o:p></p>
<p>This would only be an interesting oddity if it didn't time out nagios checks.<o:p></o:p></p>
<p>Wolf<o:p></o:p></p>
<p><a href="http://evergreen-community-01.lyrasistechnology.org" target="_blank">http://evergreen-community-01.lyrasistechnology.org</a><br>
<a href="http://sourcefreedom.com" target="_blank">http://sourcefreedom.com</a><br>
Apache developer:<br>
<a href="mailto:wolfhalton@apache.org" target="_blank">wolfhalton@apache.org</a><o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">_______________________________________________<br>
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_______________________________________________<br>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">debug1: Local version string SSH-2.0-OpenSSH_5.3p1 Debian-3ubuntu7<br>
debug1: SSH2_MSG_KEXINIT sent<br>
debug1: SSH2_MSG_KEXINIT received<br>
debug1: kex: server->client aes128-ctr hmac-md5 none<br>
debug1: kex: client->server aes128-ctr hmac-md5 none<br>
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent<br>
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP<br>
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent<br>
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY<br>
debug1: Host '192.168.10.56' is known and matches the RSA host key.<br>
debug1: Found key in /home/nagios/.ssh/known_hosts:32<br>
debug1: ssh_rsa_verify: signature correct<br>
debug1: SSH2_MSG_NEWKEYS sent<br>
debug1: expecting SSH2_MSG_NEWKEYS<br>
debug1: SSH2_MSG_NEWKEYS received<br>
debug1: SSH2_MSG_SERVICE_REQUEST sent<br>
debug1: SSH2_MSG_SERVICE_ACCEPT received<br>
%% slowdown is right here %%<br>
debug1: Authentications that can continue: publickey,password<br>
debug1: Next authentication method: publickey<br>
debug1: Trying private key: /home/nagios/.ssh/identity<br>
debug1: Offering public key: /home/nagios/.ssh/id_rsa<br>
debug1: Server accepts key: pkalg ssh-rsa blen 277<br>
debug1: read PEM private key done: type RSA<br>
debug1: Authentication succeeded (publickey).<br>
debug1: channel 0: new [client-session]<br>
debug1: Requesting <a href="mailto:no-more-sessions@openssh.com" target="_blank">
no-more-sessions@openssh.com</a><br>
debug1: Entering interactive session.<br>
debug1: Sending environment.<br>
debug1: Sending env LANG = en_US.UTF-8<br>
<br clear="all">
Why would only this host have that slow-down and none of the others? <br>
<span style="color:#888888">-- <br>
This Apt Has Super Cow Powers - <a href="http://sourcefreedom.com" target="_blank">
http://sourcefreedom.com</a><br>
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http://FOSS4Lib.org</a><br>
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wolfhalton@apache.org</a></span><o:p></o:p></p>
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<p class="MsoNormal">How would I get it to NOT check reverse DNS?<br>
<a href="http://ubuntuforums.org/showthread.php?t=1699197" target="_blank">http://ubuntuforums.org/showthread.php?t=1699197</a><br>
<br>
"Just add the parameter "UseDNS no" on /etc/ssh/sshd_config" to the remote host I am shelling into?
<br clear="all">
<o:p></o:p></p>
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-- <br>
This Apt Has Super Cow Powers - <a href="http://sourcefreedom.com" target="_blank">
http://sourcefreedom.com</a><br>
Open-Source Software in Libraries - <a href="http://FOSS4Lib.org" target="_blank">
http://FOSS4Lib.org</a><br>
Advancing Libraries Together - <a href="http://LYRASIS.org" target="_blank">http://LYRASIS.org</a><br>
Apache Open Office Developer <a href="mailto:wolfhalton@apache.org" target="_blank">
wolfhalton@apache.org</a><o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
Well adding the nagios server to the /etc/hosts file of the slowpoke, worked for that server, and adding the "UseDNS no" parameter to the /etc/sshd_config file on the slowpoke made other local servers access it properly.<br>
Now my question is, "Why does the system have to convert to SSH type I and how do I get it to use type II?<br clear="all">
<br>
-- <br>
This Apt Has Super Cow Powers - <a href="http://sourcefreedom.com" target="_blank">
http://sourcefreedom.com</a><br>
Open-Source Software in Libraries - <a href="http://FOSS4Lib.org" target="_blank">
http://FOSS4Lib.org</a><br>
Advancing Libraries Together - <a href="http://LYRASIS.org" target="_blank">http://LYRASIS.org</a><br>
Apache Open Office Developer <a href="mailto:wolfhalton@apache.org" target="_blank">
wolfhalton@apache.org</a><br>
<br>
<br>
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_______________________________________________<br>
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