<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">The TCP connection is being built successfully. We can know this by the fact that it has progressed to sending an application-layer PDU. If it were a routing issue, it would have failed to build a TCP connection (the SYN-ACK would have failed to return).<div><br></div><div>However, it is closed very soon after, during key exchange, so I would suggest you check your /etc/hosts.allow and /etc/hosts.deny. Check the contents of /etc/ssh/, in particular, is there anything in /etc/ssh/sshd_config that could be a problem?</div><div><br></div><div>Was this a clean reinstall, or an upgrade over an existing system?<br><div><br></div><div>Most importantly, is there anything in the server logs?</div><div><br></div><div>You mentioned "idc", what is that?</div><div><br></div><div>Your issues with nginx,php,mysql etc, are probably separate.</div><div><br><div><div>On 1/02/2011, at 12:52 AM, Yang Yang wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>my server is on centos 5.5,it is just a new reinstall system<br><br>i build a php depend on server and used nginx,php,mysql<br><br>ssh is default 22 port<br><br>The system perfomance good a few time.but it is always happen a problem only need hardware reboot to solve.the server is on idc.so i can not see the local screen information.<br>
<br>the appearance is:<br><a href="http://1.it/">1.it</a> can not use ssh to connect,it show server is down or rebooting<br>2.ping is ok<br>3.http can show nginx's information(nginx/0.8.46),but can not load right page,and it show 403 forbiden page</div>
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<div>i use another server use ssh -vv xxx.xxx.xxx.xxx,and the responce is:</div>
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<div>SSH2_MSG_KEXINIT sent </div>
<div> </div>
<div>close</div>
<div> </div>
<div>sshd hangs after SSH2_MSG_KEXINIT sent <br><br><br>i do not know what happen,please give me a good answer<br><br><br>thanks erverbody</div>
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