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Old 08-06-2008, 12:16 PM   #1
randomman
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Registered: Nov 2007
Posts: 26

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openssh connection refused


greetings everyone

i used to be able to ssh to a server at university ... and then for some reason i started getting this message

Quote:
ssh: connect to host [server] port 22: Connection refused
i contacted the administrator and he said that he can ssh fine to the server.

it only happens with this server and other servers on same network. i still can ssh to another server on a different network with no problem.

please, some help

thanx

i am using kubuntu 8.04 on T42 thinkpad

and same happens with sftp

Last edited by randomman; 08-06-2008 at 12:24 PM.
 
Old 08-06-2008, 12:48 PM   #2
TB0ne
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Registered: Jul 2003
Location: Birmingham, Alabama
Distribution: SuSE, RedHat, Slack,CentOS
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You identified the problem yourself....

Quote:
Originally Posted by randomman View Post
it only happens with this server and other servers on same network. i still can ssh to another server on a different network with no problem.
You probably don't have a route to that network anymore...either something got hosed up with your address (don't know if you're using DCHP or not), the router/switch further upstream is having a problem, or if something got misconfigured on your system. You don't say if you made any changes, so it's hard to say.

SFTP and SSH both use port 22. Can you telnet/FTP, or use any other protocol to that server to test?
 
Old 08-06-2008, 01:10 PM   #3
randomman
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Registered: Nov 2007
Posts: 26

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Quote:
Originally Posted by TB0ne View Post
You identified the problem yourself....

You probably don't have a route to that network anymore...either something got hosed up with your address (don't know if you're using DCHP or not), the router/switch further upstream is having a problem, or if something got misconfigured on your system. You don't say if you made any changes, so it's hard to say.

SFTP and SSH both use port 22. Can you telnet/FTP, or use any other protocol to that server to test?
thanx for replying

i am using dhcp on wireless

ftp command
ftp: connect: Connection refused

telnet
telnet: Unable to connect to remote host: Connection refused

i am using guarddog for fireall

i dont remember exactly how i caused this problem. it was too late last night and i think i was trying to sftp my folders using dolphin file browser (comes with kde on kubuntu) and then i started getting this problem (i think when i typed the wrong login or server information by mistake)


anyways .... just reset the modem/router and it works fine now. probably was the modem firewall. thanx for the tip. i had a hunch i needed to reset the modem but was too lazy to get off my butt and walk to the modem and do it ... so i chose to waste 10 hours trying resolve the problem ... not the first time i make bad choices

Last edited by randomman; 08-06-2008 at 04:27 PM.
 
  


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