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Old 05-10-2011, 11:50 PM   #1
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Registered: Aug 2009
Posts: 5

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port forwarding ssh erorr bind: address already in use

Hi all,
- I setup port forwarding of openssh :
connect 1: ssh -g -f -p 11111 -i /<path-to-private-key> user1@ip-server1 -L 22222:ip-server1:161
- Then I setup second connection
connect 2: ssh -g -f -p 11111 -i /<path-to-private-key> user1@ip-server1 -L 22223:ip-server1:3306
- Openssh waring to me "bind: address already in use"
- So I think port 22223 have had another program use,I use command:
ps aux | grep ssh /* find process id of second connection */
kill -9 <process-id-second-connection>
netstat -an | grep 22223 /*find which program use port 22223> */
- but I can't find anywhat
- Then I run again command :
connect 2: ssh -g -f -p 11111 -i /<path-to-private-key> user1@ip-server1 -L 22223:ip-server1:3306
- And I receive a error from OpenSSH :" bind: address already in use"
- anyone can help me
Big Thanks
Old 05-11-2011, 12:11 AM   #2
LQ Newbie
Registered: Oct 2010
Distribution: CentOS 5.5
Posts: 23

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did you try with any other port?or the error is only from that port.
Old 05-11-2011, 11:27 PM   #3
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Registered: Aug 2009
Posts: 5

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Hi coolsreejith,
- The First thanks for rely,
- I have tried to change another port or any which port but I still receive a warning from Openssh. My server run many port forwarding, besides connection 2 , I run 2 another connection,
connection 3: ssh -g -f -p 11111 -i /<path-to-private-key> user1@ip-server1 -L 22224:ip-server2:161
connection 4: ssh -g -f -p 11111 -i /<path-to-private-key> user1@ip-server1 -L 22223:ip-server2:3306
- Anywhen I kill process id in the one of the four connections and then I start again that connection , I still receive waring.
- I think, I use different ports to fowarding connections, So Openssh warning "bind: address already in use" to notify that port already to I use without any error,You have any idea?
Big Thanks!


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