How to do ssh tunnelling into a private network?

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My local machine (A) can access a login server (B) via SSH.
The login server (B) can access a computing server (C) via SSH.



That is, (B) has a public IP. (C) has only a private IP within the private network to which (B) also belongs.



In order to do ssh directly from my local machine (A) to server (C), I followed the method in the below link:
https://stackoverflow.com/questions/37827685/pycharm-configuring-multi-hop-remote-interpreters-via-ssh



I got the below error message:
channel 2: open failed: connect failed: No route to host



It seems my local machine does not know how to route the packets to the server (C).
I think the routing should be done by the server (A).



I spent dozens of hours, but couldn't figure out how.
Any comment is appreciated



thanks!










share|improve this question
























  • Could you give us more details please? To which service you want to connect by the tunnel? Could you share us any command "example"?

    – Dasel
    Jan 10 at 11:35















0















My local machine (A) can access a login server (B) via SSH.
The login server (B) can access a computing server (C) via SSH.



That is, (B) has a public IP. (C) has only a private IP within the private network to which (B) also belongs.



In order to do ssh directly from my local machine (A) to server (C), I followed the method in the below link:
https://stackoverflow.com/questions/37827685/pycharm-configuring-multi-hop-remote-interpreters-via-ssh



I got the below error message:
channel 2: open failed: connect failed: No route to host



It seems my local machine does not know how to route the packets to the server (C).
I think the routing should be done by the server (A).



I spent dozens of hours, but couldn't figure out how.
Any comment is appreciated



thanks!










share|improve this question
























  • Could you give us more details please? To which service you want to connect by the tunnel? Could you share us any command "example"?

    – Dasel
    Jan 10 at 11:35













0












0








0








My local machine (A) can access a login server (B) via SSH.
The login server (B) can access a computing server (C) via SSH.



That is, (B) has a public IP. (C) has only a private IP within the private network to which (B) also belongs.



In order to do ssh directly from my local machine (A) to server (C), I followed the method in the below link:
https://stackoverflow.com/questions/37827685/pycharm-configuring-multi-hop-remote-interpreters-via-ssh



I got the below error message:
channel 2: open failed: connect failed: No route to host



It seems my local machine does not know how to route the packets to the server (C).
I think the routing should be done by the server (A).



I spent dozens of hours, but couldn't figure out how.
Any comment is appreciated



thanks!










share|improve this question
















My local machine (A) can access a login server (B) via SSH.
The login server (B) can access a computing server (C) via SSH.



That is, (B) has a public IP. (C) has only a private IP within the private network to which (B) also belongs.



In order to do ssh directly from my local machine (A) to server (C), I followed the method in the below link:
https://stackoverflow.com/questions/37827685/pycharm-configuring-multi-hop-remote-interpreters-via-ssh



I got the below error message:
channel 2: open failed: connect failed: No route to host



It seems my local machine does not know how to route the packets to the server (C).
I think the routing should be done by the server (A).



I spent dozens of hours, but couldn't figure out how.
Any comment is appreciated



thanks!







ssh ssh-tunneling route






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edited Jan 10 at 13:36







syko

















asked Jan 10 at 11:26









sykosyko

291411




291411












  • Could you give us more details please? To which service you want to connect by the tunnel? Could you share us any command "example"?

    – Dasel
    Jan 10 at 11:35

















  • Could you give us more details please? To which service you want to connect by the tunnel? Could you share us any command "example"?

    – Dasel
    Jan 10 at 11:35
















Could you give us more details please? To which service you want to connect by the tunnel? Could you share us any command "example"?

– Dasel
Jan 10 at 11:35





Could you give us more details please? To which service you want to connect by the tunnel? Could you share us any command "example"?

– Dasel
Jan 10 at 11:35










1 Answer
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I use the ProxyJump feature in openssh for this purpose, maybe is this suitable for you: see https://www.exoscale.com/syslog/advanced-ssh-6-things/






share|improve this answer























  • Yes, this is exactly what I wanted! but it outputs the same error message: "channel 0: open failed: connect failed: No route to host"

    – syko
    Jan 10 at 14:06










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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














I use the ProxyJump feature in openssh for this purpose, maybe is this suitable for you: see https://www.exoscale.com/syslog/advanced-ssh-6-things/






share|improve this answer























  • Yes, this is exactly what I wanted! but it outputs the same error message: "channel 0: open failed: connect failed: No route to host"

    – syko
    Jan 10 at 14:06















0














I use the ProxyJump feature in openssh for this purpose, maybe is this suitable for you: see https://www.exoscale.com/syslog/advanced-ssh-6-things/






share|improve this answer























  • Yes, this is exactly what I wanted! but it outputs the same error message: "channel 0: open failed: connect failed: No route to host"

    – syko
    Jan 10 at 14:06













0












0








0







I use the ProxyJump feature in openssh for this purpose, maybe is this suitable for you: see https://www.exoscale.com/syslog/advanced-ssh-6-things/






share|improve this answer













I use the ProxyJump feature in openssh for this purpose, maybe is this suitable for you: see https://www.exoscale.com/syslog/advanced-ssh-6-things/







share|improve this answer












share|improve this answer



share|improve this answer










answered Jan 10 at 12:08









tonioctonioc

1,20968




1,20968












  • Yes, this is exactly what I wanted! but it outputs the same error message: "channel 0: open failed: connect failed: No route to host"

    – syko
    Jan 10 at 14:06

















  • Yes, this is exactly what I wanted! but it outputs the same error message: "channel 0: open failed: connect failed: No route to host"

    – syko
    Jan 10 at 14:06
















Yes, this is exactly what I wanted! but it outputs the same error message: "channel 0: open failed: connect failed: No route to host"

– syko
Jan 10 at 14:06





Yes, this is exactly what I wanted! but it outputs the same error message: "channel 0: open failed: connect failed: No route to host"

– syko
Jan 10 at 14:06

















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