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I am able to SSH locally into MAC OS X on standard port 22. But when I try to SSH via public ip I get connection refused. I have forwarded port 22 on the router to MAC OS IP. When I run nmap local-ip port 22 says it open, but when I run nmap on public-ip port 22 says closed. So I think port 22 is closed on public IP, and I'm unsure how to open it. I'm still pretty new to ssh any help would be appreciated.

LJS
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2 Answers2

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Well the answer turned out to be rather simple for me. I live in an apartment complex, and at this time I share a public IP with all who live in the complex. I have to request my own public IP to get this working. However I hope others will benefit from the other comments and answers given!

EDIT: I suppose a solution for this is posted here

Community
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LJS
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Verify if your ISP is blocking the port 22 (it's easy to search).

Also, be sure that your port forwarding is correct:

  • IP source must be empty
  • Source port is 22
  • IP Destination must point to your computer local ip (which is given by your router and looks like 192.168.X.X [warning: 192.168.X.1 is your router])
  • Destination port is 22

If your ISP does block port 22, a little trick that could work is setting the source port to 443 (SSL) [keep the destination one to 22], which is more often open that SSH. Be sure if you try to connect to your server from outside that you specified the port 443.

max890
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