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Does Verizon FIOS Block Port 22?

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Geodesic
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Contributor
Posts: 2
Registered: ‎11-30-2016

Does Verizon FIOS Block Port 22?

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I'm on FIOS with a Quantum Gateway modem, and can ssh to my Linux box with:

  • putty/ssh from other computers on my LAN
  • my phone, when connected to my wifi

I can NOT ssh into my Linux box from:

  • putty from my Windows box at work
  • my phone, when connected to the 4G network.

I redid the test changing the firewall setting from "typical security (medium)"  to "minimum security (low)",  and I still couldn't ssh to my Linux box from outside my LAN (note I didn't reboot the modem after changing the security setting, but I don't think this is necessary.)

 

So I'm thinking one of the following is true:

 

  1. Verizon blocks port 22.

  2. I need a port forwarding rule to forward port 22 to my Linux box.

 Does Verizon block the ssh port?

 

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CRobGauth
Platinum Contributor III Platinum Contributor III
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Posts: 7,961
Registered: ‎11-04-2008

Re: Does Verizon FIOS Block Port 22?

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Verizon does not block port.

As you stated, you will need to add forwarding rules as wan port of router has a public address but your box on internal LAN will have private address.


If a forum member gives an answer you like, give them the Kudos they deserve. If a member gives you the answer to your question, mark the answer as Accepted Solution so others can see the solution to the problem.

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CRobGauth
Platinum Contributor III Platinum Contributor III
Platinum Contributor III
Posts: 7,961
Registered: ‎11-04-2008

Re: Does Verizon FIOS Block Port 22?

Message 2 of 3
(3,284 Views)

Verizon does not block port.

As you stated, you will need to add forwarding rules as wan port of router has a public address but your box on internal LAN will have private address.


If a forum member gives an answer you like, give them the Kudos they deserve. If a member gives you the answer to your question, mark the answer as Accepted Solution so others can see the solution to the problem.

View solution in original post

Geodesic
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Contributor
Posts: 2
Registered: ‎11-30-2016

Re: Does Verizon FIOS Block Port 22?

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(3,279 Views)

Thank you so much!

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