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thedonquixotic's profile

Tutor

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5 Messages

Wed, Oct 24, 2018 5:58 PM

Unable to access home server from external network; 443 is being blocked despite port forwarding

Hi. 

I'm helping my parents set up a home cloud server on an Ubuntu 18.04 desktop with the NextCloud cloud server. I can access the server through a browser on the desktop running the server (server is named "aslan") using the public IP ( 99.50.125.237) and I can connect using the domain I've set up at family.jackalope.tech using my hosted DNS service. I can not access the server from outside the local area network. I can only inconsistently connect to the server through phones or computers already on the LAN. Sometimes it works, sometimes it doesn't. I can never connect to the server through devices external to the server.

Using a port checker service ( https://portchecker.co/ ) I can see that port 80 is open and that port 443 is not. Port 443 is necessary in order to connect via HTTPS. I have gone through the router and set up port forwarding rules for 443. But it seems I can set up a port forwarding rule for one device per port. So that means I can open up the 443 port to a specific phone connected to the network, or a specific laptop. I can't however set up 443 to open to any device that attempts to connect though. Is this a correct understanding of the issue?

My parents have ATT Uverse with router BGW210. I have called ATT multiple times and the techs there did not seem to be able to understand what I was asking them about. I have also searched this forum and the information I have found has been sporadic and often incomplete. Can I get a clear answer on what the policy of ATT uverse is for opening port 443? I have read elsewhere that ISPs sometimes block 443 to prevent people from running home servers etc, but I am not clear on how true that is. 

Is there a way around this? Either by doing some kind of rerouting or adjustment of my server settings?

ATTHelp

Community Support

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203.5K Messages

4 years ago

Hi @thedonquixotic,

 

Learn more about port forwarding and set up for your gateway BGW210. For more advance technical support with using domains and 3rd party equipment check out connect tech.

 

Dee, AT&T Community Specialist

 

Tutor

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5 Messages

4 years ago

I already know how port forwarding works.... clearly from my message. I mean, I get it's ya'll's job to do whatever AT&T management lays down on policy, but this is just really really lazy, bad, customer service. 

Also, this isn't an advanced issue. At the very least I think AT&T tech support should be able to give me a clear answer on what their 443 port policy is. I can't find it stated anywhere. 

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