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Blocked ports

Anyone with a list of blocked incoming and outgoing ports for the Fios Residential Service (I know the Business Service has everything open)?

Thank you.

Comments

prisaz

Port 80

TimSykes

Its 80 and 8080 . both ports used for webpages, everything else is open to use.

XSi

So... does this means that 25 (smtp) is open both incoming and outgoing?

TimSykes

I never tried it out. But the verizon support ha told me only 80 and 8080 is blocked. But now that you ask that, I am sure 25 is blocked, every ISP blocks that port to provent spam servers. But I cant tell you 100% without testing it.

prisaz

Last time I tried port 25 was blocked inbound. Outbound it would need to work for sending any Email. I had a service though No-ip.com that was called alternate port SMTP that would forward port 25 traffic to another port. I am not sure is dyndns.org has the same service. But like was said before, most mail to inbound SMTP servers block this type of mail. Unless you set up your server as a mail forwarder, and use another persons SMTP server to send your mail. This would require authentication for outbound mail. When you use Verizons IP, the reverse lookup at the remote SMTP server would likely reject your mail as spam. No matter what pointer was in your MX record in the DNS. This is because the ip address will come back as something like pool-71-191-71-248.washdc.fios.verizon.net and not your domain name. Also running this type of server and attempting to change the reverse look up address would violate your terms of service and likely get you into trouble. I opted for a service that would let me run my domain name mail through their SMTP server, so the reverse look up would come back to the correct ip/name. Running a web server was fine if your DNS service can point to an alternate port. I have run port 3389 remote desktop with no issues. I know at one time Verizon stricly prohibited running any type of server on a residential service.

Message Edited by prisaz on 11-24-2008 04:10 PM

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