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Sure you can... you can do it when you set up FMS; you can even just handle it on your router through forwarding (the forwarding ports don't have to match on the receiving and forwarding end).
But what does Telus have to do with it? That part I don't get. ISPs give you a router, what ports you open for what traffic is entirely up to you. Is Telus blocking you from using ports 80/443 on your router? I'd switch ISPs in a heartbeat....
Thanks...I agree with you..I'll switch ISPs if necessary, but it's a hassle and it seems to me that this is something that can be resolved relatively easily. I don't want to move over to a new ISP and get the same story !
Not as often anymore, but ISPs try to limit traffic on consumer accounts and that often means prohibiting web servers by not allowing inbound connections upstream of the modem/router on common web ports. Usually 80 and 443, but sometimes also 8080. Maybe they charge extra for a Server account want you to buy that or they their network simply will not handle supporting a bunch of web servers.
I ran into this once when I was a student. Eventually changed ISP to a server friendly one.
As wimdecorte said you can change the ports on the install and/or use forwarding to get around this as well. My advice would be to change ISP. When fellow students and I ran into this many years ago the ISP was monitoring traffic and figured out the port forwarding trick and stopped the service. Not sure if this happens any more.
Do you get static (or at least global) IP address from ISP?
At least you can change 8080 in the Tomcat configuration file, easily to another non-blocked port.
And for the dynamic IP problem, you can use a DDNS service like NOIP.COM and (optionally) install a little helper program that monitors changes in your public IP and keeps NOIP in sync.
Port 25 being blocked (for example, by Comcast "Residential" service) is a huge problem if you want to host your own email server, for example, as that port is REQUIRED for email servers themselves to communicate (regardless of whether you use 993/587 for IMAP and SMTP). NOIP.COM has solutions for that, too, but those aren't free.
A static IP will "cost" you with Comcast (assuming you're already shelling out for Comcast "Business" service). In fact, unlike inexpensive static IPs from other hosting companies, a static IP from Comcast is $20/month. Plus with a static IP, Comcast demands you use their $15/month router. Nice, huh?
Yes, seems like they will not allow you to receive traffic on those ports.
You can change your FMS deployment to listen to different ports but that means that anyone using it will need to append the right port number to their URLs, or you'd have to use a proxy that does that for you.
But perhaps the issue is that this a consumer-grade internet subscription? Is there a business subscription that does not block these ports?
So far it appears that Telus simply does not let folks use these ports. I’m checking this out further… will let you know..
Thanks for your comments..
Who would block port 80? That doesn't sound right. How would you even use the browser? Port 443? Wow.
This doesn't block web browser use. It stops you from running we services on a consumer account.
Understandable, but time to move to an ISP that can handle the threats properly and not have to block these common ports?
Well, by magic (without my changing any settings) I was able yesterday to log in remotely to our server. Our applications worked just fine, which I expect should tell us that our routers port-forwarding setup is working properly and our Dyns fixed IP address is also OK. It should also tell us that the fact ports 80 and 443 are blocked by our ISP (Telus) do not have any bearing on this issue since port 5003 is the main port we need forwarded for this purpose.
The problem is that when logging in again after an hour or so we get an "connection fails" message...
...and then later on, after a few more attempts, we get the magic connection again...!
Beats me !
Any suggestions would be appreciated...