The server hosting this blog respond on all ipv4 TCP ports from 1 to 65535.
See: http://portquiz.net
The following URLs should also work if you are not filtered :
This allows you to test what TCP ports are filtered by your local network.
Command line example with netcat:
$ nc -v portquiz.net 1 Connection to portquiz.net 1 port [tcp/http-alt] succeeded! $ nc -v -w2 portquiz.net 65535 nc: connect to portquiz.net port 65535 (tcp) timed out: Operation now in progress
Now that’s exactly what I was looking for.
Thanks a bunch, mate!
Cheers from Brazil.
gr8 man,
this service is wonderful..
i was looking for this for long time
Thanks :)
Iqbal
Thanks a lot man.
This really saved me a lot of time!
Excellent. Thank you for giving us this valuable testing tool. Now i can verify they me Network Firewall guys are in deed blocking all the outgoing ports they claim they are blocking.
Ports like 53 and 22 do not do the job
Yes they are! But you have to use netcat or telnet command to test them.
See, on http://portquiz.net page :
Your browser can block network ports normally used for purposes other than Web browsing. In this case you should use the telnet or netcat commands to test the port.
Please also note that this server uses some port for real services (22, 25), so testing with your browser on those ports will not work.
Excellent service!
Thanks a lot for the site. I feel bad for checking all my ports but I really needed to know.
You should add a donate link so I can thank you for your awesome service.
Port 445 is blocked on portquiz? why? :D it was just the one i needed to test :/
tried telnet and browser.. no go
I think that the hosting company, OVH is blocking this port. I tried to ask them but got no response. Sorry about that.
Simple bash-script to test all ports:
https://gist.github.com/enginefeeder101/0805faf3862d88a97d66
Thanks a lot, I was looking everywhere and there are no outgoing testers and Telnet is hardly ever on a system anymore.
Much appreciated!!
Would it be possible for a US based company to host this function?
It would be a very useful tool for users who are trying to utilize VoIP for calling (both at home and work, where firewalls come into play)
Thanks,
Ben
Hello Ben,
Thanks for you interest.
It will certainly be possible to host the service in US, though I do not understand exactly why it will help you.
Here is how it works http://positon.org/portquiz-net-how-it-works
Marc
Is there any similar url to test the https.
not for now, unfortunately. I should take some time to install let’s encrypt.
Hi, really appreciate that service. Thanks :)
this seems to work properly
2022, and this is still relevant. i was very frustated trying to proof this to our network guys before. thank you so much for this easy way of testing this <3