Disable Non Standard Port (not 80 or 443)

Security Gateway
#1

Hello,

I’ve enabled WAF Cloudflare Specials Group and Set Anomaly:Port - Non Standard Port (not 80 or 443) action to “Block”. Ports like 8880, 8080, … are still open and redirecting.

What I have to do to get it working?

Thank you in advance.

#2

I tried this from my side and I don’t have issues to block incoming requests hitting other ports.

image
image971×585 28.5 KB

#3

Can you try accessing it again using incognito mode or InPrivate window?

Also, is the website you are trying to access already proxied by Cloudflare?

#4

I was using telnet, but these ports probably stay open only WAF blocks…

I see its working correctly now, thank you for advice it kicked me forward. :wink:

1 Like
#5

The documentation is clear about what rule 100015 does:

Once enabled, the additional Cloudflare ports are still open, but no data is sent to those ports as the WAF blocks the request with an HTTP 403 response.

1 Like