If Cloudflare can't connect to your origin and you don't see anything in the logs then it's probably

If Cloudflare can't connect to your origin and you don't see anything in the logs then it's probably a firewall in front of your server.

Isaac McFadyenOP•3/21/24, 1:01 PM

Some cloud providers have a firewall that restricts connections to your server at all, even if the firewall on the server is compltely off.

IIsaac McFadyen If Cloudflare can't connect to your origin and you don't see anything in the log...

Kasumi•3/21/24, 1:01 PM

:Facepalm:

Kasumi•3/21/24, 1:01 PM

Yes theres a firewall between but the firewall has all CLoudflare IP's whitelisted

KKasumi Yes useless af

Chaika•3/21/24, 1:01 PM

well, how would it though? It hasn't made a connection yet? Some connections are Argo Smart Routed, how would it know which IP that would come out of?
The only utility that shows Edge Server Origin IPs is HTTP Logpush iirc

Kasumi•3/21/24, 1:02 PM

But it still drops everything and I dont see any requests getting dropped by Cloudflare IP's

KKasumi Yes theres a firewall between but the firewall has all CLoudflare IP's whitelist...

Isaac McFadyenOP•3/21/24, 1:02 PM

Can you see the logs of that firewall or no?

IIsaac McFadyen Can you see the logs of that firewall or no?

Kasumi•3/21/24, 1:02 PM

Yes :shyyDead:

KKasumi Click to see attachment

Kasumi•3/21/24, 1:02 PM

KKasumi Click to see attachment

Kasumi•3/21/24, 1:02 PM

And thats the firewall config

Isaac McFadyenOP•3/21/24, 1:02 PM

That's the SSH firewall on your server. I mean that there's sometimes a firewall that's not part of your server.

Isaac McFadyenOP•3/21/24, 1:02 PM

See: AWS Security Groups, Azure Security Groups, GCP Firewall Rules, etc.

IIsaac McFadyen That's the SSH firewall on your server. I mean that there's sometimes a firewall...

Kasumi•3/21/24, 1:03 PM

Thats not just ssh firewall just because there are ssh messages

Kasumi•3/21/24, 1:03 PM

Why it should just include ssh if its a journal log

KKasumi Thats not just ssh firewall just because there are ssh messages

Isaac McFadyenOP•3/21/24, 1:03 PM

Yes, I just mean that there are no logs for the HTTP firewall in there.

Kasumi•3/21/24, 1:04 PM

IIsaac McFadyen Yes, I just mean that there are no logs for the HTTP firewall in there.

Kasumi•3/21/24, 1:04 PM

Yes why Cloudflare then cant connect to my Origin

Isaac McFadyenOP•3/21/24, 1:04 PM

Also, it looks like those are only logging denied messages.

Kasumi•3/21/24, 1:04 PM

If theres no request

IIsaac McFadyen Also, it looks like those are only logging denied messages.

Kasumi•3/21/24, 1:04 PM

It should log everything

Isaac McFadyenOP•3/21/24, 1:04 PM

Perhaps it's being allowed through the firewall but the webserver or Apache or whatever is blocking it?

IIsaac McFadyen Perhaps it's being allowed through the firewall but the webserver or Apache or w...

Kasumi•3/21/24, 1:04 PM

No why it should

Kasumi•3/21/24, 1:04 PM

https, http, 443,80 is allowed

KKasumi It should log everything

Isaac McFadyenOP•3/21/24, 1:05 PM

I don't see any logs for allowed connections.

Isaac McFadyenOP•3/21/24, 1:05 PM

Only REJECT messages

IIsaac McFadyen I don't see any logs for allowed connections.

Kasumi•3/21/24, 1:05 PM

Why it should show allowed things when Cloudflare is getting blocked

Kasumi•3/21/24, 1:05 PM

Or doesnt even send anything or so

KKasumi Or doesnt even send anything or so

Isaac McFadyenOP•3/21/24, 1:06 PM

That's what I mean. If the firewall is working fine and allowing Cloudflare through but something else is blocking it (i.e. Apache) then you wouldn't see any logs

Isaac McFadyenOP•3/21/24, 1:06 PM

Which is the case here

Kasumi•3/21/24, 1:06 PM

And tcpdump is useless af too because there are just a lot of arpa things spamming around

SZ3R0•3/21/24, 1:06 PM

Hi there. Where i can make a report about a website used for scamming and hosted on cloudfire?

SSZ3R0 Hi there. Where i can make a report about a website used for scamming and hosted...

Isaac McFadyenOP•3/21/24, 1:06 PM

?abuse

Flare•3/21/24, 1:06 PM

If you feel that a site is engaging in illegal or inappropriate activities, you can submit an abuse report at https://abuse.cloudflare.com/. The Trust and Safety team will review the details and reply if appropriate. You can also report the site to your relevant local authorities. Reports cannot be filed via Discord or with individual employees or Champs.

IIsaac McFadyen That's what I mean. If the firewall is working fine and allowing Cloudflare thro...

Kasumi•3/21/24, 1:06 PM

but if I stop the firewall then it works

Isaac McFadyenOP•3/21/24, 1:07 PM

OK, well you didn't say that. So it's definitely an issue with the firewall then...

Kasumi•3/21/24, 1:07 PM

I hate it so much to work on Firewall or network related things on linux

IIsaac McFadyen OK, well you didn't say that. So it's definitely an issue with the firewall then...

Kasumi•3/21/24, 1:07 PM

Yes but why

Kasumi•3/21/24, 1:08 PM

message.txt4.63KB

Isaac McFadyenOP•3/21/24, 1:08 PM

I'm not sure. Those are definitely the IP addresses Cloudflare is connecting from

Kasumi•3/21/24, 1:08 PM

Ik that theres one typo

SZ3R0•3/21/24, 1:08 PM

there is a problem about that link...even if i complete the forms under 1 minute when i press submit is telling me that sesion expired

KKasumi *Ik that theres one typo*

Chaika•3/21/24, 1:14 PM

which typo are you talking about? The top entry is wrong, should be 48 instead of 45

Chaika•3/21/24, 1:14 PM

sudo firewall-cmd --permanent --ipset=Cloudflarev4 --add-entry=173.245.45.0/20
vs
173.245.48.0/20

Kasumi•3/21/24, 1:16 PM

Okay

Kasumi•3/21/24, 1:17 PM

But there's one typo in one rule set somewhere. But I'll try that after the meeting I've rn

CChaika sudo firewall-cmd --permanent --ipset=Cloudflarev4 --add-entry=173.245.45.0/20 v...

Kasumi•3/21/24, 2:26 PM

Nop still not working

KKasumi Nop still not working

Chaika•3/21/24, 2:33 PM

well idk firewalld enough to help, I use ufw personally.
Could try this though: https://gist.github.com/mrgarymartin/38618aaf27096af6959b5b9c4611779d
good idea to have it auto updating anyway

Gist

Updated version to whitelist all cloudflare ips in firewalld

Updated version to whitelist all cloudflare ips in firewalld - firewall.sh