Website "https://sedejudicial.justicia.es" access problem

D

DrugoSyn

Member
Mar 19, 2021
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I have a proxmox 8 cluster with several virtual servers in it. Every time I try to access https://sedejudicial.justicia.es from any server I get a timeout, but from the local computers I can access without any problem.
The weirdest thing is that I have another smaller cluster with Proxmox 7 and it works perfectly from any server I have in it.
I have tried to change the network model of the VM but with any of them it happens exactly the same.
I have also tried setting MTU to 9000 on the whole network but I still get the same results.
I have several WANs, I've tried each of them to avoid possible IP blocking, but it still gives timeout when accessing that web.
The Proxmox Firewalls, both at Datacenter level, as in nodes and in the VM are disabled. I manage everything from two Mikroitk firewalls.
In these firewalls I have configured filters so that they don't block anything from this web or the virtual server.

Does anyone have similar problems?

Thanks in advance!
 
I have tested on both sites and on a local pc and the result is the same on all three.

1739364881337.png

I also checked with Wireshark to see the traffic on Proxmox 8 and got this result.

1739365200120.png

The difference I see with the result of the local PC is that in Proxmox, the maximum lenght is 1820, but in the local Pc never goes over 1500.
Besides TCP Retransmission and TCP Dup ACK errors on the server inside Proxmox 8.

Could it be that Proxmox adds something?

Thanks for the help!
 
Do you have a firewall? if yes, could you please temporarily disable it? May you share with us also the output of `ip a` and the network configuration of the Proxmox VE `cat /etc/network/interfaces`.
 
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