Are my rules corrects for securing proxmox

openaspace

Active Member
Sep 16, 2019
486
10
38
Italy
Hi.
Are my rules correct?
Thank you in advance.
I have performed a full tcp and udp port scan with Zenmap and the proxmox host appear completely without open ports.
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Rules are applied on the main cluster ,not node:
  • any INPUT connection from my static ip, also dedicated rule for my static ip for proxmox port and ssh;
  • any OUTPUT connection from enp4s0 main host to my static ip;
  • Drop any icmp;
  • General IN DROP.
Firewall enabled on the node with no rules ( cascade from cluster)
Firewall not enabled on the vmbr0 where is running pfsense with it's own rules.

enp4s0 host ethernet
vmbr0 bridge to the main host -> pfsense dedicated public ip
vmbr1 pfsense private virtual network

v3 - Proxmox Virtual Environment (5).png
 
Are my rules correct?


Depends on what you want to achieve (you did not mention it). In case of high complexity the best practice is to try - AFAIU that's exactly what you were going to do already.
 

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