firewall

Hello my clients are hosting mail servers and I want to block all outgoing emails for all my VM so i made firewall settings, at datacenter level, node level and security group and enabled it for all VMs For Datacenter its as follows For Node Level it is as follows For VM Level it is as...

Hallo Zusammen, ich stehe im Moment total auf dem Schlauch. In großen Netzwerken gibt es in der Regel eine DMZ und in dieser immer eigene Hyper-Visor für spezielle VMs, welche von Extern (aus dem Internet) erreichbar sein sollen. Hier gibt es dann auch meisten größere Firewalls, welche den...

I'm following Jay's proxmox tutorial (https://www.youtube.com/watch?v=DNsLLrCgK0U&list=PLT98CRl2KxKHnlbYhtABg6cF50bYa8Ulo&index=12) and using exactly the same steps I receive different results: after turning on firewall both on datacenter and host level, I am not blocked. Both 8006 and 22 works...

I have already searched for similar questions but wasn't able to find a satisfying answer (or maybe I just overlooked it). I have a VM with OPNsense that acts as a central firewall and router, which is connected to vmbr0 (WAN) and vmbr1 (LAN). There are multiple other VMs connected to vmbr1. I...

Hello, Please help me solve this issue. I had access to my Proxmox GUI interface. I was setting up firewall to allow a particular IP to access GUI. The only chande i made was to enable firewall and change Input Policy from Accept to Drop. Now i can access the GUI once more. I've try to follow...

I've been hitting my head to the brick wall that is iptables inside a Debian 11.3 container in Proxmox. I cannot seem to get it to block anything and there seems to be some contradicting discussions about if iptables should even work inside LXC. I do use Proxmox firewall as well, and it is...

Hello This is currently my network configuration. I am using my public ip .116 for my PVE e, another public ip .118 as a NAT network for my VMs. The public ip .118 is connected to the firewall as WAN and the firewall then controls all the traffic. Now on the firewall I would like to also add...

Hello everyone I have a custom firewall rule for a few VMs that I can't enter in the GUI. The most elegant way would be to load it directly at startup by "post-up" in the /etc/network/interfaces file. The rule looks like this: ip6tables --insert tap181i0-IN -m mac ! --mac-source...

Hello everyone, I'm trying to make my own router/firewall with OPNsense as a VM in Proxmox. What's not clear to me is if I can let OPNsense connect to the internet directly, or if that put Proxmox at risk and thus I should add the Proxmox Firewall to be safe? In both cases Proxmox will be...

Hallo, ich habe es als Anfänger nach vielen Tagen endlich geschafft, auf einem Debian-11-basierten Container mit StrongSwan ein Site-to-site-VPN per IPSec zustande zu bringen. Auf Seite A habe ich routerseits (Ubiquiti DreamMachine Pro) ein Port-forward für 500 und 4500 auf die lokale IP des...

Bonsoir, je voudrais empêché mon contenaire(VM) de pouvoir avoir accès a mon réseau local. J'ai essayer de faire des règles de pare-feu mais je galéré un peut. Si une personne pourrait m'aidé. Voici la configuration principale de mon proxmox et mon réseau: Ip proxmox : 192.168.1.62/24 Ip...

Hi, Do i really need VM firewall enabled while i have CSF installed on cPanel/WHM? Or the VM firewall is more used for specific ports to be blocked and accessed only from specific devices/IP whereas CSF is more used on the cpanel/WHM level for protection? I guess my question is if i waste a...

Hi, I want to setup different firewall setting on different interface on the same VM. How do I set it in this scenario? eth1: Enable IPFilter (Do not allow IP spoofing) Enable Mac Filter (Do not allow MAC spoofing) eth2: Disable IPFilter (Allow IP spoofing) Enable Mac Filter (Do not allow...

This is 4th try after getting no responses from Stack Exchange sites [1, 2, 3] and I've been fighting with this issue for ~2 weeks. I really hope someone can help me with this issue. --- I have a setup like this (this diagram is also available here): I'm running a single PVE host in my...

This is a rough draft of an idea from this thread over in the PMG forum: https://forum.proxmox.com/threads/how-to-close-open-port-111.43310/ Two notes: it would be nice if a future version of PVE included macros for PVE web interface and PMG Submission. There is "Submission" but that's not port...

Hello, i need help for the Firewall settings for NFS Shares in VM's. My Proxmox Server has 3 different LAN Interfaces for WAN LAN and DMZ. I have different VM and container in this networks. My Problem: In the DMZ i have a Debian11 VM and try to connect an NFS Share from my NAS in the LAN...

Hi Forum. I have some questions, since I've reinstalled a Couple off times for making this setup rigth. I have 1 Dedicated Server hosted Only physical 1NIC 2Public IP's - on vmbr0 The 2. public IP on vmbr0 but bounded by MAC address, so I have a VM running PFsense for this secondary IP...

Hallo Liebe Proxmox Community, Aktuell bin ich in der Einrichtung eines Proxmox Servers, darauf laufen 2 VM´s mit Windows 10. Das Web Interface von Proxmox ist nur im internen Netzwerk erreichbar. Auch weiter noch nichts konfiguriert oder vorgesehen. Meine Frage ist nun: Muss ich noch etwas...

Hi everybody, I am struggeling with a problem where I did not figure out yet if it is a "basic" networking problem or something that has to do with my SDN configuration. The setup is the following: I have two VEs (192.168.2.10 and .11) coupled as a cluster. Within this cluster there is an...

DynFi company is a Proxmox-VE partner and also the developer of the DynFi Firewall, a new, modern Open Source Firewall. Since Proxmox-VE and DynFi Firewall are very complementary, we thought that It would be nice to provide end-users with a Screencast detailing the steps required to create a...