firewall

  1. [SOLVED] No internet on network

    Hello. I want to give internet access to a VM. I used this technique a lot of times, why is now not working? # network interface settings; autogenerated # Please do NOT modify this file directly, unless you know what # you're doing. # # If you want to manage parts of the network configuration...
  2. persistent nf_conntrack sysctl

    Hello. I am trying to modify nf_conntrack options in /etc/sysctl.conf i have : net.netfilter.nf_conntrack_generic_timeout=60 net.netfilter.nf_conntrack_icmp_timeout=10 #net.netfilter.nf_conntrack_tcp_timeout_close=10 net.netfilter.nf_conntrack_tcp_timeout_close_wait=20...
  3. Enabling firewall breaks VPN

    Hi, We've been looking into enabling firewall on our PVE. A VM is running Windows serving Microsoft AlwaysOn IKEv2 to clients. When firewall is enabled on the cluster, the clients are no longer able to authenticate, existing connections continues to function, until they disconnect. As soon as...
  4. Network Namespace not working with PVE Firewall

    Hello! In a VM I created a network namespace "ns_twsgw" (IP a.b.c.82, main IP a.b.c.81) with a bridged macvlan (second MAC address on the virtual ETH IF). I see all the ping packets from the "ns_twsgw" network inside the VM with tcpdump, but I don't see them on the bridge IF (e.g.: fwpr106p0)...
  5. VM Ports blocked from local network but not from Proxmox host

    I've been having an issue where various VMs become spontaneously unreachable from local machines, but are still reachable from proxmox itself. I don't have any firewall turned on in proxmox or the VMs, but it's acting as if there is one. I can't make heads or tails of this -- it just starts on...
  6. Firewall Input Policy DROP do not work

    Hello, When the Firewall is set on default Input Policy DROP on Datacenter level, and the Firewall is enable, it does not work at all. The server is not filtered and is fully open, just like by ACCEPT. I can easily access it from different PC, without said PC being in rules or Security Group...
  7. Cluster Firewall

    Hi Guys, I have 4 Server cluster i am trying to apply firewall rule to block 1 IP range from another interacting or accessing but i am unable to do so, i have been scratching my head since morning if someone can enlighten me a bit it would be great. firewall is enabled on Datacanter->Node-> VM...
  8. Random unrelated addresses on pvefw logger

    Hi, a security group I set up is blocking and logging some traffic that doesn't make sense to me, I'm wondering if anyone knows why its happening. The source seems to be 1.1.1.1 and destination is my phone. My router is a separate device and DHCP is also from the router, so I don't understand...
  9. Syncing IP's from fail2ban

    I have been testing my script to copy fail2ban log files to Proxmox firewall and have managed to make it work... one time :) cat /root/bin/banned2proxmox.sh #!/bin/bash # # Sync fail2ban log files from client servers rsync -a root@vm1.ic4.eu:/var/log/fail2ban.log /root/bin/fail2ban-vm1.log...
  10. Firewall: Inside or Outside

    Good Morning, currently i'm messing around with my local networks. I decided to add a DHCP Server and an option to reverse proxy some parts of my local net (green, blue) to campus (red) access. I have followed some youtube tutorials (german). Unfortunately, i can't get access to the pfsense...
  11. Possible bug when renaming a security group

    Hello When I rename a firewall security group (on the cluster/dc level), it won't get renamed on the VM level and thus the security group no longer applies to that VM. Is that a bug or intended behaviour? Thanks.
  12. Firewall-Problem

    Hallo, Ich scheine ein Firewall-Problem zu haben. Ich habe die Anwendung Passbolt (https://www.passbolt.com/) in einer VM laufen. Diese hat zwei IPs, eine IPv4 und eine IPv6. Freigegeben habe ich die beiden Web-Ports 80 und 443 mit dem Web-Makro. Zusätzlich gibt es noch eine Security-Group mit...
  13. run mikrotik routeros on proxmoxve

    Hello ,Has anyone successfully run mikrotik routeros in Proxmox VE? I can't get mikrotik routeros vm to work in Proxmox VE host with firewall My steps are as follows: 1. disable Proxmox VE firewall 2. create mikrotik routeros vm in Proxmox VE. 3. Bind the ip address in mikrotik routeros vm...
  14. PVE V-Lan + Firewall Einstellungen

    Hallo zusammen, ich möchte gerne meine Hardware Firewall auf einer VM auslagern und bräuchte mal etwas Hilfe dabei. Nach einem Tutorial habe ich jetzt die V-Lan Einstellungen eingerichtet: eno1 läuft an einen Netgear Switch und enp5s0 würde dann an das Modem laufen. Der Port 9 am Switch...
  15. firewall on or off?

    If I look at Firewall -> Options on the Datacenter, Firewall is "No". This is consistent with the docs at https://pve.proxmox.com/pve-docs/chapter-pve-firewall.html#pve_firewall_cluster_wide_setup If I look at each node individually, Firewall is "Yes". I see no /etc/pve/firewall/cluster.fw and...
  16. How to allow broadcase VM IP in PVE Cluster Firewall

    Hi, Guys, I just enable the PVE Cluster Firewall , and found there is one default rules on Chain PVEFW-smurfs and PVEFW-smurflog blocked some of broadcast network packages, it me caused my load balancer IP setup in VM encounter issue, could any one tell how can I disable this rules or modify it...
  17. Denying the VM Access to the LAN

    What im trying to achieve is to have a VM that has no way of communicating with the rest of the devices on the LAN. The configuration below seems to work but i wanted some of your thoughts on it. My aim to have the VM accessible by another person using a remote tool (e.g., AnyDesk) but prevent...
  18. how to let network traffic mirror to guest os using linux bridge(port mirroring)?

    pve host:has network traffic. vmid=102, guest os: config bridge to vmbr4, but cant get network traffic. why?
  19. FTP Problem Firewall

    Moin, mir zerbricht ein Problem den Kopf. Ich bin zwar vom Fach (IT-Systemelektroniker) aber ich finde den Fehler nicht bei meinem Homeserver. Habe die Proxmox Firewall so konfiguriert das nur http und https erlaubt sind. Funktioniert soweit. In der Fritzbox sind auch die Weiterleitungen...
  20. windows firewall is greyed out

    Hi, I noticed my windows firewall service in the VM is not running and it is even greyed out, so I cannot start it. Is this a Proxmox thingy??

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