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Thx Spirit. I finally found that the problem was not related to the Proxmox firewall but to the centos 8.1 firewalld. I just had to add the 8181 port to make it work. Thx for your help!

That's quite strange as ssh port 22 is disabled on the host (and 8181 is opened). But on VM, I can connect on ssh 22 but not on 8181.

yes for the VM NIC: and for the datacenter:

Hello! I just installed a centos 8.1 VM on a proxmox 6.1-8 (zfs). I have enabled the firewall in which I have 3 rules (2 sshs - old and new port - and one for ping). In Firewall options: but on my VM: [root@gandalf ~]# iptables -L Chain INPUT (policy ACCEPT) target prot opt source...

So simple :) Thx!

Hello! I would like to increase the number of processor for one of my guest. I went to hardware tab and edited the processor line. I can see now the old value in black and the new one in red. I believed a reboot would be enougth to apply the modification but looks like it's not the case :(...

Thx for your help!

Hi Chris, Thx for your answer. I only have one node. I used your command but the result is different. But I f I compare the content of the id_rsa.pub file and the one in the authorized_keys, they are identical. Thx!

Hello! I just installed a proxmox v6. When I wanted to add my ssh key in authorized_keys file, I see that there is already one ssh key in it. Does the installation create one by default? If yes, what is the usage of it? Thx!

Hello! I tried the following: # Mount the filesystem under rescue zpool import -R /mnt rpool mount -t proc /proc /mnt/proc mount --rbind /dev /mnt/dev mount --rbind /sys /mnt/sys # Enter chroot chroot /mnt /bin/bash source /etc/profile # Reinstall package dpkg --configure -a apt-get update...

Hello! I followed the following procedure to upgrade my proxmox v5 to v6 : https://pve.proxmox.com/wiki/Upgrade_from_5.x_to_6.0#Update_the_configured_APT_repositories Everything went well and at the end of the apt dist-upgrade command, it requests to reboot the server, what I did. But the...

Fixed! Issue was not related to the VM configuration but IPs used are OVH IP failover. When you want to add multiple IPs of the same NIC, you have to ensure to have the same MAC address assigned to all your IPS. This is done through the OVH manager (select your IP -> add virtual MAC -> select...

Hello! On one of my VMs, I would like to configure multiple public IPs. I tried to add a second one but I can't ping it. What I have done so far on the VM (centOS 7), I have created ifcfg-eth0:0 under network-scripts: DEVICE="eth0:0" BOOTPROTO=static DEFROUTE=no ONBOOT=yes...

Hello! I must forget to do something or I do it wrong but after a modification in the interfaces file on my host, I did: # ifdown vmbr1 # ifup vmbr1 After that, my VMs linked to this bridge are unreacheable (only via console). The only way to make it work again is to reboot the host :(

Thx!

Thx! After playing around, I came to the same conclusion. But a confirmation is always good :) I guess there will be no problem to have iptables / fail2ban running on a VM, right?

Thx! Another question: is the PVE firewall link to iptables running on each VM or it's completely separated?

Hello! I read several times the documentation about the proxmox firewall trying to understand how this is working. But one point remains obscure for me : does the VM firewall inherit from the top level (Node then datacenter)? Thx in advance!

Progressing .... I have noticed that on network device (net0) on my guest (menu "Hardware"), the firewall option was checked. I removed it and now with the above datacenter firewall settings, my guest can access internet. And I can connect to my guest with ssh thanks to NAT. Honestly it's quite...

When I just reactive the firewall on datacenter level, it drops connection to VM (SSH NAT through the host) and VM does not access the internet anymore. The settings for the datacenter firewall is: And: Any idea on what could be missing? Thx!