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Hello If possible, a dedicated network for the IP host is preferred. You can easily achieve this with a dedicated VLAN for instance. For the VMs, the less they are exposed to Internet, the better it is. Firewall and reverse proxy are your friend. Remember that Proxmox contains a cluster firewall...

Hello A "dirty way" is to setup the firewall to block the DHCP trafic (UDP on ports 67 and 68). Regards

Hello To discover the "real" name of NIC cards in your computer, look at /sys/class/net This is useful when you upgrade from Proxmox 6 to 7 (so you change major Debian version) and some network card names changed ! You have to modify your /etc/network/interfaces file with the new network card...

Hello We've (in the past) several OVH dedicated servers. No need of /etc/netplan What is this ?

Hello CT is in privileged mode or with "nested" option activate ?

Hello You can probably reach your goal using Proxmox firewall host rules for the VM you do not want to communicate with others VMs. Create an IPSet with all you VMs except the one you talk about and create a rule on your VM to block all trafic going to that IPSet. It's a stupid answer as VLAN or...

Hello In the Proxmox GUI Select your host in the left column, then SYSTEM then DNS Make sure your DNS is ok or try to put 8.8.8.8 (Google DNS). Regards

Hello 2 ideas : - you've got 10.100.140.x and 10.100.141.x nodes, are you sure your netmask is the same on all your nodes (a 255.255.255.0 on several nodes can explain all this mess) - host firewall activated

Hello Same problem Uninstall certbot thru snap and install it directly (Debian 10 with nginx reverse proxy) snap remove certbot apt install certbot apt install python3-certbot-nginx reboot of the container certbot renew All my certificates have been renewed Hope it will work for you

That's one of the purpose of the VRack. You can add parts in it.

I found. In /etc/network/interfaces file, if your network cards are part of a bond, you did not put the "auto eth0" directive. Now all works fine (except I have to find the new names of network cards and change them in the file). Hope it will help someone.

Maybe the Support Team knowns hot how to solve this trouble. The nic name changing is indicated on the migration notes ... I can post old /etc/network/interfaces running on my Proxmox v6 hosts and the new Proxmox v7 and they can tell what to change.

In my cluster, we both have bridges, bonds, vlans, iscsi, multipaths iscsi ... This is not a good news that networking breaks upgrading 6 to 7. Moreover it seems that something tells somewhere that enp196s0f0=enp196s0f0 when networking starts (show in the status at starting) ... Maybe somewhere...

Hello I've got a 4 hosts cluster (3 with exactly the same hardware, and 1 with another). I've launched an upgrade on one of my host a few hours ago (1 of the 3 same). No problem during the upgrade. At reboot, no network. I found that my nic names have changed (for a part of them). After looking...

Done Works Thanks !

Hi Our PBS runs as a VM in a PVE Cluster (don't want to exploin our choice). Our VM use network Proxy but in the previous PBS Version, Proxy cannot be set therefore we have not been able to enroll our server with its subscription key. We update our PBS to new V2 and this new version add proxy...

Hi Can't find where the proxy parm can be define in PBS. It exists in PVE. The problem is that I can't send my subscription key to activate my licence because of this. For update, I've setup APT manually with proxy parameters. I tried the export http_proxy and https_proxy, but the subscription...

And your Windows can access Internet ?

A virtual machine under Windows ?

Usually, the SAN (Ceph in your case) operate with dedicated switchs. Your network design seems ok to me. But it does not show the switchs. Switchs are very important in cluster design as they carry all the informations between compute hosts and storage hosts (Ceph). That traffic must be quick...