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Hey everyone! I have a Proxmox 7.4 cluster with several nodes. Across them, there are two VMs, live and test, both based on Ubuntu 18.04, both with a private IP address for communication among LXCs and VMs, and with a public IP address to access the Internet. Firewall is open for specific ports...

Hey everyone! I am trying to get the current disk size of a LXC with its rootfs on the local pool, ext4-based. Nothing tricky. This is on PVE 7.4. The command I am executing, from the node where the LXC is, is as follows: # pvesh get /nodes/proxmox6/lxc/109/config --output-format=json...

Hey everyone! So I have a 7-node cluster of PVE 7.4 and I need to reinstall one of the nodes because I did not REDACTED when installing it. I would like to keep the same IP address and hostname. The node is already empty (i.e., all LXCs and VMs have already been migrated to another node) and HA...

Hey everyone! So I have a number of LXC in my Proxmox cluster, some of them Debian 11 and some others Debian 12 (templates provided by Proxmox), and I am trying to find a way to clear the local DNS cache as I need to force querying again the internal DNS server despite the TTL of the record. I...

Hey everyone! So I have a server at OVH in France and just installed a Debian 12 Bookworm using their installer. And I started the installation of Proxmox Backup Server 3.0.1, just as I did a few days ago on a Debian 12 Bookworm on a server at Hetzner in Helsinki (one will be the replica of the...

Hey everyone! Quick question: the Estimated full column for a given datastore in the Dashboard: Datastore usage takes the retention policy into consideration when calculating the expected time until the disk is full? I assume it is statistically computed given the deduplication level that has...

Hey everyone! As far as I understand, my Proxmox 7 cluster, installed on top of a Debian 11 Bullseye, uses systemd-timesyncd to keep the clock in sync via external NTP servers, configured either in /etc/systemd/timesyncd.conf or in a separate file inside /etc/systemd/timesyncd.conf.d/. All of...

Hey everyone! Quick question: Does the HTTPS macro of the PVE Firewall include UDP traffic (to port 443) or is it still just TCP? I am on PVE 7.4-17, but if it is available in PVE 8.x I would also be interested in the answer, since I plan on migrate to it soon. Thanks in advance.

Good day everyone! So I have a number of LXC on a Proxmox VE version 7.4 cluster with 5 nodes at the moment, and recently I had a file corruption problem on one of the nodes that affected the LXC in it (both SSD-ext4 pool and ZFS pool). That's in the past, but it got me thinking how am I...

Hello. As of lately (a week or two, using 7.3 and the problem persists after upgrading to 7.4), when I migrate a LXC from a node (e.g. proxmox1) to another node (e.g. proxmox4), the LXC cannot connect/ping to, or be connected/pinged from, any LXC but those in the same, new node. When I migrate...

As the title says, I can use the zfs command to get information about the subvolume of a LXC that resides in my zfspool pool, e.g. zfs get all zfspool/subvol-109-disk-0 How can I scrub that subvolume to make sure everything is fine after running into issues with the filesystem and having to...

Hey everyone! I had a problem with one of my nodes (proxmox3) on my LXC-only, 5-node, v7.4 cluster which lead to data corruption (filesystem) inside the LXC. I am still trying to figure out exactly what happened, but rebooting the machine triggered fsck on the main disks and the node was...

Hey there! I have a 5-node cluster with a lot of LXC which basically fall into these categories: Common services (e.g., internal DNS) Database servers (e.g. PostgreSQL) Application servers (e.g. Python applications running with Gunicorn) Web servers (e.g. NGINX as reverse proxy for the...

I have a 5-node cluster with LXC only. From time to time, some LXC loses connectivity. It's sporadic, sort of random even. But when it happens I am very lost at how to properly debug it to know the specific cause of it. This weekend happened again. Took the chance to upgrade the node from...

I have a 5-node cluster with LXC only and I am trying to move 3GB of storage of one of the LXC from the zfspool pool to the local pool on the same node (ext4), but I am getting this error: Formatting '/var/lib/vz/images/106/vm-106-disk-0.raw', fmt=raw size=3221225472 preallocation=off Creating...

Good day everyone! I have a 5-node cluster on PVE 7.3-6 with a couple hundred unprivileged LXC, all using the Debian 11 Bullseye template. I was looking at how Netflix can serve 800Gb/s of TLS encrypted video content from a single server, and a large part of it appears to be kTLS. I also saw...

Hey everyone! Is there a way to display the latency among nodes, meaning from the node you currently are in (either console or WebGUI) to the rest of the nodes of the cluster? Like running the ping command to each node and displaying the end result together in a quick, useful and fashionably...

Good evening everyone! I have a production cluster with 5 nodes. All of the nodes have one network card with: A dedicated public IP address on eno1. A vmbr4001 bridge for the public subnet of the guests (LXC). A vmbr4002 bridge for the private subnet of the guests (LXC). A vmbr4003 bridge for...

Hey everone! So I had 2FA enabled for my root@pam user and wanted to add a new node to an existing cluster. Last time I had to do that (a couple of minor versions ago, if I recall correctly) I had to remove 2FA, then re-create it after the node was added and set up. So I am now on Proxmox...

Hello everyone! I am using the community.general.proxmox Ansible module to provision LinuX Containers into my Proxmox 7 cluster. At the moment I am using this value for the netif option: netif: {'net0':'name={{ proxmox_net_iface }},bridge={{ proxmox_net_bridge }},firewall=1,ip={{ ansible_host...