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Not sure where to look for the error with this message: This is the mail system at host mail.example.com. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do...

In my defense, I screwd up my apt cacher by removing some the crucial network packages. As I couldn't install anything with apt I tried to get network back using systemd-networkd. That didn't work. After that I gave the node a reboot. It never came up again. Sadly I that peace of hardware got...

On an LXC container I got an additional mount point (ceph RBD) for mariadb like this /var/lib/mysql I gave it the owner: chown mariadb: /var/lib/mysql but after an restart its owner is again root. Did I miss a change how Mount Points work? Can it be changed? Did a quick fix in crontab. but...

When I try to deliver SPAM E-Mails they get "queued/bounced". I remember it was once working, how to debug? This is the message I got from the tracking center after hitting delivery: 2026-02-27T22:00:57.318006+00:00 mail postfix/smtpd[19353]: connect from localhost[127.0.0.1]...

In the database it looks like that: |*@example.com|WL|*@microsoft.com|1772110006 |*@example.com|BL | |1772110006 I am asking if this is correct, because in Spam quarentine there was a Mail from @microsoft.com but it got caught by a mailing list, so far its clear...

I want my service account to be able to send me status messages from external/internet. That wasn't an problem before the Proxmox Mail Gateway but now I get those message as undeliverable. Do I have to setup that one service account on the Proxmox Mail Gateway? Something like in this guide...

I am uncertain how to use the Blocklist. I tried to block mails but I feel like I am doing it wrong: What is the pulldown menu for and whats the relation to the other position (below) where I can also put e-Mail addresses?

I am not sure where this is coming from. Is my bet correct its coming for the mail Server iRedMail and it got talked to with the wrong name?

I had a "failed" snapshot. So I migrated the LXC based LDAP server. But here my problems began Snapshot rollback didn't help. Restore from backup also didn't help. The LDAP Server kept vanishing and appearing as if there was the same IP Address assigned on two differnt Server. After my...

I tried to replicate one of my big LXC container to new Proxmox host and it refuses to do so with an error message: 2025-07-13 00:39:01 110-0: end replication job with error: command '/usr/bin/ssh -e none -o 'BatchMode=yes' -o 'HostKeyAlias=node3' -o...

Some questions about multisocket Systems: How are the CPU Cores loaded, Accross sockets? Is it the same for LXC and VMs? Is an AMD Ryzen/Epyc handeled like a multisocket System?

I am not sure how to calculate my MTU on each of the Devices. Lets assume my Network Switch I did right (I have doubts but lets look at the OVS side) What I did: Every MTU involved in the Ceph Backend MTU is set to 3000. What I want to achieve is reduce the load on the CPU even its only 2x1...

I got stuck removing "rdinit=/vtoy/vtoy" I am able to start the System by removing "rdinit=/vtoy/vtoy" from the bootmenu. I followed this post: https://forum.proxmox.com/threads/ventoy-install-of-proxmox-8-1-halts-at-loading-initial-ramdisk.143196/#post-686898 Making the settings permanent...

Once I had 4 nodes running with Ceph and one could fail. Now that one has failed and is removed. Is it possible to establish redundancy with the remaining 3 nodes? From ceph -s data: volumes: 2/2 healthy pools: 7 pools, 193 pgs objects: 139.48k objects, 538 GiB usage: 1.6...

Since new Hardware has arrived I wanted to configure a separate network for the OSDs Its 4 Hosts each has one OSD # ceph osd tree ID CLASS WEIGHT TYPE NAME STATUS REWEIGHT PRI-AFF -1 3.72595 root default -3 0.93149 host aegaeon...

The host had serveral Mount points, I added another one to copy over new data before getting my backup. Then I deleted the host: The sad thing is the disk with my new data even it was detached got deleted two, THATS a BUG! Here is how it looked before deletion: ZFS gives me the confidence...

Is it possible to artificial limit throughput for each Ceph network (public and cluster) independently? My problem is I have only one connection of 1Gb. To remove Pressure on other Networks I want to limit public and/or cluster Network from Ceph, so corosync has no problems.

On my 4-Node Cluster with Ceph I shut down one system to make some BIOS changes. The issue is the cluster came to a complete stop while doing this. What I checked beforehand on the shutdown node: No HA rules are applied to any of the VMs, LXCs All are on Ceph Storage No Backup is running on...

I want to use Jumbo Frames. From my understanding I have to set the MTU to a value supported by the hardware. But which Interface has to be changed, Bridge Interface or eth0? When changes are set how can it be tested?

wanted to mount a ceph PG for Image and ISOs. Its just to have all images and ISO the same on every node. I named the PG "proxmox" To check and put the mount somewhere I edited file: "/etc/pve/storage.cfg" cephfs: proxmox path /mnt/pve/proxmox content iso,images fs-name...