Subject: PSA-2026-00012-1: Corosync: DoS via malformed packets in unencrypted clusters
Advisory date: 2026-04-15
Packages: corosync
Details:
Two flaws were found in Corosync, the clustering stack backing Proxmox VE's clustering feature.
An...
Der Fehler tritt tatsächlich nur in Verbindung mit Application Aware auf. Laut Veeam Support wird anstelle von .\administrator oder domain\administrator user@domain.local verwendet. Uns wurde von Veeam ein Hotfix bereitgestellt. Leider nicht für...
Hello community!
First of all I have to thank fmgoodman again for writing such a detailed explanation of his error, described in his post. I come to find that I have a very, very similar problem as his cluster.
Having five hosts in a cluster...
Hello All,
I've spent far too much time getting PVE installed in our Cisco UCS blade environment. So in the hope that it helps others, I will share my installation instructions. Thanks to those who provided little nuggets of information to help...
How stable is this configuration one year later? Any challenges with Proxmox maintenance and updates?
We are running the same environment and facing the same problem with the lack of native supported iSCSI-boot.
Ich glaube, Kabel und auch die SSDs kann ich ausschließen, das habe ich alles schon in den verschiedensten Kombinationen ausprobiert. Auch die SSDs einzeln, da scheint es keine Probleme zu geben.
Bei der Firmware wüßte ich jetzt nicht - so es...
just to confirm, as I also played around with mergerFS: cache.files=off will break qmp, you need at least cache.files=partial
thanks @naffhouse for reporting back, this actually helped a lot.
for anyone wondering, under my mergerFS fount options, I had to use the option - cache.files-partial in /etc/fstab -- for the mergerFS mount.. now it works successfully
Hi, it seems it is it.
For some reason it wasn't automatically detected and I had to update the driver with the "have disk" option to let it to be installed.
I "suppose" it is it because if I try to load a different driver, the system warns me...
Background / VM history:
The affected VM has a complex migration history:
Originally a physical Windows Server 2016 server (HP ML350 Gen10, Xeon Silver) virtualized using VMware Converter onto a Dell PowerEdge with E5-2660 V4 CPUs...
With 2 cluster_network (like cluster_network = 10.10.10.0/24, 10.10.20.0/24, but ensure that the 2 networks are seperated) you are avoiding the single stream limit with LACP hashing. You should also have advantage for replication because there...
Periodic spikes are abt. 45 sec apart (~ 27 events per 10 minutes). Graphs only have a resolution of 60 sec if you zoom in.
Because of undersampling you can not find something repeating in a 45 sec period.
Of course from time to time a power...
Sorry that was a typo .... I was just giving an example and stuffed up the addressing... public network is 192.168.20.0/24
Just going through the doco again - is that best practice or is a bond a better idea?
On one of our three nodes I observe the following:
Apr 14 10:12:46 proxmox3 dbus-daemon[3026]: [system] Activating via systemd: service name='org.freedesktop.timedate1' unit='dbus-org.freedesktop.timedate1.service' requested by ':1.457' (uid=33...
Hi abamalu,
Yes, I get that you need a public network which is the front end but what I to configure two cluster networks.
My systems have four NICs.. two in a bond for Management/Front-end Traffic and two on separate networks for back-end...
Hello @anowak
To split the traffic, you have to set cluster_network and public_network:
[global]
...
cluster_network = 10.10.10.0/24
public_network = 10.10.20.0/24
...
https://pve.proxmox.com/pve-docs/pveceph.1.html#pve_ceph_install_wizard