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Depending on the host some have there own firewall settings. (Proxmox has its own built in firewall for VMs)

That is the main issue becouse SSH server is open to anyone and is protected with only username and password. That means that if the password was not rotated yearly or every 6 months and it was not a secure password. My guess is that the guest SSH credentials was hacked. this needs to be...

Hello now we are getting some more information. and this SSH access is it locked down with only SSH keys or do the SSH server also accepts username and password? is the SSH locked down to only allow the customers IPs? and is SSH to the proxmox server locked down and do it allow only SSH Keys...

we use tags ie if its a clients vm or our own what OS it is, etc.

Hello Depening on the hardware you can force the hardware to use the integrated gpu but most of the hardware are like this: See GPU use GPU, with no option to turn it off. that is becouse most Hardware will think oh i will use it for myself as VMs etc are software.

it might be that its overhead issues.. i would try a ZFS and put the disks in as RAW format. it has better preformance. and remember backup backup and backup ;)

i would keep it no harm :)

Hello you dont want to uninstall proxmox stuff.. i feel like the Xorg stuff is not standard install have you added it your self? Better to wait for a proxmox staff to help

Hello The Radeon 890M GPU should support 2560×1440, but since only simple-framebuffer is active, the kernel is not yet loading a proper AMD GPU driver for the console. check if the AMD Gpu is loaded in proxmox lsmod | grep amdgpu dmesg | grep amdgpu if it is then it should support higher...

Great happy it helped :D and dont forget Backup, Backup and Backup :D

Hello First we need to get to "know" your system better. Here are some questions: Are you booting your Proxmox host in Legacy BIOS/GRUB mode or UEFI mode? (Tip: You can check with ls /sys/firmware/efi — if the folder exists, you’re on UEFI.) What is the output of: grep -E "GRUB_GFX|CMDLINE"...

Hello You’re getting non-existent or non-regular file because qm importdisk only works with regular files (raw/qcow2). If your vm-107-disk-1 is an LVM volume, you need to re-add it as storage instead. Quick steps: Check if it’s a file or LV: ls -l vm-107-disk-1 || true file vm-107-disk-1...

for me who have moved to the modern sources mode i had to do sed -i 's/main contrib$/main contrib non-free-firmware/' /etc/apt/sources.list.d/debian.sources apt update apt install intel-microcode -y in order to install intel-microcode and get rid of the error WARN: The matching CPU microcode...

if someone gained unauth access to your proxmox host then you need to secure it. Like only allow access from trusted IPs or locked down with MFA etc. i dont have proxmox on the public internet. i have it behind a firewall locked down tight. we use WHMCS but its just a management interface for...

We selfhost our Proxmox Cluster. but i would go with Hetzner if you can create a account we use it for some of our clients and it works great. dont know what you needs are but Hetzner is just a VPS hosting provider and it lets you adda virtual firewall to lock down ports etc. what was hosted...

My guess is that someone gained access via SSH if it was exposed to the internet and not locked down. do you have access to a virtual firewall that the host has? i know Proxmox has a virtual firewall we use it to lock down ssh etc.

Hello you can try and set the public ip so that PMG uses it. Use smtp_bind_address if you want to show external IP If your PMG has an internally routed public IP, you can force outgoing traffic to bind to this IP: smtp_bind_address = <your public IP> in the main.cf file.

so one of your customers VMs is attacking other servers is that correct?

try and update to the latest version. and you should have a public ip PMG should use that but first we need to know abit about the setup you have is the server on a public dedicated ip or is it behind a firewall or someting else?

why not use tags?