security

This may end up being quite a loaded question but… What would be the best/easiest way to setup SSL/secure communication for the WHOLE server including all VMs and Containers? Is it possible to have local/LAN access ONLY, with remote access only available via a VPN/tunnel? Would it be possible...

Hi, I have a question regarding required mitigation measures against spectre / meltdown / ... on different levels, i.e. what is needed where. As I understand it, already the host OS - Debian contains mitigations according to lscpu output: Vulnerability Itlb multihit: Not affected...

Hallo zusammen, nach der Meldung einer Sicherheitslücke im Linux-Kernel haben wir bei uns alle Server gepatcht, jetzt ist allerdings unklar ab welcher Version der PVE Kernel nicht mehr verwundbar ist. Habt ihr dazu die Infos? Über Google konnte ich leider nichts finden... Unsere PMGs stehen...

Hallo zusammen, ich bin neu in der Welt Proxmox und somit auch neu hier im Forum. Ich bin zurzeit im 3 Lehrjahr in meiner Ausbildung zum Systemintegrator, und habe mir seit gut einem halben Jahr ein Server bei einem Hoster gemietet. Auf dem Server experimentiere ich einfach ein wenig rum...

Hi everyone. Can someone point me in the direction of a log that records logins to the PMG interface (Failed and successful). Hoping it also records the IP address of the login attempts. Thanks!!

Hello, is it possible to mirror the network traffic of 1 virtual port in proxmox without tc? vmbr0 --> 6 virtual ports (important ens33, ens18) i want to mirror ens33 to ens18 that the Security Onion can only see her traffic is that possible without tc because tc not working for me Greets

Hi, I just checked an external backup and found these weird file names on it. Some 'Chinese' relation? I'm not able to change them. I'm backing up the same files on two other different devices. They don't have the same issues. So is it a security issue or is it a device issue?

Hello all, I want deploy snort in my VE, but i wounder what is the beast approach to do that. First idea is deploy vm with snort or something similar like suricata, but the real problem is ... how to redirect all traffic from NIC, VE from/to snort. I imagine it like this: vmbrX <-->...

I am looking for somt guidance to make my installation of proxmox more "secure" and resilient . I have a cluster of 3 machines with each 2 10G ports. Storage is managed via a NAS connected through a 10 GB port (it also has 2 1GB port) All the machines are connected to a 10G switch I have...

Hi all, So I have a proxmox cluster at home and I would like to make its installation more secure. I put the proxmox cluster in a DMZ, and have the Office network behind another firewall using NAT. What would be the best way to allow the access to the proxmox cluster resources securely and only...

Hey guys, I am building my first production Proxmox - not my first virt mind you, but costs are astronomical with 'other' virtualization options. Anyway. I have specific needs and specific setup - regarding the setup, lets leave that. My question is this - from your experience - is this...

We are currently setting up our servers. I recently checked the Syslog and see several hundred usernames, IP addresses and ports. Is this normal?

Hi all, As of today I'm running some Raspberry Pi's at home providing some services (nextcloud, mailserver etc.) for me and a few friends(we're running a "art/draw club"). Since I was able to get an old workstation from work and I didn't really cared about security back when I was setting the...

On PVE 6, I've installed rkhunter and ran --propudp, but it sends me every day: Warning: Suspicious file types found in /dev: /dev/shm/qb-1800-10101-29-di6DkD/qb-event-pve2-data: Hitachi SH big-endian COFF object file, not stripped, 0 section...

I understand the problem is deeper down the stack, but is there anything we can do mitigate this vuln? https://blog.bi0s.in/2019/08/24/Pwn/VM-Escape/2019-07-29-qemu-vm-escape-cve-2019-14378/

Hi, I'm considering switching my current 'cloud' VPS setup to a dedicated server (e.g. Hetzner) with Proxmox running 2-3 VMs. Currently I'm only running Proxmox in my homelab, which works great but obviously has other security requirements than a remote setup. Are there any pointers to best...

Hi, For some reasons irrelevant to explain, I used to connect to VMs with an external VNC Viewer (TigerVNC), by setting up inetd.conf on the server. Until PVE 5.1 everything worked fine. I just set up a 5.4 server, and now vncviewer only prompts for password, not for username. It seems PVE...

Hi, For traceability reasons, I would like to retrieve the security events of the the creation, modification and deletion of users. The same goes for firewall rules. Do you know if it is possible to make the logs more verbose on these two points? Thanks,

Hello everyone, I have used the Microsoft Authenticator for quiet a long time. Now I've purchased a U2F-Key, because I don't want to have to go to the other side of the room to grab my phone, unlock it, open Authenticator, log in again, read the code and type it in. Also I want to be able to...

Hi, I've written a detailed How To for setting up OATH (TOTP) 2FA in Proxmox VE: https://pve.proxmox.com/wiki/OATH(TOTP)_Authentication Any feedback is welcome.