Articles about proxmox | UserComp.com

No Internet in Proxmox VirtualBox VM

This article provides solutions to the issue of no internet connection in a Proxmox VirtualBox VM. The VM can also ping Proxmox, and vice versa. This issue is common when the VM is created inside Proxmox.

Troubleshooting Virtual Bridge Interface Unable to Access Internet on Proxmox Server

Having trouble with your Proxmox server's internal bridge (vmbr1) not reaching the Internet? Learn about a solution for this NAT issue, using curlvmbr1 and improving your server's connectivity.

Booting Linux VM (RedHat CoreOS/Fedora CoreOS) using PXE Proxmox (FAQ)

This article provides a guide on booting RedHat CoreOS and Fedora CoreOS virtual machines using PXE on Proxmox. Since CoreOS doesn't support cloud-init, we'll use ignition instead. Learn how to create Terraform, Ansible, or Cloud-init hybrid OpenShift/OKD clusters on Proxmox.

Booting Linux VM (RedHat CoreOS or Fedora CoreOS) using PXE on Proxmox: A Guide

Learn how to boot a Linux virtual machine (RedHat CoreOS or Fedora CoreOS) using PXE on Proxmox. This guide provides a step-by-step process for setting up a hybrid environment using Terraform, Ansible, and Cloud-init for creating OpenShift OKD clusters on Proxmox, even though CoreOS doesn't support cloud-init. Instead, CoreOS uses Ignition for configuration.

How to Reset Root Password for a VM Running on Proxmox

Learn how to reset the root password for a virtual machine (VM) running on Proxmox. This article provides step-by-step instructions for accessing the VM's console and resetting the password, making it easier to manage your Proxmox VMs. Follow our guide to regain access to your VM's root account.

Reset Root Password in Proxmox VE

Learn how to reset the root password in a Proxmox virtual machine. This guide covers the process for Linux systems.

Troubleshooting Proxmox: Couldn't Resolve SRV Record forcloudflared Tunnel Agent

Having trouble installing the Cloudflare Tunnel Agent on Proxmox? This guide will walk you through troubleshooting the 'Couldn't resolve SRV record' error. Learn how to diagnose and fix the issue quickly. Read more for a comprehensive solution on the tech support site.

PXE Boot MacBook Pro via Proxmox on ATT Router

This article provides instructions on how to PXE boot a 2012 MacBook Pro running Big Sur and attempting to install Ubuntu, with a busted screen, while using an external screen that works with the laptop's video signal.

Dev/nvidia0 Missing on 23 Mostly Identical Computers: Intermittent Appearance Explained

Explore the mysterious disappearance of /dev/nvidia0 on 23 identical computers running Proxmox 8.1.4 x86_64 (based on Debian 12) and kernel 6.5.13-1-pve, with occasional reappearance after hours. Learn how to handle this issue in a Slurm cluster setup with 3 nodes.

Fixing "Can't overlap overlapping partitions" Errors while Resizing Disk in Proxmox Ubuntu Client

Learn how to fix the 'Can't overlap overlapping partitions' error when increasing disk size in Proxmox Ubuntu client. Follow our step-by-step guide to resolve the issue and successfully resize your disk.

RDP Periodically Stops Working on Ubuntu 24.04

Users running Ubuntu 24.04 with GNOME and using Proxmox to access a Windows PC via RDP have reported periodic disconnections. This article discusses possible solutions, including checking network settings and updating RDP packages.

Ghost MDADM RAID Array Appearing at Boot: A Tech Support Mystery

A Proxmox user recently reported an unusual issue where an MDADM RAID array (md127) appears on the Webmin console during boot-up, even though it is not present in the system. This article explores this tech support mystery and provides possible solutions for users facing similar issues.

Making Proxmox on House #1 Act Like Another Network (Site-to-Site VPN)

Learn how to configure Proxmox server on House #1 to act like another network using a site-to-site VPN.

HP ProDesk 600G1SFF with USB Keyboard Non-Responsive during Linux Mint Installation on Proxmox

This article discusses a common issue encountered during the installation of Linux Mint on an HP ProDesk 600G1SFF using Proxmox, where the USB keyboard becomes non-responsive.

NFSv4.2 Slow Local RAM Disk Export on Dell R720 with Xeon E5-2680v2 and Proxmox

In this tech support article, we tackle the issue of slow NFSv4.2 local RAM disk export on a Dell R720 server running Proxmox and Arch Linux. We analyze the cause and provide a solution to optimize the performance.

Secure Your Network with Proxmox Firewall: How to Block Traffic and Allow Specific IP Ranges

Learn how to set up and configure the Proxmox firewall to secure your network using Netbird (a Wireguard-based VPN) on a Proxmox PVE 8/Debian 12 server with various containers. This tutorial covers Proxmox firewall basics, such as blocking traffic and allowing specific IP ranges through SSH.

Fixing Proxmox 8.2.4: Ping Failure to LXC/MQTT Broker on VLAN 30

In this tech support article, we will tackle a common issue where a ping request from a Proxmox 8.2.4 host fails to reach an LXC or MQTT broker on VLAN 30, while other devices on VLAN 10 and VLAN 30 are reachable. Let's dive into the possible causes and solutions.

Automatically Importing ZFS Root Pool in Proxmox

Learn how to automatically import the default created ZFS root pool in Proxmox and make it available as /rpool.work. This article covers the systemd service used for importing.

Proxmox Doesn't Boot After CPU Change: Ryzen 5 1600X to Ryzen 5 4600G

This article discusses a problem where Proxmox fails to boot after upgrading the CPU from Ryzen 5 1600X to Ryzen 5 4600G. The server turns on correctly and gets past the BIOS splash screen, but the GRUB bootloader doesn't appear. Potential solutions include updating the Proxmox ISO, checking the GRUB configuration, and ensuring compatibility with the new CPU.

VM on Proxmox Single Host with 4-Port Broadcom Network Card: VMs Lose Internet After Service Reload

This article discusses an issue where a VM on a Proxmox single host with a 4-port Broadcom network card loses its internet connection after the network service is reloaded.

Optimizing Proxmox VM Allocation on HP ProLiant DL380 G10 for Small Business (CentOS ERP and Windows Server)

Learn how to optimally allocate resources for two VMs (CentOS ERP and Windows Server) on an HP ProLiant DL380 G10 with Proxmox, ensuring efficient performance for your small business.

Server Requirements for ERP and Domain Controller on HP ProLiant DL380G10

Learn the server requirements for running an ERP system and a Domain Controller on an HP ProLiant DL380G10 with Proxmox, supporting 15 users and two VMs.

Setting up a Two-Node Proxmox Cluster: One Node with OPNsense VM for Virtual Server

This article explains how to set up a two-node Proxmox cluster with one node running an OPNsense VM for virtual server purposes. Let's call the nodes NodeDXL and NodeHLK.

Configuring Proxmox and OpenVPN with /dev/net/tun devices

This article explains how to pass a /dev/net/tun device to a Proxmox LXC container to run OpenVPN. It covers adding the necessary tun device to the container's configuration file.

Migrating Proxmox XCP-NG Cluster: Disabling Networking on Ubuntu Server 22.04 VM

Learn how to disable networking on Ubuntu Server 22.04 VMs during a Proxmox XCP-NG cluster migration.

Using Proxmox Services Without Logging: Is It Possible?

Learn about the possibility of using Proxmox services without logging, focusing on non-keyboard display and reboot-free environments.

Unable to Mount 3rd NFS Share in LXC Container on Proxmox Server

A Proxmox server with multiple VMs and LXC containers is unable to mount the 3rd NFS share from a TrueNAS Scaler using an LXC container. This article provides a solution to the mounting issue.

Proxmox: Root Password Changed Randomly in a Four-Node Tree with One qDevice

A user reports experiencing an unexplained root password change in a Proxmox four-node cluster with one qDevice. This article provides suggestions and steps to troubleshoot and secure the system.

Unable to Access Internet after Changing Router: Troubleshooting SSH Connection in Proxmox

This article explains the steps to troubleshoot SSH connection issues in Proxmox when the router is changed.

Installing NVIDIA RTX A5000 GPU in Proxmox using GPU pass-through on Windows 10

Learn how to install an NVIDIA RTX A5000 GPU in a Proxmox virtual environment using GPU pass-through on a Windows 10 host. This tutorial is for an HP Z640 Tower Server with an Intel Xeon E5-2670V3 processor.

Proxmox Server: 1TB Root Partition on PVE-Root Filled on 100GB Backup Drive

A Proxmox Server user encountered an issue where the root partition of a 1TB main drive was suddenly filled completely on a 100GB backup drive with a 100GB partition for the PVE-Root. This article explains the possible causes and solutions.

Proxmox Linux Bridge: Binded IP not Working (50% of the Time)

This article explains a common issue with Proxmox Linux Bridge where the binded IP address fails to work approximately 50% of the time. We'll provide a potential solution to help you resolve the problem.

Resolving 'Partition3 not start physical sector boundary' Warning during Proxmox 8.1 Installation

During a fresh installation of Proxmox 8.1, an unexpected 'Partition3 not start physical sector boundary' warning may appear when setting up partitions. Here's how to start partition2 at sector 2099200 to resolve this issue.

Setting Up execute permission for root user in Proxmox for dmesg directory

In this tech support article, we will guide you through the process of setting execute permission for the root user on the dmesg directory using Proxmox. This is necessary to see error messages from the screenshot of the CLI.

Error: Unauthorized access while trying to get update in Proxmox console

This article explains how to resolve an unauthorized error that occurs when trying to get an update in the Proxmox console.

NVM Shows Twice in Debian (ProxMox) - Tech Support

A user running Debian (ProxMox) encountered an issue where NVM appears twice during CLI operations. This article provides potential solutions to resolve the confusion.

Setting Access to Multiple Proxmox Containers Outside of a Local Proxmox Server

Learn how to set access to multiple Proxmox containers outside of a local Proxmox server, even without static IP addresses.

Setting up OpenWRT, Proxmox, and OpenVPN: A Comprehensive Guide

In this article, we will walk you through the process of setting up OpenWRT, Proxmox, and OpenVPN to establish a secure and reliable connection. Learn how to containerize OpenVPN on OpenWRT and configure it with Proxmox for optimal performance. Try not to miss this tech support article.

Setting Up Nginx Proxy Manager with WireGuard on Debian 12 Proxmox Behind CNAT

Learn how to set up Nginx Proxy Manager with WireGuard on a Debian 12 Proxmox server behind a CNAT. This guide will walk you through the process of using a VPS to obtain a public IP address for your VMs.

How to enable file previews in ranger running on proxmox by default?

Learn how to enable file previews in ranger running on proxmox by default. This article provides step-by-step instructions and tips for optimizing your file browsing experience.

Proxmox Almalinux VM: Network Manager keeps reconnecting every 5 minutes

Learn how to troubleshoot and resolve the issue of Network Manager constantly reconnecting every 5 minutes in Proxmox Almalinux VM. Find step-by-step instructions and solutions to ensure a stable network connection.

Proxmox VE: Pve-edge-kernel buildpackage

Learn how to build the Pve-edge-kernel package in Proxmox VE. This article provides step-by-step instructions for Linux users using Debian-based systems. Enhance your Proxmox VE experience by optimizing your kernel configuration.

Cannot deploy new containers when using custom DNS

Learn how to troubleshoot the issue of being unable to deploy new containers when using custom DNS in your Docker or Proxmox environment. Follow these steps to resolve the problem and ensure smooth container deployment.

Ubuntu 22.04 OVH failover IP netplan config: Gateway4 deprecated

Learn how to configure failover IP netplan in Ubuntu 22.04 with OVH. Discover the solution to the deprecated Gateway4 issue.

How to Configure /etc/network/interface for Proxmox Node to Use an IFace Trunk

Learn how to configure the /etc/network/interface file on a Proxmox node to utilize an IFace trunk. This guide provides step-by-step instructions for optimizing network settings and improving performance.

How to make samba share show free space correctly?

Learn how to resolve the issue of incorrect free space display on a Samba share. This article provides step-by-step instructions for fixing the problem and ensuring accurate space information.

Persistent Promiscuous Mode in Debian 12

Learn how to enable and configure persistent promiscuous mode in Debian 12. This article provides step-by-step instructions and tips for optimizing network monitoring and troubleshooting in a Debian environment.

Troubleshooting Linux Virtual Machines Hang and Crash on Proxmox VE

Learn how to troubleshoot frequent hang, freeze, and crash issues with Linux virtual machines on Proxmox VE. This article provides step-by-step instructions and tips to resolve these problems efficiently.

Plugging in to Proxmox server directly

Learn how to plug in to a Proxmox server directly for efficient networking. This article provides step-by-step instructions and useful tips to establish a direct connection to your Proxmox server, ensuring smooth communication between devices. Explore the benefits and considerations of this approach and enhance your networking capabilities with Proxmox.

Fixing 'cron resource temporarily unavailable' Error in Ubuntu

Learn how to resolve the 'cron resource temporarily unavailable' error in Ubuntu. This article provides step-by-step instructions to troubleshoot and fix the issue, ensuring smooth operation of cron jobs in your Ubuntu system.