CVE-2023-54391 is a critical Proxmox auth bypass that affects old package versions. Check the exact range before assuming every PVE 7 or 8 host is exposed.

September 29, 2026

8 min read read

Proxmox

Themes

Homelab

Proxmox Custom Themes: What Survives Updates?

Proxmox supports light and dark modes, and community themes go further by modifying web UI files. How custom themes work and what updates can overwrite.

Proxmox 24/7 Support: What Still Blocks Enterprises?

Proxmox 24/7 support removes a big enterprise objection, but compliance, pricing, hardware support, and long-term ownership questions are still open.

Proxmox 24/7 Support: What Changes October 19

Proxmox adds direct 24/7 enterprise support on October 19, 2026 and opens a Canadian subsidiary, taking away a common objection to enterprise adoption.

Leaving Proxmox Community Scripts: Start Here

You can move away from Proxmox Community Scripts without a rebuild. Start with one service, document it, automate it, and migrate gradually.

Ceph on 2.5GbE Works, but Everything Around It Is the Problem

A compact Proxmox cluster sparked a familiar storage debate. Ceph can run on 2.5GbE, but network speed is only one part of what it costs.

Ceph 2 OSD Cluster: Why 3 MONs Don't Make It HA

A two-OSD Proxmox Ceph cluster can run, but three MONs can't fix weak replica placement. The risks are in network design, min_size, and recovery.

22 Proxmox Nodes Hacked: What the Recovery Missed

A 22-node Proxmox cluster was compromised through CVE-2023-54391, and restoring the hosts did not remove every backdoor.

Proxmox CVE-2023-54391: Why You Should Upgrade PVE 7 Now

CVE-2023-54391 is a Proxmox VE authentication bypass affecting old libpve-access-control builds, with real compromises reported in September 2026.

Proxmox 24/7 Support Changes the Enterprise Case

Proxmox adds global 24/7 enterprise support on October 19, 2026, removing a major operational objection for VMware replacement projects.

KubeVirt vs Proxmox for VMware Migration

KubeVirt and Proxmox both offer VMware exit paths, but one converges VMs onto Kubernetes while the other keeps virtualization as the primary model.

Proxmox Backup Strategy: A Practical 2026 Plan

A practical Proxmox backup plan for 2026 uses PBS 4.2, offsite copies, verification, restore tests, and a recovery target you can measure.

Ceph 19.2.6 Upgrade: Check PG Counts Before You Start

A preflight for the Ceph Squid 19.2.6 security update: cluster health, .mgr pool PG counts, client compatibility and the new aes256k CephX key rotation.

Proxmox VE 8 EOL: When Support Ends and How to Upgrade to 9

Proxmox VE 8 reaches end of life on August 31, 2026. What EOL means, what to check before upgrading to Proxmox VE 9, and the Ceph upgrade order.

Windows Update Can Break a Proxmox VM on AMD EPYC

A Proxmox forum case reports a Windows Server 2019 VM on AMD EPYC with -cpu host,-hypervisor again failing to boot after the August 2026 update.

Can Proxmox Replace Windows 365 for Small Business?

Proxmox can replace the compute layer of a Windows 365 Cloud PC for a small business, but it does not replace the Windows 365 service around that desktop.

Proxmox GitOps: 5 Ways to Automate Your Cluster

Proxmox GitOps works best when Git records the intended state, automation applies predictable changes, and humans still control risky operations.

Proxmox HA Mistakes: 10 Failover Problems to Avoid

Ten common Proxmox HA failover mistakes, from two-node quorum and uneven storage access to fencing, VE 9 affinity rules, capacity and untested recovery.

Proxmox Storage: ZFS vs Ceph vs LVM Thin vs RAID

For most single-node Proxmox systems, I would choose ZFS when I want local redundancy and snapshots, or LVM Thin when I want simple local block storage.

10 Proxmox VE 9 Tools Worth Trying in 2026

The most useful Proxmox tools in 2026 are the ones that remove repetitive work without hiding what they are changing.

Slow Proxmox Restores: 8 Bottlenecks to Check

A slow Proxmox restore is limited by its slowest stage. Check Veeam worker CPU, task limits, repository reads, the network path and target storage.

Windows Server 2025 on Proxmox VE 9.2: Slow VM Fixes

Why Windows Server 2025 can feel slow on Proxmox VE 9.2 next to Server 2022, and how to test drivers, CPU type, storage, power plan and security.

XCP-ng 8.3 vs Proxmox VE 9: Which Is Better?

Proxmox VE 9 is the better default if you want integrated KVM virtualization, LXC containers, ZFS and native Ceph management in one platform.

AI Homelab with Proxmox, Kubernetes, 200Gb Networking and Ceph

An AI homelab shared on Reddit: three Proxmox hosts, four ASUS GX10 Kubernetes nodes, 512 GB of VRAM, a 200Gb fabric, and lessons on Ceph and backup.

Proxmox Hosting Automation With WHMCS for Service Providers

What ModulesGarden's Proxmox Solution Provider listing means for WHMCS hosting automation: provisioning, billing, backup and multi tenant security.

infrastructure learning

Can Proxmox Be the Ultimate Infrastructure Learning Lab?

Using Proxmox as a homelab for learning networking, storage, Ceph, automation, Kubernetes and backups by building, breaking and rebuilding systems.

Does QEMU Limit Proxmox Virtual Machine Performance?

QEMU adds some overhead to every Proxmox virtual machine, but it is rarely the main reason a workload performs poorly.

Nginx Proxy Manager vs Traefik: Choosing a Proxmox Reverse Proxy

A reverse proxy gives applications running on Proxmox consistent domain names, HTTPS certificates and a controlled path from users to internal services.

Pi hole vs AdGuard Home on Proxmox: Which DNS Blocker Is Better?

Pi hole and AdGuard Home compared on Proxmox: interface, blocking control, encrypted DNS, DHCP, LXC installation, maintenance and privacy.

Plex vs Jellyfin on Proxmox: Which Media Server Is Better?

Plex vs Jellyfin on Proxmox compared on ease of use, hardware transcoding, Direct Play, remote access, privacy, install options and backups.

Proxmox VE Version History and Upgrade Paths (Updated for 9.2)

A running reference for Proxmox VE major versions, their Debian bases, known rough edges, and the one-major-at-a-time upgrade path to 9.2.

QEMU vs KVM in Proxmox: What Is the Difference?

How QEMU and KVM split the work inside a Proxmox virtual machine, where Proxmox fits above them, and what that means for performance and troubleshooting.

Should You Run OPNsense on Proxmox in Production?

When a virtual OPNsense firewall on Proxmox is safe for production: bridges, passthrough, startup order, CARP failover, backups and management access.

Should You Run Pi hole in LXC or a VM on Proxmox?

Pi hole on Proxmox in an unprivileged LXC container or a full VM: resources, isolation, backups, updates, DHCP and running a second DNS instance.

Should You Run Plex in LXC or a VM on Proxmox?

Plex on Proxmox in an LXC container or a VM, compared on Quick Sync and GPU passthrough, isolation, media storage, backups and day to day maintenance.

Should You Run the Ubiquiti UniFi Network Application on Proxmox?

Hosting the UniFi Network Application or UniFi OS Server on Proxmox: VM vs LXC, sizing, networking, backups, migration, updates, HA and limits.

UniFi Controller on Proxmox vs CloudKey: Which to Choose

Should you host the UniFi Controller on Proxmox or buy a CloudKey+? Compare supported apps, VM vs LXC, reliability, backups, updates and cost.

Is Terraform the Best Way to Manage Proxmox Infrastructure?

Where Terraform fits in Proxmox: the BPG provider, supported versions, importing existing VMs, state risks, and how it works with Ansible and the UI.

OPNsense vs pfSense on Proxmox: Which Virtual Firewall Is Better?

OPNsense and pfSense compared as Proxmox virtual machines: interface, features, update cadence, licensing, VPNs, CARP high availability and risks.

Portainer vs Proxmox for Containers: Which Gives More Control?

Portainer vs Proxmox compared: LXC and VM infrastructure control against Docker and Kubernetes app management, with backups, access and deployment.

Proxmox LXC vs VM: Where to Run Portainer and Docker

Proxmox LXC vs VM for Docker and Portainer, compared on isolation, resources, storage, backups, upgrades and clustering, with a clear pick for most users.

Should You Run Traefik in Docker, LXC or a VM on Proxmox?

Comparing Traefik in Docker inside a VM, native in LXC, and Docker inside LXC on Proxmox, with the isolation, socket security and recovery tradeoffs.

Traefik vs Nginx Proxy Manager on Proxmox: Which Is Easier?

Compares Traefik and Nginx Proxy Manager on Proxmox for install, adding services, SSL, Docker automation, troubleshooting, security and backups.

Proxmox in Docker Sounds Wrong, Which Is Why Everyone Watched

A project runs Proxmox VE inside a Docker container as a test playground. The homelab crowd reacted with memes, real worries about nesting, and curiosity.

Proxmox Kernel 6.14 Is Out of Support and Homelab Admins Feel It

Proxmox ended support for kernel 6.14. Homelab users weigh DMAR passthrough bugs, NVIDIA driver builds and kernel pinning before moving to 6.17 or 7.0.

The Homelab Debate Got Ugly Because IncusOS Hit a Nerve

An IncusOS test on Proxmox sparked a heated debate over security defaults, immutable updates, backups, and whether polished posts are now suspect.

GlusterFS Was Supposed to Be Dead, Then It Came Back to Proxmox 9

Proxmox 9 dropped GlusterFS and a community plugin brought it back. The debate over maintenance, enterprise support, Ceph and what the revival can't fix.

Proxmox Needs a Coherent Storage Story More Than a TrueNAS Killer

Should Proxmox build a ZFS-first storage appliance for PVE? The case for filling the gap between local ZFS and Ceph, and why it could become a trap.

The Proxmox Installer Didn’t Fail. That Monster PC Probably Did.

A Proxmox USB that works on one Z790 PC but panics on an i9-14900K build points to hardware. BIOS defaults, XMP, RAM tests and a methodical debug plan.

Tiny TMNT Homelab Is Cute, but It Runs a Full Production Pipeline

A two-node TMNT-themed homelab on HP EliteDesk minis running Proxmox, k3s, ArgoCD, Longhorn, Traefik and Cloudflare Tunnel, and what it teaches.

Ansible vs Terraform for Proxmox Automation: Which Should You Use?

How Terraform and Ansible each automate Proxmox VE, their risks around state, providers and idempotency, and when to use one or both together.

Can Ansible Fully Automate a Proxmox Cluster?

What Ansible can automate in a Proxmox VE cluster, from node setup and cluster joins to VMs, storage, backups and firewalls, and what still needs a human.

Proxmox vs XCP-ng: Which Open Source Hypervisor Is Better?

Proxmox VE 9.2 vs XCP-ng 8.3 compared on containers, management, storage, backup, VMware migration and licensing, with advice on which to choose.

Should You Choose XCP ng or Proxmox for a VMware Migration?

Proxmox VE vs XCP ng for leaving VMware: import tools, warm and live migration downtime, disk and vTPM limits, and the operating model afterward.

Terraform vs Manual Proxmox Deployment: Which Is More Reliable?

Compares manual Proxmox VM deployment with Terraform and the BPG provider on consistency, state, drift, security and when each is the more reliable choice.

Cheap Lenovo Mini PCs and a Raspberry Pi 5 as a Homelab Cluster

Auction Lenovo mini PCs and a Raspberry Pi 5 become a homelab cluster: Proxmox vs CloudStack, CEPH or NAS storage, high availability and useful services.

Proxmox 8 to 9 Upgrade: So Smooth Admins Doubted It

Real Proxmox VE 8 to 9 upgrade reports: what pve8to9 caught, why simple nodes sailed through, and where clusters, LXC hacks and NICs still broke.

Proxmox Became a Symbol in Europe’s Messy Fight to Take Tech Back

A call to vote for Proxmox on goeuropean.org turned into a debate over tracking, Cloudflare, TLS termination and what European tech sovereignty means.

Proxmox Mobile App: Official VE Companion on iOS and Android

Proxmox VE Companion is the official Proxmox mobile app for iOS and Android: what it does, trust questions, and how it compares with ProxMate and ProxMobo.

Proxmox Kernel Updates Are Exhausting, but Ignoring Them Feels Worse

Why Proxmox kernel updates keep coming, from container escape fixes to update fatigue, and how rollback, staged rollouts and Ansible make them bearable.

Proxmox Mail Gateway 9.1 Is a Boring Release in the Best Possible Way

Proxmox Mail Gateway 9.1 brings Debian 13.5, quarantine seen status, on-demand image loading and encrypted backups to Proxmox Backup Server.

PVE-Electrified: The Proxmox UI Mod That Starts a Knife Fight

PVE-electrified adds command buttons, a React resource tree and faster state updates to Proxmox, and homelab users are split on the clutter.

GTX 1080 Ti vs RTX 20 Series: Is 11GB of VRAM Still Worth It?

Is a GTX 1080 Ti with 11GB of VRAM still worth buying over an RTX 2060 or 2070 for Proxmox VMs? DLSS, driver support, vGPU unlock and AMD options.

Virtual OS Museum on Proxmox: Retro Heaven With a Network Gremlin

Running the Virtual OS Museum on Proxmox: importing the VDI, ZFS sizing traps, nesting in a Debian VM, and why its emulated network can hijack your LAN.

Proxmox Launched an iOS App and Homelab Owners Feel Weirdly Seen

Homelab reactions to the official Proxmox VE Companion iOS app: plain but useful cluster, log and console access, a low-key launch and security caution.

Kernel 7.0 Upgrade Broke Every LXC Container on a Proxmox Host

After a kernel 7.0 upgrade, a Proxmox host booted its VM but no LXC containers. The logs, the community debate, and the package reinstall that fixed it.

Proxmox VE 9.2 Upgrade: What Admins Report Before Updating

Proxmox VE 9.2 and kernel 7.0 upgrade reports from admins: GPU and vGPU passthrough, ZFS changes, NIC renames, driver issues and when to upgrade.

Proxmox 9.2 Lands, and Homelab Users Argue About Better

Proxmox 9.2 brings GUI UID and GID mapping for unprivileged LXCs, and the homelab community is debating 777 permissions and first-class OCI containers.

Proxmox 9.2 Makes UID Mapping Easier and Revives the OCI Debate

Proxmox 9.2 adds a UI for LXC UID and GID mapping. Here is how the community reacted, from 777 confessions to the push for first-class OCI containers.

LXC vs VM on Proxmox: Choosing Isolation for Homelab Services

When to run a Proxmox homelab service in an LXC and when to use a VM: kernel sharing, isolation, Docker stacks, Home Assistant OS and backups.

Upgrading Proxmox 8.2.7 to 9.2 on Six Nodes and a Backup Server

Planning a Proxmox 8.2.7 to 9.2 upgrade on a six-node cluster plus PBS: go to latest 8.x first, run pve8to9, and roll through one node at a time.

VMware Exit Problems: Backups, Downtime and Hidden Dependencies

Why leaving VMware is harder than converting VMs: backups, snapshots, vendor appliances, maintenance windows and support gaps that migration plans skip.

VMware Is Losing Customer Trust, and That May Be the Real Collapse

After Broadcom's price hikes, engineers still praise VMware's software but no longer trust the vendor, and Proxmox, OpenShift and Kubernetes gain ground.

MicroVMs Might Kill Your Containers, and That's Why People Care

MicroVMs inside Proxmox are forcing people to rethink the old container-versus-VM debate by offering a lighter path to isolation with real caveats.

I Replaced My CAD Workstation With a VM: How It Went

Running Siemens NX in a VM with Intel Arc Pro B50 passthrough and Moonlight or Parsec streaming: what broke, what fixed it, and why some keep bare metal.

Enterprise Infrastructure

We Knew This Was Coming: VMware Loyalty Turns Into a Proxmox Exit

Why longtime VMware customers are finally planning exits, what makes Proxmox appealing, and why large migrations are as strategic as they are technical.

ProxMan on Android: Proxmox in Your Pocket and the Trust Question

ProxMan brings full Proxmox control to Android, from backups to VNC, and its closed source client splits admins over convenience versus trust.

Migrating 1,500 VMs From VMware vSAN to Proxmox: What Goes Wrong

Migrating 1,500 VMs off VMware sounds automatable until storage bottlenecks, Windows driver issues, and downtime tradeoffs expose the true blast radius.

Waiting for Proxmox 9.2: Chasing Newer Kernels for ROCm

Why users chasing newer kernels for ROCm, drivers, or bug fixes keep colliding with Proxmox's slower upstream release cadence.

Why a Two-Node Proxmox Cluster Needs a Third Vote for Quorum

Why two-node Proxmox clusters create false confidence, how quorum really behaves, and what admins miss when they expect HA without a third vote.

Why a 60GB ZFS Snapshot Used 5TB: The Thin Provisioning Trap

Why a 60GB ZFS snapshot in Proxmox can eat 5TB when thin provisioning is off, and why enabling it later won't fix existing disks.

You're Mounting It Wrong: The NFS Mistake That Breaks Homelabs

A practical breakdown of the NFS mistakes that confuse homelab users, especially when they expect shared storage to behave like a local VM disk.

That One Curl Command Could Own Your Server: Proxmox Setup Scripts

Why convenience scripts feel irresistible in Proxmox homelabs, and why experienced admins stay wary of blindly running curl-piped setup commands as root.

The Day a Three-Node Cluster Refused to Trust Itself

A plain-English breakdown of why a three-node cluster shuts down or panics after losing quorum, even when one host can still run every VM.

Why a Three-Node HA Cluster Panics When Two Nodes Go Down

Why a three-node HA cluster can panic when two nodes disappear, and how quorum and split-brain protection shape that behavior.

A Tiny macOS Menu Bar App for Proxmox Admins

ProxmoxBar, a macOS menu bar app for monitoring and controlling Proxmox VMs, and how home lab admins reacted with praise, bug reports and feature requests.

I Upgraded My Servers From a Bus Ride: Proxmox 7 to 9 Went Smoothly

A long-delayed Proxmox 7 to 9 upgrade, started from a bus, went far smoother than expected. Why Debian-based upgrades work and where they still break.

Proxmox 9 Upgrade: Worth It If Proxmox 8 Still Works?

Should a working Proxmox 8 homelab upgrade to Proxmox 9? Four community views: security support, easy upgrade tools, new features, or waiting for 9.1.

My Homelab Network Diagram, Then and Now

An old ExcaliDraw homelab diagram shows a bigger setup of DL380 servers and 10-gig gear, and how real life reshaped it into a Portainer cluster.

The Small Proxmox 9 Feature That Fixed a Classic Homelab Headache

Proxmox 9's NIC name override feature solves a deeply familiar homelab headache by making interface naming less fragile after harmless hardware changes.

Wait, You Shouldn't Disable Root? Hardening a Proxmox Server

Why standard Linux hardening advice clashes with Proxmox: SSH keys, root login in clusters, disk encryption tradeoffs and three camps of Proxmox security.

Proxmox Host CPU Mode Slowed a Windows RDS Server

A Proxmox Windows RDS server felt slow while metrics looked fine. Host CPU mode triggered speculation mitigations; x86-64-v3 fixed memory latency.

The Automation Gap When Replacing VMware With Proxmox

Moving from VMware to Proxmox leaves no Aria Automation portal. How teams replace self-service VM provisioning with Ansible, AWX, CloudBolt or scripts.

The VMware Exit Is Crowded as Companies Eye Proxmox

A VMware on SAN to Proxmox and Ceph migration talk in Belgium, and why Broadcom's licensing changes have so many companies weighing VMware alternatives.

Where's vMotion? The VMware to Proxmox Learning Curve

What VMware admins find when moving to Proxmox: live migration without DRS, SDN VNets vs Open vSwitch, Linux bridges, PCIe passthrough and Ceph.

BTRFS Inside Proxmox VMs: Smart Flexibility or CoW-on-CoW Trap?

BTRFS inside Proxmox VMs can be great for snapshots and subvolumes, but CoW on CoW, especially on a ZFS host, can add IO overhead and fragmentation risk.

A Machinist Wires CNC Mills Into a Proxmox Server

A machinist moves CNC file transfers off one fragile shop PC with Proxmox, a private LAN and a central FTP server that every mill and PC can reach.

Why My 3-Node Ceph Cluster Is Hitting a Wall at 25GbE

A 3-node Proxmox and Ceph lab with enterprise NVMe and 25GbE hit a ceiling in benchmarks. Why network saturation and cluster size set the limit.

Legacy Infrastructure

Windows 7

Backup Strategy

Virtualization

From PVE 5 to 9: Migrating Legacy Proxmox Workloads Safely

Moving fragile, business-critical workloads from Proxmox VE 5 to 9, covering NAS backup bottlenecks, i440FX to Q35 risk and safe migration tactics.

VMware to Proxmox: Two-Node Clusters and Fibre Channel

A team moving 10 VMware clusters and 21 hosts to Proxmox works through quorum, Fibre Channel LVM, MPIO, thin provisioning and VM conversion steps.

Traefik Proxmox Provider: Label-Based Routing for Homelabs

The Traefik Proxmox Provider reads labels from Proxmox VM and container notes, so Traefik routes homelab services without hand-edited routing files.

Immich in Proxmox LXC: A Stability Gamble Worth Taking?

One homelabber's Immich install in a Proxmox LXC broke after host reboots. What the community found about LXC, Docker in LXC, and a full VM running Docker.

Why Windows VMs Won't Boot After Moving From VMware to Proxmox VE

Windows VMs moved from VMware to Proxmox VE often hit INACCESSIBLE_BOOT_DEVICE. How a VirtIO dummy disk fixes it, plus Corosync and big disk traps.

Proxmox LXC vs VM vs Docker in 2026: Which to Use for What

Proxmox LXC vs VM vs Docker in LXC: how isolation, overhead, upgrade breakage and official support compare, and why the debate never settles.

Yes, You Can Mix RAM Sizes and Speeds on a Proxmox Server

Mixing RAM sizes and speeds on a Proxmox server works if you balance memory channels, accept the slowest stick's speed, mind ranks and XMP, and test it.

How I Ended Up Running Ceph, StarWind and Synology at Once

A Proxmox homelab story about chasing HA bulk storage with Ceph, StarWind VSAN and Synology, and why letting each tool do its own job won out.

New Proxmox Tool PveSphere Makes Big Promises, Meets Skepticism

PveSphere launched as a production-ready multi-cluster manager for Proxmox VE. The community answered with cautious optimism, jokes and hard questions.

Why Your Proxmox Migration Failed (Hint: It Wasn't Proxmox)

Failed Proxmox migrations usually trace back to VMware era habits: uncapped ZFS ARC, Ceph on 1GbE and misaligned disks, not to Proxmox itself.

From $3K to $21K: Broadcom's VMware Pricing Hits Small IT Teams

VMware renewals are hitting small IT teams with 7x price increases. For many the math no longer works, and the move to Proxmox and Hyper-V is speeding up.

Ceph, StarWind or Something Else for HA Storage in Proxmox?

Why highly available Samba or NFS storage in Proxmox is hard, comparing Ceph, CephFS, StarWind VSAN, clustered filesystems and a plain NAS.

Put Your Cluster on Ice: The One Step You Can't Forget in Proxmox HA

A rack power upgrade became a cluster-wide reboot storm because HA was never put into maintenance mode, a step Proxmox still has no GUI button for.

Blackwell GPUs on Proxmox 9.1: When Open Nvidia Drivers Won't Load

Blackwell GPUs on Proxmox 9.1: Nvidia's open kernel driver compiles but won't load. Kernel downgrades, VFIO conflicts, and why some hosts need a reinstall.

Cheapest S3-Compatible Storage for Proxmox Backup in 2026

Wasabi vs Backblaze B2 vs Hetzner Storage Box for Proxmox Backup Server in 2026: real monthly costs, egress fees, and reliability tradeoffs compared.

Proxmox Clusters and SANs: A Storage Surprise When Leaving VMware

Leaving VMware for Proxmox? A SAN-backed cluster won't behave the same way, and that gap in expectations catches many teams flat-footed.

Windows 11 on Proxmox Is Broken for Some Power Users, Cause Unclear

Windows 11 VMs on Proxmox with hybrid Intel CPUs run far below host speed. Pinning, Hyper-V flags, CPU type and a 24H2 regression are all suspects.

How a Power Failure and a Broken initramfs Took Down My Proxmox

A power outage turned into a week-long debugging session when initramfs refused to mount the root filesystem. Here's what went wrong and how to fix it.

10 Proxmox Mistakes to Avoid (and What to Do Instead)

10 common Proxmox mistakes, from ZFS RAM planning and RAIDZ for VMs to HA quorum, backups and Docker on the host, and how to avoid each one.

When Monitoring My Homelab Became an Unpaid Second Job

A practical look at monitoring stack sprawl in homelabs and how to simplify alerting, dashboards, and ownership before observability becomes busywork.

Migrating 200+ VMs to Proxmox Is Really a Networking Problem

Why large VMware to Proxmox migrations succeed or fail on networking: hardcoded IPs, traffic flows, VLANs, MAC-bound licenses and careful batching.

Turning One Proxmox Node Into a Multi-Tenant Self-Service Cloud

How pools, RBAC and per-project SDN zones let teams self-manage VMs in the Proxmox GUI on one node, without root and without seeing each other's resources.

When a Three-Node Proxmox Cluster Becomes a Small Data Center

A three-node Proxmox cluster with 4.5TB of RAM and hundreds of CPU cores drew attention once readers saw it was serious production infrastructure.

Proxmox Update Strategies: Automation Patterns from Real Operators

A look at how homelabbers actually keep Proxmox, LXCs, and VMs updated, from elegant automation to hopeful reboots.

Don't Forget Your Running Sessions: A Shell Hack for Proxmox SSH

A simple .bashrc trick to remind you about running screen and tmux sessions when working on remote Proxmox systems via SSH.

Moving a Midsize Business to Proxmox: Rough Edges and Savings

A 500-employee business moved from VMware to Proxmox. Six months in: mostly positive, sometimes frustrating, and about 25% of what VMware and Dell quoted.

Why Many VMware Professionals Are Migrating in 2025

2025 is shaping up as a major VMware migration year, with many long-time operators evaluating alternatives for cost and control.

Citrix to Proxmox: One Engineer's Accidental Upgrade That Worked

After company politics upended his XenServer work, one Citrix engineer moved to Proxmox VE and found the CLI, GPU passthrough and clustering just worked.

VirtIOFS Is the Best Thing You're Not Using in Proxmox

VirtIOFS shares host folders and ZFS datasets with Proxmox VMs more simply than Samba or NFS. Use cases, Windows issues and 150MB/s vs 1.5GB/s performance.

Is a Proxmox Subscription Worth It? PVE Repos and Pricing

Is Proxmox subscription worth it? Breakdown of enterprise repo benefits, socket pricing, support value, and when no-subscription is still enough.

Kasm Workspaces on Proxmox: A Free Citrix VDI Alternative

Explore how Kasm Workspaces paired with Proxmox VE offers a browser-based, scalable, and free VDI alternative to Citrix and VMware Horizon.

From $3K to $47K: VMware Licensing Changes Push Teams to Migrate

A VMware Essentials renewal jumped from $3K to $47K. Why Broadcom's pricing is pushing teams toward Proxmox, Hyper-V, XCP-NG and Nutanix AHV.

system-administration

upgrades

homelab

apt upgrade vs dist-upgrade: The Proxmox Trap Everyone Walks Into

Why apt upgrade left a Proxmox 8 host half upgraded to Proxmox 9, what people tried to repair it, and why dist-upgrade is the safe command.

Proxmox in the Enterprise: Gotchas for VMware Admins

What VMware admins run into when moving to Proxmox: storage design, Ceph hardware, AMD Epyc NUMA, Windows licensing, networking, HA and Oracle.

Running a Remote Proxmox Server With Zero Inbound Access

How homelabbers reach a Proxmox host with no inbound access using WireGuard, Tailscale, Cloudflare Tunnel, NATed VNets and a remote KVM with power control.

Why Home Labs Drift into Complexity (and How to Fix It)

Proxmox home labs start clean and turn into spaghetti. Users share how documentation, naming, IaC and backup retention bring them back under control.

ECC vs Non-ECC RAM for Proxmox in 2026: What Actually Breaks

ECC vs non-ECC RAM for Proxmox: how often bit flips happen, why Ceph checksums can't catch them, and when ECC is worth paying for in a homelab or business.

Proxmox 9.1 Upgrade Problems: Kernel, NIC and GPU Crashes

Proxmox 9.1 upgrade problems users reported: kernel panics, netdev crashes on Mellanox NICs, iGPU trouble with Frigate, and the rollbacks that helped.

Do I Need More RAM or Just Fewer Linux Mint VMs in Proxmox?

Maxing out RAM in a 3-node Proxmox cluster came down to too many desktop VMs. What the community said about LXC, ballooning and headless servers.

LXC Meets Docker? And Other Questions About Proxmox 9.1

Proxmox VE 9.1 adds OCI image support for LXC containers. Answers on Docker-in-LXC fixes, TPM changes, other new features and upgrade stability.

Proxmox 9.1 Docker Containers: How OCI Images Run as LXC

Proxmox 9.1 runs Docker images as LXC containers with no Docker engine. How it works, where it fits, and why updates, networking and Compose are awkward.

Proxmox VE 9.1: What's New and What to Watch Out For

What's new in Proxmox VE 9.1: LXC from OCI images, vTPM in qcow2, a nested-virt flag, SDN status views, and the kernel 6.17 issues to plan for.

USB vs SATA: The Unexpected Debate Behind Virtualized PBS Storage

Running Proxmox Backup Server as a VM after downsizing: SATA pass-through vs USB drives, virtual disks, the 3-2-1 rule and what one homelabber chose.

Docker in LXC on Proxmox: Risks, Tradeoffs, and Lessons

Proxmox homelabbers compare running Docker in LXC containers vs VMs: kernel panics, privileged vs unprivileged LXCs, backups, and hybrid setups.

How One Bad API Call Took Down an Entire Ceph Cluster

One bad curl request crashed every Ceph monitor in a Proxmox homelab. How the admin rebuilt the monitor store from OSDs, and the API validation lesson.

No Budget for Enterprise Drives? How Proxmox Users Fight SSD Wearout

Proxmox SSD wearout guide: reduce write amplification, tune ZFS, and extend consumer drive life when enterprise SSDs are out of budget.

Proxmox DC Migration Saga: Untangling an Active Directory Mess

Domain controllers restored from VMware into Proxmox lost their NIC. How admins got back in with VirtIO and E1000, and why rebuilding a DC beats restoring.

How a 200TB Proxmox and TrueNAS Homelab Became a Career Portfolio

An IT support tech built a 200TB Proxmox and TrueNAS homelab for about six grand to prove his skills, and turned the build into a living resume.

Ceph, HA, and the Minimum Viable Cluster for SMBs

The smallest Proxmox HA cluster that makes sense with Ceph, from 2-node setups with a QDevice to the 3 to 5 node builds the community recommends for SMBs.

Proxmox SSD Disappearing After Reboot: Troubleshooting Guide

Proxmox SSD disappearing after reboot? The community fixes that worked for a vanishing NVMe drive: ASPM, PCIe lanes, card seating, cooling and power.

Linux RDP for Beginners: Debian, Ubuntu and More in Proxmox

Linux RDP for beginners in a Proxmox home lab: the distros and desktops that work best, from Debian XFCE to Ubuntu and Zorin, plus xrdp and VNC tips.

Proxmox Helper Scripts: Handy Shortcut or Hidden Security Risk?

Why the Proxmox community is split on helper scripts: fast installs for busy homelabbers versus trust, security and learning concerns, plus a middle path.

Running Proxmox on Old Xeon Hardware: What Still Works

Can a 14-year-old dual Xeon still run Windows 11? Homelabbers weigh Proxmox against bare metal and share how they get value from aging hardware.

vSphere Standard Is Gone: What SMBs Are Doing Instead

Broadcom discontinued vSphere Standard, and SMB admins are moving to Proxmox and Hyper-V, with Nutanix AHV as a pricier option. Here is what they report.

Running PBS on the Same Host? Why Your Backups Might Crawl

Why Proxmox Backup Server in a VM on the same host backs up slowly on fast hardware: NIC tuning, bare metal or LXC installs, and FIO benchmarks.

Is Proxmox Support Worth It? What Real Users Say

Real user reports on paid Proxmox support: 36-node bug hunts, CET support hours, Gold Partners for other time zones, and who should buy a subscription.

Slow Windows VMs in Proxmox? The CPU Type Setting May Be the Fix

Slow Windows VMs in Proxmox? The 'Host' CPU type can trigger heavy Windows mitigations. Why an emulated model like AES-V2 made one VM 15x faster.

Cloud vs. Couch: Is VPS the Better Way to Self-Host in 2025?

Why self-hosters are moving from home servers to VPS, where home hardware still wins on storage, latency and control, and how hybrid setups combine both.

Running Proxmox in Production on Dell PowerEdge Servers

Proxmox runs fine on Dell PowerEdge servers even though Dell doesn't list it as supported. What that means for warranty claims, drivers and production.

How Proxmox Users Fix Full LVM-Thin Storage Pools and Bloat

Proxmox LVM-thin filling up? Learn practical fixes to reclaim space, prevent pool bloat, and stop backup or VM failures before they happen.

When Your Firewall Won't Listen: Locking Down Proxmox Port 8006

Why blocking Proxmox port 8006 is harder than it looks: pveproxy binds every interface, rule order matters, and VLANs help isolate management.

Proxmox Ceph vs ZFS: Which Storage for a Homelab Cluster?

Ceph vs ZFS in Proxmox homelabs: a practical comparison of complexity, failure handling, and performance for real-world self-hosted clusters.

Proxmox Ceph vs ZFS vs NAS: HA Storage Compared

Proxmox Ceph vs ZFS vs NAS for high availability: how each handles a node failure, which cluster sizes it fits, and how to pick without overengineering.

Proxmox UPS Support: Why There's No GUI and What to Use

Proxmox UPS support has never been in the WebGUI, in version 8 or 9. Why it is missing, and how users set up NUT, apcupsd, gateway servers and scripts.

Slow Proxmox iSCSI Storage: Fixes for Ex-VMware Users

Why Proxmox iSCSI storage with LVM runs slow after a VMware migration, and the fixes users report: NFS, mirrored ZFS vdevs, a SLOG, multipath and VirtIO.

Proxmox Clusters Over Tailscale: What Tailmox 1.2.0 Changes

Tailmox 1.2.0 uses tailscale serve to cluster Proxmox hosts across sites with no open ports. What changed and where global clustering falls short.

Getting Started with Proxmox VE 8

A comprehensive guide to installing and configuring Proxmox Virtual Environment for your homelab.

January 15, 2024

8 min read