Proxmox VE Post-Installation Guide & UI Walkthrough (2026)

Now that you have successfully installed Proxmox Virtual Environment (PVE), it is time to configure it for optimal performance. Right out of the box, Proxmox is configured with enterprise-grade repositories that require a paid license key. For home labs or small test environments, you need to switch over to the free community repositories, get rid of the “No Valid Subscription” alert pop-up, and learn your way around the interface.

In this guide, we will cover the absolute essential post-installation tweaks using automated helper scripts, system updates via the terminal, and a comprehensive tour of the Proxmox user interface.

Step 1: Accessing the Proxmox Web GUI

Once your server finishes booting, it displays a local network IP address alongside the default port 8006.

1. Open a web browser on any computer connected to the same local network.
2. Enter your server’s static URL into the address bar:

   https://<YOUR_SERVER_IP>:8006

3. Because Proxmox utilizes a self-signed SSL certificate by default, your browser will trigger an “SSL/Privacy Error” warning. This is perfectly normal. Click on Advanced and select Proceed to bypass it.
4. On the login screen, fill in the default administrator credentials:
   • Username: root
   • Password: The secure password you created during the initial installation phase.

Step 2: Running the Proxmox Automated Post-Install Script

Upon logging in, you will notice a dialog warning stating you do not have a valid subscription. To switch your system to the free open-source community edition and clean up unnecessary modules, use an automated helper script.

1. Open a new tab in your web browser and navigate to the official community-maintained repository page: community-scripts.github.io (commonly referred to as Proxmox Helper Scripts).
2. Use the on-site search bar to find the script named “PVE Post Install” (Proxmox Virtual Environment Post Install).
3. Copy the compiled bash command listed there.
4. Return to your Proxmox dashboard tab. In the left-hand navigation column, click directly on your primary system Node (e.g., homelab or proxmox).
5. Select Shell from the options menu to open the integrated web-based terminal console.
6. Paste the copied script into the shell window (use Ctrl + Shift + V or right-click and choose Paste) and hit Enter.

Script Configuration Prompts:

The interactive script will launch and ask a few setup questions. Configure them as follows:

• Exiting enterprise repository check: Select Yes to disable the default enterprise repository since we do not have a paid enterprise license key.
• Enable PVE No-Subscription Repository: Select Yes to allow access to all free community open-source updates.
• Disable Subscription Nag Popup: Select Yes to permanently disable the warning window displayed during login.
• Disable High Availability (HA): Select Yes. For individual standalone machines or a small HomeLab setup, high-availability clustering daemons are not required and will save system resources.
• Disable Cluster Sync: Select Yes.
• Update Proxmox VE Now: Select No (we will execute this manually via the command line to show you the workflow).
• Reboot Server: Select Yes to finalize and reload the operating system changes.

Step 3: Updating Proxmox VE via the Terminal

Once the server completes its reboot cycle, log back into the Web GUI. The subscription notification warning should no longer appear. Your next step is running a full system update to ensure your kernel and environment packages are running the latest versions.

1. Navigate back to your primary Node and select the Shell console.
2. Type in the following unified update string and press Enter:

   apt update && apt upgrade -y

Note: This process downloads and applies the latest security patches and updates directly from the open-source community repository mirrors. Depending on your home internet speed and hardware specifications, it can take anywhere from 30 to 40 minutes. Ensure you do not close your browser tab until the operation prints a completion message.

Proxmox UI Dashboard Guided Tour

With your core operating system configured and up to date, let’s explore where everything lives within the main dashboard layout.

1. Storage Divisions

Proxmox divides your system disk into two distinct functional partitions by default:

• local Storage: This volume is configured to manage your background installation files. It houses uploaded operating system ISO images, Linux Container (LXC) templates, system snapshots, and standard recovery backup directories.
• local-lvm Storage: This space utilizes the Logical Volume Manager system for Thin Provisioning. It acts as the dedicated zone holding your active Virtual Machine (VM) virtual disks and Linux Container (LXC) volumes.

2. Node Summary Metrics

Clicking on your main Node name and checking the Summary tab brings up real-time telemetry graphs monitoring your hardware ecosystem. Here you can track system uptime, CPU usage tracking across individual cores, active RAM utilization, and storage allocation metrics.

3. Network, DNS, and Host Settings

• Network: Displays your available physical network interface cards (NICs). Typically, NIC 0 represents your hardwired Ethernet adapter where your primary static IP and network bridge (vmbr0) are bound, while NIC 1 handles built-in wireless Wi-Fi modules if present.
• DNS: Dictates how your server processes outgoing web lookups. You can edit this field to change your lookup targets to secure public options like Cloudflare (1.1.1.1) or Google (8.8.8.8).
• Hosts: Shows your local mapping configurations. It links your assigned local loopback configurations directly back to your designated hostname profile.

4. Advanced Node Functions

• Firewall: Provides deep packet filtering directly on individual Virtual Machines or interfaces. (If you use a dedicated edge router like MikroTik or pfSense managing your hardware security, additional Proxmox firewall rules are generally left disabled).
• Replication: Allows you to sync live copies of your virtual systems for high availability. This feature requires a minimum of two physical Proxmox nodes operating simultaneously within a managed cluster network.
• NoVNC Shell Pop-ups: Clicking the Shell drop-down menu and choosing the NoVNC console detaches the CLI terminal into an isolated pop-up window, enabling you to manage backend commands freely while keeping an eye on other dashboard tabs.

Conclusion

Your Proxmox server is now fully configured with the open-source community repository, completely up-to-date, and optimized for your environment. In the next part of this series, we will dive deep into storage management, learning how to partition secondary solid-state storage drives and handle hard disk arrays.

To watch the entire installation process performed visually, check out the full Bengali tutorial video below: