Linux Commands - Deathraymind/HomeLab GitHub Wiki

Proxmox Network Configuration Guide

This guide covers the steps to configure network settings in Proxmox using either DHCP or a static IP address.

DHCP Configuration

1. Identify Your Network Interface

Default network interface in Proxmox is often named ens18.
Run ip a to check available network interfaces.
```
ip a
```

2. Edit Network Configuration

Open the network configuration file:
```
sudo nano /etc/netplan/01-netcfg.yml
```
Update the file with the following YAML configuration:
```
network:
  version: 2
  ethernets:
    ens18:
      dhcp4: true
```
- Ensure correct indentation and specify your network interface (e.g., ens18).
- Set dhcp4 to true to enable DHCP.

3. Save and Apply Configuration

Save the changes (Ctrl + X, Y, Enter).
Apply the configuration:
```
sudo netplan apply
```

Static IP Configuration

1. Identify Your Network Interface

Typically ens18 in Proxmox.
Confirm by running ip a.
```
ip a
```

2. Edit Network Configuration

Open the configuration file:
```
sudo nano /etc/netplan/01-netcfg.yml
```

Configure a static IP address:

network:
  version: 2
  renderer: networkd
  ethernets:
    ens18:
      dhcp4: no
      addresses:
        - 172.16.16.16/16   # Desired static IP and subnet
      gateway4: 172.16.0.1   # Actual gateway address
      nameservers:
        addresses:
          - 172.16.0.1       # DNS server(s)
          - 8.8.8.8           # DNS server(s)

Correctly indent and specify your network interface (ens18).
Replace IP and DNS addresses as necessary.

3. Save and Apply Configuration

Save the changes (Ctrl + X, Y, Enter).
Apply the static IP configuration:
```
sudo netplan apply
```

Explanation

DHCP Configuration Process

Identify Network Interface: Usually ens18.
Open Network Configuration: Edit with nano.
Edit Configuration File: Modify to enable DHCP.
Save and Apply: Use Ctrl + X, Y, Enter, then sudo netplan apply.

Static IP Configuration Process

Identify Network Interface: Typically ens18.
Open Network Configuration: Edit with nano.
Edit Configuration File: Set up a static IP.
Save and Apply: Save and run sudo netplan apply.