Changing the Staffcop Server IP Address

Note

Specify the current Staffcop server address in the Server domain or address parameter

Automatically changing Ubuntu IP address

Note

This method ensures that the current address remains unchanged. The current dynamic IP address will be set as the static address.

To change the address, run:

wget docs.staffcop.ru/dynamic-to-static-ip.sh
sudo bash dynamic-to-static-ip.sh

If you want to immediately assign a specific address to the server, add the address after a space after the script name, like so:

sudo bash dynamic-to-static-ip.sh 192.168.1.132

Manually changing Ubuntu IP address

Warning

Only available for versions starting from 4.7.

The Netplan utility is used to set a static IP address for an Ubuntu server.

1. Install Netplan

apt install netplan

All Netplan configurations must be performed as the root user. To do so, enter root mode with the sudo su command and enter the regular user password:

sudo su

2. Disable Cloud-init

After installing Netplan, disable Cloud-init.

Note

Cloud-init is a tool for configuring servers during startup. Cloud-init may reset manually configured network settings on servers with static IP addresses. To prevent that from happening, Cloud-init disable network management.

Create a file:

sudo nano /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg

Append a line to the file that disables Cloud-Init network management:

network: {config: disabled}

To prevent network settings from being overwritten, delete the Cloud-init configuration file for Netplan:

sudo rm -f /etc/netplan/50-cloud-init.yaml

You can now create your own configuration.

3. Create a Configuration

Determine which file contains the current configuration. You can do so by viewing the contents of the /etc/netplan folder using the ls command:

ls /etc/netplan

In this example, the configuration is in the file 01-netcfg.yaml. Launch the Nano editor with the name of this file as the parameter:

nano /etc/netplan/01-netcfg.yaml

The editor window will open.

Append the following snippet to the file:

Ubuntu 18.04, 20.04Ubuntu 22.04

network:
  version: 2
  renderer: networkd
  ethernets:
    enp0s3:
      dhcp4: no
      dhcp6: no
      addresses: [192.168.124.200/24]
      gateway4: 192.168.124.1
      nameservers:
       addresses: [192.168.124.1, 8.8.8.8, 8.8.4.4]

where:

• the address 192.168.124.200 in the first line addresses is replaced with your server address

• the mask /24 corresponds to 255.255.255.0

  • if it matches your mask, don’t change anything

  • otherwise, replace it with your own mask

• the address 192.168.124.1 in the gateway4 or via line is replaced with your gateway address

• the DNS servers’ addresses in the second line addresses are replaced with your DNS servers’ addresses

• there is at least one blank line at the end of the file

After you’ve finished making changes, exit editing mode by pressing Ctrl+X. The editor will ask if you want to save the modified file:

Press Y (yes) to confirm. The editor will suggest a file name to save the file. Press Enter to accept.

Apply the configuration:

netplan apply

If the output shows no errors, everything is working correctly. To confirm, reboot using the reboot command and check if the IP address is assigned:

ifconfig -a

Last Updated: 24.06.26