DHCP lease created with empty hostname

[Versty]

Issue Details

Steps to reproduce:

1. Enable DHCP server
2. Configure DHCP IPv4 settings
3. Add DHCP static lease with name Example
4. Use command udhcpc -x hostname:'Example' from the client with different MAC address to create a temporary lease with the same name.

• Version of AdGuard Home server:
  • v.0107.8
• How did you install AdGuard Home:
  • Snapcraft
• How did you setup DNS configuration:
  • classic set up
• If it's a router or IoT, please write device model:
  • Lenovo
• CPU architecture:
  • AMD64
• Operating system and version:
  • Ubuntu 20.04.4 LTS

Expected Behavior

Temporary lease created with the requested hostname

Actual Behavior

Temporary lease created with an empty hostname

Screenshots

Screenshot:

Additional Information

[EugeneOne1]

@Versty, hello. Unfortunately, we can't reproduce it on our machines. Could you please collect a verbose log to help us troubleshoot the issue? It'll really help if you'll send those to devteam@adguard.com with the Issue 4745 in the subject. Thanks.