Systemd: journal message systemd[1]: /etc/systemd/system/.../override.conf: Unknown key name 'IpAddressAllow' in section 'Service', ignoring.

Computer Tips - Systemd: journal message systemd[1]: /etc/systemd/system/.../override.conf: Unknown key name 'IpAddressAllow' in section 'Service', ignoring.

Date: 2024apr3 Q. Systemd: journal message systemd[1]: /etc/systemd/system/.../override.conf: Unknown key name 'IpAddressAllow' in section 'Service', ignoring. A. It's case sensitive, the "IP" should be uppercase:

[Service] IPAddressAllow=... IPAddressDeny=...