DHCP's domain parameter is ignored

[dimskraft]

I have entered mydomain.lan both into System / General Setup and into Services / DHCP Server / LAN. Nevertheless, my clients receiving domain mydomain.com.

I observe this with dhcpdump, so this is precise.

Where else DHCP server can take this name? This name is not random, but old name I am trying to change.

[dimskraft]

In logs I see message

dhcpd Config file: /etc/dhcpd.conf

but this file doesn't exist

[johnpoz]

where are you seeing that exactly? the dhcpd.conf would be in

/var/dhcpd/etc