OK I create a new file "10-personal.conf" whit this line:
dhcp-option=option:66,192.168.1.4
and restart dhcp from pi-hole webGUi, and still my tftp server is not detected, someone have a workinkg tftp server working in pi-hole?, and can tell me if my line is correct?.
option 66 is to say that my Tftp server is on 192.162.1.4 (not in the same ip that pi-hole run), but actually I not sure if "dhcp-option=option:66,192.168.1.4" is correct or perhaps "dhcp-option=66,192.168.1.4" is the correct syntax