1# double not boolean expression 2 3# empty configs are not accepted by Kea 4default-lease-time 1800; 5 6# use double not in a reductible match if 7class "reductible" { 8 match if not (not ((option host-name = "www.example.com") or 9 (option host-name = "www.example.org"))); 10} 11 12# use not with != 13class "other" { 14 match if not (option host-name != "www.example.com"); 15} 16