dns-mode-font-lock-keywords

dns-mode-font-lock-keywords is a variable defined in `dns-mode.el'.
Its value is

(("^$ORIGIN" 0 font-lock-keyword-face)
 ("^$INCLUDE" 0 font-lock-keyword-face)
 ("^$[a-z0-9A-Z]+" 0 font-lock-warning-face)
 ("\\(?:C[HS]\\|HS\\|IN\\)" 0 font-lock-constant-face)
 ("\\(?:A\\(?:6\\|AAA\\|FSDB\\|PL\\|TMA\\|XFR\\)?\\|C\\(?:ERT\\|NAME\\)\\|D\\(?:N\\(?:AME\\|SKEY\\)\\|S\\)\\|EID\\|G\\(?:ID\\|POS\\)\\|HINFO\\|I\\(?:SDN\\|XFR\\)\\|K\\(?:EY\\|X\\)\\|LOC\\|M\\(?:AIL[AB]\\|INFO\\|[BDFGRX]\\)\\|N\\(?:APTR\\|IMLOC\\|S\\(?:AP\\|EC\\)?\\|ULL\\|XT\\)\\|OPT\\|P\\(?:TR\\|X\\)\\|R\\(?:RSIG\\|[PT]\\)\\|S\\(?:I\\(?:G\\|NK\\)\\|OA\\|RV\\|SHFP\\)\\|T\\(?:KEY\\|SIG\\|XT\\)\\|U\\(?:I\\(?:D\\|NFO\\)\\|NSPEC\\)\\|WKS\\|X25\\)" 0 font-lock-type-face))

• This variable may be risky if used as a file-local variable.

Documentation:
Font lock keywords used to highlight text in DNS master file mode.

You can customize this variable.