This options simulates what named does with all the grease options enabled and is equivalent to setting: dig +edns=100 +zflag +ednsflags=0x40 +nsid +showbadvers
This options simulates what named does with all the grease options enabled and is equivalent to setting: dig +edns=100 +zflag +ednsflags=0x40 +nsid +showbadvers