.Dd October 7, 2021 .Dt DNSCONFIG 8 .Os .Sh NAME .Nm dnsconfig .Nd configure kernel DNS resolver list .Sh SYNOPSIS .Nm .Nm .Ar resolver ... .Nm .Fl s .Op Ar resolver ... .Nm .Fl a .Op Ar resolver ... .Nm .Fl d .Op Ar resolver ... .Sh DESCRIPTION .Nm writes the current kernel DNS resolver list, or modifies it if any resolvers are specified. .Pp The options are as follows: .Bl -tag -width "12345678" .It Fl a Append resolvers to the list. .It Fl d Delete resolvers from the list. .It Fl s Set the resolver list. This option is the default if .Nm is invoked with any resolvers. .El .Sh EXIT STATUS .Nm will exit 0 on success and non-zero otherwise. .Sh EXAMPLES Get the resolvers: .Bd -literal $ dnsconfig 192.0.2.1 .Ed .Pp Set two resolvers: .Bd -literal # dnsconfig 192.0.2.15 192.0.2.100 # dnsconfig 192.0.2.15 192.0.2.100 .Ed .Pp Set the resolvers to the empty list: .Bd -literal # dnsconfig -s # dnsconfig .Ed .Pp Append a resolver: .Bd -literal # dnsconfig 192.0.2.128 # dnsconfig -a 192.0.2.40 # dnsconfig 192.0.2.128 192.0.2.40 .Ed .Pp Delete a resolver: .Bd -literal # dnsconfig -d 192.0.2.128 # dnsconfig 192.0.2.40 .Ed .Sh SEE ALSO .Xr getdnsconfig 2 , .Xr setdnsconfig 2 .Sh HISTORY .Nm originally appeared in Sortix 1.1. .Sh CAVEATS The kernel DNS resolver list is global state. Changes made with .Nm may be overwritten by other programs.