.TH UPDATE 1 .SH NAME update \- DNS update client .SH SYNOPSIS .B update .SH DESCRIPTION .I Update edits a DNS server's database via the RFC 2136 update protocol. .PP .I Update reads instructions of the following form from standard input: .PP .RS .PD 0 .B a .I name type value .PP .B d .I name type [ .I value ] .PP .B nx .I name type .PP .B yx .I name type [ .I value ] .RE .PD .SH SOURCE .B update.c .SH SEE ALSO .IR ndb (8)