On Wed, Apr 08, 2020 at 10:22:55PM +0000, Evan Hunt wrote: > You didn't mention what version you're running, but IIRC, this was > added in 9.16. My mistake, 9.17. On most Unices you can specify /dev/stdin as the filename though, and that should work with any version. -- Evan Hunt -- each at isc.org Internet Systems Consortium, Inc.