| RESOLVD(8) | System Manager's Manual | RESOLVD(8) |
resolvd — a daemon
to handle nameserver configuration
resolvd |
[-dv] |
resolvd handles the contents of
/etc/resolv.conf, which contains details of the
system's DNS nameservers, and is read by the resolver routines in the C
library. Nameservers are learned from various sources, incorporated in a
priority order, then user-edited information found in the pre-existing file
is re-appended.
resolvd checks whether
unwind(8) is running, and if so
places
nameserver 127.0.0.1at the top, to cause local resolution.
resolvd also monitors the routing socket
for proposals learned by dhclient(8),
dhcpleased(8),
slaacd(8), or network devices which
natively learn DNS information such as
sppp(4) or
umb(4). Proposals can also be sent using the
route(8)
nameserver command.
These proposals are added in priority order, but commented out if unwind(8) is running.
After that, resolvd appends all
user-edited lines found in the file.
resolvd also notices if the
/etc/resolv.conf file is edited, and will rewrite
the file, re-blending the various pieces of information. It will also create
/etc/resolv.conf if it does not exist or if it is
empty.
The options are as follows:
resolv.conf(5), dhclient(8), dhcpleased(8), route(8), slaacd(8), unwind(8)
The resolvd program first appeared in
OpenBSD 6.9.
| November 11, 2021 | OpenBSD-current |