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 127.0.0.1
at 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 |