PowerDNS: Rec Control

make rec_control be more user friendly
make wipe-cache accept non-dot terminated domain names
make wipe-cache return count of wiped ('wopen'?) domains
document best current practice when wiping (wipe more than www.domain, wipe domain as well)

REC_CONTROL(1)
==============
NAME
—-
rec_control – control pdns_recursor

SYNOPSIS
——–
'rec_control' [–help] [–socket-dir] [–socket-pid] command ..

DESCRIPTION
———–
rec_control(1) allows the operator to control a running instance of the pdns_recursor.

The commands that can be passed to the recursor are described on http://doc.powerdns.com/rec-control.html

EXAMPLES
——–

To stop the recursor by hand, run:

    # rec_control quit

To dump the cache to disk, execute:

    # rec_control dump-cache /tmp/the-cache

OPTIONS
——-

–help::
    provide this helpful message

–socket-dir::
    Where the controlsocket will live

–socket-pid::
    When running in SMP mode, pid of pdns_recursor to control

COMMANDS
——–
dump-cache filename::
    Dumps the entire cache to the filename mentioned. This file should not exist already, PowerDNS will refuse to overwrite it. While dumping, the recursor will not answer questions.

get statistic::
    Retrieve a statistic. For items that can be queried, see http://doc.powerdns.com/recursor-stats.html

ping::
    Check if server is alive.

quit::
    Request shutdown of the recursor

top-remotes::
    Shows the top-20 most active remote hosts. Statistics are over the last 'remotes-ringbuffer-entries' queries, which defaults to 0.

wipe-cache domain0 [domain1]::
    Wipe entries from the cache. This is useful if, for example, an important server has a new IP address, but the TTL has not yet expired. Multiple domain names can be passed. Note that you must terminate a domain with a .!  So to wipe powerdns.org, issue    'rec_control wipe-cache powerdns.org.'. Versions beyond 3.1 don't need the trailing dot. Consider not only wiping 'www.domain.com.' but also 'domain.com.', as the cached nameservers or target of CNAME may continue to be undesired.

BUGS
—-
None known. File new ones at http://wiki.powerdns.com.

Src: http://wiki.powerdns.com/trac/browser/trunk/pdns/pdns/docs/rec_control.1.txt?rev=818