OS Manuals

/usr/bin/rblcheck

DNS Resolver Library

From udns 0.7-r0 (os), captured 2026-11-05 by running rblcheck -help (exit 0). permalink

rblcheck: udns-rblcheck 0.7 (udns library version 0.7).
Usage is: rblcheck [options] address..
Where options are:
 -h - print this help and exit
 -s service - add the service (DNSBL zone) to the serice list
 -S service-file - add the DNSBL zone(s) read from the given file
 -c - clear service list
 -v - increase verbosity level (more -vs => more verbose)
 -q - decrease verbosity level (opposite of -v)
 -t - obtain and print TXT records if any
 -m - stop checking after first address match in any list
 -n ipaddr - use the given nameserver instead of the default
(if no -s or -S option is given, use $RBLCHECK_ZONES, ~/.rblcheckrc
or /etc/rblcheckrc in that order)
Options (9)
OptionDescriptionSource
-s zoneadd the given zone DNSBL name to the list of active zones.man
-S zone-fileadd list of zones from the named zone-file to the list of active zones (the file specifies one zone as the first word on a line, empty lines and lines starting with #' character are ignored).man
-creset active zone list.man
-vbe more verbose, produce more detailed output.man
-qthe opposite for -v -- produce less detailed output.man
-tobtain text for listed addresses.man
-n nsaddrUse the given nameserver (given as IPv4 or IPv6 address) instead of the default.man
-mstop after first hit, ie after the first address which is found to be listed.man
-hprint short help and exit.man

Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.