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.\" ========================================================================
.\"
.IX Title "CHECK_RBL 7"
.TH CHECK_RBL 7 "2023-04-03" "perl v5.32.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
"check_rbl" \- Check SMTP black\- or white\- listing status
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
check_rbl is a Nagios plugin to check \s-1SMTP\s0 black\- or white\- listing status
.SH "VERSION"
.IX Header "VERSION"
Version 1.7.0
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
check_rbl \-H hostname \-\-server servername [options]
.SH "REQUIRED ARGUMENTS"
.IX Header "REQUIRED ARGUMENTS"
.Vb 2
\&  \-H, \-\-host=STRING    SMTP server to check. If hostname is given, it will be resolved to its IP first.
\&  \-s, \-\-server=STRING  RBL server (may be repeated)
.Ve
.SH "OPTIONS"
.IX Header "OPTIONS"
.Vb 10
\& \-?, \-\-usage
\&   Print usage information
\& \-h, \-\-help
\&   Print detailed help screen
\& \-V, \-\-version
\&   Print version information
\& \-\-extra\-opts=[section][@file]
\&   Read options from an ini file. See https://www.monitoring\-plugins.org/doc/extra\-opts.html
\&   for usage and examples.
\& \-c, \-\-critical=INTEGER
\&   Number of blacklisting servers for a critical warning
\& \-w, \-\-warning=INTEGER
\&   Number of blacklisting servers for a warning
\& \-d, \-\-debug
\&   Prints debugging information
\& \-U, \-\-url=STRING
\&   URL to check. Will be ignored if host is set.
\& \-r, \-\-retry=INTEGER
\&   Number of times to try a DNS query (default is 4) 
\& \-\-workers=INTEGER
\&   Number of parallel checks
\& \-\-whitelistings, \-\-wl
\&   Check whitelistings instead of blacklistings
\& \-\-query\-timeout=INTEGER
\&   Timeout of the RBL queries
\& \-a, \-\-append=STRING
\&   Append string at the end of the plugin output
\& \-n, \-\-nameserver=STRING
\&   Use this nameserver IP as DNS resolver (only one server is supported)
\& \-t, \-\-timeout=INTEGER
\&   Seconds before plugin times out (default: 15)
\& \-v, \-\-verbose
\&   Show details for command\-line debugging (can repeat up to 3 times)
.Ve
.SH "EXAMPLE"
.IX Header "EXAMPLE"
.Vb 1
\&  check_rbl \-t 30 \-H matteocorti.ch \-s zen.spamhaus.org \-s bl.spamcop.net
.Ve
.SH "DIAGNOSTICS"
.IX Header "DIAGNOSTICS"
You can specify multiple \-\-verbose options to increase the program
verbosity. \-\-debug can be used to display the process and internals of
the querying mechanism.
.SH "EXIT STATUS"
.IX Header "EXIT STATUS"
0 if \s-1OK, 1\s0 in case of a warning, 2 in case of a critical status and 3
in case of an unknown problem
.SH "DEPENDENCIES"
.IX Header "DEPENDENCIES"
check_updates depends on
.IP "\(bu" 4
Capture::Tiny
.IP "\(bu" 4
Data::Validate::Domain
.IP "\(bu" 4
Data::Validate::IP
.IP "\(bu" 4
Getopt::Long
.IP "\(bu" 4
IO::Select
.IP "\(bu" 4
Monitoring::Plugin
.IP "\(bu" 4
Monitoring::Plugin::Threshold
.IP "\(bu" 4
Net::DNS
.IP "\(bu" 4
Readonly
.SH "CONFIGURATION"
.IX Header "CONFIGURATION"
Options can be specified in an ini file. See https://www.monitoring\-plugins.org/doc/extra\-opts.html
.SH "INCOMPATIBILITIES"
.IX Header "INCOMPATIBILITIES"
None reported.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Nagios documentation
.SH "BUGS AND LIMITATIONS"
.IX Header "BUGS AND LIMITATIONS"
No bugs have been reported.
.PP
Please report any bugs or feature requests through the
web interface at https://github.com/matteocorti/check_rbl/issues
.SH "AUTHOR"
.IX Header "AUTHOR"
Matteo Corti <matteo@corti.li>
See \s-1AUTHORS\s0 for the complete list
.SH "LICENSE AND COPYRIGHT"
.IX Header "LICENSE AND COPYRIGHT"
Copyright (c) 2009\-2022 Matteo Corti <matteo@corti.li>
.PP
Copyright (c) 2009 \s-1ETH\s0 Zurich.
.PP
Copyright (c) 2010 Elan Ruusamae <glen@delfi.ee>.
.PP
Copyright (c) 2022 Claudio Kuenzler <ck@claudiokuenzler.com>.
.PP
This module is free software; you can redistribute it and/or modify it
under the terms of \s-1GNU\s0 general public license (gpl) version 3.
See the \s-1LICENSE\s0 file for details.
.SH "DISCLAIMER OF WARRANTY"
.IX Header "DISCLAIMER OF WARRANTY"
\&\s-1BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT
WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER
PARTIES PROVIDE THE SOFTWARE \*(L"AS IS\*(R" WITHOUT WARRANTY OF ANY KIND,
EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME
THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.\s0
.PP
\&\s-1IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE
TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
SOFTWARE\s0 (\s-1INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE\s0), \s-1EVEN IF
SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.\s0
.SH "ACKNOWLEDGMENTS"
.IX Header "ACKNOWLEDGMENTS"
Elan Ruusama\*:e for the improved parallel support and several fixes
.PP
Victor V Kudlak for parallel support
.PP
Jan Kantert for whitelistings support