.\" generated with Ronn/v0.7.3
.\" http://github.com/rtomayko/ronn/tree/0.7.3
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.TH "ZBLOCKLIST" "1" "August 2021" "ZMap" "zblocklist"
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.SH "NAME"
\fBzblocklist\fR \- zmap IP blocklist tool
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.SH "SYNOPSIS"
zblocklist [ \-b <blocklist> ] [ \-w <allowlist> ] [ OPTIONS\.\.\. ]
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.SH "DESCRIPTION"
\fIZBlacklist\fR is a network tool for limiting and deduplicating a list of IP addresses using a blocklist or allowlist\.
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.SH "OPTIONS"
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.SS "BASIC OPTIONS"
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.TP
\fB\-b\fR, \fB\-\-blocklist\-file=path\fR
File of subnets to exclude, in CIDR notation, one\-per line\. It is recommended you use this to exclude RFC 1918 addresses, multicast, IANA reserved space, and other IANA special\-purpose addresses\. An example blocklist file \fBblocklist\.conf\fR for this purpose\.
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.TP
\fB\-w\fR, \fB\-\-allowlist\-file=name\fR
File of subnets to include, in CIDR notation, one\-per line\. All other subnets will be excluded\.
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.TP
\fB\-l\fR, \fB\-\-log\-file=name\fR
File to log to\.
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.TP
\fB\-\-disable\-syslog\fR
Disable logging messages to syslog\.
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.TP
\fB\-v\fR, \fB\-\-verbosity\fR
Level of log detail (0\-5, default=3)
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.TP
\fB\-\-no\-duplicate\-checking\fR
Don\'t deduplicate input addresses\. Default is false\.
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.TP
\fB\-\-ignore\-blocklist\-errors\fR
Ignore invalid, malformed, or unresolvable entries in the blocklist/allowlist\. Default is false\.
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.TP
\fB\-\-ignore\-input\-errors\fR
Don\'t print invalid entries in the input\. Default is false\.
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.SS "ADDITIONAL OPTIONS"
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.TP
\fB\-h\fR, \fB\-\-help\fR
Print help and exit
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.TP
\fB\-V\fR, \fB\-\-version\fR
Print version and exit