'\" t
.\"     Title: shorewall-blacklist
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
.\"      Date: 06/28/2012
.\"    Manual: [FIXME: manual]
.\"    Source: [FIXME: source]
.\"  Language: English
.\"
.TH "SHOREWALL\-BLACKLIST" "5" "06/28/2012" "[FIXME: source]" "[FIXME: manual]"
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.ie \n(.g .ds Aq \(aq
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.SH "NAME"
blacklist \- Shorewall Blacklist file
.SH "SYNOPSIS"
.HP \w'\fB/etc/shorewall/blacklist\fR\ 'u
\fB/etc/shorewall/blacklist\fR
.SH "DESCRIPTION"
.PP
The blacklist file is used to perform static blacklisting\&. You can blacklist by source address (IP or MAC), or by application\&.
.PP
The columns in the file are as follows (where the column name is followed by a different name in parentheses, the different name is used in the alternate specification syntax)\&.
.PP
\fBADDRESS/SUBNET\fR (networks) \- {\fB\-\fR|\fB~\fR\fImac\-address\fR|\fIip\-address\fR|\fIaddress\-range\fR|\fB+\fR\fIipset\fR}
.RS 4
Host address, network address, MAC address, IP address range (if your kernel and iptables contain iprange match support) or ipset name prefaced by "+" (if your kernel supports ipset match)\&. Exclusion (\m[blue]\fBshorewall\-exclusion\fR\m[]\&\s-2\u[1]\d\s+2(5)) is supported\&.
.sp
MAC addresses must be prefixed with "~" and use "\-" as a separator\&.
.sp
Example: ~00\-A0\-C9\-15\-39\-78
.sp
A dash ("\-") in this column means that any source address will match\&. This is useful if you want to blacklist a particular application using entries in the PROTOCOL and PORTS columns\&.
.RE
.PP
\fBPROTOCOL\fR (proto) \- {\fB\-\fR|[!]\fIprotocol\-number\fR|[!]\fIprotocol\-name\fR}
.RS 4
Optional \- If specified, must be a protocol number or a protocol name from protocols(5)\&.
.RE
.PP
\fBPORTS\fR \- {\fB\-\fR|[!]\fIport\-name\-or\-number\fR[,\fIport\-name\-or\-number\fR]\&.\&.\&.}
.RS 4
Optional \- may only be specified if the protocol is TCP (6) or UDP (17)\&. A comma\-separated list of destination port numbers or service names from services(5)\&.
.RE
.PP
OPTIONS \- {\-|{dst|src|whitelist|audit}[,\&.\&.\&.]}
.RS 4
Optional \- added in 4\&.4\&.12\&. If specified, indicates whether traffic
\fIfrom\fR
ADDRESS/SUBNET (\fBsrc\fR) or traffic
\fIto\fR
ADDRESS/SUBNET (\fBdst\fR) should be blacklisted\&. The default is
\fBsrc\fR\&. If the ADDRESS/SUBNET column is empty, then this column has no effect on the generated rule\&.
.if n \{\
.sp
.\}
.RS 4
.it 1 an-trap
.nr an-no-space-flag 1
.nr an-break-flag 1
.br
.ps +1
\fBNote\fR
.ps -1
.br
In Shorewall 4\&.4\&.12, the keywords from and to were used in place of src and dst respectively\&. Blacklisting was still restricted to traffic
\fIarriving\fR
on an interface that has the \*(Aqblacklist\*(Aq option set\&. So to block traffic from your local network to an internet host, you had to specify
\fBblacklist\fR
on your internal interface in
\m[blue]\fBshorewall\-interfaces\fR\m[]\&\s-2\u[2]\d\s+2
(5)\&.
.sp .5v
.RE
.if n \{\
.sp
.\}
.RS 4
.it 1 an-trap
.nr an-no-space-flag 1
.nr an-break-flag 1
.br
.ps +1
\fBNote\fR
.ps -1
.br
Beginning with Shorewall 4\&.4\&.13, entries are applied based on the
\fBblacklist\fR
setting in
\m[blue]\fBshorewall\-zones\fR\m[]\&\s-2\u[3]\d\s+2(5):
.sp
.RS 4
.ie n \{\
\h'-04' 1.\h'+01'\c
.\}
.el \{\
.sp -1
.IP "  1." 4.2
.\}
\*(Aqblacklist\*(Aq in the OPTIONS or IN_OPTIONS column\&. Traffic from this zone is passed against the entries in this file that have the
\fBsrc\fR
option (specified or defaulted)\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04' 2.\h'+01'\c
.\}
.el \{\
.sp -1
.IP "  2." 4.2
.\}
\*(Aqblacklist\*(Aq in the OPTIONS or OUT_OPTIONS column\&. Traffic to this zone is passed against the entries in this file that have the
\fBdst\fR
option\&.
.RE
.sp .5v
.RE
In Shorewall 4\&.4\&.20, the
\fBwhitelist\fR
option was added\&. When
\fBwhitelist\fR
is specified, packets/connections that match the entry are not matched against the remaining entries in the file\&.
.sp
The
\fBaudit\fR
option was also added in 4\&.4\&.20 and causes packets matching the entry to be audited\&. The
\fBaudit\fR
option may not be specified in whitelist entries and require AUDIT_TARGET support in the kernel and iptables\&.
.RE
.PP
.SH "EXAMPLE"
.PP
Example 1:
.RS 4
To block DNS queries from address 192\&.0\&.2\&.126:
.sp
.if n \{\
.RS 4
.\}
.nf
        #ADDRESS/SUBNET         PROTOCOL        PORT
        192\&.0\&.2\&.126             udp             53
.fi
.if n \{\
.RE
.\}
.RE
.PP
Example 2:
.RS 4
To block some of the nuisance applications:
.sp
.if n \{\
.RS 4
.\}
.nf
        #ADDRESS/SUBNET         PROTOCOL        PORT
        \-                       udp             1024:1033,1434
        \-                       tcp             57,1433,1434,2401,2745,3127,3306,3410,4899,5554,6101,8081,9898
.fi
.if n \{\
.RE
.\}
.RE
.SH "FILES"
.PP
/etc/shorewall/blacklist
.SH "SEE ALSO"
.PP
\m[blue]\fBhttp://shorewall\&.net/blacklisting_support\&.htm\fR\m[]
.PP
\m[blue]\fBhttp://shorewall\&.net/configuration_file_basics\&.htm#Pairs\fR\m[]
.PP
shorewall(8), shorewall\-accounting(5), shorewall\-actions(5), shorewall\-hosts(5), shorewall_interfaces(5), shorewall\-ipsets(5), shorewall\-maclist(5), shorewall\-masq(5), shorewall\-nat(5), shorewall\-netmap(5), shorewall\-params(5), shorewall\-policy(5), shorewall\-providers(5), shorewall\-proxyarp(5), shorewall\-rtrules(5), shorewall\-routestopped(5), shorewall\-rules(5), shorewall\&.conf(5), shorewall\-secmarks(5), shorewall\-tcclasses(5), shorewall\-tcdevices(5), shorewall\-tcrules(5), shorewall\-tos(5), shorewall\-tunnels(5), shorewall\-zones(5)
.SH "NOTES"
.IP " 1." 4
shorewall-exclusion
.RS 4
\%http://www.shorewall.net/manpages/shorewall-exclusion.html
.RE
.IP " 2." 4
shorewall-interfaces
.RS 4
\%http://www.shorewall.net/manpages/shorewall-interfaces.html
.RE
.IP " 3." 4
shorewall-zones
.RS 4
\%http://www.shorewall.net/manpages/shorewall-zones.html
.RE