SHOREWALL6-BLACKLIS(5) | Configuration Files | SHOREWALL6-BLACKLIS(5) |
NAME¶
blacklist - shorewall6 Blacklist fileSYNOPSIS¶
/etc/shorewall6/blacklist
DESCRIPTION¶
The blacklist file is used to perform static blacklisting by source address (IP or MAC), or by application. The use of this file is deprecated in favor of shorewall6-blrules[1](5), and beginning with Shorewall 4.5.7, the blacklist file is no longer installed. Existing blacklist files can be converted to a corresponding blrules file using the shorewall6 update -b command. 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). ADDRESS/SUBNET - {-|~mac-address|ip-address|address-range|+ipset}Host address, network address, MAC address, IP address
range (if your kernel and ip6tables contain iprange match support) or ipset
name prefaced by "+" (if your kernel supports ipset match).
Exclusion ( shorewall6-exclusion[2](5)) is supported.
MAC addresses must be prefixed with "~" and use "-" as a
separator.
Example: ~00-A0-C9-15-39-78
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.
PROTOCOL (proto) - {-|protocol-number|protocol-name}
Optional - if specified, must be a protocol number or a
protocol name from protocols(5).
PORTS (port) -
{-|port-name-or-number[,port-name-or-number]...}
May only be specified if the protocol is TCP (6), UDP
(17), DCCP (33), SCTP (132) or UDPLITE (136). A comma-separated list of
destination port numbers or service names from services(5).
OPTIONS - {-|{dst|src|whitelist|audit}[,...]}
Optional - added in 4.4.12. If specified, indicates
whether traffic from ADDRESS/SUBNET ( src) or traffic to
ADDRESS/SUBNET ( dst) should be blacklisted. The default is src.
If the ADDRESS/SUBNET column is empty, then this column has no effect on the
generated rule.
Note
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 arriving on
an interface that has the 'blacklist' option set. So to block traffic from
your local network to an internet host, you had to specify blacklist on
your internal interface in shorewall6-interfaces[3] (5).
Note
Beginning with Shorewall 4.4.13, entries are applied based on the
blacklist setting in shorewall6-zones[4](5):
In Shorewall 4.4.20, the whitelist option was added. When
whitelist is specified, packets/connections that match the entry are
not matched against the remaining entries in the file.
The audit option was also added in 4.4.20 and causes packets matching the
entry to be audited. The audit option may not be specified in whitelist
entries and require AUDIT_TARGET support in the kernel and ip6tables.
When a packet arrives on an interface that has the blacklist option
specified in shorewall6-interfaces[3](5), its source IP address and MAC
address is checked against this file and disposed of according to the
BLACKLIST_DISPOSITION and BLACKLIST_LOGLEVEL variables in
shorewall6.conf[5](5). If PROTOCOL or PROTOCOL and
PORTS are supplied, only packets matching the protocol (and one of the
ports if PORTS supplied) are blocked.
1.'blacklist' in the OPTIONS or IN_OPTIONS column.
Traffic from this zone is passed against the entries in this file that have
the src option (specified or defaulted).
2.'blacklist' in the OPTIONS or OUT_OPTIONS column.
Traffic to this zone is passed against the entries in this file that have the
dst option.
EXAMPLE¶
Example 1:To block DNS queries from address
fe80::2a0:ccff:fedb:31c4:
Example 2:
#ADDRESS/SUBNET PROTOCOL PORT fe80::2a0:ccff:fedb:31c4/ udp 53
To block some of the nuisance applications:
#ADDRESS/SUBNET PROTOCOL PORT - udp 1024:1033,1434 - tcp 57,1433,1434,2401,2745,3127,3306,3410,4899,5554,6101,8081,9898
FILES¶
/etc/shorewall6/blacklistSEE ALSO¶
http://www.shorewall.net/blacklisting_support.htm[6] http://www.shorewall.net/configuration_file_basics.htm#Pairs[7] shorewall6(8), shorewall6-accounting(5), shorewall6-actions(5), shorewall6-hosts(5), shorewall6-interfaces(5), shorewall6-maclist(5), shorewall6-netmap(5),shorewall6-params(5), shorewall6-policy(5), shorewall6-providers(5), shorewall6-rtrules(5), shorewall6-routestopped(5), shorewall6-rules(5), shorewall6.conf(5), shorewall6-secmarks(5), shorewall6-tcclasses(5), shorewall6-tcdevices(5), shorewall6-mangle(5), shorewall6-tos(5), shorewall6-tunnels(5), shorewall6-zones(5)NOTES¶
- 1.
- shorewall6-blrules
- 2.
- shorewall6-exclusion
- 3.
- shorewall6-interfaces
- 4.
- shorewall6-zones
- 5.
- shorewall6.conf
10/19/2014 | Configuration Files |