forked from extern/shorewall_code
48719a6621
git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@182 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
174 lines
6.8 KiB
Plaintext
174 lines
6.8 KiB
Plaintext
#
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# Shorewall version 1.3 - Rules File
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#
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# /etc/shorewall/rules
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#
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# Rules in this file govern connection establishment. Requests and
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# responses are automatically allowed using connection tracking.
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#
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# In most places where an IP address or subnet is allowed, you
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# can preceed the address/subnet with "!" (e.g., !192.168.1.0/24) to
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# indicate that the rule matches all addresses except the address/subnet
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# given. Notice that no white space is permitted between "!" and the
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# address/subnet.
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#
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# Columns are:
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#
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#
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# ACTION ACCEPT, DROP, REJECT, DNAT or REDIRECT
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#
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# ACCEPT -- allow the connection request
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# DROP -- ignore the request
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# REJECT -- disallow the request and return an
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# icmp-unreachable or an RST packet.
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# DNAT -- Forward the request to another
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# system (and optionally another
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# port).
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# REDIRECT -- Redirect the request to a local
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# port on the firewall.
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#
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# May optionally be followed by ":" and a syslog log
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# level (e.g, REJECT:info). This causes the packet to be
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# logged at the specified level.
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#
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# SOURCE Source hosts to which the rule applies. May be a zone
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# defined in /etc/shorewall/zones or $FW to indicate the
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# firewall itself. If the ACTION is DNAT or REDIRECT,
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# sub-zones of the specified zone may be excluded from
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# the rule by following the zone name with "!' and a
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# comma-separated list of sub-zone names.
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#
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# Clients may be further restricted to a list of subnets
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# and/or hosts by appending ":" and a comma-separated
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# list of subnets and/or hosts. Hosts may be specified
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# by IP or MAC address; mac addresses must begin with
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# "~" and must use "-" as a separator.
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#
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# dmz:192.168.2.2 Host 192.168.2.2 in the DMZ
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#
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# net:155.186.235.0/24 Subnet 155.186.235.0/24 on the
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# Internet
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#
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# loc:192.168.1.1,192.168.1.2
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# Hosts 192.168.1.1 and
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# 192.168.1.2 in the local zone.
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# loc:~00-A0-C9-15-39-78 Host in the local zone with
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# MAC address 00:A0:C9:15:39:78.
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#
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# Alternatively, clients may be specified by interface
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# by appending ":" followed by the interface name. For
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# example, loc:eth1 specifies a client that
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# communicates with the firewall system through eth1.
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#
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# DEST Location of Server. May be a zone defined in
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# /etc/shorewall/zones or $FW to indicate the firewall
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# itself.
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#
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# The server may be further restricted to a particular
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# subnet, host or interface by appending ":" and the
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# subnet, host or interface. See above.
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#
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# The port that the server is listening on may be
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# included and separated from the server's IP address by
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# ":". If omitted, the firewall will not modifiy the
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# destination port. A destination port may only be
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# included if the ACTION is DNAT or REDIRECT.
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#
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# Example: loc:192.168.1.3:3128 specifies a local
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# server at IP address 192.168.1.3 and listening on port
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# 3128. The port number MUST be specified as an integer
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# and not as a name from /etc/services.
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#
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# if the ACTION is REDIRECT, this column needs only to
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# contain the port number on the firewall that the
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# request should be redirected to.
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#
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# PROTO Protocol - Must be "tcp", "udp", "icmp", a number,
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# "all" or "related". If "related", the remainder of the
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# entry must be omitted and connection requests that are
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# related to existing requests will be accepted.
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#
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# DEST PORT(S) Destination Ports. A comma-separated list of Port
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# names (from /etc/services), port numbers or port
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# ranges; if the protocol is "icmp", this column is
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# interpreted as the destination icmp-type(s).
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#
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# A port range is expressed as <low port>:<high port>.
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#
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# This column is ignored if PROTOCOL = all but must be
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# entered if any of the following ields are supplied.
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# In that case, it is suggested that this field contain
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# "-"
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#
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# If MULTIPORT=Yes in /etc/shorewall/shorewall.conf, then
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# only a single Netfilter rule will be generated if in
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# this list and the CLIENT PORT(S) list below:
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# 1. There are 15 or less ports listed.
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# 2. No port ranges are included.
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# Otherwise, a separate rule will be generated for each
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# port.
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#
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# CLIENT PORT(S) (Optional) Port(s) used by the client. If omitted,
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# any source port is acceptable. Specified as a comma-
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# separated list of port names, port numbers or port
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# ranges.
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#
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# If you don't want to restrict client ports but need to
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# specify an ADDRESS in the next column, then place "-"
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# in this column.
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#
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# If MULTIPORT=Yes in /etc/shorewall/shorewall.conf, then
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# only a single Netfilter rule will be generated if in
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# this list and the DEST PORT(S) list above:
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# 1. There are 15 or less ports listed.
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# 2. No port ranges are included.
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# Otherwise, a separate rule will be generated for each
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# port.
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#
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# ORIGINAL DEST (0ptional -- only allowed if ACTION is DNAT or
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# REDIRECT) If included and different from the IP
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# address given in the SERVER column, this is an address
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# on some interface on the firewall and connections to
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# that address will be forwarded to the IP and port
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# specified in the DEST column.
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#
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# The address may optionally be followed by
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# a colon (":") and a second IP address. This causes
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# Shorewall to use the second IP address as the source
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# address in forwarded packets. See the Shorewall
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# documentation for restrictions concerning this feature.
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# If no source IP address is given, the original source
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# address is not altered.
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#
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# Example: Accept SMTP requests from the DMZ to the internet
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#
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# #ACTION SOURCE DEST PROTO DEST SOURCE ORIGINAL
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# # PORT PORT(S) DEST
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# ACCEPT dmz net tcp smtp
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#
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# Example: Forward all ssh and http connection requests from the internet
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# to local system 192.168.1.3
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#
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# #ACTION SOURCE DEST PROTO DEST SOURCE ORIGINAL
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# # PORT PORT(S) DEST
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# DNAT net loc:192.168.1.3 tcp ssh,http
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#
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# Example: Redirect all locally-originating www connection requests to
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# port 3128 on the firewall (Squid running on the firewall
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# system) except when the destination address is 192.168.2.2
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#
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# #ACTION SOURCE DEST PROTO DEST SOURCE ORIGINAL
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# # PORT PORT(S) DEST
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# REDIRECT loc 3128 tcp www - !192.168.2.2
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#
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# Example: All http requests from the internet to address
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# 130.252.100.69 are to be forwarded to 192.168.1.3
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#
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# #ACTION SOURCE DEST PROTO DEST SOURCE ORIGINAL
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# # PORT PORT(S) DEST
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# DNAT net loc:192.168.1.3 tcp 80 - 130.252.100.69
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##############################################################################
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#ACTION SOURCE DEST PROTO DEST SOURCE ORIGINAL
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# PORT PORT(S) DEST
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#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE
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