Lines Matching refs:to
10 This allows you to classify packets from ingress using the Netfilter
47 and is also scheduled to replace the old syslog-based ipt_LOG
65 through your machine, in order to figure out how they are related
68 This is required to do Masquerading or other kinds of Network
69 Address Translation. It can also be used to enhance packet
90 `CONNMARK' target and `connmark' match. Similar to the mark value
99 This option enables security markings to be applied to
100 connections. Typically they are copied to connections from
102 connections to packets with the same target, with the packets
112 Normally, each connection needs to have a unique system wide
113 identity. Connection tracking zones allow to have multiple
125 to be shown in procfs under net/netfilter/nf_conntrack. This
135 to get notified about changes in the connection tracking state.
144 extension. This allows you to attach timeout policies to flow
154 This allows you to store the flow start-time and to obtain
164 to connection tracking entries. It can be used with xtables connlabel
173 tracking code will be able to do state tracking on DCCP connections.
187 tracking code will be able to do state tracking on SCTP connections.
197 tracking code will be able to do state tracking on UDP-Lite
210 machine, then you may want to enable this feature. This allows the
211 connection tracking and natting code to allow the sub-channels that
253 There is a commonly-used extension to IRC called
254 Direct Client-to-Client Protocol (DCC). This enables users to send
255 files to each other, and also chat to each other without the need
258 using NAT, this extension will enable you to send files and initiate
259 chats. Note that you do NOT need this extension to get files or
272 unprivileged port and responded to with unicast messages to the
273 same port. This make them hard to firewall properly because connection
278 of "ip address show" should look similar to this:
292 unprivileged port and responded to with unicast messages to the
293 same port. This make them hard to firewall properly because connection
306 This module adds support for PPTP (Point to Point Tunnelling
310 box, you may want to enable this feature.
324 SANE is a protocol for remote access to scanners as implemented
370 fine-grain tuning. This allows you to attach specific timeout
371 policies to flows, instead of using the global timeout policy.
446 nftables is the new packet classification framework that intends to
450 (http://www.netfilter.org/projects/nftables) uses to build the
452 allows you to construct mappings between matchings and actions
462 This option enables the nf_tables set infrastructure that allows to
463 look up for elements in a set and to build one-way mappings between
482 This option adds the number generator expression used to perform
483 incremental counting and random numbers bound to a upper limit.
489 This option adds the "ct" expression that you can use to match
496 This option adds the "flow_offload" expression that you can use to
502 This option adds the "counter" expression that you can use to
511 This option adds the "connlimit" expression that you can use to
517 This option adds the "log" expression that you can use to log
523 This option adds the "limit" expression that you can use to
533 to perform NAT in the masquerade flavour.
542 to perform NAT in the redirect flavour.
550 This option adds the "nat" expression that you can use to perform
556 This option adds the "tunnel" expression that you can use to set
562 This option adds the "objref" expression that allows you to refer to
569 This is required if you intend to use the userspace queueing
575 This option adds the "quota" expression that you can use to match
583 This option adds the "reject" expression that you can use to
596 This is required if you intend to use any of existing
603 This option adds the "hash" expression that you can use to perform
616 The lookup will be delegated to the IPv4 or IPv6 FIB depending
623 This option adds an expression that you can use to extract properties
658 The SYNPROXY expression allows you to intercept TCP connections and
659 establish them using syncookies before they are passed on to the
660 server. This allows to avoid conntrack and server resource usage
689 The lookup will be delegated to the IPv4 or IPv6 FIB depending
718 This is required if you intend to use any of ip_tables,
731 Netfilter mark matching allows you to match packets based on the
733 The target allows you to create rules in the "mangle" table which alter
736 Prior to routing, the nfmark can influence the routing method and can
737 also be used by other subsystems to change their behavior.
747 Netfilter allows you to store a mark value per connection (a.k.a.
748 ctmark), similarly to the packet mark (nfmark). Using this
772 This option adds a 'AUDIT' target, which can be used to create
783 table to work around buggy DHCP clients in virtualized environments.
786 that the checksum would normally be offloaded to hardware and
788 This target can be used to fill in the checksum using iptables
797 This option adds a `CLASSIFY' target, which enables the user to set
821 to connections, and restores security markings from connections
822 to packets (if the packets are not already marked). This would
833 This options adds a `CT' target, which allows to specify initial
834 connection tracking parameters like events to be delivered and
835 the helper to be used.
844 This option adds a `DSCP' target, which allows you to manipulate
849 It also adds the "TOS" target, which allows you to create rules in
851 or the Priority field of an IPv6 packet, prior to routing.
861 targets, which enable the user to change the
862 hoplimit/time-to-live value of the IP header.
864 While it is safe to decrement the hoplimit/TTL value, the
865 modules also allow to increment and set the hoplimit value of
866 the header to arbitrary values. This is EXTREMELY DANGEROUS
877 The target allows you to create rules in the "raw" and "mangle" tables
880 by other subsystems to change their behaviour.
901 This option adds a `LED' target, which allows you to blink LEDs in
902 response to particular packets passing through your machine.
904 This can be used to turn a spare LED into a network activity LED,
905 which only flashes in response to FTP transfers, for example. Or
907 somebody connects to your machine via SSH.
909 You will need support for the "led" class to make this work.
914 Then attach the new trigger to an LED on your system:
927 This option adds a `LOG' target, which allows you to create rules in
928 any iptables table which records the packet header to the syslog.
964 This option enables the NFLOG target, which allows to LOG
976 As opposed to QUEUE, it supports 65535 different queues,
992 This option adds a `RATEEST' target, which allows to measure
993 rates similar to TC estimators. The `rateest' match can be
994 used to match on the measured rates.
1004 mapped onto the incoming interface's address, causing the packets to
1005 come to the local machine instead of passing through. This is
1017 changed to seem to come from a particular interface's address, and
1025 tristate '"TEE" - packet cloning to alternate destination'
1034 this clone be rerouted to another nexthop.
1048 This option adds a `TPROXY' target, which is somewhat similar to
1050 to redirect traffic to a transparent proxy. It does _not_ depend
1052 For it to work you will have to configure certain iptables rules
1053 and use policy routing. For more information on how to set it up
1063 The TRACE target allows you to mark packets so that the kernel
1067 If you want to compile it as a module, say M here and read
1085 This option adds a `TCPMSS' target, which allows you to alter the
1086 MSS value of TCP SYN packets, to control the maximum size for that
1087 connection (usually limiting it to your outgoing interface's MTU
1090 This is used to overcome criminally braindead ISPs or servers which
1099 Workaround: activate this option and add a rule to your firewall
1103 -j TCPMSS --clamp-mss-to-pmtu
1112 This option adds a "TCPOPTSTRIP" target, which allows you to strip
1123 This option allows you to match what routing thinks of an address,
1126 If you want to compile it as a module, say M here and read
1133 BPF matching applies a linux socket filter to each packet and
1144 Socket/process control group matching allows you to match locally
1146 belong to.
1153 This option allows you to build work-load-sharing clusters of
1168 This option adds a `comment' dummy-match, which allows you to put
1171 If you want to compile it as a module, say M here and read
1179 This option adds a `connbytes' match, which allows you to match the
1182 If you want to compile it as a module, say M here and read
1191 This match allows you to test and assign userspace-defined labels names
1192 to a connection. The kernel only stores bit values - mapping
1193 names to bits is done by userspace.
1195 Unlike connmark, more than 32 flag bits may be assigned to a
1204 This match allows you to match against the number of parallel
1205 connections to a server per client IP address (or address block).
1234 CPU matching allows you to match packets based on the CPU
1244 With this option enabled, you will be able to use the iptables
1245 `dccp' match in order to match on DCCP source/destination ports
1248 If you want to compile it as a module, say M here and read
1255 This options adds a `devgroup' match, which allows to match on the
1256 device group a network device is assigned to.
1264 This option adds a `DSCP' match, which allows you to match against
1269 It will also add a "tos" match, which allows you to match packets
1279 This option adds an "ECN" match, which allows you to match against
1288 This match extension allows you to match a range of SPIs
1300 As opposed to `limit', this match dynamically creates a hash table
1304 It enables you to express policies like `10kpps for any given
1313 Helper matching allows you to match packets in dynamic connections
1322 HL matching allows you to match packets based on the hoplimit
1323 in the IPv6 header, or the time-to-live field in the IPv4
1330 This match extension allows you to match a range of CPIs(16 bits)
1339 This option adds a "iprange" match, which allows you to match based on
1351 This option allows you to match against IPVS properties of a packet.
1360 This option adds an "L2TP" match, which allows you to match against
1369 This option allows you to match the length of a packet against a
1378 limit matching allows you to control the rate at which a rule can be
1380 target support", below) and to avoid some Denial of Service attacks.
1388 MAC matching allows you to match packets based on the source
1406 Multiport matching allows you to match TCP or UDP packets based on
1417 This option allows you to use the extended accounting through
1428 that allows to passively match the remote operating system by
1440 Socket owner matching allows you to match locally-generated packets
1442 possible to check whether a socket actually exists.
1449 Policy matching allows you to match packets based on the
1469 Packet type matching allows you to match a packet by
1481 This option adds a `quota' match, which allows to match on a
1484 If you want to compile it as a module, say M here and read
1491 This option adds a `quota2' match, which allows to match on a
1496 If you want to compile it as a module, say M here and read
1504 This option allows `quota2' to log ONCE when a quota limit
1506 It logs similarly to how ipt_ULOG would without data.
1515 This option adds a `rateest' match, which allows to match on the
1525 This option adds a `realm' match, which allows you to use the realm
1531 If you want to compile it as a module, say M here and read
1549 With this option enabled, you will be able to use the
1550 `sctp' match in order to match on SCTP source/destination ports
1553 If you want to compile it as a module, say M here and read
1567 This option adds a `socket' match, which can be used to match
1570 routing to implement full featured non-locally bound sockets.
1579 Connection state matching allows you to match packets based on their
1580 relationship to a tracked connection (ie. previous packets). This
1589 This option adds a `statistic' match, which allows you to match
1602 This option adds a `string' match, which allows you to look for
1611 This option adds a `tcpmss' match, which allows you to examine the
1621 This option adds a "time" match, which allows you to match based on
1628 If you want to compile it as a module, say M here.
1635 u32 allows you to extract quantities of up to 4 bytes from a packet,
1638 The specification of what to extract is general enough to skip over