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author/C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org </C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org>2007-04-16 17:55:00 +0000
committer/C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org </C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org>2007-04-16 17:55:00 +0000
commitad31f852c3454136bdbfeb7f222cb9c175f13c1c (patch)
tree67bbd2dbec77205ccfd2c950b8cbeefe65f2c67e /conntrack.8
parent13e6cab49dc2716c3e58eda12eed2fbab24be59b (diff)
downloadconntrack-tools-ad31f852c3454136bdbfeb7f222cb9c175f13c1c.tar.gz
conntrack-tools-ad31f852c3454136bdbfeb7f222cb9c175f13c1c.zip
initial import of the conntrack daemon to Netfilter SVN
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-.TH CONNTRACK 8 "Jun 23, 2005" "" ""
-
-.\" Man page written by Harald Welte <laforge@netfilter.org (Jun 2005)
-
-.SH NAME
-conntrack \- administration tool for netfilter connection tracking
-.SH SYNOPSIS
-.BR "conntrack -L [table] [-z]"
-.br
-.BR "conntrack -G [table] parameters"
-.br
-.BR "conntrack -D [table] paramaters"
-.br
-.BR "conntrack -I [table] parameters"
-.br
-.BR "conntrack -E [table] parameters"
-.br
-.BR "conntrack -F [table]"
-.SH DESCRIPTION
-.B conntrack
-is used to search, list, inspect and maintain the netfilter connection tracking
-subsystem of the Linux kernel.
-.PP
-Using
-.B conntrack
-, you can dump a list of all (or a filtered selection of) currently tracked
-connections, delete connections from the state table, and even add new ones.
-.PP
-In addition, you can also monitor connection tracking events, e.g. show an
-event message (one line) per newly established connection.
-.SH TABLES
-The connection tracking subsystem maintains two internal tables:
-.TP
-.BR "conntrack" :
-This is the default table. It contains a list of all currently tracked
-connections through the system. If you don't use connection tracking
-exemptions (NOTRACK iptables target), this means all connections that go
-through the system.
-.TP
-.BR "expect" :
-This is the table of expectations. Connection tracking expectations are the
-mechanism used to "expect" RELATED connections to existing ones. Expectations
-are generally used by "connection tracking helpers" (sometimes called
-application level gateways [ALGs]) for more complex protocols such as FTP,
-SIP, H.323.
-.SH OPTIONS
-The options recognized by
-.B conntrack
-can be divided into several different groups.
-.SS COMMANDS
-These options specify the particular operation to perform. Only one of them
-can be specified at any given time.
-.TP
-.BI "-L --dump "
-List connection tacking or expectation table
-.TP
-.BI "-G, --get "
-Search for and show a particular (matching) entry in the given table.
-.TP
-.BI "-D, --delete "
-Delete an entry from the given table.
-.TP
-.BI "-I, --create "
-Create a new entry from the given table.
-.TP
-.BI "-E, --event "
-Display a real-time event log.
-.TP
-.BI "-F, --flush "
-Flush the whole given table
-.SS PARAMETERS
-.TP
-.BI "-z, --zero "
-Atomically zero counters after reading them. This option is only valid in
-combination with the "-L, --dump" command options.
-.TP
-.BI "-e, --event-mask " "[ALL|NEW|UPDATES|DESTROY][,...]"
-Set the bitmask of events that are to be generated by the in-kernel ctnetlink
-event code. Using this parameter, you can reduce the event messages generated
-by the kernel to those types to those that you are actually interested in.
-.
-This option can only be used in conjunction with "-E, --event".
-.SS FILTER PARAMETERS
-.TP
-.BI "-s, --orig-src " IP_ADDRESS
-Match only entries whose source address in the original direction equals the one specified as argument.
-.TP
-.BI "-d, --orig-dst " IP_ADDRESS
-Match only entries whose destination address in the original direction equals the one specified as argument.
-.TP
-.BI "-r, --reply-src " IP_ADDRESS
-Match only entries whose source address in the reply direction equals the one specified as argument.
-.TP
-.BI "-q, --reply-dst " IP_ADDRESS
-Match only entries whose destination address in the reply direction equals the one specified as argument.
-.TP
-.BI "-p, --proto " "PROTO "
-Specify layer four (TCP, UDP, ...) protocol.
-.TP
-.BI "-f, --family " "PROTO"
-Specify layer three (ipv4, ipv6) protocol
-This option is only required in conjunction with "-L, --dump". If this option is not passed, the default layer 3 protocol will be IPv4.
-.TP
-.BI "-t, --timeout " "TIMEOUT"
-Specify the timeout.
-.TP
-.BI "-u, --status " "[ASSURED|SEEN_REPLY|UNSET|SRC_NAT|DST_NAT][,...]"
-Specify the conntrack status.
-.TP
-.BI "-i, --id " "ID"
-Specify the conntrack ID.
-.
-This option can only be used in conjunction with "-L, --dump" to display the conntrack IDs.
-.TP
-.BI "--tuple-src " IP_ADDRESS
-Specify the tuple source address of an expectation.
-.TP
-.BI "--tuple-dst " IP_ADDRESS
-Specify the tuple destination address of an expectation.
-.TP
-.BI "--mask-src " IP_ADDRESS
-Specify the source address mask of an expectation.
-.TP
-.BI "--mask-dst " IP_ADDRESS
-Specify the destination address mask of an expectation.
-.SH DIAGNOSTICS
-The exit code is 0 for correct function. Errors which appear to be caused by
-invalid command line parameters cause an exit code of 2. Any other errors
-cause an exit code of 1.
-.SH BUGS
-Bugs? What's this ;-)
-.SH SEE ALSO
-.BR iptables (8)
-.br
-See
-.BR "http://netfilter.org/" .
-.SH AUTHORS
-Jay Schulist, Patrick McHardy, Harald Welte and Pablo Neira wrote the kernel-level "ctnetlink" interface that is used by the conntrack tool.
-.PP
-Pablo Neira wrote the conntrack tool, Harald Welte added support for conntrack based accounting counters.
-.PP
-Man page written by Harald Welte <laforge@netfilter.org>.