$NetBSD:$
Copyright (c) 1989, 1993
The Regents of the University of California. All rights reserved.
This code is derived from software contributed to Berkeley by
Herb Hasler and Rick Macklem at The University of Guelph.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
$OpenBSD: tcpdrop.8,v 1.6 2006/01/03 14:52:17 jmc Exp $
Copyright (c) 2004 Markus Friedl <markus@openbsd.org>
Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.Dd June 23, 2007 .Dt TCPDROP 8 .Os .Sh NAME .Nm tcpdrop .Nd drop a TCP connection .Sh SYNOPSIS .Nm tcpdrop .Ar laddr .Ar lport .Ar faddr .Ar fport .Sh DESCRIPTION The .Nm command drops the TCP connection specified by the local address .Ar laddr , port .Ar lport and the foreign address .Ar faddr , port .Ar fport . Addresses and ports can be specified by name or numeric value. .Sh EXAMPLES If a connection to .Xr httpd 8 is causing congestion on a network link, one can drop the TCP session in charge: d -literal -offset indent $ fstat | grep 'httpd.*internet.*\*(Lt--' www httpd 21307 3* internet stream tcp \e 0xd1007ca8 192.168.5.41:80 \*(Lt-- 192.168.5.1:26747 .Ed
Copyright (c) 1989, 1993
The Regents of the University of California. All rights reserved.
This code is derived from software contributed to Berkeley by
Herb Hasler and Rick Macklem at The University of Guelph.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
$OpenBSD: tcpdrop.8,v 1.6 2006/01/03 14:52:17 jmc Exp $
Copyright (c) 2004 Markus Friedl <markus@openbsd.org>
Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.Dd June 23, 2007 .Dt TCPDROP 8 .Os .Sh NAME .Nm tcpdrop .Nd drop a TCP connection .Sh SYNOPSIS .Nm tcpdrop .Ar laddr .Ar lport .Ar faddr .Ar fport .Sh DESCRIPTION The .Nm command drops the TCP connection specified by the local address .Ar laddr , port .Ar lport and the foreign address .Ar faddr , port .Ar fport . Addresses and ports can be specified by name or numeric value. .Sh EXAMPLES If a connection to .Xr httpd 8 is causing congestion on a network link, one can drop the TCP session in charge: d -literal -offset indent $ fstat | grep 'httpd.*internet.*\*(Lt--' www httpd 21307 3* internet stream tcp \e 0xd1007ca8 192.168.5.41:80 \*(Lt-- 192.168.5.1:26747 .Ed
p The following command will drop the connection: d -literal -offset indent # tcpdrop 192.168.5.41 80 192.168.5.1 26747 .Ed .Sh SEE ALSO .Xr fstat 1 , .Xr netstat 1