Date: Fri, 14 Apr 2000 14:30:03 -0700 (PDT) From: Brian Nelson <brian@pocketscience.com> To: freebsd-bugs@FreeBSD.org Subject: Re: bin/17963: NATD appears to memory leak when a connection fails from the internal network to the external network. Message-ID: <200004142130.OAA83766@freefall.freebsd.org>
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The following reply was made to PR bin/17963; it has been noted by GNATS. From: Brian Nelson <brian@pocketscience.com> To: Ruslan Ermilov <ru@FreeBSD.org> Cc: brian@FreeBSD.org, cmott@scientech.com, net@FreeBSD.org, freebsd-gnats-submit@FreeBSD.org Subject: Re: bin/17963: NATD appears to memory leak when a connection fails from the internal network to the external network. Date: Fri, 14 Apr 2000 14:25:12 -0700 This seems to have worked! been running for hours, and we're still at ~600k. Thanks a lot for your help! is this going into -current or -stable any time soon? Ruslan Ermilov wrote: > > On Wed, Apr 12, 2000 at 07:18:39PM -0700, brian@pocketscience.com wrote: > > > [...] > > from an internal machine, make several network connections that get > > dropped on the remote end (not denied, but connection timeouts) > > > Please try the following patch. It is for RELENG_3 (latest) sources. > Extract patch to the currrent directory, then follow instructions: > > # mv ./p /tmp > # cd /usr/src/lib/libalias > # patch </tmp/p > # make clean all install # build/install new library > # cd /usr/src/sbin/natd > # make clean all install # build/install natd with new library > > BACKGROUND > > The problem was that the TCP link's timeout was set to TCP_EXPIRE_CONNECTED > (86400 secs) right after the first SYN from the client (or from the server > for incoming connections). With this change, this huge timeout value will > only be applied to ESTABLISHED connections, i.e. only after SYN was seen > from both client and server side. TCP links corresponding to failed TCP > connections (those which never receive neither SYN-ACK nor RST from server), > will be dropped after TCP_EXPIRE_INITIAL (300 seconds) timeout. > > Cheers, > -- > Ruslan Ermilov Sysadmin and DBA of the > ru@ucb.crimea.ua United Commercial Bank, > ru@FreeBSD.org FreeBSD committer, > +380.652.247.647 Simferopol, Ukraine > > http://www.FreeBSD.org The Power To Serve > http://www.oracle.com Enabling The Information Age > > ------------------------------------------------------------------------ > > pName: p > Type: Plain Text (text/plain) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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