Date: Tue, 15 Oct 2019 19:53:04 -0700 From: Navdeep Parhar <nparhar@gmail.com> To: vm finance <vm.finance2@gmail.com> Cc: Kevin Oberman <rkoberman@gmail.com>, freebsd-net <freebsd-net@freebsd.org> Subject: Re: logs/traces Message-ID: <20191016025233.GA14421@x270> In-Reply-To: <CAKy-8=j_pTAenauicBp%2BiZf4EVko6ww=Ge5cPv6mxrVMOg0quQ@mail.gmail.com> References: <CAKy-8=gy4mAS0HedGxGRCscVWL1V%2BEtvtA2PR8oFbNPOTSzwmQ@mail.gmail.com> <CAN6yY1vAtA2_zDCapRpLQPYuxOyCvokPFE%2B=wZP9TDscRoN0-Q@mail.gmail.com> <CAKy-8=j_pTAenauicBp%2BiZf4EVko6ww=Ge5cPv6mxrVMOg0quQ@mail.gmail.com>
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Have you looked at siftr(4) or dtrace_tcp(4)? Regards, Navdeep On Tue, Oct 15, 2019 at 07:15:27PM -0700, vm finance wrote: > Hi Kevin, > > I am looking to enable traces/log messages (like syslog or > /var/log/messages) inside the codebase... any pointers for tcp/ip. > tcpdump shows what is going on wire - but I would like to trace code > internals...printk.. > > Thanks a lot! > > On Tue, Oct 15, 2019 at 6:11 PM Kevin Oberman <rkoberman@gmail.com> wrote: > > > Use tcpdump(1) and/or net/wireshark(5). See man tcpdump and pcap-filter > > for usage details. wireshark can analyze files collected by tcpdump and > > dissect the packets. It can also do packet capture, itself. > > -- > > Kevin Oberman, Part time kid herder and retired Network Engineer > > E-mail: rkoberman@gmail.com > > PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683 > > > > > > On Tue, Oct 15, 2019 at 3:17 AM vm finance <vm.finance2@gmail.com> wrote: > > > >> Hi, > >> > >> Could someone please guide me on how to turn on tracing/log? > >> > >> I would like to follow/track how packets go in/out of TCP code block... > >> Please let me know what knobs are available to achieve this. > >> > >> Thanks for any pointers. > >> _______________________________________________ > >> freebsd-net@freebsd.org mailing list > >> https://lists.freebsd.org/mailman/listinfo/freebsd-net > >> To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" > >> > > > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
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