[CLUE-Tech] October talk.

[Dave Price]

On Tue, Sep 24, 2002 at 02:46:31PM -0600, Jed S. Baer wrote:
> On Tue, 24 Sep 2002 14:03:00 -0600
> David Anselmi <anselmi at americanisp.net> wrote:
> 
> > I've (finally) updated the web site for the October meeting.
> 
> Way to go, Dave! ;-)
> 
> > talking about TCP/IP, and maybe doing a follow-up talk in November.  I 
> > want to teach people how networking works so they don't feel like 
> > networking problems are something mysterious.
> > 
> > At this point, I'm thinking I'll talk about how the various packets 
> > (TCP, IP, ethernet) are put together, what that means to you, and what 
> > commands are used to configure things.  A follow-up talk might cover 
> > application level protocols and troubleshooting.
> 
> As long as you don't start out with:
> 
> If a packet hits a pocket on a socket on a port ...
> 
> Actually, I'm not sure that packet-level stuff is all that important.
> Maybe I'm wrong. The thing I always find myself having to look up all the
> time is stuff like using a netmask. So many utilities these days, like
> ntp, use masks as part of their configuration. iptables too. I just
> recently was looking at something that used a notation like
> 12.33.56.102/64 to specify, I don't remember if that was meant as a
> subnet, or some other type of masking, or what. Half the time, the way
> some of those folks write their docs, it comes out in my head as backwards
> of what I think their intent must be, in whatever context it is. In some
> ways, DECNet was easier. I think an initial talk on the practical aspects
> would be the best place to start, with a followup going into more gory
> details. IOW, being able to read my routing table should be possible
> without knowing the details of packets, and is more useful.

For that notation, see: http://kinaole.org/subnet.html

aloha,
dave