[olug] January 2015 OLUG Meeting - Tues Jan 6th, 2015 @ 6:30 PM

[Rob Townley]

On the samba mailing list, there is something multicast and firewall
related ... Bonjour and related systems such as AVAHI or mDNS may
automatically make your domain name .local*|.lan.   Further, many tutorials
on how to set up your private network domain use .local or .localdomain or
.lan.   It is fine as long as queries for private .lan|.local|.locahost do
not make it out of your private dns infrastructure.

Would you believe about 26% of queries to the root domain name servers are
for TLDs like .local?  "10 invalid TLDs represent 10% of the total query
load at the root servers."  These are 2009 numbers.
https://www.icann.org/en/system/files/files/sac-045-en.pdf

DNS servers need to have a default list of  top level domains that are
never forwarded.  To enforce it, having the internet gateway REJECT queries
from leaving the LAN would be nice.  It makes your LAN faster as well.

On Tue, Jan 6, 2015 at 8:57 AM, Kevin <sharpestmarble at gmail.com> wrote:

> The one problem is that I have class on Tuesday nights. That's why I
> haven't been able to come since March.
> On Jan 5, 2015 6:52 PM, "Rob Townley" <rob.townley at gmail.com> wrote:
>
> How about we hack on stuff.  Get Kevins upnp problem solved as multicast
> is  hard. My experience is more along the lines of the  much simpler drbl
> multicast.  We should document it all devops style via github.  Kevin, can
> you bring your 3G router so we know what working upnp looks like.
>
> I could bring a CentOS Desktop firewall.
> It is 10 years old so not great for compiling.   Laptop with USB Ethernet
> for a second port and hostapd would be much easier.
>
> Last night I put together a list of multicast commands.  One of which is
> checking multicast forwarding:
>   sysctl -a | grep mc
>
> Doing the same with BSD or Debian would be good.
>
> Just one problem.... Does the  room really no way to have ethernet ?
> On Jan 1, 2015 6:42 AM, "Jon Larsen" <jon at jonlarsen.us> wrote:
>
> > The January OLUG Meeting is coming up on Tuesday, January 6th at 6:30 PM
> in
> > The Combine Room (formerly the AIM Training Lab), 1905 Harney Street
> Suite
> > 215 in the Exchange Building in Omaha, NE.
> >
> > Presentation: TBD
> > Presenter: TBD
> >
> > The Meeting will be streamed live on Google+ Hangouts on Air - we do
> > sometimes experience technical difficulties with our streaming setup.
> > Attending the meeting in person does work around most technical
> > difficulties. :)
> >
> >
> >
> > I'm looking for a presenter for Tuesday.  Can anyone present?  (sorry
> this
> > is late getting posted, $dayjob and $personal has been pretty busy these
> > past few months)
> >
> > Jon L.
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> >
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