[olug] dynamic DNS at home

[Tim - DZ]

Angery IP scanner, in a windows tool that kinda does what you want, it polls
an IP range and tried to resolve NetBios names, it's pretty lightweight and
doesn't have to be 'installed' - you just run it.
http://www.angryziber.com/ipscan/

Otherwise nmap would get you pretty close:
nmap -sT -I -O -v -R 192.168.100.*
or
nmap -sS -sR -O -v -R 192.168.100.*  


Though I don't think either of these will quite get you exactly what you
want - which is probably some sort of DNS server.  

I think you're basically going to have to resort to fingerprinting.  

Nessus would be another option.


-t 

-----Original Message-----
From: olug-bounces at olug.org [mailto:olug-bounces at olug.org] On Behalf Of
thelarsons3 at cox.net
Sent: Tuesday, February 17, 2004 3:31 PM
To: olug at olug.org
Subject: [olug] dynamic DNS at home

Hi guys.  Here's my situation...

I have a small home LAN.  Basically it's a Linksys router handling DHCP, my
wife's WinPC, my Linux box, and a number of other "tinker" boxes that are
not always online.  These other machines usually reside in a closet or the
basement and only come out when I am putzing with one.  From time to time I
fix one up nice, give it away, and get some other semi-obsolete box to play
with.  So it's a revolving collection.

Is there some way I can automagically detect all the computers' names from
other computers on the network so I don't have to refer to them by IP when
they're online?  The Linksys doesn't do DNS, only DHCP.  None of my machines
(even the main two) are consistently up 24/7, as we'll turn them off if we
think we're going to be away for an extended period, so I don't think a DNS
server will work.  Manually updating /etc/hosts with static addresses on all
those machines would be a PITB.  

If there were a way to poll the LAN and query names from active IPs, that
would be great.  Does such a thing exist, is there another technique I
haven't thought of, or am I stuck?  If the solution requires that I leave
one machine up all the time I'll consider it, but a script I could run from
anywhere as needed would be ideal.  If there are instructions somewhere just
point me, but I don't know where to start looking.

Thanks,
Tim

-- 
Tim & Alethea

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