Quick DNS perfromance measurement trick

[Jeff Kinz]

Just saw this on a DNS forum, It seems to work nicely - 
I hope every one tries it and reports their result here in the gnhlug
list :-) 

found here : 
http://lists.oarci.net/pipermail/dns-operations/2008-July/002932.html

Here is the command: 

dig +short porttest.dns-oarc.net TXT


Here are my results: 
z.y.x.w.v.u.t.s.r.q.p.o.n.m.l.k.j.i.h.g.f.e.d.c.b.a.pt.dns-oarc.net.
"209.244.7.43 is POOR: 38 queries in 1.9 seconds from 2 ports with std dev 0.94"

It appears that "good" resolvers have lots of ports. 


Anyone who wants to take a whack at explaining what this means is very
welcome! 

That IP above is not known to me - here is my /etc/resolv.conf: 

; generated by /sbin/dhclient-script
search hsd1.ma.comcast.net.
nameserver 68.87.71.226
nameserver 68.87.73.242


Jeff Kinz ( ... OR his evil twin.... ) 

-- 

"When fascism comes to America it will be wrapped in a flag and carrying a cross."
- Sinclair Lewis.

Don't you hate it when a prognosticator is right?