The "LineInCode"-Solution described here works - but the sound is terrible over wifi. The VLC-Solution provided above works too - but it need a lot of clicking. I combined both in a batch-file which would start VLC as a streamer on my PC and mpg123 as a "listner" on the PI. It works like a charm for me. You need to have Plik in the same folder (we use it as ssh-client). I use this script from today on to listen to mp3s on my laptop, while the soundoutput is the pi:

            REM This is fischteich's start_sound.bat v 0.3
            @echo off

            set vlc="C:\Program Files (x86)\VideoLAN\VLC\vlc.exe"
            set ssh-login=YOURLOGIN
            set ssh-pw=YOURPW
            set this-machine-ip=192.168.XXX.XXX
            set pi-ip=192.168.XXX.XXX
            set use-port=5001

            set start-string= --sout-keep --sout=#transcode{vcodec=none,acodec=mp3,ab=192,channels=2,samplerate=44100}:http{mux=mp3,dst=:%use-port%/}

            REM Start VLC ready for files to play
            @start "vlc" %vlc% %start-string%
            REM Start playback via mpg123 on the Pi!
            plink %pi-ip% -l %ssh-login% -pw %ssh-pw% "mpg123 http://%this-machine-ip%:%use-port%"


Using Pi to stream all audio output from my pc to my stereo
For analytics purposes, I'm looking at large sets of IP addresses in server log files. I'm trying to perform reverse-DNS lookups to understand where traffic is coming from - e.g. what percentage of IPs resolve to corporations, schools, government, international etc.

Despite a bunch of optimizations, individually reverse-DNS'ing every IP address still appears to be fairly expensive though. So -

is there any way to obtain an entire range of IPs from a reverse-DNS?

If yes, this could greatly reduce the number of actual reverse-DNS lookups.

Example (numbers slightly obfuscated): 


Log file contains a request from an IP 128.151.162.17
Reverse DNS resolves to 11.142.152.128.in-addr.arpa 21599 IN PTR alamo.ceas.rochester.edu
(So this is a visitor from Rochester University, rochester.edu)
Now, would it be safe to assume that all at least all IPs from 128.151.162.* will also resolve to rochester.edu?
What about 128.151.*.*? Is there a way to get the exact IP range?

