Distcc does not find servers

I wish the title actually says a lot, but for now I can't be more specific ...

I have two Ubuntu 14.04 computers on the network (server (who needs to compile at 10.8.1.52

) and the client is at 10.8.1.42

. I installed distcc

via sudo apt-get install distcc

and use this config file on the server:

>  cat /etc/default/distcc
STARTDISTCC="true"
ALLOWEDNETS="127.0.0.1 10.8.1.0/24"
LISTENER="10.8.1.52"
NICE="10"
JOBS=""
ZEROCONF="false"

      

        
        
        
      

    

And distccd

also listens:

> sudo netstat -taupen | grep distcc
tcp        0      0 10.8.1.52:3632          0.0.0.0:*               LISTEN      122        24182229    32372/distccd 

      

        
        
        
      

    

On the client I have set DISTCC_HOSTS:

> echo $DISTCC_HOSTS 
10.8.1.52

      

        
        
        
      

    

I know you need to start the compilation process on the client ( 10.8.1.42

):

make -j100 CC=distcc

      

        
        
        
      

    

This compiles my code, but only on the client and no work is distributed (although I am collecting about a dozen .cpp files).

Can anyone give me a hint?