ubuntu@lp304393-x:~$ dpkg -l|grep rpcbind
ii  rpcbind                          0.2.3-0.2ubuntu0.1                         
amd64        converts RPC program numbers into universal addresses
ubuntu@lp304393-x:~$ sudo netstat --inet -p -l | grep rpcbind | grep -v sunrpc
udp        0      0 *:927                   *:*                                 
13471/rpcbind   


same default behavior after upgrade:

ubuntu@lp304393-x:~$ dpkg -l|grep rpcbind
ii  rpcbind                          0.2.3-0.2ubuntu0.16.04.1                   
amd64        converts RPC program numbers into universal addresses
ubuntu@lp304393-x:~$ sudo systemctl restart rpcbind
ubuntu@lp304393-x:~$ sudo netstat --inet -p -l | grep rpcbind | grep -v sunrpc
udp        0      0 *:625                   *:*                                 
14441/rpcbind   


with parameter added, random port disabled:

ubuntu@lp304393-x:~$ cat /etc/default/rpcbind 
RPCBIND_RMTCALL_DEFAULT_DISABLED=1

ubuntu@lp304393-x:~$ sudo systemctl restart rpcbind
ubuntu@lp304393-x:~$ sudo netstat --inet -p -l | grep rpcbind | grep -v sunrpc
ubuntu@lp304393-x:~$ 


with parameter commented, default behavior restored:

ubuntu@lp304393-x:~$ cat /etc/default/rpcbind 
#RPCBIND_RMTCALL_DEFAULT_DISABLED=1

ubuntu@lp304393-x:~$ sudo systemctl restart rpcbind
ubuntu@lp304393-x:~$ sudo netstat --inet -p -l | grep rpcbind | grep -v sunrpc
udp        0      0 *:660                   *:*                                 
14476/rpcbind   


** Tags removed: verification-needed verification-needed-xenial
** Tags added: verification-done verification-done-xenial

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https://bugs.launchpad.net/bugs/304393

Title:
  rpcbind grabs ports used by other daemons such as cupsd

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