Comment résoudre ce problème? est une Ubuntu 16,04postgresql n'a pas pu créer un socket ipv6: permission refusée
Starting PostgreSQL 9.5 database server
The PostgreSQL server failed to start. Please check the log output:
17-02-02 21:06:10 VET [23534-1] LOG: could not create IPv6 socket: Permission denied
17-02-02 21:06:10 VET [23534-2] LOG: could not create IPv4 socket: Permission denied
17-02-02 21:06:10 VET [23534-3] WARNING: could not create listen socket for "localhost"
17-02-02 21:06:10 VET [23534-4] FATAL: could not create any TCP/IP sockets
...fail!