* Starting ftp server proftpd                                                   - IPv4 getaddrinfo 'HP' error: Name or service not known
 - warning: unable to determine IP address of 'HP'
 - error: no valid servers configured
 - Fatal: error processing configuration file '/etc/proftpd/proftpd.conf'
                                                                         [fail]
invoke-rc.d: initscript proftpd, action "start" failed.
dpkg: błąd przetwarzania proftpd (--configure):
 podproces post-installation script zwrócił kod błędu 1
Processing triggers for libc6 ...
ldconfig deferred processing now taking place
Wystąpiły błędy podczas przetwarzania:
 proftpd
E: Sub-process /usr/bin/dpkg returned an error code (1)