Problema di riavvio apache2

Quando riavvio apache con sudo service apache2 restart, mi stampa a video questo messaggio:

[....] Restarting web server: apache2[Tue Apr 19 16:04:20 2016] [warn] The Alias directive in /etc/phpmyadmin/apache.conf at line 3 will probably never match because it overlaps an earlier Alias.
apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName
[Tue Apr 19 16:04:20 2016] [warn] The Alias directive in /etc/phpmyadmin/apache.conf at line 3 will probably never match because it overlaps an earlier Alias.
apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName
(98)Address already in use: make_sock: could not bind to address 0.0.0.0:443
no listening sockets available, shutting down
Unable to open logs
Action 'start' failed.
The Apache error log may have more information.
 failed!

Dando il comando sudo netstat -lnp, mi stampa a video questo:

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN      2607/mysqld     
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      10407/sshd      
udp        0      0 0.0.0.0:68              0.0.0.0:*                           10362/dhclient  
udp        0      0 192.168.1.96:123        0.0.0.0:*                           2158/ntpd       
udp        0      0 127.0.0.1:123           0.0.0.0:*                           2158/ntpd       
udp        0      0 0.0.0.0:123             0.0.0.0:*                           2158/ntpd       
udp        0      0 0.0.0.0:31481           0.0.0.0:*                           10362/dhclient  
Active UNIX domain sockets (only servers)
Proto RefCnt Flags       Type       State         I-Node   PID/Program name    Path
unix  2      [ ACC ]     STREAM     LISTENING     3403     2607/mysqld         /var/run/mysqld/mysqld.sock
unix  2      [ ACC ]     STREAM     LISTENING     2739     2088/dbus-daemon    /var/run/dbus/system_bus_socket
unix  2      [ ACC ]     SEQPACKET  LISTENING     508      156/udevd           /run/udev/control

Che dovrei fare?