Ubuntu +Apache doesn't work on port 80 -

i have problems apache (os ubuntu). reasons apache doesn't work on port 80.

for settings: etc/apache2/ports.conf

listen 80  <ifmodule ssl_module>     listen 443 </ifmodule>  <ifmodule mod_gnutls.c>     listen 443 </ifmodule>

etc/apache2/000-default.conf

<virtualhost *:80>     serveradmin webmaster@localhost     documentroot /var/www/html </virtualhost>

netstat. try connect "my_server_ip" or "my_server_ip:80" browser "connection closed"

if change port 8080(for example) try connect "my_server_ip:8080" it's work fine , see default apache page.

settings: etc/apache2/ports.conf

listen 8080  <ifmodule ssl_module>     listen 443 </ifmodule>  <ifmodule mod_gnutls.c>     listen 443 </ifmodule>

etc/apache2/000-default.conf

<virtualhost *:8080>         serveradmin webmaster@localhost         documentroot /var/www/html     </virtualhost>

Maxid