Apache server - domain name return "404 Not Found"

Your web server's configuration is OK. To access certain host via host name, instead of IP-address, you must have pre-configured Domain Name Service / Server (DNS). There is two solutions:

1st. If you want you can configure yours own DNS which you can use in your local network. Here you go the manual - look at Primary Master configuration.

2nd. You can buy (register) a domain name from any DNS provider. This domain will be accessible from the Internet. For example I bought one from host.bg - there has a promotion of .info at the moment.

In this case you will need a (public) static IP-adress or pre-configured Dynamic DNS (DDNS), which will connects your dinamic IP-adress with the domain name.

I've made short survey and I found that domain zbytki.cz is registred from someone - hope that is you.

When I checked with $ nslookup zbytki.cz it returns: ** server can't find zbytki.cz: NXDOMAIN.

So the domain is registered but is not configured to work with certain (static) IP address.