Stopped working VPN in Opera, there is a solution.
DNS (eng. Domain Name System — the domain name system) is a computer distributed system for information about domains. Most often used to obtain an IP address by host name (computer or device), information about mail routing, service nodes for protocols in the domain.
Distributed database DNS is supported through hierarchy of DNS servers that communicate via a certain Protocol.
On the crest of the airwaves
It would seem that after the ratification of the 802.11 n standard in the industry of Wi-Fi should come a relative lull: specifications are approved, the certification of devices is in full swing, corporate and home markets are saturated with hundreds of wireless devices, offices in droves say goodbye to twisted pair and move on already quite Mature wireless technology, and all these technological joy, tirelessly, to provide Chinese workers. But calm, of course, did not come. The market is a grim struggle for the hearts and wallets of IT operations.