如何在C ++中修改DNS服务器？

Question

I want to change the primary dns server to some ip(eg 8.8.8.8), for all active adapters.

I tried to modify the registry, for all interfaces under HKEY_LOCAL_MACHINE\\\\SYSTEM\\\\CurrentControlSet\\\\Services\\\\Tcpip\\\\Parameters , the NameServer is changed to what i want.

However it doesn't work. ipconfig /all shows that the dns is changed, however the system seems didn't apply that. If I open the attribute of TCP/IPv4 , the dns is already changed, then i click OK , until now the dns is put into use.

Could someone tell me how to solve this? you may go some other ways, besides registry.

Update: what i did will finally apply, after about 6~8 mins.

Answer 1

只是为了有人需要，最后我使用ipconfig /registerdns刷新注册表中的dns配置。