Switch from cloud to local server

Hello all,
im using blynk server on the cloud and i want to switch the esp8266-12 to the local server
how do i change the code to redirect from cloud to local blynk server ip?
thanks

Change:

Blynk.begin(auth, ssid, pass);

to

Blynk.begin(auth, ssid, pass, "192.168.10.229"); // enter your IP details

thank you very much costas