rest-assured/src/main/java/io/restassured/specification/ProxySpecification.java
public static ProxySpecification host(String host) {
        return new ProxySpecification(host, DEFAULT_PORT, DEFAULT_SCHEME, DEFAULT_USERNAME, DEFAULT_PASSWORD);
    }
public static ProxySpecification host(String host) {
        return new ProxySpecification(host, DEFAULT_PORT, DEFAULT_SCHEME, DEFAULT_USERNAME, DEFAULT_PASSWORD);
    }
Specify the hostname for of the proxy. Will use port {@value #DEFAULT_PORT} and scheme {@value #DEFAULT_SCHEME}.

@param host The hostname
@return A new ProxySpecification instance