public ReactorPeerFactoryBean<IN, OUT> setHost(String host) {
		Assert.notNull(host, "Host cannot be null.");
		this.host = host;
		return this;
	}
Set the host to which this server will bind.

@param host the host to bind to (defaults to {@code 0.0.0.0})
@return {@literal this}
extensions/spring-xd-extension-reactor/src/main/java/org/springframework/xd/integration/reactor/net/ReactorPeerFactoryBean.java