BlogHide Resteemsee92 (25)in chaincoin • 8 years agoHow to secure your CentOS7 masternode serverIf you set up your CHC masternode using Max's (@highoncoins) tutorial, you might have gotten a message like this: "Last failed login: Thu Jul 20 20:27:36 UTC 2017 from 123.183.209.136 on…