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摘要：As a non-Java developer, I am quit stuck in Java environment setting because I am not familiar with Java. I write it down as following, I think it is 阅读全文

摘要：http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-key-pairs.html#replacing-lost-key-pair 阅读全文

摘要：After building a Dockerfile, I run it. I figure out that there is something wrong with local time. So I start to install ntpdate but it doesn't work a 阅读全文