1 TO DO LIST BEFORE GOING 20-inch luggage purchase Check whether nucleic acid is required before registration Check the local weather temperature and prepare clothes Download the necessary apps in Japan before travelling. Detailed travel guide, daily itinerary Ask the boss for a good day off Hotel reservation, book the hotel Vaccination Print two copies of the Singapore customs clearance document Print the vaccine certificate and submit the information to the website of the Japanese immigration government Exchange money 2 Wishlist ❤️ Hot springs

1 Introduction Recently, I finished watching “The Three-Body Problem” by Liu Cixin. It took me more than 40 hours, half a month, and I have been immersed in the world of the Three-Body Problem until today. I seldom watch science fiction books and movies, mainly because I feel that they are too unrealistic, and my imagination is too unconstrained, and I can’t keep up with the rhythm of the plot, but I really fell in love with The Three-Body Problem.

Cutting Edge I have always been interested in the issue of eating, but now there are too many fake science popularizations on the Internet. Sometimes it is said to control the intake of carbohydrates and lipids every day, and it is said that it is enough to eat normally, which once made it difficult for me to choose. I accidentally listened to Fan Deng reading and explaining the book “Diet Technique”, and I trusted Teacher Fan Deng more.

1 Background Once when changing the program package, the program package has been updated to the latest version, and the process needs to be restarted, but the restart has been unsuccessful. Checking the startup error log, it was found that the creation of the file had been unsuccessful. At that time, the thought was that the machine disk might be full. After checking the disk usage, it was found to be normal, and I was stunned instantly.

1 Background I saw a lot of friends using WeChat to play chatbots, and they can reply automatically. They look pretty decent, and I feel itchy. I also want to make a chatbot by myself. The initial idea is to be able to send “Good morning” to my girlfriend on a regular basis every day “News, push the weather of the day, introduce a Turing robot that can automatically reply to your girlfriend’s message, and try to answer as level as possible.

1. Operation and maintenance automation application scenarios OS preparation automation Batch OS deployment to hosts. PXE Configuration automation Perform batch configuration on hosts or batch configuration on host applications. Ansible, saltstack, puppet. Ansible, using the ssh protocol, works out of the box. Saltstack requires the cooperation of the agent side, and the configuration and deployment are fast. Puppet, an old-fashioned configuration automation tool, requires the cooperation of agents. Improve configuration efficiency and reduce manual involvement.