1. Certified Kubernetes Administrator 2. The Exam Info 3. Certification Verification Tool You can access this link to verify the certification. Certification Verification Tool

1 Linux everything is a file In a Linux system, everything is a file. Files provides access not only to file data stored to disk, but also to network connections and hardware. The problem is that everything is a file, so how to view and manage these open files through commands. You can use the lsof command. Not only can you view the files and directories opened by the process, but you can also view the socket information such as the port the process listens to.

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.