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The operation and maintenance department often teases itself with rm -rf /, but in fact, rm -rf / does not work under the current security mechanism. You see: [root@zmedu-17 ~]# rm -rf / rm: stay"/" Recursive operations are dangerous rm: use --no-preserve-root Option skip safe mode We need to add the following -- no preserve root to skip saf ...

Equipment to be prepared:   Raspberry pie 4B (here I choose the 8G memory version) Keyboard and mouse (there must be a keyboard, and the mouse can be used after Ubuntu Mate is installed) Monitor (HDMI screen is recommended here, I use https://www.waveshare.net/wiki/7inch_HDMI_LCD_(C) (screen below) 16G/32G SD card (32G is recommended because ...

1) Experimental platform: punctual atom alpha Linux development board 2) Platform purchase address: https://item.taobao.com/item.htm?id=603672744434 2) Full set of experimental source code + manual + video download address: http://www.openedv.com/thread-300792-1-1.html 3) Students interested in punctual atomic Linux can add group discussion: 93 ...

1, Create socket socket is a readable, writable, controllable and closable file descriptor (integer number) // Function prototype int socket(int domain, int type, int protocol) //Parameter interpretation domain: Specifies the protocol used by the system. Can be TCP/IP Protocol family, or UNIX Protocol family. The corresponding values are ...

acme.sh overviewAn ACME protocol client written purely in Shell (Unix shell) language.Complete ACME protocol implementation. Supports ACME v1 and ACME v2 wildcard certificatesSimple, powerful and easy to use. You only need 3 minutes to learn it.Let's Encrypt free certificate client is the simplest shell script.It is written purely in Shell and ...

1. Preface In the daily operation and maintenance work, partitioning the Linux system disk is a very common operation. Generally speaking, whether you use the fdisk tool or the parted tool, the general steps are the same. You need to mount the disk first, then partition the target disk and format it into the specified file system type, a ...

preface Yesterday all sorts of strange things were as like as two peas in the nacos tutorial. They found that the nacos tutorial was basically a bit like the same. They were copied and copied, so that you could configure a lot of things. The introduction of dependencies was also a great surprise. Even the official tutorials of the librar ...

1, Configuration file https://prometheus.io/docs/prometheus/latest/configuration/recording_rules/#configuring-rules To specify the configuration file to load, use – config File flag. The file is in YAML Format, defined by the scheme described below. Parentheses indicate that the parameter is optional. For non list parameters, this v ...

This series of articles is to share the author's practical operation records when he first came into contact with and learned Linux. The content mainly includes some theoretical and conceptual knowledge of Linux, simple installation and deployment of Web programs and mysql database. I hope it can help some beginners and avoid detours. be car ...

effect As shown in the figure: technological process User login - > function selection - > corresponding function thinking For the use of the whole software, the acquisition of touch screen coordinate points is indispensable, so we open a separate thread to obtain touch screen coordinate points and run from beginning to end ...