Programmer Group

1, Introduction to year    year is the MYSQL SQL statement audit platform. Provide query audit, SQL audit and other functions. The edition of year 1. X needs the function of SQL audit and rollback provided by inception. Since year 2.0 does not need to rely on perception, it has implemented SQL audit / rollback function   th ...

Yesterday's examination questions Create a role (only all the operation permissions of pods under cka namespace) and rolebinding (use serviceaccount to authenticate authentication), use the corresponding serviceaccount as the authentication information to operate the pod under cka namespace and the pods under default namespace. – the nam ...

Golang provides the object pool Pool in sync.Usually everyone calls this an object pool.It is well known that go is automatically garbage collected, which greatly reduces the programming burden.But gc is a double-edged sword.For example, they are friendly to beginning programmers, but later on, as the p ...

10_ file Text files: Based on character encoding, such as ASCII, UNICODE Binary file open FILE *fopen(filename, mode); // The system itself defines a structure called FILE // Mode indicates the mode of opening the file /* mode The value of r rb Open as read-only w wb Open as write a ab Open as append, add content at the ...

Go back to: Linux series Shell series Awk series Process control statement Note: statement blocks in awk have no scope and are global variables. if (condition) statement [ else statement ] expr1?expr2:expr3 while (condition) statement do statement while (condition) for (expr1; expr2; expr3) statement for (var in array) statement break co ...

Go back to: Linux series Shell series Awk series Process control statement Note: statement blocks in awk have no scope and are global variables. if (condition) statement [ else statement ] expr1?expr2:expr3 while (condition) statement do statement while (condition) for (expr1; expr2; expr3) statement for (var in array) statement break co ...

Note: part of the code of the article case will be misaligned. Please pay attention to the format alignment when using!! Chapter 3 yaml syntax and playbook writing Ansible's playbook adopts yaml syntax, so before learning ansible playbook, it is necessary to understand and master the grammar format of yaml. Only by practicing and mastering the ...

Premise: pc host, MBR architecture Step 1: post (power on system test) power on self test. There is a rom chip (CMOS) on the main board of the pc. after power up, the cpu looks for the raw, reads the instructions inside, and checks whether there is memory, hard disk, display device, etc. on the machine. There is a bios (basic input output sys ...

Catalog chmod chown chgrp umask chmod explain Command name: chmod change the permissions mode of a file Command path / bin/chmod Execute permission: all users Function Description: change file or directory permissions grammar chmod [{ugoa}{+-=}{rwx}] [File or directory] chmod [mode=421] [File or directory] -R Recursive modification ...

1, About Harbor 1. Introduction to harbor Harbor is an enterprise level Registry server for storing and distributing Docker images. It extends open source Docker Distribution by adding some necessary enterprise features, such as security, identity and management. As an enterprise private Registry server, harbor provides better performance and ...