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IDO-EVB6Y09 is a multi interface internet of things gateway device equipped with NXP imx6uliec processor, with a maximum dominant frequency of 800MHz. It has three functions: 4G industrial router, 4GDTU and industrial HMI. It supports the wireless communication mode of WIFI Bluetooth module and 4G all Netcom module, and provides multiple functi ...

This article introduces the purpose of the main commands in Dockerfile FROM Specify the basic image. The recommended method is image:tag. Specify it precisely. Note: you can use multiple FROM, which will build multiple mirrors. For example, I want busybox and nginx at the same time. I can write this FROM busybox:latest FROM nginx:latest ...

Great! Someone introduced Ansible Playbook like this! After a series of basic training and honing, it finally came to the application of relatively tall. (Nani is just starting to review his future: https://blog.csdn.net/qq_41765918/category_11512932.html) 1. What is playbook Chinese Name: script, which is an automatic processing script. P ...

Great! Someone introduced Ansible Playbook like this! After a series of basic training and honing, it finally came to the application of relatively tall. (Nani is just starting to review his future: https://blog.csdn.net/qq_41765918/category_11512932.html) 1. What is playbook Chinese Name: script, which is an automatic processing script. P ...

Linux device driver learning notes - Advanced Character driver operations - Note.4 [blocking I/O] LINUX DEVICE DRIVERS，3RD EDITIONMany of them are extracted from the Linux kernel source code 6.2 blocking I/O The driver should (by default) block the process and put it to sleep until the request can continue. This section shows how to put a p ...

catalogue 1, MySQL master-slave replication 1. Principle of master-slave replication 1. Replication types supported by MySQL 2. Working principle of MySQL master-slave replication 3.MySOL master-slave replication delay 4. Role of replication 2. Specific operation 1. Main server 192.168.68.200 2. From server 192.168.68.30 3. From serve ...

LVS Article catalogDocker builds a simple LVS - dz45693 - blog Park (cnblogs.com) Linux Virtual Server, Linux Virtual Server, mainly realizes soft load scheduling 1, Introduction 1.1 three working modes of LVS NAT - network address translation NAT (Network Address Translation) refers to Network Address Translation. The requested data p ...

catalogue Linux Mysql advanced statement 1, SQL advanced statement Import file to database  select   distinct  where   And and   Or or  in  between   like wildcard  order by    function   Aggregate function replace  concat  substr  group by  having   alias   join query   inner join ...

1. Install ansible package [root@centos8 ~]yum -y install ansible 2. Modify profile ###Purpose: to cancel the error (yes/no) that occurs every time you connect to the remote host [root@centos8 ~]#vim /etc/ssh/ssh_config #Modify the following line StrictHostKeyChecking no perhaps [root@centos8 ~]#vim /etc/ansible/ansible.cfg Uncomment the ...

Introduction to mail system The e-mail system completes the transmission of e-mail based on the e-mail protocol. The common E-mail protocols are as follows 1. Simple Mail Transfer Protocol (SMTP): it is used to send and relay e-mail, occupying 25/TCP port of the server 2. Post office protocol version 3 (POP3): used to store e-mail to the ...