After entering the new company, the operation and maintenance engineer can understand the deployment of the system from the following items

System note template description

Enter a new company ,linux Operation and maintenance engineers can learn about the deployment of the system from the following items . Ask people + Look at the documentation + see history+ See the corresponding configuration of the system .
The following is the general content of the template ：

System name （ Delivery information 、 Services used 、 Port information ）

application	Host Name	Deploy	Intranet IP	Extranet	eip	vip or slb	domain name	port	Business address	Internet access port
A The server -1	A1	Internet	192.168.1.10	xxx.240.1.10	eip	xxx.240.1.21	xxx.com	TCP：80、443	xxx.xxx.123.456	TCP:443
A The server -2	A2	Internet	192.168.1.11	xxx.240.1.11

Such as ：xx System （docker、jdk、tomcat 、8080 、8081）

Screenshot first ss -naltp Results of , See what service programs are running on it / port .

1、 Drive letter mount

df -h
cat /etc/fstab
# Here is the initialization operation .  There are also some common operations for initializing the system ： Synchronization time  、 with yum Source 、 Equipped with firewall and so on 

2、 Install the required software

Such as nginx 、PHP

3、 The steps to install the system *

Such as the installation A System ： Upload project files to the specified directory , Modify the configuration file .

4、 System startup script

# Such as ：
nohup java -Dfile.encoding=UTF-8 -jar -Xmx512m Dxxx.*.jar >nohup.out 2>&1 &

5、 System upgrade / Update instructions

Such as ：《xx System update operation and installation manual .docx》

6、 System debug log

 Such as  /var/log/nginx/error.log   ;  laravel.log 

7、 System access address / Screenshot

8、 Patrol item

9、 Be confused

10、 Summary of system construction

11、 The system to which this system is associated

Such as ： It's related to redis The server 、 database server 、 Butted the nail 、 The other B System configuration .

12、history The key part

13、history

Finish the above steps , Have a general understanding of the system , Then practice in the test environment .
Welcome to discuss , This article can also be supplemented .