Network:
127.0.0.1 is the machine, 192.168.1.1 is the first network segment of the C address.
ABC subnet, multicast URL, local URL, how to divide subnet, subnet mask, etc.
Seven-layer OSI. TCP\IP
UDP, TCP.
Shake hands three times and wave four times.
windows:
Use server to know how to use dism, or use dism++
to configure domains, permission groups, and firewalls (I will turn off the firewall because the internal and external networks were isolated before)
Two types of DCHP and static. How to configure and
what is DNS. Configure DNS.
DOS commands, such as simple commands such as ipconfig, instate, and ping.
Can read and understand simple shell commands, and can write simple shell commands.
Will use a lost remote desktop (this is not very good at me)
reinstalling the system will definitely be possible.
Manual 360 first aid kit (many functions are included with 360, such as disconnected first aid kit, wifi)
Configure path.
Will reinstall the system.
Will use virtual machines, configure virtual machines.
linux:
Basic commands, such as CD, ps, kill, rm, mkdir, |, top, mkdir, su, passwd, find, tar and other
docker configurations. (I won't)
Timed tasks. (I won't)
The configuration of the permission group, know 777 permissions.
Will query the log.
FTP will be configured.
Will configure tomcat. Firewall configuration. Know what the basic port number is.
Database:
How to install mysql and configure the port of the database. build database. How to build a table, multi-table query
, write where after delete. Submit manually. Index query.
Configure my.conf.
The index will be configured.
Will use a database management software.
You must understand DDL and DML.
Know the binlog and know that there is no binlog in the official environment.
There will be a lot of regular matching, and the string will be processed.
Excel will be lost, now it is very convenient to use EXCEL to process a small amount of data.
Socker will be configured.
The postman will be lost.
Know the basic business logic. Know the basic port of program development.
The mailbox will be configured.
Static webpages will be lost (errors are at least understandable), cookies.
Know all kinds of browser kernels.