[Linux] Linux environment configuration and deployment project backend

Welcome Huihui’s Code World ! !? ?

Let’s take a look at the related operations on Linux written by Huihui

Table of Contents

Welcome Huihui’s Code World! !

1.Linux environment configuration

1.JDK

①Upload the installation package to the server

②Unzip the corresponding installation package

③Configure environment variables

2. Tomcat

①Start tomcat

②Firewall settings

3.MySQL

①Delete the default database

②Extract the MySQL installation package to the specified directory

③Install MySQL

④Start the MySQL service

⑤Log in to MySQL to change password

⑥Modify password verification policy

⑦Change password

⑧Refresh service

⑨Modify remote permissions

⑩ Test whether the connection can be successful

2. Deploy project back-end interface

1. Place the war package into the specified location

2. Check the database name corresponding to the project

3. Create database and import sql script

4. Access the project in the browser

3. Deployment of single project

1. Place the war package into the specified location

2. Check the database name and import sql script

3..Access the project in the browser?

Modify access port number

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1.Linux environment configuration

1.JDK

①Upload the installation package to the server

The tool used here is MobaXterm, so you can use drag and drop to upload files. If you use other software, you can go online to find relevant operations by yourself

Check whether the file is uploaded successfully. You can query it in the directory where the file was uploaded

②Extract the corresponding installation package

1. Unzip the .tar file

   tar -xvf file.tar

2. Unzip the .tar.gz or .tgz file

   tar -zxvf file.tar.gz

3. Unzip the .bz2 file

   tar -xjvf file.bz2

4. Unzip the .xz file

   tar -xJvf file.xz

   

③Configure environment variables

#Configure environment variable path
vim /etc/profile

#java environment
export JAVA_HOME=/wh/tools/jdk1.8.0_151 (the jdk decompression path is placed here)
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH

#Set environment variables to take effect
source /etc/profile

2.Tomcat

Like JDK, you need to upload the installation package and decompress it.

①Start tomcat

./start.sh//You need to enter the bin directory where tomcat is located and then enter this command

②Firewall Settings

We can check the status of the firewall at this time

#Firewall status
systemctl status firewalld

Now let’s turn off the firewall

#Close firewall
systemctl stop firewalld.service

The firewall is turned off, so we can access it from the outside

However, this approach is unsafe and is not recommended. Now let’s turn on the firewall.

#Start firewall
systemctl start firewalld

Our current approach is to open ports. In layman’s terms, it opens a door for others to access. The above approach of opening the firewall is like leaving the entire home open, so it is said to be unsafe.

#Open port
firewall-cmd --zone=public --add-port=port number/tcp --permanent

But opening the port is not enough. We need to refresh the firewall rules.

#Update firewall rules
firewall-cmd --reload

Now we can also look at the firewall list [you can see the two ports we just successfully opened]

#Firewall list
firewall-cmd --zone=public --list-ports

For safety and convenience, we can also set the firewall to start automatically

#Firewall self-starting
systemctl disable firewalld.service

Then tomcat is configured

3.MySQL

①Delete the default database

Otherwise, there will be conflicts when installing MySql (check first, then delete and then check)

#View database
rpm -qa|grep mariadb

#Delete the default database
rpm -e --nodeps database name

Like JDK, you need to upload the installation package and decompress it.

②Extract the MySQL installation package to the specified directory

#Create a folder
mkdir mysql-5.7

#Extract the MySQL installation package to the specified directory
tar -xvf mysql-5.7.35-1.el7.x86_64.rpm-bundle.tar -C mysql-5.7

③Install MySQL

#Enter the specified folder
cd mysql-5.7

#Start installation, -ivh where i means installation, v means display the installation process, h means display progress
rpm -ivh mysql-community-common-5.7.35-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-5.7.35-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-5.7.35-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-5.7.35-1.el7.x86_64.rpm

④Start the MySQL service

#Start the MySQL service
systemctl start mysqld

⑤Log in to MySQL and change the password

#View temporary password
 grep "password" /var/log/mysqld.log

#Loginmysql
mysql -uroot -p [You will be prompted to enter your password later? Enter the temporary password]

⑥Modify the password verification policy

#Set the password verification policy (0 or LOW), or the password is too LOW and will not let you pass.
set global validate_password_policy=0;

#Set the password verification length, otherwise the password will not be allowed to pass if it is too short (multiple tests found that the minimum password length is 4 digits)
set global validate_password_length=4;

⑦Change Password

#Update password
set password = password("123456");

⑧Refresh Service

FLUSH PRIVILEGES;

⑨Modify remote permissions

Before performing this operation, you need to enter ‘use mysql’

#Allow remote login to mysql as root
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;

Remember Need to refresh the service again

⑩ Test whether the connection can be successful

2. Deployment project backend interface

1. Place the war package into the specified location

tomcat》webapps

2. View the database name corresponding to the project

/root/wh/tools/apache-tomcat-8.5.20/webapps/ssm/WEB-INF/classes/

3. Build database and import sql script

4. Access the project in the browser

3. Deployment of single project

1. Place the war package into the specified location

2. View the database name and import the sql script

3..Access the project in the browser

Modify access port number

Enter tomcat》conf》setting.xml

Open port

firewall-cmd --zone=public --add-port=8082/tcp --permanent

Remember to take snapshots

Okay, that’s it for today’s sharing, I hope it can help you!