So easy deploy program to server

Import mirror

open VMWare, Click on “ open virtual machine ”, This article chooses centos7.ova Image storage path

Click Import

choice “ Don't show this message again ”, Click on “ retry ” Button

Click on “ Edit virtual machine settings ”, Modify the processor 、 Memory 、 After hard disk and other information , start-up . Press Ctrl+Alt Key to switch to windows Next . After successful startup , Enter account root password 123456( The account and password shall be subject to the settings of the image system ), Sign in .

To configure IP Address

First in VMWare Set the network connection mode as Bridging mode

About centos7 obtain IP Address There are two main ways ,

1. Get dynamic ip
2. Set static ip

Get dynamic ip

The premise is that your router has Open the DHCP, Modify the network card configuration file

vi /etc/sysconfig/network-scripts/ifcfg-enp0s3
# ifcfg-enp0s3  For network card name 

Get dynamic IP The address needs Two changes that will do

BOOTPROTO="dhcp"
ONBOOT="yes"

After modification restart Just click the network service systemctl restart network

[[email protected] ~]# systemctl restart network
[[email protected] ~]#

Such dynamic configuration IP The address is set , Check again at this time ip addr You can see that you have obtained IP Address ( Record the settable fixed ip), And you can go online ping www.baidu.com

Setting up ip

Or modify the network card configuration file

vi /etc/sysconfig/network-scripts/ifcfg-enp0s3

take BOOTPROTO="dhcp" Change to BOOTPROTO=“static”

BOOTPROTO="static"

Add again IP Information

IPADDR="192.168.0.121" # The setting is fixed IP
NETMASK="255.255.255.0" # Subnet mask , It doesn't need to be modified 
GATEWAY="192.168.0.1" #VMware gateway IP Address 
DNS1="114.114.114.114" # This is domestic DNS Address , fixed 

Difficult problems

Question 1 ：systemctl restart network Report errors

Job for network.service failed. See ‘systemctl status network.service’ and ‘journalctl -xn’ for details.

Question two ：ping Not Baidu

terms of settlement

• exclude ip Conflict

Use host ping This ip See if it already exists .

• Delete redundant network card configuration files

Delete ifcfg-e Redundant network card configuration file at the beginning

rm -f /etc/sysconfig/network-scripts/ifcfg-eXXX

• HWADDR error , Find the correct HWADDR

Input ip addr, Find the HWADDR

Get into cd /etc/sysconfig/network-scripts Edit the corresponding table of contents vi ifcfg-ensXX, take HWADDR Set up correctly , restart service network restart perhaps Delete HWADDR.

• take ifc-ethXX Medium DEVICE That line Comment out or delete

• take ifcfg-xxx Medium NAME Change to be consistent with the file name

• Delete NIC UUID

• stop it NetworkManager.service

Stop the network management service

[[email protected] Desktop]# systemctl stop NetworkManager.service
[[email protected] Desktop]# systemctl disable NetworkManager.service
Removed symlink /etc/systemd/system/multi-user.target.wants/NetworkManager.service.
Removed symlink /etc/systemd/system/dbus-org.freedesktop.NetworkManager.service.
Removed symlink /etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service.

restart network service

[[email protected] network-scripts]# service network restart
Restarting network (via systemctl): [ OK ]

• Delete device rule profile

With or without this document , Just delete

rm -f /etc/udev/rules.d/70-persistent-net.rules

• open VMWare Virtual machine Services

• see VMWare Whether the network adapter in the lower right corner is connected , If there is no connection, connect

• Restart the solution

If none of the above is solved , There's one last move -- restart See if there are miracles ！[email protected]$%^&*

• No matter what

1. Use NAT Pattern
2. Change to dynamic acquisition first ip Address
3. View the current DNS cat /etc/resolv.conf
4. Change to static ip
5. After updating the required software, you can change back to the bridge mode again

install JDK1.8

download JDK

https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html

Upload to centos

Will local jdk-8u281-linux-x64.tar.gz Upload to /usr Next , Rename it to java1.8, If the local directory is switched to d:/tmp1

sftp>lcd d:/tmp1

centos Change directory to /usr

sftp>cd /usr

Check the local directory

sftp> lpwd
d:/tmp

see centos Catalog

sftp> pwd
/usr

Upload

sftp> put jdk-8u281-linux-x64.tar.gz

rename

sftp> mv jdk-8u281-linux-x64.tar.gz java1.8

decompression JDK

Enter command cd /usr Come to the copy file just now , Enter command tar -zxvf java1.8 unpack , Extract a folder jdk1.8.0_281, Go to this folder

Configure environment variables

Enter command vi /etc/profile Modify the configuration file , Remember to be in root Modify under authority , Input i Enter editing status , Then move the cursor to the last line , Paste the following , want Set according to your own decompression directory

Click on esc Enter command mode , Input :wq Save modification information ; Then type the command source /etc/profile Make profile effective .

test

Enter command java -version see .

install MySQL5.7

install wget

yum -y install wget

download rpm package

sudo wget http://repo.mysql.com/yum/mysql-5.7-community/el/7/x86_64/mysql57-community-release-el7-10.noarch.rpm
sudo rpm -ivh mysql57-community-release-el7-10.noarch.rpm

install mysql

sudo yum -y install mysql-community-server

start-up mysql

sudo systemctl start mysqld

Set boot up

sudo systemctl enable mysqld

Find the initial password

stay /var/log/mysqld.log Found in file Initial password

cat /var/log/mysqld.log

land mysql

sudo mysql -uroot -p

Enter the above initial password

Change Password

ALTER USER 'root'@'localhost' IDENTIFIED BY '1qaz!QAZ';

The default rule of password strength is ： Minimum length 8 position , Contains upper and lower case letters 、 Numbers 、 Special characters

Set up remote login

• Execute the authorization order

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '1qaz!QAZ' WITH GRANT OPTION;

exit sign out mysql Operation console

• to open up 3306 port

Turn on the firewall

sudo systemctl start firewalld.service

Permanent opening 3306 port

sudo firewall-cmd --add-port=3306/tcp --permanent

Reload

sudo firewall-cmd --reload

Turn off firewall

sudo systemctl stop firewalld.service

Set default encoding

• View before modification mysql code

• modify /etc/my.cnf file , Add the following two lines

character_set_server=utf8
init_connect='SET NAMES utf8'

• After modification , restart mysql

sudo systemctl restart mysqld

• Look at the modified mysql code

test

Use navicat Connect mysql

data file location ：/var/lib/mysql
To configure file location ：/etc/my.cnf
journal file location ：/var/log/mysqld.log

The project starts automatically

• Upload jar package

Upload jar Package to /usr/local/project/, A test run

java -jar springboot.jar

• newly added service file

stay /etc/systemd/system/ Below directory , Add a new one to service For the suffix Script file for

cd /etc/systemd/system
vi java.service

The contents of the document are as follows ：

[Unit]
Description=java
After=syslog.target
[Service]
Type=simple
ExecStart=/usr/jdk1.8.0_281/bin/java -jar /usr/local/project/springboot.jar
[Install]
WantedBy=multi-user.target

/usr/jdk1.8.0_281 by jdk The installation path
/usr/local/project/springboot.jar For packed jar Package file

• Add execute permission

chmod +x /etc/systemd/system/java.service

• Reload service

systemctl daemon-reload

• Start the service and join the startup self startup

systemctl start java
systemctl enable java

ps -ef | grep "java"| grep -v grep
systemctl status java.service -l

install Tomcat8.5

• download tomcat8.5

https://tomcat.apache.org/download-80.cgi

• Upload and unzip

Upload to /usr/, And execute the following command to unzip

tar -zxvf apache-tomcat-8.5.63.tar.gz

• tomcat Add startup parameters

tomcat root directory I need to increase One pid file tomcat.pid

touch tomcat.pid

stay tomcat/bin Below directory , increase setenv.sh To configure ,catalina.sh Called at startup , Simultaneous configuration Java Memory parameters

export CATALINA_HOME=/usr/apache-tomcat-8.5.63
export CATALINA_BASE=/usr/apache-tomcat-8.5.63
#add tomcat pid
CATALINA_PID="$CATALINA_BASE/tomcat.pid"
#add java opts
JAVA_OPTS="-server -XX:PermSize=256M -XX:MaxPermSize=1024m -Xms512M -Xmx1024M -XX:MaxNewSiz

• newly added service file

stay /etc/systemd/system/ Below directory , newly added One by service For the suffix The file of

vi /etc/systemd/system/tomcat.service

The contents of the document are as follows

[Unit]
Description=Tomcat
After=syslog.target network.target remote-fs.target nss-lookup.target 
[Service]
Type=forking
Environment="JAVA_HOME=/usr/jdk1.8.0_281"
PIDFile=/usr/apache-tomcat-8.5.63/tomcat.pid
ExecStart=/usr/apache-tomcat-8.5.63/bin/startup.sh
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s QUIT $MAINPID
PrivateTmp=true 
[Install]
WantedBy=multi-user.target

• Add execute permission

chmod +x /etc/systemd/system/tomcat.service

• Reload service

systemctl daemon-reload

• Start the service and join the startup self startup

Direct start

systemctl start tomcat

chkconfig mysqld on

systemctl enable tomcat

View startup status

systemctl status tomcat.service

Out of Service

systemctl stop tomcat

Inquire about tomcat process

ps -ef | grep “tomcat”| grep -v grep

If Multiple tomcat, Then copy to a different directory , Use different ports .tomcat.service The file name can be different .

 Such as ：tomcat1.service tomcat2.service tomcat3.service

• Restart the server

restart , Try to access .