Installation Environment: Linux (CentOS 64-bit)
Installing the software: apache-tomcat-9.0.20.tar.gz (Download http://tomcat.apache.org/ )
A: JDK installation configuration
Tomcat is one of the open source and free java Web server, the Apache Software Foundation project, so you want to install java JDk Before you install Tomcat, refer to [Linux] JDK installation and configuration (linux-tar.gz version)
Two: Tomcat installation configuration
1, download Tomcat9.0.20, the file apache-tomcat-9.0.20.tar.gz moved to the / usr / tomcat /, and decompression:
tar -xzvf apache-tomcat-9.0.20.tar.gz
2, view the port and the port occupancy details
tomcat default port is 8080, as is occupied, you need to modify the port configuration of tomcat
See all ports: netstat -ntpl
View 8080 port is not in use: netstat -tunlp | grep 8080 or lsof -i: 8080 (Note: If no lsof command prompt, use yum install lsof installed)
It said process ID 8080 occupied port 908 of the process,
View details of the process such as occupation of port 8080, use:
ps aux | grep 908
It represents running tomcat / apache-tomcat-9.0.20 process takes up 8080 port,
To kill the process to release the port, use the kill -9 908 closed process 908
The occupancy is not a tomcat 8080 port, do not need to kill the process, then you need to change the port configuration of tomcat
2, tomcat port configuration, which modify tomcat conf / server.xml
There are three ports in server.xml file settings:
<Server port = "8005" shutdown = "SHUTDOWN">: Use closed
<Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" /> ： 一般应用使用
<Connector port = "8009" protocol = "AJP / 1.3" redirectPort = "8443" />: is AJP port, i.e. containers, such as APACHE AJP protocol access through port 8009 Tomcat
vi conf / server.xml
Three: Start Tomcat
Start tomcat, respectively, into the inside of the bin directory tomcat
Execution: ./startup.sh -> Start tomcat
Execution: ./shutdown.sh -> closed tomcat
Browser, enter: http: // ip: 8080 (ip IP address of the server), you can access tomcat
Four: Set tomcat boot
1. Find / etc rc.local file in the folder (some folder in /etc/rc.d file), and finally add the following java environment variables and start tomcat command in the file:
export JAVA_HOME=/usr/java/jdk1.8.0_211
export JRE_HOME=$JAVA_HOME/jre
sh /usr/tomcat/apache-tomcat-9.0.20/bin/startup.sh
Save and exit : wq
2, rc.local file to add execute permissions
chmod +x etc/rc.d/rc.local
3, restart the server, you can access Tomcat
reboot