Alibaba Cloud centos7.3 Installation Tomcat8

installation Downloadwget http://mirrors.cnnic.cn/apache/tomcat/tomcat-8/v8.0.22/bin/apache-tomcat-8.0.22.tar.gz UnzipTar Xvfz apache-tomcat-8.0.22.tar.gz MovingMV Apache-tomcat-8.0.22/usr/local Start/usr/local/apache-tomcat-8.0.22/bin/startup.sh ValidationThe Tomcat default management interface appears in the browser open http://ip:8080, indicating that the installation started successfully.

problemIf you cannot open the Tomcat default management interface, make sure that the firewall is open for Tomcat access port and it's important that there is a security group in Alibaba cloud that needs to add 8080 ports (it's been in the pit for a long time)
method one firewall (recommended):
Centos7 default is to use firewall as the firewall firewall-cmd--permanent--zone=public--add-port=8080/tcp so that the appropriate ports are opened. Firewall-cmd--reload makes the latest firewall settings rules effective.
method Two iptables:Centos7 default is firewall as a firewall, this is changed to iptables firewall step 1. Close firewall:Systemctl Stop firewalld.service #停止firewall systemctl disable Firewalld.service #禁止firewall开机启动 firewall-cmd--state # View default firewall status (show notrunning after turn off, show running after turn on) yum install iptables-services #安装iptables-services 2. Iptables firewall Vi/etc/sysconfig/iptables #编辑防火墙配置文件 Firewall iptables document Configuration Reference # Firewall configuration written by System-config-firewall & nbsp   # Manual Customization of this file are not recommended.     *filter    : INPUT accept [0:0]    : FORWARD accept [0:0]    : OUTPUT Accept [ 0:0]    -a input-m state--state established,related-j Accept    -A input-p icmp-j ACCEPT    -a input-i lo-j accept    -a input-m state--state new-m tcp-p TCP--dport 22-j accept   &NB Sp -A input-m State--state new-m tcp-p TCP--dport 8080-j ACCEPT    -A input-m State--state new-m tcp-p t CP--dport 8686-j Accept    -A input-m State--state new-m tcp-p TCP--dport 3306-j accept    - A input-m state--state new-m tcp-p TCP--dport 80-j ACCEPT    -A input-j REJECT--reject-with icmp-host-p rohibited    -A forward-j REJECT--reject-with icmp-host-prohibiteD     COMMIT My last step configuration completed after 8080 port has been unable to access troubleshooting for half a day do not know why later use the IPTABLES-F command to clear the default rules, then you can ...