Ubuntu为Tomcat启用80端口

一、tomcat部署调试

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Update the package repository

sudo apt-get updatesudo apt-get upgrade --show-upgrades 

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Install the authbind package

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sudo apt-get install authbind

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This package allows non-root users to bind to ports below 1024. Install the tomcat7 package

sudo apt-get install tomcat7

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The tomcat7-docs, tomcat7-examples,and tomcat7-admin packages aren't required to deploy and maintain a web application. These packages can be skipped unless they are truly needed.

A new user "tomcat7" with primary group "tomcat7" will be created.



Enable authbind
Open a text editor like vim and load the default tomcat configuration file

nano /etc/default/tomcat7

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Remove the comment hash "#" in front of the authbind property and set the value to "yes"

AUTHBIND=yes

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Create authbind bind permission files for ports 80 and 443. Authbind will loop through the directory structure and try to find a byPort file referencing the port number attempting to be bound. Authorization will be granted if the user attempting to bind has execute permission.

touch /etc/authbind/byport/80touch /etc/authbind/byport/443chmod 0755 /etc/authbind/byport/80chmod 0755 /etc/authbind/byport/443chown tomcat7:tomcat7 /etc/authbind/byport/80chown tomcat7:tomcat7 /etc/authbind/byport/443

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Change the Tomcat Port from 8080/8443 to 80/443
Open a text editor like vim and load the server configuration file

nano /etc/tomcat7/server.xml

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Find the connector for port 8080 to port 80 and the redirect port from 8443 to 443:

<Connector port="80" protocol="HTTP/1.1" connectiontimeout="20000" uriencoding="UTF-8" redirectport="443"></Connector>

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Restart the Tomcat service

sudo service tomcat7 restart

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View the catalina.out log after restart and look for any errors. If you see permission denied errors, then you may have missed a step like:
Forgetting to uncomment the AuthBind setting and putting it to "yes"
Forgetting to restart the tomcat7 service as sudo

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最后运行netstat -ant，查看80端口是否起来 。

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二、应用部署

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tomcat配置成功后需要将开发的应用部署到tomcat服务器中。步骤如下：

1、将应用打包为ROOT.war

2、在/usr/share/tomcat7中创建logs目录

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cd /usr/share/tomcat7sudo mkdir logssudo chmod 755 logs

3、创建ROOT.xml文件内容如下：

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<!-- The contents of this file will be loaded for each web application --><Context path="" docBase="/usr/share/tomcat7/ROOT.war" displayName="Tomcat_1" reload="false"         debug="0" privileged="true">    <!-- Default set of monitored resources -->    <WatchedResource>WEB-INF/web.xml</WatchedResource></Context>

? ?其中 docBase="/usr/share/tomcat7/ROOT.war"指向应用部署所在文件地址。

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4、?重启tomcat

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sudo service tomcat7 restart

?提示信息如下：

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 * Stopping Tomcat servlet engine tomcat7   ...done. * Starting Tomcat servlet engine tomcat7   ...done.

?启动完毕后登陆应用地址查看。如还不成功请参考上述步骤修改。