How to Hide Apache Tomcat Version Number from Error Pages

1. 进入tomcat lib目录

cd /usr/local/tomcat7/lib

2. 解压catalina.jar

jar xvf catalina.jar

3. 修改ServerInfo.properteis文件

vi org/apache/catalina/util/ServerInfo.properties
内容：
server.info=Apache Tomcat
server.number=
server.built=Jul 2 2013 08:57:41

4. 将ServerInfo.properties打入jar包

jar uvf catalina.jar org/apache/catalina/util/ServerInfo.properties

5. 重启tomcat.