我想在端口80上启动Tomcat 6.0.29。我的操作系统是CentOS版本5.5（最终版），我在$ TOMCAT_HOME / conf /
server.xml中更改了以下行

<Connector connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443"/>

至

<Connector connectionTimeout="20000" port="80" protocol="HTTP/1.1" redirectPort="8443"/>

然后我运行命令：

sudo /etc/init.d/tomcat6 start

在文件$ TOMCAT_HOME / logs / catalina.log中，我发现了以下异常：

java.net.BindException: Permission denied <null>:80
    at org.apache.tomcat.util.net.JIoEndpoint.init(JIoEndpoint.java:549)
    at org.apache.tomcat.util.net.JIoEndpoint.start(JIoEndpoint.java:565)
    at org.apache.coyote.http11.Http11Protocol.start(Http11Protocol.java:203)
    at org.apache.catalina.connector.Connector.start(Connector.java:1087)
    at org.apache.catalina.core.StandardService.start(StandardService.java:534)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.net.BindException: Permission denied
    at java.net.PlainSocketImpl.socketBind(Native Method)
    at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:365)
    at java.net.ServerSocket.bind(ServerSocket.java:319)
    at java.net.ServerSocket.<init>(ServerSocket.java:185)
    at java.net.ServerSocket.<init>(ServerSocket.java:141)
    at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(DefaultServerSocketFactory.java:50)
    at org.apache.tomcat.util.net.JIoEndpoint.init(JIoEndpoint.java:538)
    ... 12 more
0:11:56 org.apache.catalina.startup.Catalina start
SEVERE: Catalina.start:
LifecycleException:  service.getName(): "Catalina";  Protocol handler start failed: `java.net.BindException: Permission denied <null>:80
    at org.apache.catalina.connector.Connector.start(Connector.java:1094)
    at org.apache.catalina.core.StandardService.start(StandardService.java:534)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
0:11:56 org.apache.catalina.startup.Catalina start`

提前致谢