How to enable access log in apache-tomcat:
Edit conf/server.xml
Add following line

<Valve className="org.apache.catalina.valves.AccessLogValve"/>

How to enable tomcat manager:
Edit conf/tomcat-users.xml
<?xml version='1.0' encoding='utf-8'?>
<tomcat-users>
<role rolename="tomcat"/>
<role rolename="role1"/>
<role rolename="standard"/>
<role rolename="manager"/>
<user username="test" password="test123" roles="standard,manager"/>
<user username="both" password="tomcat" roles="tomcat,role1"/>
<user username="role1" password="tomcat" roles="role1"/>
</tomcat-users>




save following script in /etc/init.d/

use your fav text editor, save following script say "tomcat"


#!/bin/sh
# chkconfig: - 85 15
# description: Tomcat is a servlet container
PROGRAM=$CATALINA_HOME/bin/catalina.sh
#if $CATALINA_HOME is not set
#PROGRAM=/usr/local/apache-tomcat-5.5.25/bin/catalina.sh
if [ -f $PROGRAM ]; then
echo "$1ing" `basename $0`
su - root -c "$PROGRAM $1"
fi


Now chmod
chmod 755 /etc/init.d/tomcat


to automatic start tomcat:
chkconfig --add tomcat
chkconfig tomcat on