André Warnier wrote:
Kaushal Shriyan wrote:
Hi
I am not able to start tomcat as tomcat user on ubutu 8.04 Linux,
Below is my start/stop script
Any ideas as what is going wrong ?
I think the way you are using the "su" command is wrong.
Try :
su - (userid) -c "command + params"
You also probably want to re-direct the output of "command" to /dev/null
etc..
Using another of the scripts existing in /etc/init.d as template, and
modifying it, may be a better idea.
As André Warnier suggests, install an init script to handle the startup
and shutdown of Tomcat as a non-privileged user. The following notes
assume a RedHat like Linux distro, such as Fedora or CentOS, but should
be helpful to Ubuntu or Debian users:
1. Configure the environment for the non-privileged user by adding the
following lines to the end of the file .bash_profile found in the
user's home directory:
JAVA_HOME=/usr/java/default
CATALINA_HOME=$HOME/tomcat
CATALINA_OPTS="-Xms256M -Xmx1000M -XX:MaxPermSize=128M"
export JAVA_HOME CATALINA_HOME CATALINA_OPTS
Adjust the heap settings to suit your requirements.
2. As root, install an init script like the following to the /etc/init.d
directory:
#!/bin/sh
# Start the webapp container
TOMCAT_USER=web
tomcat_start () {
su -l -c /home/$TOMCAT_USER/tomcat/bin/startup.sh $TOMCAT_USER
}
tomcat_stop () {
su -l -c /home/$TOMCAT_USER/tomcat/bin/shutdown.sh $TOMCAT_USER
}
case "$1" in
start)
tomcat_start
;;
stop)
tomcat_stop
;;
restart)
tomcat_stop
sleep 30
tomcat_start
;;
*)
echo "Usage: /etc/init.d/tomcat {start|stop|restart}"
exit 1
;;
esac
exit 0
3. Assuming that the init script has been installed as
/etc/init.d/tomcat, then run the following commands as root:
# chmod 755 /etc/init.d/tomcat
# ln /etc/init.d/tomcat /etc/rc0.d/K13tomcat
# ln /etc/init.d/tomcat /etc/rc1.d/K13tomcat
# ln /etc/init.d/tomcat /etc/rc2.d/S69tomcat
# ln /etc/init.d/tomcat /etc/rc3.d/S69tomcat
# ln /etc/init.d/tomcat /etc/rc4.d/S69tomcat
# ln /etc/init.d/tomcat /etc/rc5.d/S69tomcat
# ln /etc/init.d/tomcat /etc/rc6.d/K13tomcat
I find that using hard links rather than sym links makes it easier to
find all links to an init script using find(1).
4. Tomcat will have to listen on unprivileged ports, such as 8080 and
8443, so you can either proxy from Apache, or if you have no need to
run a web server as well as Tomcat then you can use the following
commands to enable port forwarding:
# /sbin/iptables -A FORWARD -p tcp --destination-port 80 -j ACCEPT
# /sbin/iptables -t nat -A PREROUTING -j REDIRECT -p tcp
--destination-port 80 --to-ports 8080
# /sbin/iptables -A FORWARD -p tcp --destination-port 443 -j ACCEPT
# /sbin/iptables -t nat -A PREROUTING -j REDIRECT -p tcp
--destination-port 443 --to-ports 8443
# /sbin/service iptables save
# chkconfig iptables on
# service iptables start
Hope this helps,
Chris
--
Chris Wareham
Senior Software Engineer
Visit London Ltd
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