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Comment: abstract tomcat version, link to article

Configuring Debian or Ubuntu To Run a Servlet Container as Non-Root

Tomcat 6, 7, 8

For recent releases of Debian and Ubuntu the tomcat6 package tomcat<n> package includes a dependency on the authbind package and a default authbind configuration that allows the Tomcat 6 container to bind to ports < 1024 without running the whole JVM as root user.

To leverage the authbind configuration edit the Tomcat 6 configuration file /etc/default/tomcat6 and settomcat<n> and set (at the very end)

Code Block
AUTHBIND=yes

See also this Debian Administrator article or check the man page for authbind.

...

Code Block
touch /etc/authbind/byport/443
chmod 0755 /etc/authbind/byport/443 
chown tomcat6tomcat8:tomcat6tomcat8 /etc/authbind/byport/443 # or tomcat<n>:tomcat<n> for your version