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What will be the recommended way to ensure that a Tomcat7 instance is running as the tomcat7 (or any other) user?

I suppose that I can modify tomcat7-instance/bin/startup.sh and tomcat7-instance/bin/shutdown.sh and add 'su tomcat7' at the top.

In Tomcat6 I think it was the environment variable TOMCAT6_USER.

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If you are asking for the "secure way" most likely will provoke debates. Now if you ask "how to set a different user for tomcat7?" that is answerable. BTW, tomcat starts with user tomcat, as far I remember if you installed the deb package.. –  Braiam Nov 6 '13 at 0:56

1 Answer 1

up vote 2 down vote accepted

The most common way is to install the standard tomcat7 package with apt-get and to start it using:

sudo service tomcat7 start

The default user and group are configured in /etc/default/tomcat7 as you can see in this excerpt:

# Run Tomcat as this user ID. Not setting this or leaving it blank will use the
# default of tomcat7.
TOMCAT7_USER=tomcat7

# Run Tomcat as this group ID. Not setting this or leaving it blank will use
# the default of tomcat7.
TOMCAT7_GROUP=tomcat7
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TOMCAT7_USER and TOMCAT7_GROUP was what I was looking for. Thanks –  Adrian Ber Nov 6 '13 at 13:19
    
I modified TOMCAT7_USER in tomcat7-instance/bin/setenv.sh and started the server. But if I display the process using ps the user is not the one specified in TOMCAT7_USER. –  Adrian Ber Nov 7 '13 at 1:17
    
Why don't you modify it directly in /etc/default/tomcat7? –  David Levesque Nov 7 '13 at 3:19
    
Let's say that I have two Tomcat user instances and I want to launch them as different users. –  Adrian Ber Nov 7 '13 at 9:56
    
That's a scenario I'm not familiar with, but in this case I don't think you can run Tomcat as a service and the above config does not apply. Maybe you should ask a separate question about that. –  David Levesque Nov 7 '13 at 15:03

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