Re: Start up failure

[Enrique Rodriguez]

One solution for running services as non-root users and having them 
still operate on privileged ports is to map the externally exposed port 
to one that a non-root Java service, such as James, can startup with.

On linux:
1)  Setup port mapping via iptables.
bash-2.05b# iptables -t nat -A PREROUTING -p tcp --dport 25 -i eth0 -j 
REDIRECT --to-port 10025

where 25 is the external port and 10025 is an "ephemeral" high port you 
set James' SMTP to listen to.  Watch that eth0 is correct for your box.

2)  Persist this setup after reboots.
bash-2.05b# iptables-save > /etc/sysconfig/iptables
3)  Repeat for 110, or 80 and 443 for Tomcat, etc.
-enrique
Brian J. Sayatovic wrote:
I vaguely remember about ports < 1024 only being able to be bound by 
processes running as root.  SMPT is port 25 I believe, well below that 
root-only threshold.  Could you run James' POP3 server on a higher port?

Regards,
Brian.
Gautam Borah wrote:
Hi,
I am trying to start james in Linux as a normal user and it could not 
start. I am able to start from the root user. I get the floowing error 
while I start it,

Phoenix 4.0.1
                                                                               

James 2.2.0
Remote Manager Service started plain:4555
org.apache.excalibur.containerkit.lifecycle.LifecycleException: 
Component named "pop3server" failed to pass through the Initialization 
stage. (Reason: java.net.BindException: Permission denied).
       at 
org.apache.excalibur.containerkit.lifecycle.LifecycleHelper.fail(LifecycleHelper.java:289) 

       at 
org.apache.excalibur.containerkit.lifecycle.LifecycleHelper.startup(LifecycleHelper.java:159) 

       at 
org.apache.avalon.phoenix.components.application.DefaultApplication.startup(DefaultApplication.java:480) 

       at 
org.apache.avalon.phoenix.components.application.DefaultApplication.doRunPhase(DefaultApplication.java:428) 

       at 
org.apache.avalon.phoenix.components.application.DefaultApplication.r

I have also tried by setting the java policy file by modifying the 
phoenix.sh file as,
RUN_CMD="$JAVA_HOME/bin/java $JVM_OPTS \
   $JVM_OPTS \
   $DEBUG \
*    
-Djava.security.policy=/home/gautam/temm/james/james-2.2.0/bin/p-loader/META-INF/java.policy 
\*
   $PHOENIX_JVM_OPTS \
   -Dphoenix.home="$PHOENIX_HOME" \
   -Djava.io.tmpdir="$PHOENIX_TMPDIR" \
   -jar "$PHOENIX_HOME/bin/phoenix-loader.jar" $*"

After setting the policy file to grant all permissions, it still failed.
I am using james-2.2.0.
Could you please help me solve this problem.
Thanks and regards,
Gautam

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