[Aglets-developer] some questions about aglets security(permission)!

[x r. <xr...@ho...>]

H,dear friends:
The version of my Aglets is 2.0.2,and my OS is Windows 2003.
I am a newer to Aglets,and I am developing some applications based on 
Aglets,and meet with some questions.There are three questions 
related security and policy.I am in need of your help,please help me,thanks 
very much! 

############################### ONE 
######################################################

One is this:
I have not deployed domain name items,so when i start the Tahiti,on the dos 
console,some information just like the below appears :
************************************************************************************************************************

[Warning: The hostname seems not having domain name.
Please try -resolve option to resolve the fully qualified hostname
or use -domain option to manually specify the domain name.]
************************************************************************************************************************

Directions:I have not deployed DNS,and i have tested some examples given by 
the System,and there are no any questions,and execute properly.Sometimes
I tested on the same host,sometimes on different hosts,and all situations 
are in good condition.But i want to know how important the domain name is,
and is it necessary for me to deploy it?is it important for the domain name 
to some projects about file-transmission and file-access between different
hosts?Please give some advices,thanks!

###################################### TWO 
##################################################

Two is this: 
i tested the example provied by the Aglets,lying in the 
$aglet_home$\public\examples\patterns\Watcher.class,on the same host.I fill 
in
the corresponding information,and click the "send"button,and some 
exceptions appear on the console screen.The exception information is as 
follows:
************************************************************************************************************************ 

java.lang.Exception: 
atp://xru:2000/:<java.security.AccessControlException::access denied 
(java.io.FilePermission f:\1.txt read)>;
DURING initializeCheck
at com.ibm.agletx.patterns.Notifier.observeInit(Notifier.java:186)
at com.ibm.agletx.patterns.Notifier.start(Notifier.java:270)
at com.ibm.agletx.patterns.Notifier.handleMessage(Notifier.java:154)
at com.ibm.aglets.MessageImpl.handle(Unknown Source)
at com.ibm.aglets.AgletThread.run(Unknown Source)
***** Addr: atp://xru/ place:
No integrity check because no security domain is authenticated.
************************************************************************************************************************

Directions:From the exception information,i think the problem must has 
something to do with the security and permission of this system.But i want
to know how i should configure the related security profiles of Aglets,and 
how i deal with this problem.Is it necessary for me to modify the source
code or the example alget itself?is this problem related with the policy 
file?If so,how can i modify the policy file?Please help me,SOS!thanx!!!

#################################### THREE 
#################################################

Three is this:
I develop an file-searching application based on Aglets.When i tested this 
program as the normal java program,it runs properly.when i encapsules 
it into an aglet,and put it to the corresponding directory.On the Tahiti,i 
create this aglet,and on the dos console,there appears some 
exception information,which is this(this program is used to seach a 
file,which lies in the path of "f:\temp1\he.txt"):
************************************************************************************************************************

java.security.AccessControlException: access denied (java.io.FilePermission 
f:\temp1\he.txt read)
at 
java.security.AccessControlContext.checkPermission(AccessControlContext.java:269)

at 
java.security.AccessController.checkPermission(AccessController.java:401)
at java.lang.SecurityManager.checkPermission(SecurityManager.java:524)
at com.ibm.aglets.tahiti.AgletsSecurityManager.checkPermission(Unknown 
Source)
at java.lang.SecurityManager.checkRead(SecurityManager.java:863)
at java.io.File.isFile(File.java:723)
at examples.hjl_testbed.test0.run(test0.java:1987)
at com.ibm.aglets.SystemMessage.handle(Unknown Source)
at com.ibm.aglets.AgletThread.run(Unknown Source)
************************************************************************************************************************

Directions:Obviously,the problem is somewhat like the second one.It is 
relate to the security and permission of Aglets itself.How can i solve
it?By the way, is the permission and security something to do with the OS 
platform,other than the Aglets platform?please give some some suggestions,
I am waiting for you,thanks a lots!!!
##################################################################################### 


My email address is xr...@ho...,thanks very much!!!

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