Stefan Frank wrote:
I tried to tweak the security manager of tomcat(using no restrictions at all) - with no effect. And I have absolutely no idea how to set the security-settings for the Webapp: And if i knew, does anyone know if there is a level of control below the reight to call runtime.exec()?! I mean, if the webapp is allowed to spawn a process, can i restrict the abilities of this spawned process?! And in a platform independent matter?! Or is there a bug somwehere else?!
Patrick Willart wrote:
I suspect the problem to be that no external task that is started by Tomcat
is allowed to open any connections.
I had a similar problem with cgi and a windows executable. The executable
tried to open a socket connection. The same setup had worked on a different
server but not on Tomcat. I ended up rewritting the program as a java
servlet. This worked.
If you setup a Security Manager for Tomcat then you can control what the java code of your applications is allowed to do.
Grts,
Patrick -----Original Message----- From: Stefan Frank [mailto:[EMAIL PROTECTED] Sent: Saturday, November 08, 2003 6:52 AM To: [EMAIL PROTECTED] Subject: Strange behaviour of runtime.exec(...)
Hi,
we are trying to make some calls to scripts from within tomcat, so we are using runtime.exec() inside a Servlet: The script (it submits a Job to teh Sun Grid Engine, http://gridengine.sunsource.net/) runs fine from the command line, and also the java-class, which is called from the servlet for the submit, runs fine outside of tomcat: When the Class is called from inside tomcat, the job is submitted, but never reaches the scheduler: It looks like the spawned process is not allowed to make up sockets to the outside world - are there any restrictions on using Runtime.exec() from within tomcat?! And if there is, is there a way around these restrictions?!
Greetings&thx in advance for any help Stefan
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