Weblogic
In order to prevent access directly to the port, we can implement ip filtering.
The steps to do so are:
1) Login into the Admin Console.
2) Click on the Domain on the left panel.
3) On the right side, Navigate to Security --> Filter tab.
4) Enable 'Connection Logger Enabled'
5) Enter the class name in the Connection Filter tab as ' weblogic.security.net.ConnectionFilterImpl '
6) Now at the Connection Filter Rules add the IP address and you can either set the roles as 'allow' or 'deny' for the mentioned IP address.
The format is: Accesing_Client ServerHosting Port Action Protocol
For example:
With this rule, I'll block any http requests coming from ip 10.157.152.62 to managed server located on socket: 10.157.153.161:7003
10.157.152.62 10.157.153.161 7003 deny http
With this other one, I'll grant access from all the requests http coming from 10.157.152.62 to managed server located on socket: 10.157.153.161:7004
10.157.152.62 10.157.153.161 7004 allow http
When trying to access the denied socket, a message like this should appear on the browser and in the log file for the server being tried to accessed.
The Server is not able to service this request: [Socket:000445]Connection rejected, filter blocked Socket, weblogic.security.net.FilterException: [Security:090220]rule 1
For further information, please refer to documentation: http://download.oracle.com/docs/cd/E12839_01/web.1111/e13711/con_filtr.htm#i1029317
JBoss
Open $JBOSS_HOME/server/$PROFILE/deploy/$JBOSSWEB/server.xml and as a child of
the Host element:
Host name="localhost"
autoDeploy="false" deployOnStartup="false" deployXML="false"
configClass="org.jboss.web.tomcat.security.config.JBossContextConfig"
Add:
Valve className="org.apache.catalina.valves.RemoteAddrValve" allow="192.168.0.1"
The allow attribute is a comma-delimited series of regular expressions, so:
Valve className="org.apache.catalina.valves.RemoteAddrValve" allow="192\.168\.0\..*,192\.168\.1\..*"
Would allow access to all computers in that range. The list can also contain additional IP addresses and ranges via comma separated values.
One can also specify a deny attribute to deny port ranges and also use the RemoteHostValve instead of RemoteAddrValve like so:
Valve className="org.apache.catalina.valves.RemoteHostValve" allow="*.mydomain.com"
would allow connections from all virtual hosts in *.mydomain.com.
1 comment:
This is very informative. Thanks for sharing.
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