Weblogic 12c (12.1.3.0.0) Admin and Nodemanager Issues

Installed weblogic12c(12.1.3.0.0) succesfully.

After installation I got many erros like not starting the Admin Server Then after NodeManger etc.
Here am giving the solutions for Admin Server issues:
installed weblogic on non SSL mode.
Check The config.xml file as always when the Admin server is not coming up.
I changed the couple of parameters in config.xml
cd $DOMAIN_HOME/config
configCache  config.lok  config.xml  config.xml_back  deployments  diagnostics  jdbc  nodemanager  security  startup
 10.1.11.104 ,update from hostname to IP Address as I Installed this on VM.
After this cahnge am able to start my Admin server.
After launch teh Admin server my cpnsole page take huge time to open like after 45 min my login page appeared .For this issue we  added JAVA_OPTIONS in domain.env file as below.
JAVA_OPTIONS="${JAVA_OPTIONS} -Djava.security.egd=file:/dev/./urandom"
export JAVA_OPTIONS
 in setDomainEnv.sh file.
Then after bounce the Admin server it works as expected.
2)Node Manager  startup issue.
The same way nodemanger will coming for after 20 min when I executed the start command.
JAVA_OPTIONS="${JAVA_OPTIONS} -Djava.security.egd=file:/dev/./urandom"
export JAVA_OPTIONS
Added in startNodeManager.sh
Issue has been resolved.
3)Domain Servers are not coming up through command prompat or console.
This is struggled a lot,Many ways I tried to resolved ,but lastly I amnged to startup from both the ways adding below parameters.
-Dweblogic.management.discover=false -Dweblogic.management.server=${ADMIN_URL} First I added above parameter in startManagedWebLogic.sh which will start domain servers. I am succed on this .Then after the same parameters passed specifically in created Manged servers through console.
 login to console:
go to Enviornments>servers> WLS_1
go to server start tab and add in Argument column abvoe parameters.
And try to start the  services through console.It will come up with out any issue.
Please contact me if any .