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Weblogic server is not starting up ; weblogic.security.SecurityInitializationException: Authentication for user denied

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  If the weblogic server is not starting up and giving the below error , please follow the below solution :- Error :- #Aug 18, 2014 12:47:25 AM PDT# #Notice# #Security# #BEA-090082# #Security initializing using security realm myrealm.# #Aug 18, 2014 12:47:25 AM PDT# #Critical# #Security# #BEA-090403# #Authentication for user  denied# #Aug 18, 2014 12:47:25 AM PDT# #Critical# #WebLogicServer# #BEA-000386# #Server subsystem failed. Reason: weblogic.security.SecurityInitializationException: Authentication for user  denied weblogic.security.SecurityInitializationException: Authentication for user  denied                 at weblogic.security.service.CommonSecurityServiceManagerDelegateImpl.doBootAuthorization(CommonSecurityServiceManagerDelegateImpl.java:966)                 at weblogic.security.service.CommonSecurityServiceManagerDelegateImpl.initialize(CommonSecurityServiceManagerDelegateImpl.java:1054)                 at weblogic.security.service.SecurityServiceMa
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Weblogic server is not starting up ; java.lang.AssertionError

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  If the weblogic server is not starting up and giving the below error , please follow the below solution :- Error :- #Aug 18, 2014 12:34:29 AM PDT# #Notice# #WebLogicServer# #BEA-000365# #Server state changed to STARTING# #Aug 18, 2014 12:34:29 AM PDT# #Info# #WorkManager# #BEA-002900# #Initializing self-tuning thread pool# #Aug 18, 2014 12:34:29 AM PDT# #Notice# #Log Management# #BEA-170019# #The server log file /u01/app/oracle/config/domains/Vinay/servers/AdminServer/logs/AdminServer.log is opened. All server side log events will be written to this file.# #Aug 18, 2014 12:34:29 AM PDT# #Critical# #WebLogicServer# #BEA-000386# #Server subsystem failed. Reason: java.lang.AssertionError: Could not obtain the localhost address. The most likely cause is an error in the network configuration of this machine. java.lang.AssertionError: Could not obtain the localhost address. The most likely cause is an error in the network configuration of this machine.                 a
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Weblogic server is not starting up ; error is unable to get file lock

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If the weblogic server is not starting up and giving the below error , please follow the below solution :- Error :- Aug 15, 2014 12:53:34 AM PDT   Info   WebLogicServer   BEA-000377 Starting WebLogic Server with Oracle JRockit(R) Version R28.2.7-7-155314-1.6.0_45-20130329-0641-linux-x86_64 from Oracle Corporation  Aug 15, 2014 12:53:45 AM PDT   Info Management BEA-141281 unable to get file lock, will retry ... Aug 15, 2014 12:56:37 AM PDT Info Management BEA-141281 unable to get file lock, will retry ... Aug 15, 2014 12:56:40 AM PDT Critical WebLogicServer BEA-000362 Server failed. Reason: There are 1 nested errors: weblogic.management.ManagementException: Unable to obtain lock on /u01/app/oracle/config/domains/Vinay/servers/AdminServer/tmp/AdminServer.lok. Server may already be running                 at weblogic.management.internal.ServerLocks.getServerLock(ServerLocks.java:206)                 at weblogic.management.internal.ServerLocks.getServerLock(Se
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Installation of Entreprise Manager Cloud Control 12c (12.1.0.4) on Linux 5.8

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·          Check the libraries on the UNIX host :- [oracle@pocgrd01 u01]$ rpm -qa --queryformat "%{NAME}-%{VERSION}-%{RELEASE}(%{ARCH})\n" | grep glibc glibc-2.5-118.el5_10.2(x86_64) glibc-devel-2.5-118.el5_10.2(x86_64) glibc-2.5-118.el5_10.2(i686) glibc-headers-2.5-118.el5_10.2(x86_64) glibc-devel-2.5-118.el5_10.2(i386) glibc-common-2.5-118.el5_10.2(x86_64) ·          Check the shmmax parameter [root@pocgrd01 ~]# cat /proc/sys/kernel/shmmax 4398046511104 ·          Check the groups and permissions [oracle@pocgrd01 u01]$ id oracle uid=1101(oracle) gid=54321(oinstall) groups=54321(oinstall),54322(dba),1000(oracle) ·          Check the File Descriptor :-  [oracle@pocgrd01 /]$ ulimit -u 131072 ·          Create the HOME directory for Cloud Control & agent [oracle@pocgrd01 u01]$ mkdir -p /u01/app/Oracle/Middleware/ [oracle@pocgrd01 u01]$ mkdir -p /u01/app/Oracle/agent12c ·          Export the display [oracle@pocgrd01 u01]
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