(DP) Support Tip: DP90 upgrade on HPUX11.31, failed with Internal Database network communication err

Upgrade failed with the following:

root@myhpserver [/DP/LOCAL_INSTALL]# ./omnisetup.sh
..
  Exporting Data Protector IDB
  RDS service running.
Exporting HP Data Protector Internal Database.
This may take a few minutes.

**********************  DEFAULT ERROR REPORT  *******************************
[Critical] From: OMNIDBUTIL@myhpserver ""  Time: 06/19/16 00:28:50
[12:1165] Internal Database network communication error.
*****************************************************************************
Done!

We see that hpdp-as services down
# omnisv -status
    ProcName      Status  [PID]   
===============================
    crs         : Active  [4448]
    mmd         : Active  [4445]
    kms         : Active  [4447]
    hpdp-idb    : Active  [4129]
    hpdp-idb-cp : Active  [4149]
    hpdp-as     : Down
    omnitrig    : Active
    Sending of traps disabled.
===============================
Status: At least one of the Data Protector processes/services is not running.

/var/opt/omni/log/DPIDBsetup_23328.log shows that it failed to connect to IDB:
###############################################################################################
   IDB storage area initialization
###############################################################################################
Sun Jun 19 00:39:42 SST 2016
+ echo          Initializing Internal Database version A.09.00...\c
+ [ ! -d /var/opt/omni/server/db80/idb ]
+ [ ! -d /var/opt/omni/server/db80/jce ]
+ [ -f /var/opt/omni/server/log/omnidbinit_failed ]
+ [ ! -d /var/opt/omni/server/db80/idb ]
+ [ ! -d /var/opt/omni/server/db80/jce ]
+ chown -R hpdp:20 /var/opt/omni/server/db80/idb
+ chown -R hpdp:20 /var/opt/omni/server/db80/jce
+ /opt/omni/sbin/omnidbinit -force
+ 1>& 2
Unable to connect to the Internal Database. Aborting...
+ + echo 1
rc=1
+ rm -f /etc/opt/omni/server/idb//version.txt
+ [ 1 != 0 ]
+ echo
+ echo ERROR: Unable to Initialize IDB (Return code = 1)
+ echo        For more detail please refer to /var/opt/omni/server/log/DPIDBsetup_23328.log
+ touch /var/opt/omni/server/log/omnidbinit_failed
+ exit 1

/var/opt/omni/server/db80/pg/pg_log/postgresql-2016-06-19_003039.log shows it failed on Ident authentication:
2016-06-19 00:30:39 SST FATAL:  Ident authentication failed for user "hpdp"

On the OS side, auth is already enabled in /etc/services
/etc/services:
auth         113/tcp  authentication ident # Authentication Service

However, we see the following in /var/adm/inetd.sec
auth deny

Here, the “auth” services has been denied.

Solution
Fixed by removing "auth deny"  from /var/adm/inetd.sec