Oracle Traffic Director Failed To Listen On Privileged Ports
Last updated on DECEMBER 05, 2016
Applies to:Oracle Traffic Director - Version 18.104.22.168.0 and later
OTD fails to bind to privileged ports despite portbind being given sufficient permissions as documented as follows.
Oracle® Fusion Middleware Administering Oracle Traffic Director
 Managing Listeners
[9.5] Configure OTD to listen on privileged ports
1. To create listen sockets for privileged ports, OTD bundles a binary named 'portbind'.
2. If OTD needs to listen at privileged ports, an admin needs to provide root ownership and setuid privileges to 'portbind'
chown root portbind.
chmod 4750 portbind.
3. It should be ensured that the server user has the required group ownerships for the above to work
4. The OTD watchdog process uses 'portbind' to create listen sockets that require privileged ports
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