Oracle Traffic Director Failed To Listen On Privileged Ports (Doc ID 2203157.1)

Last updated on JUNE 14, 2023

Applies to:

Symptoms

OTD fails to bind to privileged ports despite portbind being given sufficient permissions as documented as follows.

Oracle® Fusion Middleware Administering Oracle Traffic Director

https://docs.oracle.com/middleware/1221/otd/admin/tcp_listener.htm#OTADG24102

[9] 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

Cause

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