If you install or upgrade to AIX 6.1 or 7.1. the system director console service is now installed by default. This opens two web ports:
https://<hostname>:5336/ibm.console (Optional SSL)
and creates the "pconsole" user.
The service is started from the "/etc/inittab" as follows:
pconsole:2:once:/usr/bin/startsrc -s pconsole > /dev/null 2>&1
You can also see it is active from the SRC:
# lssrc -s pconsole
Subsystem Group PID Status
pconsole pconsole 7143642 active
If it has not been installed, or was previously removed, you can install the following packages from your AIX DVD or NIM Server:
The SDMC is a very useful tool but also opens a potential backdoor as it can enable users to login directly as root, and also later enable their own users. I would recommend disabling it in the "inittab" and only starting it manually when you require it and ensure that you control the "pconsole" user password.