06-07-2017
As far as I am aware there is no problem with SIGTERM on AIX compared to any other other standards compliant UNIX. Any signal can optionally be blocked, except SIGSTOP and SIGKILL.
There has to be a login/startup/setup script that is blocking SIGTERM. I don't have magic suggestions. But what you describe is not standard out of the box behavior.
I would start by checking the usual suspects like profile scripts and login scripts.
Other regulars here on the forums have a lot of detailed AIX knowledge, hopefully they have an explanation or a strategy to help.
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LEARN ABOUT CENTOS
pppoe-setup
PPPOE-SETUP(8) System Manager's Manual PPPOE-SETUP(8)
NAME
pppoe-setup - Shell script to configure Roaring Penguin PPPoE client
SYNOPSIS
pppoe-setup
DESCRIPTION
pppoe-setup is a shell script which prompts you for various pieces of information and sets up an /etc/sysconfig/network-scripts/ifcfg-ppp0
configuration script for the pppoe-start, pppoe-stop and +pppoe-connect scripts.
AUTHOR
pppoe-setup was written by David F. Skoll <dfs@roaringpenguin.com>.
The pppoe home page is http://www.roaringpenguin.com/pppoe/.
SEE ALSO
pppoe(8), pppoe-start(8), pppoe-stop(8), pppoe-connect(8), pppd(8), pppoe.conf(5), pppoe-status(8), pppoe-sniff(8), pppoe-relay(8), pppoe-
server(8)
4th Berkeley Distribution 21 February 2000 PPPOE-SETUP(8)