Hi A colleague asked me a question to which I had not given much thought before.
We all know that most postfix daemons/services run as unpriviliged users (apart from local and virtual) but the master daemon runs with root privileges? Is it not a risk running master as root (the same reason for running other processes as unprivileged) ? output of ps and lsof commands on my system are attached below : [root@vbg postfix]# ps -ef | grep master root 2237 1 0 16:29 ? 00:00:00 /usr/libexec/postfix/master [root@vbg postfix]# lsof -i tcp:25 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME master 2237 root 12u IPv4 15503 0t0 TCP localhost.localdomain:smtp (LISTEN) Thanx in anticipation, Regards Varad Gupta
