Created attachment 188984 [details] security hardening_screen_shot FreeBSD installation Document still 9.x need to update 11.1(English version) Chapter 2-2.8. Post-Installation,need to add "System hardening" "Choose system security hardening options:" "[] Hide processes running as other users" "[] Hide processes runing as other groupds "[] Disable reading kernel messages buffer for unprivileged users" "[] Disable process debugging facilities for unprivileged users" "[] Randomize the PID of newly created processes" "[] Insert stack guard page ahead of the growable segments" "[] Clean the /tmp filesystem on system startup" "[] Disable opening Syslogd network socket (disable remote logging)" "[] Disable Sendmail service"