Index: head/usr.sbin/bsdinstall/scripts/hardening
===================================================================
--- head/usr.sbin/bsdinstall/scripts/hardening
+++ head/usr.sbin/bsdinstall/scripts/hardening
@@ -38,13 +38,14 @@
     0 0 0 \
 	"0 hide_uids" "Hide processes running as other users" ${hide_uids:-off} \
 	"1 hide_gids" "Hide processes running as other groups" ${hide_gids:-off} \
-	"2 read_msgbuf" "Disable reading kernel message buffer for unprivileged users" ${read_msgbuf:-off} \
-	"3 proc_debug" "Disable process debugging facilities for unprivileged users" ${proc_debug:-off} \
-	"4 random_pid" "Randomize the PID of newly created processes" ${random_pid:-off} \
-	"5 stack_guard" "Insert stack guard page ahead of the growable segments" ${stack_guard:-off} \
-	"6 clear_tmp" "Clean the /tmp filesystem on system startup" ${clear_tmp:-off} \
-	"7 disable_syslogd" "Disable opening Syslogd network socket (disables remote logging)" ${disable_syslogd:-off} \
-	"8 disable_sendmail" "Disable Sendmail service" ${disable_sendmail:-off} \
+	"2 hide_jail" "Hide processes running in jails" ${hide_jail:-off} \
+	"3 read_msgbuf" "Disable reading kernel message buffer for unprivileged users" ${read_msgbuf:-off} \
+	"4 proc_debug" "Disable process debugging facilities for unprivileged users" ${proc_debug:-off} \
+	"5 random_pid" "Randomize the PID of newly created processes" ${random_pid:-off} \
+	"6 stack_guard" "Insert stack guard page ahead of the growable segments" ${stack_guard:-off} \
+	"7 clear_tmp" "Clean the /tmp filesystem on system startup" ${clear_tmp:-off} \
+	"8 disable_syslogd" "Disable opening Syslogd network socket (disables remote logging)" ${disable_syslogd:-off} \
+	"9 disable_sendmail" "Disable Sendmail service" ${disable_sendmail:-off} \
 2>&1 1>&3 )
 exec 3>&-
 
@@ -54,6 +55,9 @@
 	fi
 	if [ "$feature" = "hide_gids" ]; then
 		echo security.bsd.see_other_gids=0 >> $BSDINSTALL_TMPETC/sysctl.conf.hardening
+	fi
+	if [ "$feature" = "hide_jail" ]; then
+		echo security.bsd.see_jail_proc=0 >> $BSDINSTALL_TMPETC/sysctl.conf.hardening
 	fi
 	if [ "$feature" = "read_msgbuf" ]; then
 		echo security.bsd.unprivileged_read_msgbuf=0 >> $BSDINSTALL_TMPETC/sysctl.conf.hardening