added sql/net2net-psk scenario

testing/tests/sql/net2net-psk/posttest.dat

@@ -0,0 +1,6 @@
+moon::ipsec stop
+sun::ipsec stop
+moon::/etc/init.d/iptables stop 2> /dev/null
+sun::/etc/init.d/iptables stop 2> /dev/null
+moon::rm /etc/ipsec.d/ipsec.db
+sun::rm /etc/ipsec.d/ipsec.db