diff -up ./etc/ypserv.conf.slp-warning ./etc/ypserv.conf
--- ./etc/ypserv.conf.slp-warning 2006-10-12 13:03:32.000000000 +0200
+++ ./etc/ypserv.conf 2013-05-06 18:32:16.581509617 +0200
@@ -13,9 +13,9 @@
# Should we register ypserv with SLP? Only available if SLP support
# is compiled in. Deprecated functionality.
-slp: no
+# slp: no
# After how many seconds we should re-register ypserv with SLP?
-slp_timeout: 3600
+# slp_timeout: 3600
# xfr requests are only allowed from ports < 1024
xfr_check_port: yes