diff --git a/lam/docs/manual-sources/howto.xml b/lam/docs/manual-sources/howto.xml
index 010e0203..6a88adfb 100644
--- a/lam/docs/manual-sources/howto.xml
+++ b/lam/docs/manual-sources/howto.xml
@@ -4619,6 +4619,39 @@ mysql> GRANT ALL PRIVILEGES ON lam_cron.* TO 'lam_cron'@'localhost';
+
+
+ NIS net groups
+
+ NIS netgroups can be used to e.g. restrict SSH access to your
+ machines.
+
+ Configuration
+
+ Please add the module "NIS net groups (nisNetGroupHost)" to the
+ list of active host modules.
+
+
+
+
+
+
+
+
+
+ Host editing
+
+ You will now see a new tab when editing hosts. Here you can
+ assign memberships in NIS net groups and also set user/domain.
+
+
+
+
+
+
+
+
+
diff --git a/lam/docs/manual-sources/images/mod_nisNetGroupHost1.png b/lam/docs/manual-sources/images/mod_nisNetGroupHost1.png
new file mode 100644
index 00000000..fbed2a72
Binary files /dev/null and b/lam/docs/manual-sources/images/mod_nisNetGroupHost1.png differ
diff --git a/lam/docs/manual-sources/images/mod_nisNetGroupHost2.png b/lam/docs/manual-sources/images/mod_nisNetGroupHost2.png
new file mode 100644
index 00000000..33b52454
Binary files /dev/null and b/lam/docs/manual-sources/images/mod_nisNetGroupHost2.png differ