diff --git a/docs/20_Checks/check_ceph_io.md b/docs/20_Checks/check_ceph_io.md
index 5426c1f3611e34f31a6e394cfbc3016158c2d26d..9eed61977977ff5c3498dc26b0bdfc15e2aaa38a 100644
--- a/docs/20_Checks/check_ceph_io.md
+++ b/docs/20_Checks/check_ceph_io.md
@@ -9,6 +9,10 @@ It returns a single line for the status and performance data.
 
 * `ceph` binary and sudo permission on it to get the information
 
+```txt
+icingaclient ALL=(ALL) NOPASSWD: /bin/ceph
+```
+
 ## Syntax
 
 ```txt
diff --git a/docs/20_Checks/check_ceph_osd.md b/docs/20_Checks/check_ceph_osd.md
index d1a09a65b9f716046b197207d0f0c8d081ab2942..5c4bf6000ff1f1c0a7d5c8965eabd0473c83341e 100644
--- a/docs/20_Checks/check_ceph_osd.md
+++ b/docs/20_Checks/check_ceph_osd.md
@@ -12,6 +12,10 @@ critical level.
 
 * `ceph` binary and sudo permission on it to get the information
 
+```txt
+icingaclient ALL=(ALL) NOPASSWD: /bin/ceph
+```
+
 ## Syntax
 
 ```txt
diff --git a/docs/20_Checks/check_onehost.md b/docs/20_Checks/check_onehost.md
index 82359ce9507b6cc71e5aace75885e696dbf9c33b..e5c5e6d1d17b4409c7b03e3416c2afbb335e19dd 100644
--- a/docs/20_Checks/check_onehost.md
+++ b/docs/20_Checks/check_onehost.md
@@ -22,11 +22,13 @@ icingaclient ALL=(ALL) NOPASSWD: /bin/onehost
 ./check_onehost -h
 ______________________________________________________________________
 
-CHECK_ONEHOST 
+CHECK_ONEHOST
 v1.1
 
 (c) Institute for Medical Education - University of Bern
 Licence: GNU GPL 3
+
+https://os-docs.iml.unibe.ch/icinga-checks/Checks/check_onehost.html
 ______________________________________________________________________
 
 show count of hosts in OpenNebula and warn if a host is down.