diff --git a/HowtoOpenVPN.md b/HowtoOpenVPN.md
index 99dbf90c..106761c7 100644
--- a/HowtoOpenVPN.md
+++ b/HowtoOpenVPN.md
@@ -128,14 +128,20 @@ Générer un mot de passe pour l'accès à l'interface de management (nécessair
 # apg -n1 -m 12 > /etc/openvpn/management-pwd
 ~~~
 
-On peut utiliser le check NRPE OpenVPN suivant [pour Debian](https://gitea.evolix.org/evolix/ansible-roles/raw/branch/unstable/openvpn/files/check_openvpn_debian.pl) ou [pour OpenBSD](https://gitea.evolix.org/evolix/ansible-roles/raw/branch/unstable/openvpn/files/check_openvpn_openbsd.pl) :
+On peut utiliser le check NRPE OpenVPN suivant pour monitorer le service OpenVPN [pour Debian](https://gitea.evolix.org/evolix/ansible-roles/raw/branch/unstable/openvpn/files/check_openvpn_debian.pl) ou [pour OpenBSD](https://gitea.evolix.org/evolix/ansible-roles/raw/branch/unstable/openvpn/files/check_openvpn_openbsd.pl), à ajouter dans la configuration NRPE :
 
 ~~~
 ## Debian
+# wget https://gitea.evolix.org/evolix/ansible-roles/raw/branch/unstable/openvpn/files/check_openvpn_debian.pl -O /usr/local/lib/nagios/plugins/check_openvpn
+# chmod 755 /usr/local/lib/nagios/plugins/check_openvpn
+# chown root:nagios /usr/local/lib/nagios/plugins/check_openvpn
 # apt install libnet-telnet-perl
-# /usr/local/lib/nagios/plugins/check_openvpn -H 127.0.0.1 -p 1195 -P $MANAGEMENT_PWD 
+# /usr/local/lib/nagios/plugins/check_openvpn -H 127.0.0.1 -p 1195 -P $MANAGEMENT_PWD
 
 ## OpenBSD
+# wget https://gitea.evolix.org/evolix/ansible-roles/raw/branch/unstable/openvpn/files/check_openvpn_openbsd.pl -O /usr/local/libexec/nagios/plugins/check_openvpn.pl
+# chmod 755 /usr/local/libexec/nagios/plugins/check_openvpn.pl
+# chown root:wheel /usr/local/libexec/nagios/plugins/check_openvpn.pl
 # pkg_add p5-Net-Telnet
 # /usr/local/libexec/nagios/plugins/check_openvpn.pl -H 127.0.0.1 -p 1195 -P $MANAGEMENT_PWD
 ~~~
@@ -144,11 +150,17 @@ On peut également utiliser le [check NRPE suivant](https://gitea.evolix.org/evo
 
 ~~~
 ## Debian
+# wget https://gitea.evolix.org/evolix/ansible-roles/raw/branch/unstable/openvpn/files/check_openvpn_certificates.sh -O /usr/local/lib/nagios/plugins/check_openvpn_certificates.sh
+# chmod 755 /usr/local/lib/nagios/plugins/check_openvpn
+# chown root:nagios /usr/local/lib/nagios/plugins/check_openvpn
 # visudo -f /etc/sudoers.d/openvpn
 nagios  ALL=NOPASSWD: /usr/local/lib/nagios/plugins/check_openvpn_certificates.sh
 # sudo /usr/local/lib/nagios/plugins/check_openvpn_certificates.sh
 
 ## OpenBSD
+# wget https://gitea.evolix.org/evolix/ansible-roles/raw/branch/unstable/openvpn/files/check_openvpn_certificates.sh -O /usr/local/libexec/nagios/plugins/check_openvpn_certificates.sh
+# chmod 755 /usr/local/libexec/nagios/plugins/check_openvpn_certificates.sh
+# chown root:wheel /usr/local/libexec/nagios/plugins/check_openvpn_certificates.sh
 # vim /etc/doas.conf 
 permit nopass _nrpe as root cmd /usr/local/libexec/nagios/plugins/check_openvpn_certificates.sh
 # doas /usr/local/libexec/nagios/plugins/check_openvpn_certificates.sh
@@ -157,6 +169,9 @@ permit nopass _nrpe as root cmd /usr/local/libexec/nagios/plugins/check_openvpn_
 Un script [cert-expirations.sh](https://gitea.evolix.org/evolix/shellpki/raw/branch/dev/cert-expirations.sh) peut être mis en cron pour avertir régulièrement des prochaines expirations des certificats clients et serveur :
 
 ~~~
+# wget https://gitea.evolix.org/evolix/shellpki/raw/branch/dev/cert-expirations.sh -O /usr/share/scripts/cert-expirations.sh
+# chmod +x /usr/share/scripts/cert-expirations.sh
+# crontab -e
 @monthly /usr/share/scripts/cert-expirations.sh | mail -E -s "PKI VPN XXX : recapitulatif expirations" mail@example.com
 ~~~