diff --git a/README.MD b/README.MD
index 14c3718..2317222 100644
--- a/README.MD
+++ b/README.MD
@@ -46,7 +46,7 @@ cd fanctl
 2. Make the script executable:
 
 ```bash
-chmod +x fan_control.sh
+chmod +x fanctl.sh
 ```
 
 3. Configure iDRAC settings:
@@ -58,6 +58,7 @@ chmod +x fan_control.sh
      - Click Apply
 
 4. Adjust script variables:
+
    Open the script in a text editor and modify the following variables as needed:
    - `IPMI_HOST`: Your iDRAC IP address or FQDN **(Required)**
    - `IPMI_USER`: iDRAC username **(Required)**
@@ -67,16 +68,50 @@ chmod +x fan_control.sh
    - `LOG_FILE`: Path to the log file **(Optional)**
    - `TEMP_MAX`: Maximum safe temperature threshold **(Optional)**
 
+
+5. For your **Credentials** use a secret file:
+
+The secret file:
+- create a idrac file in /root/.connexions/idrac
+- fill it with three lines : ip, login an password.
+- protect-it 
+	
+```bash 
+touch /root/.connexions/idrac
+sudo chmod 600 /root/.connexions/idrac
+```
+
 ## Usage
 
 Run the script with:
 
 ```bash
-./fan_control.sh
+./fanctl.sh
 ```
 
 For long-term use, consider setting up the script as a systemd service or running it in a screen/tmux session.
 
+### Installation with systemd
+
+1. Copy script in /usr/sbin
+
+```bash
+sudo cp fanctl.sh /usr/sbin/
+```
+
+2. Copy .service file in /etc/systemd/system
+
+```bash
+sudo cp fanctl.service /etc/systemd/system
+```
+
+3. Activate and start the service
+
+```bash
+sudo systemctl enable fanctl
+sudo systemctl start fanctl
+```
+
 ## Important Notes
 
 - This script takes control of your server's fans. Use at your own risk and monitor temperatures closely when first implementing.
diff --git a/fanctl.service b/fanctl.service
new file mode 100644
index 0000000..8d1a3a2
--- /dev/null
+++ b/fanctl.service
@@ -0,0 +1,15 @@
+[Unit]
+Description=fanctl : idrac fan control service
+Requires=network.target
+After=systemd-user-sessions.service
+
+[Service]
+Type=simple
+ExecStart=/usr/sbin/fanctl.sh
+ExecStop=/bin/bash -c 'kill -9 $(ps aux | grep fanctl.sh | grep -v grep | awk '{print $2}')'
+User=root
+#ExecStartPre=/bin/sleep 30
+Requires=NetworkManager.service
+
+[Install]
+WantedBy=multi-user.target
diff --git a/fanctl.sh b/fanctl.sh
old mode 100644
new mode 100755
index bc127eb..e540cb6
--- a/fanctl.sh
+++ b/fanctl.sh
@@ -1,9 +1,10 @@
 #!/bin/bash
 
 # IPMI iDrac Settings
-IPMI_HOST="idrac.lab.local" # Your iDrac IP Address or FQDN
-IPMI_USER="root"            # iDrac Username
-IPMI_PASS="calvin"          # iDrac Password
+IPMI_SECRET_FILE=~/.connexions/idrac # 3 lines, IP\nlogin\npassword
+IPMI_HOST=$(sed -n '1p' $IPMI_SECRET_FILE) # Your iDrac IP Address or FQDN (first line)
+IPMI_USER=$(sed -n '2p' $IPMI_SECRET_FILE) # iDrac Username (second line)
+IPMI_PASS=$(sed -n '3p' $IPMI_SECRET_FILE) # iDrac Password (third line)
 
 # Fan Speed Thresholds
 TEMP_THRESHOLD_1=50
@@ -19,7 +20,7 @@ TEMP_THRESHOLD_8=90
 CHECK_INTERVAL=60
 
 # Log Path
-LOG_FILE="/var/log/fanctrl.log"
+LOG_FILE="/var/log/fanctl.log"
 
 # Danger Zone Temperature Threshold (in Celsius)
 TEMP_MAX=90
@@ -50,7 +51,7 @@ check_dependencies() {
 
 # Get CPU Temps and Parse Out Inlet & Exhaust
 get_cpu_temperatures() {
-    temps=$(ipmitool -I lanplus -H $IPMI_HOST -U $IPMI_USER -P $IPMI_PASS sdr type temperature | grep -E '^\s*Temp\s+\|' | awk -F'|' '{print $5}' | awk '{print $1}')
+    temps=$(ipmitool -I lanplus -H $IPMI_HOST -U $IPMI_USER -P $IPMI_PASS sdr type temperature | grep -E '^\s*Temp\s+\|' | awk -F'|' '{print $5}' | grep -v Disabled | awk '{print $1}')
     if [ $? -ne 0 ]; then
         log "ERROR" "Failed to retrieve temperatures from IPMI. Error: $temps"
         echo ""
@@ -65,7 +66,7 @@ get_avg_cpu_temperature() {
     if [ -z "$temps" ]; then
         echo ""
     else
-        echo "$temps" | awk '{sum+=$1} END {if (NR>0) print sum/NR; else print ""}' | awk '{printf "%.1f", $0}'
+        echo "$temps" | awk '{sum+=$1} END {if (NR>0) print sum/NR; else print ""}' | LC_ALL=C awk '{printf "%.1f", $0}'
     fi
 }