diff --git a/README.md b/README.md
index 7f53539..4c28757 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,11 @@ We assume you have created the `steam` user to store steamcmd and your ARK serve
 ## Requirements
 Use this command to install soft requirement on your system
 ```
-apt-get install screen unzip
+# Debian based/ Ubuntu
+apt-get install screen
+
+# RHEL / CentOS / Fedora
+yum install screen
 ```
 
 Edit /etc/sysctl.conf and set:
diff --git a/tools/arkdaemon b/tools/arkdaemon
index d8e39f6..5fb27d9 100644
--- a/tools/arkdaemon
+++ b/tools/arkdaemon
@@ -9,6 +9,8 @@
 #
 ### END INIT INFO
 
+# NOTICE: this daemon can work only if your system supports start-stop-daemon
+
 # Using the lsb functions to perform the operations.
 . /lib/lsb/init-functions
 
diff --git a/tools/arkmanager b/tools/arkmanager
index 2f90b83..bc43f90 100755
--- a/tools/arkmanager
+++ b/tools/arkmanager
@@ -97,7 +97,7 @@ function isTheServerRunning(){
   return $result
 }
 
-function IsTheServerUp(){
+function isTheServerUp(){
   #
   # Check if the server is up and visible in steam server list
   # If the server is listenning on his port return 0, else return 1
@@ -219,7 +219,7 @@ printStatus(){
     echo -e "$NORMAL" "Server running:" "$RED" "No"
   fi
 
-  if IsTheServerUp ;then
+  if isTheServerUp ;then
     echo -e "$NORMAL" "Server online:" "$GREEN" " Yes"
   else
     echo -e "$NORMAL" "Server online:" "$RED" " No"