diff --git a/openvpn-install.sh b/openvpn-install.sh
index b39e795..20f593b 100644
--- a/openvpn-install.sh
+++ b/openvpn-install.sh
@@ -30,9 +30,13 @@ elif [[ -e /etc/debian_version ]]; then
 	os="debian"
 	os_version=$(grep -oE '[0-9]+' /etc/debian_version | head -1)
 	group_name="nogroup"
-elif [[ -e /etc/almalinux-release || -e /etc/rocky-release || -e /etc/centos-release ]]; then
+elif [[ -e /etc/almalinux-release || -e /etc/rocky-release || -e /etc/centos-release || -e  /etc/redhat-release  ]]; then
 	os="centos"
-	os_version=$(grep -shoE '[0-9]+' /etc/almalinux-release /etc/rocky-release /etc/centos-release | head -1)
+	os_version=$(grep -shoE '[0-9]+' /etc/almalinux-release /etc/rocky-release /etc/centos-release /etc/redhat-release | head -1)
+	group_name="nobody"
+elif [[ -e /etc/redhat-release  ]]; then
+	os="redhat"
+	os_version=$(grep -shoE '[0-9]+' /etc/redhat-release | head -1)
 	group_name="nobody"
 elif [[ -e /etc/fedora-release ]]; then
 	os="fedora"
@@ -62,6 +66,12 @@ This version of CentOS is too old and unsupported."
 	exit
 fi
 
+if [[ "$os" == "RedHat" && "$os_version" -lt 7 ]]; then
+	echo "RedHat 7 or higher is required to use this installer.
+This version of RedHat is too old and unsupported."
+	exit
+fi
+
 # Detect environments where $PATH does not include the sbin directories
 if ! grep -q sbin <<< "$PATH"; then
 	echo '$PATH does not include sbin. Try using "su -" instead of "su".'
@@ -73,6 +83,16 @@ if [[ "$EUID" -ne 0 ]]; then
 	exit
 fi
 
+
+if [[ "`sudo rpm -ql epel-release`" == "package epel-release is not installed" ]]; then
+	echo "EPEL is not installed, please install EPEL"
+	echo "For RedHat 8.x: https://linuxconfig.org/redhat-8-epel-install-guide"
+	echo "For RedHat 7.x: https://www.unixmen.com/install-epel-repository-centos-rhel-7/"
+	echo "or search by your self :D" 
+	exit
+fi 
+
+
 if [[ ! -e /dev/net/tun ]] || ! ( exec 7<>/dev/net/tun ) 2>/dev/null; then
 	echo "The system does not have the TUN device available.
 TUN needs to be enabled before running this installer."