Add support for OpenSSL 3.x for creating DH parameter.

install_nginx.sh

@@ -135,6 +135,22 @@ blank_line() {
    fi
 }
 
+get_openssl_version() {
+
+   OPENSSL_VERSION="$(openssl version|awk '{print $2}' | grep -o -E "[0-9]+\.[0-9]+\.[0-9]")"
+
+   OPENSSL_MAIN_VERSION=`echo $OPENSSL_VERSION | cut -d '.' -f1,2`
+   OPENSSL_MAJOR_VERSION=`echo $OPENSSL_VERSION | cut -d '.' -f1`
+   OPENSSL_MINOR_VERSION=`echo $OPENSSL_VERSION | cut -d '.' -f2`
+   OPENSSL_PATCH_LEVEL=`echo $OPENSSL_VERSION | cut -d '.' -f3`
+
+   if [[ -n "${OPENSSL_VERSION}" ]] ; then
+      return 0
+   else
+      return 1
+   fi
+}
+
 
 
 # ----------
@@ -230,10 +246,20 @@ done
 blank_line
 
 _failed=false
-echononl "Generate a dhparam.pem file.."
-if [[ -f "/etc/nginx/ssl/dhparam.pem" ]]; then
+if [[ ${OPENSSL_MAJOR_VERSION} -gt 1 ]]; then
+   echononl "Generate a dhparam.pem file - \033[5m\033[1mmay take a lon time\033[m .."
+   openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048 > ${log_file}  2>&1
+	if [[ $? -ne 0 ]] ; then
+		echo_failed
+		error "$(cat $log_file)"
+	else
+		echo_ok
+	fi
+elif [[ -f "/etc/nginx/ssl/dhparam.pem" ]]; then
+   echononl "Generate a dhparam.pem file .."
 	echo_skipped
 else
+   echononl "Generate a dhparam.pem file with parameter '-dsaparam'.."
 	if [[ ! -d "/etc/nginx/ssl" ]] ; then
 		mkdir /etc/nginx/ssl > ${log_file}  2>&1
 		if [[ $? -ne 0 ]] ; then