From c4417ba5399a06402e4bff3c7237176919186772 Mon Sep 17 00:00:00 2001
From: Till Brehm <tbrehm@ispconfig.org>
Date: Mon, 12 Jul 2021 07:40:40 +0000
Subject: [PATCH] Update installer_base.lib.php

---
 install/lib/installer_base.lib.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/install/lib/installer_base.lib.php b/install/lib/installer_base.lib.php
index 7fa747eecd..da50c79808 100644
--- a/install/lib/installer_base.lib.php
+++ b/install/lib/installer_base.lib.php
@@ -3003,13 +3003,13 @@ class installer_base {
 
 			// Backup existing ispserver ssl files
 			if(file_exists($ssl_crt_file) || is_link($ssl_crt_file)) {
-				rename($ssl_crt_file, $ssl_crt_file . '-temporary.bak');
+				copy($ssl_crt_file, $ssl_crt_file . '-temporary.bak');
 			}
 			if(file_exists($ssl_key_file) || is_link($ssl_key_file)) {
-				rename($ssl_key_file, $ssl_key_file . '-temporary.bak');
+				copy($ssl_key_file, $ssl_key_file . '-temporary.bak');
 			}
 			if(file_exists($ssl_pem_file) || is_link($ssl_pem_file)) {
-				rename($ssl_pem_file, $ssl_pem_file . '-temporary.bak');
+				copy($ssl_pem_file, $ssl_pem_file . '-temporary.bak');
 			}
 
 			// Attempt to use Neilpang acme.sh first, as it is now the preferred LE client
-- 
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