diff --git a/back_end/saolei/default.conf b/back_end/saolei/default.conf
index b05322d..4502902 100644
--- a/back_end/saolei/default.conf
+++ b/back_end/saolei/default.conf
@@ -6,8 +6,15 @@ server {
     # 配置为你自己服务器的ip地址
     server_name  fff666.top;
 
-    rewrite ^(.*) https://$server_name$1 permanent; 
-    
+    # 给acme放行
+    location ~ "^/\.well-known/acme-challenge/([-_a-zA-Z0-9]+)$" {
+      default_type text/plain;
+      return 200 "xxx";
+    }
+    location  / {
+      rewrite ^(.*)$ https://${server_name}$1 permanent;
+    }
+
     #charset koi8-r;
     #access_log  /var/log/nginx/host.access.log  main;
 
@@ -78,15 +85,11 @@ server {
 }
 
 
+# acme重新安装证书步骤：
+# acme一般是自动更新，假如没有更新则：
+# （1）acme.sh --upgrade --auto-upgrade
+# （2）acme.sh --issue -d fff666.top --nginx --debug
+# （3）acme.sh --install-cert -d fff666.top --key-file /etc/nginx/conf.d/key.pem --fullchain-file /etc/nginx/conf.d/cert.pem --reloadcmd "nginx -s reload"
 
 
 
-
-
-
-
-
-
-
-# acme更新用
-# acme.sh --install-cert -d fff666.top --key-file /etc/nginx/conf.d/key.pem --fullchain-file /etc/nginx/conf.d/cert.pem --reloadcmd "nginx -s reload"