diff --git a/README-zh.md b/README-zh.md
index 1a842ce..35d07e2 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -109,7 +109,7 @@ sudo sh vpnsetup_centos.sh
 
 **Android 6 (Marshmallow) 用户** 请参考此文档中的注释： <a href="docs/clients-zh.md#android" target="_blank">配置 IPsec/L2TP VPN 客户端</a>。
 
-在 VPN 已连接时，客户端配置为使用 <a href="https://developers.google.com/speed/public-dns/" target="_blank">Google Public DNS</a>。此设置可通过编辑文件 `options.xl2tpd` 和 `ipsec.conf` 来更改。
+在 VPN 已连接时，客户端配置为使用 <a href="https://developers.google.com/speed/public-dns/" target="_blank">Google Public DNS</a>。如果要使用另外的 DNS 服务商，可以编辑文件 `options.xl2tpd` 和 `ipsec.conf` 并用新的服务器替换 `8.8.8.8` 和 `8.8.4.4`。然后重启 `ipsec` 和 `xl2tpd` 服务。
 
 如果服务器配置了自定义 SSH 端口（不是 22）或其他服务，请在运行脚本前编辑 <a href="vpnsetup.sh#L336" target="_blank">IPTables 防火墙规则</a>。
 
diff --git a/README.md b/README.md
index e56588a..675a8d2 100644
--- a/README.md
+++ b/README.md
@@ -109,7 +109,7 @@ For **Windows users**, a <a href="docs/clients.md#regkey" target="_blank">one-ti
 
 **Android 6 (Marshmallow) users**： Please see notes in <a href="docs/clients.md#android" target="_blank">Configure IPsec/L2TP VPN Clients</a>.
 
-Clients are set to use <a href="https://developers.google.com/speed/public-dns/" target="_blank">Google Public DNS</a> when the VPN is active. To change, edit `options.xl2tpd` and `ipsec.conf`.
+Clients are set to use <a href="https://developers.google.com/speed/public-dns/" target="_blank">Google Public DNS</a> when the VPN is active. If another DNS provider is preferred, replace `8.8.8.8` and `8.8.4.4` in both `options.xl2tpd` and `ipsec.conf` with your new servers. Then restart `ipsec` and `xl2tpd` services.
 
 For servers with a custom SSH port (not 22) or other services, edit the <a href="vpnsetup.sh#L336" target="_blank">IPTables rules</a> before using.