diff --git a/README.md b/README.md
index 45c2433..3b18372 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,20 @@ deb http://apt.internal.cubetiqs.com/ubuntu focal-security universe
 deb http://apt.internal.cubetiqs.com/ubuntu focal-security multiverse
 ```
 
+**Mirror Internal DNS**
+```shell
+deb http://apt.mirrors.cubetiqhost.net/ubuntu focal main restricted
+deb http://apt.mirrors.cubetiqhost.net/ubuntu focal-updates main restricted
+deb http://apt.mirrors.cubetiqhost.net/ubuntu focal universe
+deb http://apt.mirrors.cubetiqhost.net/ubuntu focal-updates universe
+deb http://apt.mirrors.cubetiqhost.net/ubuntu focal multiverse
+deb http://apt.mirrors.cubetiqhost.net/ubuntu focal-updates multiverse
+deb http://apt.mirrors.cubetiqhost.net/ubuntu focal-backports main restricted universe multiverse
+deb http://apt.mirrors.cubetiqhost.net/ubuntu focal-security main restricted
+deb http://apt.mirrors.cubetiqhost.net/ubuntu focal-security universe
+deb http://apt.mirrors.cubetiqhost.net/ubuntu focal-security multiverse
+```
+
 - Change the version of Ubuntu
 ```shell
 UBUNTU_VERSION=$(lsb_release -cs)