diff --git a/ssh/config b/ssh/config
index 396e470..5234867 100644
--- a/ssh/config
+++ b/ssh/config
@@ -125,10 +125,6 @@ Host idc-aliyun-sg
     HostName 47.237.137.245
     User root
 
-Host idc-aliyun-sg2
-    HostName 47.236.60.183
-    User root
-
 Host idc-yxvm
     HostName 46.3.216.77
     User root
diff --git a/ssh/idc-aliyun-sg2.pub b/ssh/idc-aliyun-sg2.pub
deleted file mode 100644
index ba9d6c4..0000000
--- a/ssh/idc-aliyun-sg2.pub
+++ /dev/null
@@ -1 +0,0 @@
-ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEPtJUHttfDb3oDGqGB9+0rFQ8Y6+GbHVC2IYMccDCpR
\ No newline at end of file