diff --git a/home/base/desktop/ssh.nix b/home/base/desktop/ssh.nix
index c46d1362..8316726d 100644
--- a/home/base/desktop/ssh.nix
+++ b/home/base/desktop/ssh.nix
@@ -4,12 +4,12 @@
   programs.ssh = {
     enable = true;
 
-    # all my ssh private key are generated by `ssh-keygen -t ed25519 -C "ryan@nickname"`
-    # the config's format:
+    # All my ssh private key are generated by `ssh-keygen -t ed25519 -a 256 -C "xxx@xxx"`
+    # Config format:
     #   Host —  given the pattern used to match against the host name given on the command line.
     #   HostName — specify nickname or abbreviation for host
     #   IdentityFile — the location of your SSH key authentication file for the account.
-    # format in details:
+    # Format in details:
     #   https://www.ssh.com/academy/ssh/config
     extraConfig = ''
       # a private key that is used during authentication will be added to ssh-agent if it is running
@@ -36,18 +36,6 @@
       Host s500plus
         HostName 192.168.5.174
         Port 22
-
-      Host k8s-main
-        HostName 192.168.5.181
-        ForwardAgent yes
-
-      Host k8s-data1
-        HostName 192.168.5.182
-        ForwardAgent yes
-
-      Host k8s-data2
-        HostName 192.168.5.183
-        ForwardAgent yes
     '';
   };
 }