diff --git a/Linux_reinstall/Ubuntu/CloudInit/dhcp_interfaces.cfg b/Linux_reinstall/Ubuntu/CloudInit/dhcp_interfaces.cfg
index 3de61b6..7fc7b0b 100644
--- a/Linux_reinstall/Ubuntu/CloudInit/dhcp_interfaces.cfg
+++ b/Linux_reinstall/Ubuntu/CloudInit/dhcp_interfaces.cfg
@@ -57,6 +57,7 @@ runcmd:
   - sed -ri 's/^#?PermitRootLogin.*/PermitRootLogin yes/g' /etc/ssh/sshd_config
   - sed -ri 's/^#?PasswordAuthentication.*/PasswordAuthentication yes/g' /etc/ssh/sshd_config
   - update-rc.d ssh enable
+  - ssh-keygen -A
   - /etc/init.d/ssh restart
   - sed -i 's/#$nrconf{restart} = '"'"'i'"'"';/$nrconf{restart} = '"'"'a'"'"';/g' /etc/needrestart/needrestart.conf
   - sed -i "s/#\$nrconf{kernelhints} = -1;/\$nrconf{kernelhints} = -1;/g" /etc/needrestart/needrestart.conf