Post-Install-Setup.md

@@ -11,6 +11,7 @@ root@x2fec:/$ groupadd -g 1001 controls
 root@x2fec:/$ useradd -u 1001 -s /bin/bash -m -g controls controls
 root@x2fec:/$ passwd controls
 ```
+**Note: The LIGO standard UID for controls is 1001 across all systems. Any hosts connected to the FEC should follow this standard**
 
 Add 'controls' and 'cdsadmin' user to sudo group. Create /etc/sudoers.d/users with the following: