Update MFTU.md

Author: VCLanNguyen

sbn_online_wiki/ACnet/MFTU.md

@@ -11,9 +11,14 @@ The MFTU is the latest interface between the ACnet timing systems (TCLK or MIBS)
 ## Access to ACNET at SBND:
 
 `ssh sbnd-gateway03 -l sbnd`
+
 `cd ~/acnet`
+
 `source launche_acnet_console.sh`
 
+The launch script automatically ssh to outland.fnal.gov and open up the ACNET console.
+sbnd-gateway03 has the neccessary keytab to enable access. If anything changes, for example, sbnd-gateway03 is replaced with a new machine, need to contact Accelerator Divisition for an updated keytab and launch script. 
+
 ## Configuring the MFTU
 
 The MFTU configuration is performed on page E35 of an ACnet console, SBN-ND tab, pages 3 and 4.   To open a console, ssh to either outland.fnal.gov or outback.fnal.gov ACnet gateway nodes and type "cnsrun".    If you are off-site without a good internet connection, we recommend launching the console on a VNC session.  Note that VNC sessions are not allowed on outland nor outback, you will need another VNC server host.  After typing "cnsrun" in a moment several new windows will appear, like this one below.