You'll need an SSH client to connect to your compute tier and your mid-tier, and you'll need a user account that has permission to log in directly to those servers and with permission to the log files. The primary CI log file is "CustIntelCore6.5.log" on the mid-tier (under your config directory, it will be in Lev1/Web/Logs/SASServer6_1).
Alternatively, you may want to ask your IT department about exposing the log directories as a samba share so you can map to it as a Windows shared drive.