Enable logging for FTP server in 10.8

Question

Can't figure out how to enable 10.6-style logging for FTP server in 10.8. It used to be configurable via Server Admin allowing you to choose what to log and so on and the logs would go to /Library/Logs. Now I only see some irrelevant stuff in /var/log/system.log and I want to have all the transfers logged on this server. Tried setting parameters via serveradmin ftp:setting = param but it wouldn't appear in the list afterwards no matter what (just copied those off a working 10.6 server).
As a bonus, I can't figure out where the settings for logging are stored in a 10.6 server either. There's certainly not a mention of a file named FTP.transfer.log. Weird!

Answer 1

So to help anyone who finds themselves in the same boat and wants to enable ftpd logging on OSX 10.8 proper:
All operations assume root which is obtained by issuing 'sudo su' or just prefixing every command with 'sudo'.
First you edit the ftpd's launchd plist file:
pico /Applications/Server.app/Contents/ServerRoot/System/Library/LaunchDaemons/com.a pple.ftpserver.plist
Find the section titled 'ProgramArguments'. Amend it so it looks like this:
<key>ProgramArguments</key>
        <array>
                <string>ftpd</string>
                <string>-ll</string>
                <string>-r</string>
                <string>-n</string>
                <string>-d</string>
                <string>-c</string>
                <string>/Library/Server/FTP/Config</string>
                <string>-L</string>
                <string>/var/log/ftpd.log</string>
        </array>
Second you edit /etc/asl.conf. This is necessary to make '-d' (debug) switch work since by default syslog won't log any debug-level messages at all.
pico /etc/asl.conf
At the end of the file add the following:
# ftpd verbose logging
? [= Facility ftp] [<= Level debug] file /var/log/ftpdv.log
Third important step is to reboot the server. ftpd's plist configuration is cached somewhere so restarting just the ftp server alone won't work.
Now what the added switches do:
-ll enables some logging (PUT and GET commands only despite what the man pages leads you to believe) to a file specified later by -L /path/to/file
-d enables debug mode which logs everything - including server's response. May be too verbose but at least you get a log of every single command issued to the server by your clients.