log_in_vain="YES"

[Didier WIROTH]

When using log_in_vain="YES" I get a lot of console message of these types:
Jan 21 03:01:12 ultimate kernel: Connection attempt to TCP 127.0.0.1:113
from 127.0.0.1:49188 flags:0x02
Jan 21 03:01:12 ultimate kernel: Connection attempt to TCP 127.0.0.1:113
from 127.0.0.1:49190 flags:0x02
Jan 21 03:01:12 ultimate kernel: Connection attempt to UDP 127.0.0.1:512
from 127.0.0.1:49286
Jan 21 03:01:12 ultimate kernel: Connection attempt to UDP 127.0.0.1:512
from 127.0.0.1:49287

I assume the above entries happen when the cron jobs, auth and sendmail
tries to send the daily reports. 

What does log_in_vain actually do/work? Is it possible to tell log_in_vain
to ignore connections form localhost to localhost?

Many thanks
Didier