[CentOS] Server locking up everyday around 3:30 AM

<snip>
> 
> (those commands should run the cron normally except starting at 03:00,
> where it should kick off at 3:15 instead of 03:05)
> 
> If it also fails to start at 03:15 then that would suggest that
> something is happening to the cron job the last time it is run to make
> it hang (or make the system think it is hung).
> 
I wonder if the other end has some file(s) locked for writing or other reason
and that is choking the local wget.