Re: wget in cron issue with dns resolution of local server

[Petr Pisar]

On Tue, Dec 17, 2019 at 03:45:57PM +0100, Álvaro Pinel Bueno wrote:
> El mar., 17 dic. 2019 a las 15:36, Tim Rühsen (<address@hidden>)
> escribió:
> 
> > are you sure that " and * are not somehow removed / expanded ?
> >
> > To test, put the wget command into a shell script and start that script
> > in the crontab. Does this make a difference ?
> >
> 
> Yes, I fact I realized this behavior using wget inside a bash script in
> crontab, I copied the wget line from the script and added isolated to
> root-cron and the behavior keep going.
> 
Isn't the unwanted resolution of a the machine hostname performed by cron (or
a sendmail command)? Cron can send an output of a job through e-mail. And by
default it sends it to the owner of the crontab at the hostname. I would
replace the wget command with something that prints to stdout and stderr and
maybe exists with a non-zero exit code to verify that.

-- Pete

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