issues with standard "services"

[R C]

On 6/12/21 3:23 AM, Oliver Grawert wrote:
> hi,
> Am Freitag, den 11.06.2021, 20:36 -0600 schrieb R C:
>> Hello,
>>
>>
>> I am running ubuntu 20.04 on an RPI4,  and it seems that the
>> apparmor
>> and apport services are  making a custom datalogger break/crash.
>> With
>> those disabled it seems to behave better.
>>
>> (originally the application, a data logger was running on 32 bit arm
>> centos, without any issues.)
>>
>>
>> Are there any other  services I don't need in Ubuntu, that I can
>> just
>> turn off? (as long as I can ssh in).
>>
> before dropping much of the security hardening of ubuntu by disabling
> apparmor i'd rather check how to fix your datalogger to make it work
> properly ...

well, it is a data logger for seismic data,  there's "no one on it ", 
there i nothing critically important stored on it (it is an RPI4) so I 
am not too worried about security.

Actually 'anything' I can turnof that saves cycles, I would just turn 
off., even the firewall, if needed.


> apport is the crash reporter of ubuntu, it just kicks in as a result of
> your datalogger crashing ...
>
> do you have any logs of the crashes ?
I did do a bunch of debugging, it seems that the issue is with some curl 
functions,  for some reson  the url, the hostname, seems to not resolve 
every so much time.


> ciao
> 	oli
>
thanks,


Ron