How do I disable coredumps on F12?

[Rick Stevens]

On 12/08/2009 03:44 PM, Andre Costa wrote:
> Hi,
>
> apps crashes are generating coredumps on /var/cache/abrt/* ; since I
> won't debug them myself and won't send them anywhere because they're too
> big, I would like to turn them off. I tried uncommenting
>
> #*               soft    core            0
>
> on /etc/security/limits.conf but it did not work, coredumps were still
> being generated.

I believe you need to reboot for that to take effect.

> Then I tried to set
>
> MaxCrashReportsSize = 0
>
> directly on /etc/abrt/abrt.conf, restarted abrtd but it didn't work
> either (oddly enough abrt-gui doesn't allow changing this setting, "ok"
> button is disabled -- not even if I run it as root).
>
> So, as a last resource I created a script on /etc/cron.daily to get rid
> of the coredumps, but I'd rather not create them in the first place.
>
> Anyone could give a hand?

Well, you should also, as root:

	echo 'fs.suid_dumpable = 0' >> /etc/sysctl.conf
	sysctl -p

That prevents suid programs from creating core files.  You should
also make sure that there is a line to the effect:

	ulimit -S -c 0 >/dev/null 2>&1

is in /etc/profile so that all users have a core file dump limit size
of 0 bytes.
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- Rick Stevens, Systems Engineer                      ricks at nerd.com -
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-                   To err is human, to moo bovine.                  -
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