How can I disable the creation of core files in Linux?
In order to disable core files generation across the whole machine in operating system level, You can use machine's /etc/profile file.
The file is specifies a core file size limit.
It should be set to "0" and redirected to /dev/null.
You should have a line similar to the followin in the file:
# No core files by default
ulimit -S -c 0 > /dev/null 2>&1