Enable application and daemon core dumps in RHEL6

To enable core file creation for daemons:

# vi /etc/security/limits.conf
…
#* soft core 0
* soft core unlimited
…

# vi /etc/sysctl.conf
…
kernel.core_pattern = /var/cores/core-%e-%p-%t
fs.suid_dumpable = 2

kernel.core_uses_pid = 1

…

# vi /etc/sysconfig/init
…
DAEMON_COREFILE_LIMIT=’unlimited’
…

# sysctl -p

To enable core dumps for xinetd services, I just needed to install the Automatic Bug Report Tool (abrt), and start the service:

# yum install abrt-desktop

# service abrtd start