CentOS 6

Suhosin is an open source patch for PHP. How do I install suhosin under CentOS / Red Hat Enterprise Linux server running on my IBM server?

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The rpm -qi command list the files of a package. How do I use yum command to list the contents of a package under CentOS or RHEL installed on IBM server hardware?

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I‘ve created a file as follows:

ls -l -Z /etc/cron.d/vnstat
-rw-r–r–. root root system_u:object_r:system_cron_spool_t:s0 /etc/cron.d/vnstat

I’ve created a new file /etc/cron.d/vnstat.custom.interface:

ls -l -Z /etc/cron.d/vnstat.custom.interface
-rw-r–r–. root root unconfined_u:object_r:system_cron_spool_t:s0 /etc/cron.d/vnstat.custom.interface

The /etc/cron.d/vnstat is part of default vnstat package. I’ve installed my own version of the same. But, due to SELinux security cron job is not running. How do I change file SELinux security contex under RHEL / CentOS 6 Linux server to system_u:object_r:system_cron_spool_t:s0 from unconfined_u:object_r:system_cron_spool_t:s0 for /etc/cron.d/vnstat.custom.interface file?

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How do I force yum command to disable certain packages from being installed using certain repos such as EPEL under RHEL or CentOS Linux 6.x server?

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I‘m using RHEL 6 / CentOS 6.x and install the memcached server. However, whey I try to start the server using service memcached start command, I get the following error:

Starting memcached: failed to set rlimit for open files. Try running as root or requesting smaller maxconns value. [FAILED]

How do I fix this problem?

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I would like to to delete my iptables based firewall rules under Linux. How do I delete rules individually or all at once under CentOS or Fedora Linux or RHEL based servers?

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