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centos 5

yum Command: List The Contents (Files) Of A Package

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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Sysadmin because even developers need heroes!!!

CentOS / RHEL: Change / Copy File SELinux Security Context Command

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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RHEL / CentOS Yum Command: Blacklist Packages [ Disable Certain Packages ]

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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How do I enable EPEL (Extra Packages for Enterprise Linux) repo and install the packages under a RHEL / CentOS Linux server system?
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