Monthly Archives: August 2015

Time to play with SSL certificates.

Until recently, SSL certificates were so expensive that you couldn’t set up your personal website only for fun. You had to have a good reason or a big wallet. This is not the case anymore. Now and until the letsencrypt.org

Posted in RHEL7

KVM thin provisioning tip.

If you use KVM for managing your virtual machines, you can sometimes run out of space in the /var/lib/libvirt/images directory, the default location for the RHEL/CentOS distributions. Because KVM knows the concept of thin provisioning through the qcow2 image format, the

Posted in RHEL7

RHEL Disk tip.

During the RHCSA exam, you need to go fast. When dealing with partition creation, you can’t afford to waste time, searching for information about the current configuration with almost obsolete command like fdisk -l displaying a very cryptic and mostly

Posted in RHEL7

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RHCSA7: Task of the day

Allowed time: 5 minutes.
Configure a cron task to write the uptime at 2PM every day.

RHCE7: Task of the day

Allowed time: 10 minutes.
Set up a caching-only DNS server to forward DNS queries.

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Poll for favorite RHEL 7 book

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Poll for most difficult RHCSA 7 topic

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Poll for most difficult RHCE 7 topic

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