Monthly Archives: May 2016

Postfix testing made easy.

Traditionally, to test the configuration of Postfix you had to install a full featured DNS server. This was due to the MX records mechanism. When you send a mail outside, the MTA (Mail Transfer Agent) sends a request to the DNS server responsible (the

Posted in RHEL7

RHEL 6.8 just released.

The RHEL 6.8 has just been released and brings the following main benefits: it enhances security by replacing openswan with libreswan as VPN endpoint solution, it makes integration with Active Directory easier through SSSD improvements (cached authentication lookup, authentication via

Posted in RHEL6

RHCSA7: Task of the day

Allowed time: 10 minutes.
Create two new user accounts "steve" and "oliver".
Create a group "team". Create a directory "shared".
All files put into the "shared" directory by "steve" or "oliver" should belong to the "team" group and be only visible by them.

RHCE7: Task of the day

Allowed time: 5 minutes.
Set up time synchronization with default configuration.

Poll for favorite RHEL 7 book

What is your favorite RHEL 7 book to prepare RHCSA & RHCE exams?

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Poll for most difficult RHCSA 7 topic

What do you think is the most difficult RHCSA 7 topic?

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Poll for most difficult RHCE 7 topic

What do you think is the most difficult RHCE 7 topic?

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