From the course: Linux Hardening

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General handling of services, part two

General handling of services, part two - Linux Tutorial

From the course: Linux Hardening

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General handling of services, part two

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Welcome back to Cybrary's Linux Hardening course. This lesson covers more best practices in terms of the handling of services. I'm your instructor, Corey Holzer. Let's go. There are three learning objectives for this lesson. First, we'll discuss the matter of securing cron jobs. Second, we'll look at the configuring of shell timeouts. Third, we're going to look at the usefulness of banners. If you're unfamiliar with cron jobs, as the name implies, these are scripts that are configured to run at set times. Whether daily, weekly, or monthly, the sole purpose of the cron daemon is to watch the clock and run scripts at predetermined times. By default, anyone can submit a cron job to the daemon, and the script will run as if the user was sitting at the keyboard executing the commands. This is a very useful functionality, but it can be used for destructive or vindictive purposes. Let's say a developer's disgruntled because he didn't get the promotion he believed he deserved. He could…

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