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Tux Machines
Posted by Roy Schestowitz on Jun 16, 2023
> When you access a website using its domain name, your system sends a request to a DNS server to get the IP address for that domain. This domain-IP address pair is saved in the DNS cache for later use so you don't have to send requests to the DNS server every time to make a connection.
> But sometimes, the local DNS cache gets corrupted and causes HTTP errors. Fortunately, flushing and rebuilding the DNS cache on a Linux computer is straightforward. Here's how to do it.
> Cron is one of the most useful utility that you can find in any Linux and Unix-like operating system. Cron is used to schedule commands at a specific time. These scheduled commands or tasks are known as "Cron Jobs". Cron is generally used for running scheduled backups, monitoring disk space, deleting files (for example log files) periodically which are no longer required, running system maintenance tasks and a lot more. In this Cron jobs tutorial, we will see the basic usage of Cron Jobs in Linux with examples.
> In this tutorial, we are going to explain to you in step-by-step detail how to install OpenNMS on Debian 11 OS.
> It is essential for commit message to line up with changes. What if you accidentally staged a file that was not intended for current commit?
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