Why Production servers shouldn’t have external interfaces

Read the Disclaimer People sometimes want to use their application servers as firewalls. This seems attractive at first glance: slap in another network card, add some packet filtering, tighten the system down a bit and connect it to the outside world. Cheap and quick, but a very bad idea.

Linux Logical Volume Manager (LVM) on Software RAID

Read the Disclaimer Logical Volume Manager is now included with most Linux distributions. The RedHat 8.0 installer even allows you to create LVM volumes during initial install. LVM offers capabilities previously only found in expensive products like Veritas.

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