Learn how to filter iptables log messages to a separate file. Two methods are presented: one using traditional syslog and one using rsyslog.
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Safely Removing External Drives in Linux
Simply unmounting a filesystem is not the ideal way to remove an external USB/firewire/SATA drive in Linux. This tutorial explains why and gives a solution.
S.M.A.R.T. is a system in modern hard drives designed to report conditions that may indicate impending failure. smartmontools is a free software package that can monitor S.M.A.R.T. attributes and run hard drive self-tests. Although smartmontools runs on a number of platforms, I will only cover installing and configuring it on Linux.
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How to Shrink an LVM Volume Safely
Logical Volume Management is a vast improvement over standard partitioning schemes. Among many other things, it allows you to decrease the size of a volume without recreating it completely. Here’s how.