No matter if you are looking for a way to manage the iLO settings from the Linux command line or just have lost or forgotten the iLO password, as long as you have access to the Linux system running on … Continue reading
Create and merge git branches
Following the philisophy of git, branching is an essential and much used part of the development procedure. When a new feature is developed or a bigger change is to be implemented, a branch is created to work on and later … Continue reading
Posted in Version control system
Tagged branch, git, merge
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Setup LVM and create logical volume
Creating an LVM on a disc / partition allows for a lot of flexibility in managing the storage. Managing a disc using LVM consists of a number of steps, from preparing the disc itself until mounting a volume. With LVM … Continue reading
Posted in Linux Administration
Tagged logical volume, LVM
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Extend logrotate for additional log files
The Linux operating system consists of many different components. Many of them log their activity directly or indirectly into log files. Over time those log files grow and would eventually fill up the disk if there wasn’t a utility like … Continue reading
Posted in Linux Administration
Tagged logfile, logrotate
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Manage SELinux boolean policies
Configuring a new service often means dealing with SELinux. The easiest way is most of the time to set an SELinux boolean. But what are SELiunx booleans and what exactly do they do? I will try to shed a little … Continue reading
Posted in Linux Administration, Security
Tagged boolean, SELinux, semanage
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Find and extract one file from rpm package
Extracting a configuration file (or any other single file) from a package which is not installed is not a standard operation on rpm based systems, but with the following few steps, a file can be extracted without installing the package … Continue reading
Posted in Linux Administration
Tagged cpio, repoquery, rpm, rpmpeek, yum, yumdownloader
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Auditing Linux system security using lynis
Lynis is a security auditing tool for UNIX and Linux based systems. It performs a security scan on the system and provides suggestions for best practices for system hardening. The report from lynis shows a lot of suggestions to harden … Continue reading
Align a partition on a hard disk
New disks need to be prepared for use. When using a hardware raid like explained in Create hardware raid on HP via hpacucli some partitioning tools even show an error message. To prepare a disk for use, the disk needs … Continue reading
Posted in Linux Administration
Tagged align, parted, partitioning, properly aligned
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Rescue Data from corrupt SD card
SD cards are used in a variety of devices like digital cameras. Many times SD cards get removed from the devices, connected to a PC and reconnected back to the device. At some point, the SD card might be removed … Continue reading
