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SysOps

How to suppress SSH banner

Suppress SSH banner when executing ad-hoc commands.

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SysOps

How to export every LXD instance at once

Export every LXD instance at once.

Categories
SysOps

How to use lightweight compressed cache for swap pages

Configure a lightweight compressed cache for swap pages to mitigate the performance impact of swapping on your desktop.

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SysOps

How to list file names and their contents

Use basic Linux utilities to list file names and their contents.

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SysOps

How to configure swap using zram at boot

Configure compressed swap using zram device at system boot.

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SysOps

How to use compressed RAM based block devices

Take advantage of compressed RAM based block devices to create temporary filesystems and swap disks.

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SysOps

How to fix device excluded by a filter

Fix “device excluded by a filter” LVM error.

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SysOps

How to create the simplest possible nftables firewall

Create the simplest possible firewall using nftables framework with relaxed rules that will allow all outgoing traffic, incoming ICMP echo requests, and ssh connections.

Categories
SysOps

How do display physical volumes associated with the volume group

Display physical volumes associated with the volume group.

Categories
SysOps

How to use templates inside shell scripts

Use templates inside shell scripts by substituting environment variables.