Ansible Custom Action Plugins
Introduction Motivation Where to place Action Plugins Role or Collection scope ...
Post tagged: storage
Ansible Custom Modules
Intro What is a module Where to store modules Inside a Role ...
Deploying your CA's root certificate
Linux Windows 10 iOS 14 Authenticating clients Authenticating clients with nginx ...
Using the Github Container Registry
Initialization Basic env variables Job declaration Steps ...
Using Excel files from Python
Intro XlsxWriter openpyxl xlwings pywin32 ...
Using Podman on Alpine Linux
Introduction What is Podman? Installation on Alpine Linux Rootful vs Rootless ...
Stretch Cluster notes
Clustering Stretched Clusters Calculating latencies Common storage stretched clusters ...
Filesystem discard
Now with the prevalence of SSD's for storage, it is important to make sure that the DISCARD operation is used. This is specially true as this can increase the lifetime of your flash storage by reducing the need to re-map blocks by simply marking them as freed. ...
Python development tips 2024
Local install packages Better debugging Built-in exceptions Adding site specific customizations Constants ...
Telekom Cloud CI/CD demo
Pre-requisites Preparation Base infrastructure Notes ...
Raspberry Pi emulation with Qemu
The idea here is that we use a Desktop PC for developing/debugging Raspberry Pi set-ups using qemu for emulating Rasperrby Pi. qemu currently supports the following configurations: Raspberry Pi Zero and 1A+ (armhf) Raspberry Pi 2B (armv7) ...
voidlinux virtualization
This recipe is for setting virtualization on a voidlinux desktop. Use this setup script to set things up on void linux. Connecting to libvirtd Note that virsh and virt-manager commands connect to different libvirtd sessions by defauult. virsh defaults to qemu:///session while virt-manager to qemu:///system. ...
Secure erase of disc drives
This article is about erasing disc drives securely. Specially for SSD drives, writing zeros or random data to discs is not good enough and counterproductive. One way to do secure erase (for disposal) is to begin with an encrypted disc. However, after the fact the following options are possible: ATA Secure Erase ...
using cachefiles on an Linux NFS share
If you often mount and access a remote NFS share on your system, you will probably want to know how to improve NFS file access performance. One possibility is using file caching. In Linux, there is a caching filesystem called FS-Cache which enables file caching for network file systems such as NFS. FS-Cache is built into the Linux kernel 2.6.30 and higher. ...
Telegram
Telegram is a messenger designed to overcome the limitations of other messengers like WhatsApp or similar ones. It is different and better than other messengers on more than one level. A few of the important features that make it stand out among other messengers are: ...
CyberWorld 2017.1
Development travis cordova build ...
Side Load apps on Android TV
So we bough a Philips 50PFK6540. This is a 50" TV with Ambi Ligh and Android TV. One of the things I wanted to do from the very start was to load my own APKs. This was not possible until a recent (2016) update that enabled the "Install from Unknown Sources" setting option. ...
Hosting WordPress on OpenShift
So I finally moved my WordPress web sites to OpenShift. OpenShift is a cloud based Platform-as-a-Service offering from RedHat. And while there is a learning curve I would say that so far it works great. My implementation is a fully cloud based solution. Makes use of the following services: GitHub for code hosting ...
Windows administration from the command line
Windows system administration is very mouse driven and to reach all tools you need to browse through Windows explorer. If you are like me and prefer to log on a limited privilege account and use Runas to perform admin tasks, you can open these consoles with the .msc file names. Here is a list of admin tools with their .msc file names. domain.msc: AD Domains and Trusts ...
RPMGOT
Software package download proxy rpmgot is a simple/lightweight software package download proxy. It was designed to run on an OpenWRT router with some USB storage. So it is fully implemented as an ash script. The basic idea has been implemented multiple times. For example refer to this article on a squid based implementation. Unlike squid, which once you include all its dependencies can use up over 1MB of space just to install it, this software has very few dependencies. The idea is for small developers running the same operating system version(s) would benefit from a local mirror of them, but they don't have so many systems that it's actually reasonable for them to run a full mirror, which would entail rsyncing a bunch of content daily, much of which may be packages would never be used. rpmgot implements a lazy mirror something that would appear to its client systems as a full mirror, but would act more as a proxy. When a client installed a particular version of a particular package for the first time, it would go fetch them from a "real" mirror, and then cache it for a long time. Subsequent requests for the same package from the "mirror" would be served from cache. ...
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