In a DNS setup, having a slave server ensures redundancy, load balancing, and high availability. This guide will walk you through setting up a slave…
Linux cheat sheet
Category: Windows
Debian users may sometimes encounter a slow boot issue or a “No matching swap device is available” error, particularly after resizing partitions. This problem often…
In today’s dynamic IT landscape, effective database monitoring is a cornerstone of maintaining optimal performance, preemptively identifying issues, and ensuring overall system health. Prometheus, an…
And so, we need to build the following model: * Docker Swarm manager with 3 swarm nodes running docker graphHoppers and on the top of…
Create a new file, curl-format.txt, and paste in: time_namelookup: %{time_namelookup}s\n time_connect: %{time_connect}s\n time_appconnect: %{time_appconnect}s\n time_pretransfer: %{time_pretransfer}s\n time_redirect: %{time_redirect}s\n time_starttransfer: %{time_starttransfer}s\n ———-\n time_total: %{time_total}s\n time_namelookup: %{time_namelookup}s\n…
Updated October 2026. The 2021 version of this post installed Jenkins with apt-key and Java 11, built images in a Freestyle job and wiped the…
A way to get your code deployed to the production server Webhook allows to automatically retrieve the newest code any time a push is performed…
In this tutorial, it is described how to configure Hard Disk Sentinel to create and automatically update an XML file which contains all detected status…
On Linux you can use dd to make a backup from SD card. Reverse if and of (i.e. to where they point – source and destination) afterwards to restore, but…
I faced an unexpected problem a long time ago after installing and configuring windows server 2012 r2. Installed and activated the licensing server. Everything worked…