Calin

Author Archives: Calin

Linux For Network Engineers (LFNE) – AlmaLinux & Alpine Editions

After the release of the Ubuntu 24.04 edition of Linux For Network Engineers (LFNE) I’ve got some questions from the community. Here are two new flavors of LFNE based on your requests. LFNE AlmaLinux 10 OS For Red Hat fans who prefer a RHEL-style environment. Since CentOS is no longer maintained, AlmaLinux is the closest […]

<p>The post Linux For Network Engineers (LFNE) – AlmaLinux & Alpine Editions first appeared on IPNET.</p>

Linux For Network Engineers (LFNE) – Now on Ubuntu 24.04

The Linux For Network Engineers (LFNE) Docker container has been refreshed and is now built on Ubuntu 24.04 LTS. For those new to it, LFNE is a ready-to-use Linux environment preloaded with the most popular tools used by network engineers—from packet capture and traffic analysis utilities to configuration helpers and scripting support. Instead of spending […]

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Testing Arista AVD with GNS3 and EOS

Arista AVD (Architect, Validate, Deploy) – https://avd.arista.com – is a powerful tool that brings network architecture into the world of Infrastructure-as-Code. I wanted to try it out in a lab setting and see how it works in a non-standard environment. Since my go-to lab tool is GNS3 with Arista cEOS images — while the AVD […]

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Deploying ELK Stack with Docker Compose (2025 Edition)

This guide walks you through installing and configuring the ELK Stack (Elasticsearch, Logstash, Kibana, and Filebeat) using Docker Compose. It is fully updated for Elasticsearch 9.0.2 and explains the necessary changes for versions 8+ and above, including the required security setup and user permissions. Prerequisites Ensure you have the following installed on your system: The […]

<p>The post Deploying ELK Stack with Docker Compose (2025 Edition) first appeared on IPNET.</p>

phpIPAM in Docker with Nginx reverse-proxy

I have a bit of a problem with this setup serving phpIPAM via Nginx reverse proxy, so I said to share the solution which works for me here maybe will help somebody out there. I installed phpIPAM as Docker container following the instructions here: https://github.com/phpipam-docker/phpipam-docker. Using it via plain http was working OK, but I […]

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Kerberos tickets on Mac OS

I’m using Mac at work and I found out that Kerberos needs sometimes a “kick” for the SSO to work properly. Sometimes after being offline the renewal of Kerberos ticket fails (especially when remote and connected via ZTA or VPN), even though everything looks alright in the “Ticket Viewer” app. Here is we where the […]

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LFNE GNS3 Appliances

This post will be a very short one, more like a note :) Based on the LFNE Docker images (explained here https://ipnet.xyz/2023/11/lfne-linux-for-network-engineers) I’ve created the GNS3 Appliances for easy import into GNS3. The GNS3 Appliances can be downloaded here https://github.com/yotis1982/lfne and imported into GNS3. Have fun!

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LFNE – Linux For Network Engineers

Formerly known as PFNE – Python For Network Engineer, the images developed to be more than just for Python learning. My choice was to call the new one more generic and pick the Linux For Network Engineers (LFNE) Linux images build with all tools need by network engineers to perform various tasks ranging from simple […]

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Ubuntu 20.04 image for EVE-NG – Python for Network Engineers

This is an identical copy of my Ubuntu 20.04 PFNE Docker image, developed to be imported and used on EVE-NG (works also on the Community edition because it doesn’t need Docker support). It contains all necessary tools for network engineers to test automation and learn Python. If you think a tool would be suitable to … Continue reading Ubuntu 20.04 image for EVE-NG – Python for Network Engineers

Ubuntu 20.04 Docker image – Python For Network Engineers

This is an updated Docker image of Python For Network Engineers (PFNE) based on Ubuntu 20.04 (minimal server distro). It contains all necessary tools for network / devops engineers to test automation and learn Python: OpensslNet-toolsIPutilsIProuteIPerfTCPDumpNMAPPython 2Python 3ParamikoNetmikoAnsiblePyntcNAPALMNetcatSocat If you notice a missing package which could be a value added for the scope of the … Continue reading Ubuntu 20.04 Docker image – Python For Network Engineers

ESXi VM – The CPU has been disabled by the guest operating system

For some weeks now, a couple of my virtual machines on ESXi would stop working out of nowhere. They were completely unresponsive (including via the ESXi VM Console). Nothing would help, except a shutdown / start of the VM. Just to find out later that, randomly, the VM would become unresponsive again. The only human … Continue reading ESXi VM – The CPU has been disabled by the guest operating system

New Ubuntu 18.04 Docker image – Python For Network Engineers

About one year ago I’ve created the Ubuntu 16.04 PFNE Docker image. It’s time for a new version of the Ubuntu PFNE Docker image to support Network engineers learn Python and test automation. Recently, Ubuntu announced that on the Ubuntu Docker Hub the 18.04 LTS version is using the minimal image. With this change when … Continue reading New Ubuntu 18.04 Docker image – Python For Network Engineers
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