Articles with the tag: #software

NetFlow with Elastic-Stack

Written by Stefan on Tue 02 August 2022. Posted in Blog.

This blog post shows how to setup a NetFlow collector with Elastic-Stack, Fleet and Elastic-Agent. NetFlow data is sent by a Cisco ASA Firewall cluster.

Elastic-Stack for network engineers (Initial setup)

Written by Stefan on Sat 02 October 2021. Posted in Blog.

Switching from traditional log monitoring to Elastic-Stack is like switching from a horse-drawn carriage to the Falcon 9 rocket. Join the journey!

Cisco SSM On-Prem Upgrade procedure

Written by Stefan on Thu 16 September 2021. Posted in Blog.

This is another blog post for Cisco SSM On-Prem server where I'm showing the upgrade process.

Cisco ISE admin password lifecycle and reset

Written by Stefan on Mon 13 September 2021. Posted in Blog.

Quick notes about Cisco Identity Services Engine password lifetime and admin password reset.

Cisco SSM On-Prem password recovery procedure

Written by Stefan on Wed 08 September 2021. Posted in Blog.

For a Cisco Smart Software Manager Test Drive installation I used the older version 8-202010 and I wanted to perform an upgrade to the latest version 8-202108. And of course it is a test drive, I did not save or wrote down the password :). In this document I'm describing how to perform a password recovery for a Cisco SSM On-Prem installation.

Upgrading Netbox to Version 3.0

Written by Stefan on Tue 31 August 2021. Posted in Blog.

Yesterday, the version v3.0 of Netbox was released. Modernized WebUI and Off-canvas sidebar. My first impression: Version v3.0 is awesome! Note: Version v3.0.1 was released on 2021-09-01.

Gitlab AD-LDAP Integration

Written by Stefan on Thu 26 August 2021. Posted in Blog.

In this blog post I'm showing how to integrate GitLab Server with a Samba-based Active Directory.

Some security settings for Apache Web Server

Written by Stefan on Sun 06 June 2021. Posted in Blog.

I'm showing in this blog post some security settings for the Apache web server including disabling of Directory Browsing, Server Signature and Server Token.

Integration of Nextbox UI Topology Viewer in Netbox

Written by Stefan on Sun 16 May 2021. Posted in Blog.

In this blog post I'm showing how to integrate NextBox UI Plugin into my Netbox installation. NextBox UI Plugin is a topology visualization plugin which is based on Cisco's neXt toolkit.

Netbox Active Directory/LDAP Integration

Written by Stefan on Fri 30 April 2021. Posted in Blog.

In my newest blog post I show how to setup Netbox with Active Directory as backend for users and groups.

Concept for DNS security with Bind9, Pi-hole and OpenDNS

Written by Stefan on Sun 18 April 2021. Posted in Blog.

This is my new concept for DNS security with Bind9, Pi-hole and OpenDNS in my network. Bind9 is used as Enterprise DNS to resolve hostnames and IP addresses in the local area network, Pi-hole and OpenDNS are used for Internet DNS traffic. DNS traffic is passed by Cisco ASA Firewall ACL.

Blocking of Google Chrome FLoC

Written by Stefan on Mon 12 April 2021. Posted in Blog.

Blocking of Google Chrome FLoC (Federated Learning of Cohorts) on my web server

Check in of configuration files to a Gitlab server

Written by Stefan on Mon 08 March 2021. Posted in blog.

This is the third part of a series of blog posts about Cisco configuration backup with Netbox and Gitlab. This blog post covers the check in of configuration files to a Gitlab server

Low Level Device functions for backup with Netbox and Gitlab

Written by Stefan on Wed 03 March 2021. Posted in blog.

This is the second part of a series of blog posts about Cisco configuration backup with Netbox and Gitlab. This blog post covers the low level functions to connect to network devices with pexpect.

Cisco configuration backup with Netbox and Gitlab

Written by Stefan on Mon 01 March 2021. Posted in blog.

This is the first part of a series of blog posts about Cisco configuration backup with Netbox and Gitlab. It covers the connection to the Netbox API and to get the data of network devices with the pynetbox filter function.

Cisco Smart Software Manager Test Drive

Written by Stefan on Mon 01 February 2021. Posted in Blog.

Cisco Smart Software Manager (SSM) On-Prem Test Drive installation, Virtual Machine setup and first steps in the Web UI

Looking up asset tags in Snipe-IT with QR code

Written by Stefan on Sat 24 October 2020. Posted in blog.

The blog post shows a Python script which can look up an Asset tag in Snipe-IT with a generated QR code

Installing Gitlab on Debian Linux

Written by Stefan on Sat 05 September 2020. Posted in blog.

Installing Gitlab on Debian Linux and connecting with Atom editor

Netbox Login failed after upgrade to version 2.9.0

Written by Stefan on Sun 23 August 2020. Posted in blog.

After an upgrade to the new released version 2.9.0 of NetBox the Login failed with Server Error (Missing required package/WSGI service not restarted after upgrade)

Netbox Custom Links for Snipe-IT and LibreNMS

Written by Stefan on Fri 14 August 2020. Posted in blog.

Python scripts with API calls as Custom Links for Snipe-IT and LibreNMS.

Custom links in Netbox for Snipe-IT Asset Management

Written by Stefan on Sat 01 August 2020. Posted in blog.

Integration of Snipe-IT Asset Management into Netbox DCIM/IPAM as Custom Link with a PHP script and using Snipe-IT API call.

Moving my website to Pelican (Static Site Generator)

Written by Stefan on Sat 18 July 2020. Posted in blog.

Moving my website to Pelican (Static Site Generator) with introduction to my toolchain, tricks for development, pelican-plugins used on my website and design changes and other improvements

Upgrading XCP-NG Hypervisor from version 7.6 to version 8.1

Written by Stefan on Sun 14 June 2020. Posted in blog.

Upgrading XCP-NG Hypervisor from version 7.6 to 8.1 remotely over VPN connection and KVM. Fixing IPTables and SNMP configuration for monitoring system.

Netbox: New installation (2.8.5) and NAPALM plus LibreNMS API integration

Written by Stefan on Thu 11 June 2020. Posted in blog.

This is the third part of a series of blog posts covering my new netbox installation. This part shows how to integrate NAPALM and Graphs on device Interfaces from the Monitoring system LibreNMS.

Netbox: New installation (2.8.5) and cabling and assigning IP addresses

Written by Stefan on Sun 07 June 2020. Posted in blog.

This is the second part of a series of blog posts covering my new netbox installation. The rack is filled up with the rest of the hardware and each network port is getting cabled. This part contains also IPAM (IP Address Management) and handling of Provider and Circuits.

Netbox: New installation (2.8.5) and filling up an empty rack

Written by Stefan on Mon 01 June 2020. Posted in blog.

This is the first part of a series of blog posts covering my new netbox installation. It covers the defining of manufacturers, device types, power panels and power feeds. An UPS, Power Strips and two Cisco switches are added including their Power cabling. As bonus, the Cisco switches are build as Virtual Chassis (Cisco Switch-stack).

Simple High Availability with CARP

Written by Stefan on Wed 05 February 2020. Posted in blog.

Simple High Availability with CARP (Common Address Redundancy Protocol)

Simple load balancing with Apache proxy_balancer

Written by Stefan on Tue 17 December 2019. Posted in Blog.

Simple load balancing with Apache proxy_balancer and testing with siege

NetBox, Snipe-It and LibreNMS

Written by Stefan on Sat 28 September 2019. Posted in Blog.

NetBox, Snipe-It and LibreNMS: Three tools for Data Center Information Management (DCIM), IT Asset Management (ITAM) and Network Monitoring System (NMS).