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IT

Docker Containers by examples – Intro

  • stefano
  • Posted on 1st November 2020
  • No Comments

Intro This article is the first of a series that I called "Docker containers by examples" where I am sharing my experience in learning and using Docker in real life…

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IT

GNU/Linux Automatic Security updates with cron-apt and e-mail notifications (msmtp)

  • stefano
  • Posted on 1st March 2020
  • No Comments

Everytime I build a new server one of the feature that I immediately configure is to install security update automatically for the Operating System and installed pakckages. In Debian you…

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IT

[LinuxAdmin] E-mail with Push notifications with fetchmail

  • stefano
  • Posted on 10th August 2019
  • No Comments

I have several e-mail accounts that are managed from a single server. The way they are managed consists in having fetchmail retrieving (fetching, indeed) every configured amount of seconds. Of…

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IT

[HowTo] Automated VPS backup from NAS Qnap

  • stefano
  • Posted on 23rd June 2019
  • No Comments

Yet another small how-to that will work mainly as a way for myself to remember how I did setup a QNAP NAS Appliance to use rsync with ssh and make…

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Linux Admin

[HowTo] Install Coreboot and disable Intel ME on Lenovo Thinkpad X230

  • stefano
  • Posted on 8th June 2019
  • 2 Comments

I have been promising to myself for very long time that one day I had to have a computer as much privacy focused as possible. As I cannot afford to…

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CryptoCurrencies

[How To] Monero (XMR) Wallet with Trezor Model T

  • stefano
  • Posted on 22nd May 2019
  • 2 Comments

Recently the GitHub user ph4r05 released some commits for the Monero wallet GUI that enabled the use of Trezor Model T with the Monero cryptocurrency (XMR). As the commits are…

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IT

[SysAdmin] Create isolated WiFi network on OPNSense with local wireless interface

  • stefano
  • Posted on 20th July 2018
  • No Comments

During the last months I am using OPNSense as my firewall (moving away from PFSense). At the very beginning I was using it on an apu2d board but then I…

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Linux Admin

Configure OpenVSwitch and libvirt to enable trunking (802.1q) between KVM Guests

  • stefano
  • Posted on 8th January 2017
  • No Comments

The goal of this article is to cover a complete configuration of OpenVSwitch and KVM networking to have ports of the virtual switch allowing trunking toward the KVM guests. The…

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OSPF topology
Cisco

[Networking Lab] GNS3 Lab to practice with OSPF LSA types and areas (TCP/IP Volume I)

  • stefano
  • Posted on 2nd April 2016
  • 3 Comments

Here we go with another Lab with GNS3 and IOU. This time is to review and practice the OSPF configurations as well as LSA types, Areas, routing table, virtual links…

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GNS3 - RIP and RIPng TCP/IP Volume 1 Topology
Cisco

[Networking Lab] RIP and RIPng configuration exercise (TCP/IP Volume 1)

  • stefano
  • Posted on 19th March 2016
  • No Comments

Hi there! Yet another GNS3 laboratory for a bit of practice. This time I arranged the starting configuration to play with RIP and RIPng following the exercise found on TCP/IP…

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TCP_IPVol1_Chap3_exer3_GNS3_topo
Cisco

[Networking Lab] Static route and load sharing practising (TCP/IP Volume 1)

  • stefano
  • Posted on 13th March 2016
  • No Comments

This GNS3 laboratory is a simple reproduction of the Configuration exercise number 3 of Chapter 3 (static routing) of the well known book TCP/IP Volume 1 for the CCIE professional…

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IT

[Networking] Select a mask so that there will be a specific number of subnets and hosts available

  • stefano
  • Posted on 11th March 2016
  • No Comments

This is mainly a reminder for myself and for who is working with subnetting and with the always arising question about how to work with subnets design. The question to…

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Linux Admin

[Linux server] How to update DNS entries from DHCP to BIND9

  • stefano
  • Posted on 22nd November 2015
  • No Comments

After talking about this topic with a friend during last week, I decided to start running a local DNS server in my home network. The goals of the server are:…

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GNS3 802.1x Topology
Cisco

[Networking Lab] Configure 802.1x authentication on Cisco switch IOU with GNS3

  • stefano
  • Posted on 20th September 2015
  • 12 Comments

In this post I will show you again the power of GNS3 in doing laboratories to test new features. I will provide you a Lab example to configure and test…

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GNS3 ready to use
GNS3

[Networking – Lab] Ready-to-go GNS3 Switch and Routers config for your lab.

  • stefano
  • Posted on 23rd May 2015
  • No Comments

A lot of times, when you would like to reproduce some behavior in a Network, you need to add a lot of basic configs on your routers and switches. You…

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Stefano’s Blog

about me

I love to communicate and to share my knowledge following the examples of Free Software and Open Source communities. In this blog I talk about technologies I play with and experiences with GNU/Linux, Networking (Cisco as first), new technologies and much more. I have technical and management experience with Networking, Security (Cisco, Juniper, Palo Alto, Pulse Secure) as well as GNU/Linux. I can help your Company growing and making changes and impacts in IT thanks to my work experience in the field with big enterprises. Contact me now for a free discussion!

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Stefano LaguardiaFollow

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Retweet on TwitterStefano Laguardia Retweeted
9 Apr 2021

"Se dovessi reincarnarmi vorrei essere un virus letale per eliminare la sovrappopolazione, la crescita dell’uomo è la più grave minaccia per il Pianeta."
(#PrincipeFilippo, 1988)
❤️

Reply on Twitter 1380559262376718339Retweet on Twitter 1380559262376718339132Like on Twitter 13805592623767183391577
26 Feb 2021

Let's see how it goes with #DeFi

$POLS $BLANK

BlockWallet 🔲@GetBlockWallet

The moment we've been waiting for is here! The @polkastarter $POLS whitelist is open and ready for submissions! 🖊️

Please follow the instructions and complete every step described in the post.

Join $BLANK or the chance might go by in a blink. 👁️

https://t.co/Jte7goSp5D

Reply on Twitter 1365410872751972354Retweet on Twitter 1365410872751972354Like on Twitter 1365410872751972354
Retweet on TwitterStefano Laguardia Retweeted
28 Jan 2021

https://t.co/R527t5mmNp pwned by @evilsocket!

🤪

Reply on Twitter 1354909605990686721Retweet on Twitter 13549096059906867214Like on Twitter 135490960599068672119
8 Jan 2021

Hey @LogitechG, do you have control quality over official warranty claims? I have an almost new MX2s mouse where the scroll is blocked to freewheel only (very annoying) and "https://t.co/7NWdjvuRp8" told me "no issue" sending me back a non working mouse!

Reply on Twitter 1347591412284608513Retweet on Twitter 13475914122846085131Like on Twitter 13475914122846085131
Retweet on TwitterStefano Laguardia Retweeted
18 Dec 2020

Hotfix 20.7.7_1 is now live. HTTP redirect is automatically fixed after update.

Reply on Twitter 1339903097485856768Retweet on Twitter 133990309748585676811Like on Twitter 133990309748585676851
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