technology
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Like To Go Shopping When You’re Hungry
How do you use social media? Social media is like fire or like credit cards. If you don’t have control over them, addiction and disaster are guaranteed. However, if used intelligently, they can become an important tool for growth, education,… Continue reading
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From Pagers to AI
How has technology changed your job? I started working in IT in the mid‑90s, when cell phones still hadn’t reached every social group. Back then, field technicians used pagers. When we received a message, we had to find the nearest… Continue reading
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IA for Everyone
The most important invention in your lifetime is… In my 50 years of life, there have been many technological advances that have radically changed people’s lives. From the PC, the Internet, and cell phones, I believe the most important invention… Continue reading
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My Old Aptiva
Write about your first computer. I remember that my first computer was an IBM Aptiva M486 from 1995. This model came with an Intel 486 processor (before the Pentium era), 4MB of RAM, and a 500MB hard drive. It was… Continue reading
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What Retirement Looks Like Without Computers
Your life without a computer: what does it look like? For someone who spends 8 hours a day in front of a computer, imagining a life without one feels unimaginable. It’s akin to imagining retirement. Because of my job, I… Continue reading
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Setting Up OPNsense as a Load Balancer
In this post, we’re going to setup OPNsense as a Layer 4 and Layer 7 HAPROXY load balancer. This is our network topology: In this simple topology, we have a single firewall with two ISPs connections and a LAN. We’re… Continue reading
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Setting Up a Redundant Load Balancer with HAPROXY and KeepAlived
In this post we will setup a high redundant load balancer with two HAPROXY and KeepAlived service on Linux Servers. HAPROXY is one of the most implemented open source Layer 4 or 7 load balancer. It’s hosted between the clients… Continue reading
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Configure Redundant OPNsense IPsec Tunnels with BGP Between Two Sites (Part 2)
In the second part of this lab, we’ll set up the Site Firewalls. Each will have 2 WAN connections to different ISPs. Then we’ll set up four IPsec tunnels and BGP routing. This setup will guarantee a full redundant connection… Continue reading
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Configure Redundant OPNsense IPsec Tunnels with BGP Between Two Sites (Part 1)
We are going to set up two OPNsense firewalls in the next two posts. Each will have two WAN connections. This setup simulates a real scenario of two Sites and two ISPs at each site. On these two firewalls, we… Continue reading
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Configuring High Availability for OPNsense Firewalls
In this post we are going to set up high availability for two OPNsense firewalls. Our firewalls are installed as VMs in two separate Proxmox nodes in our Lab. All our VMs in our Cluster use OPNsense to connect to… Continue reading
RacerX Steppenwolf 