JJJozzieTechinjjozzietech.hashnode.dev·4d ago · 12 min readOPNsense on bare metal — 18 months as the only perimeterFor most of the homelab's life, there wasn't a firewall. The ISP router did what ISP routers do — NAT out, block unsolicited inbound, don't ask hard questions. That's not zero security. It's just not 00
4F404 Foundersin404-founders.com·Jun 24 · 3 min readFortiBleed: 86,000 Firewalls Compromised by Default PasswordsSomeone built a database of working usernames and passwords for 86,000 Fortinet firewalls. Half of the internet-facing FortiGate devices on the planet are in it. The Campaign Security researchers hav00
NSNabeel Shaikhinnabeelshaikh7.hashnode.dev·Jun 9 · 18 min readVirtualized OPNsense, Router-on-a-Stick, and Layer 2 TroubleshootingSection 1 — The Itch For a solid year, I was on a nationwide ISP that handed me a router with exactly two settings accessible: change the LAN IP or disable DHCP. Truly generous of them. It was a locke10
SBSwastisunder Badatyainswasti.hashnode.dev·May 31 · 7 min readUnderstanding Network DevicesEvery time you open YouTube, Instagram, Netflix, or any website… your request travels through many different network devices before reaching server. Most beginners thinks internet is just: Laptop → In00
KSKaustubh Sharmainkaustubhtech.hashnode.dev·May 13 · 10 min readHow a Single Firewall Quietly Murdered SQL Log ShippingEvery night at 03:00, a 30-minute SQL log-shipping window started taking 90. The DBAs blamed the network. The network team blamed the storage. The Windows admin blamed the NIC. They were all nearly ri00
DNDaniel Nwachukwu Chigoziriminverifieddanny.hashnode.dev·May 6 · 3 min readGot flagged by the German Federal Office for Information Security for two exposed databases on my VPS. Here's what was wrong and how I locked it down in 20 minutes.I had this project I deployed a few days back: conduit, A webhook relay that makes sure webhook events coming from external sources get to your application server. Everything was going fine until I go00
NDnickson diazinnickson-infraestructure.hashnode.dev·May 5 · 3 min readEnterprise simulation NFGW GUI Foundation LabToplogy Overview Initial configuration In this I'm setting the value for communication between PC-ADMIN and Fortigate. Fortigate Commands FortiGate-VM64-KVM # config system interface FortiGate-VM600
ACAdarsh Choubeyinnetworking--basics.hashnode.dev·Apr 25 · 2 min read🌐 Networking Basics Explained: Router, Modem, Firewall, Load Balancer, Switch & Hub🔌 1. Router A router connects different networks together. 👉 It connects your home network to the internet 👉 It decides where data should go Example: When you open a website, the router sends your 00
MAMuhammad Alfian Tirta Kusumainblog-alfian.hashnode.dev·Apr 18 · 3 min readControlling Port Access with UFWUFW (Uncomplicated Firewall) is a user-friendly front end for iptables designed to make managing a host-based firewall simpler. It’s available on Debian/Ubuntu and many other Linux distributions and p00
HHugoinhugovalters.hashnode.dev·Apr 8 · 3 min read"admin/admin": How Your $10,000 Firewall is Compromised by a $1 MistakeI love auditing infrastructure where a company has spent $15,000 on a high-end FortiGate or Palo Alto appliance, paid another $5,000 for the advanced threat protection licensing, and then left the web management interface exposed to the entire intern...00