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@sistro-networksMexico City, MexicoJoined March 2026

Enterprise cybersecurity solutions, Fortinet firewalls, and network security infrastructure for businesses. https://sistro.net

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Enterprise cybersecurity solutions, Fortinet firewalls, and network security infrastructure for businesses. https://sistro.net

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Understanding UTM vs NGFW Firewalls for Enterprise Securitysistro-networks.hashnode.dev53 posts

Proxmox VE Lost Quorum: A Practical Corosync Troubleshooting Checklist

Proxmox VE Lost Quorum: A Practical Corosync Troubleshooting Checklist A Proxmox VE cluster may lose quorum even when its physical servers remain powered on and some virtual machines continue running.

16h ago · 2 min readsistro-networks.hashnode.dev

FortiGate IPsec Troubleshooting: When Phase 1 and Phase 2 Are Up but Traffic Fails

An IPsec tunnel can be successfully established while users still cannot reach internal applications. This is an important distinction when troubleshooting FortiClient remote access, particularly afte

2d ago · 2 min readsistro-networks.hashnode.dev

SonicWall TZ80 vs TZ280: How to Size a Firewall for a Modern Branch Office

Choosing between two entry-level firewall platforms should not begin with price. It should begin with workload. SonicWall TZ80 and TZ280 are both part of the Gen 8 portfolio, yet they are aimed at dif

Oct 28 · 2 min readsistro-networks.hashnode.dev

Proxmox Live Migration: Shared Storage vs Local Storage Explained

Proxmox VE live migration is often associated with shared storage, but shared storage is not an absolute requirement in every scenario. With shared storage such as NFS, SAN or Ceph RBD, both the sourc

Oct 20 · 2 min readsistro-networks.hashnode.dev

A Firewall Can Keep Forwarding Traffic and Still Stop Being a Security Platform

One of the most misleading questions in firewall operations is: “Does it still work after the license expires?” “Works” can mean several different things. It may still forward packets. NAT may still f

Oct 9 · 1 min readsistro-networks.hashnode.dev

seo

About

Available for

seo's blogs

Proxmox VE Lost Quorum: A Practical Corosync Troubleshooting Checklist

FortiGate IPsec Troubleshooting: When Phase 1 and Phase 2 Are Up but Traffic Fails

SonicWall TZ80 vs TZ280: How to Size a Firewall for a Modern Branch Office

Proxmox Live Migration: Shared Storage vs Local Storage Explained

A Firewall Can Keep Forwarding Traffic and Still Stop Being a Security Platform

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seo

About

Available for

seo's blogs

Proxmox VE Lost Quorum: A Practical Corosync Troubleshooting Checklist

FortiGate IPsec Troubleshooting: When Phase 1 and Phase 2 Are Up but Traffic Fails

SonicWall TZ80 vs TZ280: How to Size a Firewall for a Modern Branch Office

Proxmox Live Migration: Shared Storage vs Local Storage Explained

A Firewall Can Keep Forwarding Traffic and Still Stop Being a Security Platform