---
title: "Blog"
url: "https://www.iopstor.com/blog"
type: "Index"
---

# Blog

- [The 3-2-1 Backup Strategy, Done Properly: Snapshots, Offsite and Cloud Copies](/blog/3-2-1-backup-strategy.md): The 3-2-1 backup rule, explained properly: how snapshots, a second copy and an offsite or cloud copy work together to survive ransomware, fire and mistakes.
- [The Internet Went Down. The Trading Desk Didn't Notice.](/blog/the-internet-went-down-the-trading-desk-didn-t-notice.md): For a trading firm, a few seconds offline during market hours isn't an inconvenience. It's a missed trade. This firm had two internet lines and one rule above everything else: the trading desk must never go dark.

Their old router couldn't keep that promise. One IOPSTOR firewall could.
- [Port 8080, open to Meta and no one else](/blog/port-8080-open-to-meta-and-no-one-else.md): A client's new WhatsApp integration needs port 8080 open to the internet. When they opened that port last year for something else, malware attacks took their production server down. Because they already run an IOPSTOR HCI server, the fix needs no new hardware. The firewall runs as one more virtual machine on that server, and it lets port 8080 in from Meta's servers only.
- [Two offices, one network](/blog/two-offices-one-network.md): A client with a main office and a branch wanted staff at either site to work as if they were sitting in the other. We put an IOPSTOR firewall at each office and joined them with one encrypted tunnel, running over the internet lines they already had.