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6/10

VPSentry

A 5-minute install that watches your server's exposed ports, auto-blocks brute-force attackers, and emails you a weekly plain-English security digest — no jargon, no IT degree required.

Target user

small business owners running their own VPS for a website, e-commerce store, or app without dedicated IT staff

Features
  • One-line installer for any Linux VPS or cloud server
  • Auto-bans IPs after repeated failed logins, tagged by country and ASN
  • Weekly 'who tried to break in' digest written in plain English
  • Alerts on suspicious new user accounts, weak default passwords, or newly exposed services
Why now

Honeypot data shows 1.5M automated SSH login attempts across 15 servers in just 30 days — small businesses running default-credential cloud VMs are the easiest targets.

Signals · overall 6/10
Demand
7/10

Multiple honeypot reports (AhnLab ASEC Q2/Q4 2024, SANS ISC, Cowrie) confirm tens of millions of automated SSH brute-force attempts ongoing; SMBs with default-credential VPS are repeatedly singled out as primary targets.Statistical Report on Malware Targeting Linux SSH Servers in Q4 2024The Behavior of Coordinated SSH Brute Force Attacks over the last three...

Whitespace
4/10

Crowded: Fail2ban is free and ubiquitous, CSF, IPBanPro, HeatShield, Cloudflare WAF, and cPHulk all compete; RunCloud/GridPane/ServerPilot/SpinupWP bundle security into VPS management panels at $10–50/mo, leaving little room for a standalone 'security digest' product.Fail2ban Alternatives: Similar Firewalls 2026VPS Control Panel Comparison Tool - SpinupWP

Monetization
5/10

Adjacent VPS management SaaS (RunCloud, GridPane) shows SMBs pay $10–50/mo for server tooling, but security is usually expected as a bundled feature; standalone security apps compete with free Fail2ban, depressing willingness to pay.Pricing - RunCloudCSF Firewall Free Alternatives - UFW + IPSet + Fail2ban

Longevity
8/10

SSH brute force has been a top attack vector for 20+ years and 2024–2026 honeypot data shows continued escalation; Linux VPS adoption by SMBs continues to grow with no replacement on the horizon.SSH Attack Trends 2024: Insights from a Cowrie Honeypot

Feasibility
8/10

Core stack — Fail2ban wrapper + port scanner + weekly email digest — is well-documented and shippable in days; single bash/Python installer script can realistically hit a 5-minute install.

Harvesting SSH Credentials: Insights from My Honeypot Network · 33 points · 25 commentsHacker News · 2026-08-03 (today)