Security
ISP Network Security: DDoS Protection, Firewall Rules & Best Practices
Protect your ISP network from DDoS attacks, brute force, and common threats with MikroTik firewall rules, rate limiting, CGNAT security, and monitoring.
ISP operations journal
Guides for running a better ISP
Practical articles from the ISPbills team on billing, RADIUS, fiber, network operations and growth.
MikroTik
CGNAT for ISPs: Configuration, Logging & Subscriber Tracking on MikroTik
A practical CGNAT guide for ISPs on MikroTik — choosing port-block sizes, configuring src-nat, deterministic vs stateful logging, subscriber tracking for legal requests, and IPv4 conservation strategy.
MikroTik
Connect MikroTik to ISPbills Without a Public IP: SSTP VPN Step-by-Step Guide
Step-by-step beginner guide: create an SSTP VPN account in ISPbills, copy the auto-generated RouterOS commands, paste them into your MikroTik terminal, and add the router using the assigned VPN IP — no public IP or port forwarding required.