About pjhtech Tools

Network calculators, configuration helpers and technical guides.

PJH-Tech provides network calculators, FortiGate configuration generators, and practical FortiGate, MikroTik and UniFi guides. Calculators run in your browser. Looking Glass runs requested network queries from the server; What’s My IP shows the address seen by this site.

Contact and corrections

For a correction, include the page, the problem and the expected result. For a calculator, include the input and output; a technical source helps resolve the difference.

The operator can be reached at pjhatonen@gmail.com. Please omit credentials, customer data and confidential configurations from email.

Independent publication

pjhtech Tools is not affiliated with Fortinet, MikroTik, Ubiquiti or the standards organizations referenced here. Product names identify the systems a helper relates to. No vendor certification or endorsement is implied.