Security
Portmaster
2.2.1 · Linux
Portmaster is a system firewall with the function of monitoring network traffic, blocking ads, trackers and controlling application access to the Internet. It allows you to add your own rules and block domains.
- Version
- 2.2.1
- Platform
- Linux
- Licence
- Freeware
- File size
- 10MB
- Version information updated
- 2026-06-12
- Manufacturer
- Safing ICS Technologies GmbH
Questions about downloads
Where does the download come from?
Direct files are downloaded through NetCloud24. Installers come from the source addresses listed in the catalogue and are passed on unchanged. Links labelled as a publisher’s page open that website.
Does downloading include a software licence?
Downloading an installer and purchasing a licence are separate actions. Free software follows its publisher’s licence; commercial software may require activation or a subscription.