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August 13, 2004 • Work

Antispoof feature in ipfw

I should be sure to include the ipfw antispoof option,
implemented by Andre Oppermann in FreeBSD's ipfw, at work

About Niklas

Niklas Saers

Software developer, musician, photographer.

I write about building software that lasts: Swift, databases, developer tools, and practical work with AI.

Swift, web, databases, AI tooling

Applications

Useful apps, visible early.

Well Tempered

A chromatic tuner, pitch pipe, and tuning fork with historical temperaments and Apple Watch support.

Graph Gopher

A focused graph database tool for exploring and working with connected data.

MySQL Commander

A MySQL client with syntax highlighting, iCloud-synced queries, SSH support, and export tools.

MSSQL Commander

A SQL Server client for iPhone with split-view queries, SSH tunneling, and spreadsheet-style result browsing.

PostgreSQL Commander

A PostgreSQL client with iCloud-synced queries, SSH support, exports, and a built-in demo database.

Profile Links

Software craftsmanship with a long memory.

The profile supports the writing instead of competing with it. This block should eventually carry a concise bio and a few durable links.

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Occasional notes on new writing, software releases, and whatever I am building or thinking about.

Email address

© 2026 Niklas Saers • [email protected]