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Tag trends are in beta. Feedback? Thoughts? Email me at [email protected]

How my mail notifier avoids interrupting me (2010)

ZFS scrubs check (much) less than you probably think they do (2018)

Connecting M.2 drives to various things (and not doing so)

Websites and web developers mostly don't care about client-side problems

Implementing a basic equivalent of OpenBSD's pflog in Linux nftables

Another reason to use expendable email addresses for everything

Realizing we needed two sorts of alerts for our temperature monitoring

Why I write recursive descent parsers, despite their issues (2020)

People still use our old-fashioned Unix login servers

Getting decent error reports in Bash when you're using 'set -e'

What is going on in Unix with errno's limited nature

Checklists are hard, but still a good thing

The "personal computer" model scales better than the "terminal" model

Operating system kernels could return multiple values from system calls

I feel open source has turned into two worlds

Some bits on malloc(0) in C being allowed to return NULL

The X Window System didn't immediately have X terminals

My idea of how a modern mailing service should work (2011)

Our Grafana and Loki installs have quietly become 'legacy software' here

Linux kernel WireGuard can go 'fast' on decent hardware

Things are different between system and application monitoring

Python argparse has a limitation on argument groups that makes me sad

A thought on JavaScript "proof of work" anti-scraper systems

In POSIX, you can theoretically use inode zero

The lack of a good command line way to sort IPv6 addresses

Classical "Single user computers" were a flawed or at least limited idea

Intel versus AMD is currently an emotional decision for me

The length of file names in early Unix

Let's Encrypt Drops "Client Authentication" (mTLS) from Its TLS Certificates

Mandatory short duration TLS certificates are probably coming soon

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