Wandering Thoughts archives

2021-02-28: Dot-separated DNS name components aren't even necessarily subdomains, illustrated
2021-02-27: My Firefox addons as of Firefox 86 (and the current development version)
My pragmatic sysadmin view on subdomains and DNS zones
2021-02-25: The HTTP Referer header is fading away (at least as a useful thing)
2021-02-24: How convenience in Prometheus labels for alerts led me into a quiet mistake
How (and where) Prometheus alerts get their labels
2021-02-22: The mhbuild directives I want for sending MIME attachments with MH
How I set up testing alerts in our Prometheus environment
2021-02-20: Modern software controls dependencies because it helps software authors
2021-02-19: ZFS pool partial (selective) feature upgrades are coming in OpenZFS
2021-02-18: Understanding what 'systemctl restart' means and when I want to use it
2021-02-17: TLS certificates specifying hosts via their CommonName field is more or less gone
When browsers (or at least Firefox) send HTTP Basic Authentication headers
2021-02-15: How ZFS on Linux brings up pools and filesystems at boot under systemd
2021-02-14: Some observed read latencies for SSDs and NVMe drives under Fedora 32
Link: What was the original reason for the design of AT&T assembly syntax?
2021-02-13: Where the default values for Python function arguments are stored
2021-02-12: An interesting issue around using is with a literal in Python
2021-02-11: Getting high IOPS requires concurrency on modern SSDs and NVMe drives
2021-02-10: Let's Encrypt is preparing for an emergency and that's good for TLS in general
The issue of IOPS versus latency on SSDs and NVMe drives
2021-02-09: Normal situations should not be warnings (especially not repeated ones)
2021-02-07: Strict SameSite web cookie policies probably don't do much for us
2021-02-06: Talkd and 'mesg n': a story from the old Unix days
2021-02-05: Limiting what branches I track from an upstream Git repository
2021-02-04: There are limitations to what expendable addresses can help with
2021-02-03: Junk email as a cover for more nefarious things
2021-02-02: The small oddity in the Unix exec*() family
2021-02-01: Go 1.16 will make system calls through libc on OpenBSD

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