Schiff Heimlich

Schiff Heimlich

Jul 1

Linux 7.2 cut pipe mutex contention — why your shell pipelines just got faster

#news #architecture #linux #performance

2 min read

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Jun 30

The Microsoft UEFI CA from 2011 expired last week. Here's what to check.

#sysadmin #security #devops

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Jun 30

Your CI ran code it should not have, and you cannot prove it did not

#cicd #devops #opensource #security

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Jun 25

The jq newline that silently corrupted my URLs

#cli #devjournal #linux #tooling

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Jun 24

Making HTTP requests from a container with no curl

#devops #sysadmin #containers

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Jun 23

You might not need Redis: a DB table and your filesystem do more than you think

#architecture #backend #database #systemdesign

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Jun 22

IPv6 zone identifiers do not belong in URLs

#backend #infrastructure #networking #webdev

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Jun 21

IPv6 zone identifiers in URLs are a quiet parser gotcha

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Jun 20

The queue probability drops faster than you think when you add servers

#computerscience #distributedsystems #performance #systemdesign

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Jun 19

Homebrew 6.0 sandbox: what the systemd confinement actually does

#devops #sysadmin #linux

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Jun 18

Batch-converting documents to markdown with Microsoft's markitdown

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Jun 17

Systemd timer units: two things cron still cant do

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Jun 16

Your Java Container Is Lying to You About Its Memory

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Jun 4

Your gRPC health check might be lying to you

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Jun 3

Git rerere: the feature you didnt know you needed

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Jun 2

Git rerere: the setting I enable on every machine after forgetting it exists

#git #productivity #tooling #tutorial

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Jun 1

Go's httptrace: debugging HTTP request pipelines without leaving the standard library

#backend #go #networking #tutorial

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May 31

Google API Key Deletion Is Not Instant — Here's What Actually Happens

#api #distributedsystems #google #security

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May 30

When Your VPS Blocks Outbound SMTP: What Actually Helps

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May 29

Enable http2 debug logging in Apache to catch HTTP/2 abuse patterns

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May 28

Why Your Kubernetes Cost Optimizations Stay Manual (And What Actually Helps)

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May 27

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May 26

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May 25

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May 25

SSH Login Taking Forever? Check Your DNS Settings

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Writing Debut

Linux 7.2 cut pipe mutex contention — why your shell pipelines just got faster

The Microsoft UEFI CA from 2011 expired last week. Here's what to check.

Your CI ran code it should not have, and you cannot prove it did not

The jq newline that silently corrupted my URLs

Making HTTP requests from a container with no curl

You might not need Redis: a DB table and your filesystem do more than you think

IPv6 zone identifiers do not belong in URLs

IPv6 zone identifiers in URLs are a quiet parser gotcha

The queue probability drops faster than you think when you add servers

Homebrew 6.0 sandbox: what the systemd confinement actually does

Batch-converting documents to markdown with Microsoft's markitdown

Systemd timer units: two things cron still cant do

Your Java Container Is Lying to You About Its Memory

Your gRPC health check might be lying to you

Git rerere: the feature you didnt know you needed

Git rerere: the setting I enable on every machine after forgetting it exists

Go's httptrace: debugging HTTP request pipelines without leaving the standard library

Google API Key Deletion Is Not Instant — Here's What Actually Happens

When Your VPS Blocks Outbound SMTP: What Actually Helps

Enable http2 debug logging in Apache to catch HTTP/2 abuse patterns

Why Your Kubernetes Cost Optimizations Stay Manual (And What Actually Helps)

A Caddy Cert Expired Because systemd-resolved Was Selectively Lying

systemd-resolved broke my TLS cert renewal

SSH Login Delays: The 10-Second Wait That Drives Us Crazy

SSH Login Taking Forever? Check Your DNS Settings