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Mustafa ERBAY

System architect with 20+ years in infrastructure. Building burncpu.com — an open-source social network. Personal blog: mustafaerbay.com.tr · EN/TR.

Location Bursa, Türkiye Joined Joined on  Personal website https://mustafaerbay.com.tr github website

Work

System architect · DevOps · Open-source builder

systemd-nspawn: Containers Without Images or Registries
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systemd-nspawn: Containers Without Images or Registries

#linux #systemd #containers #security
1
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9 min read

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The Clock You Can't Stop: PostgreSQL XID Wraparound
merbayerp profile

The Clock You Can't Stop: PostgreSQL XID Wraparound

#postgres #database #operations #reliability
1
Comments
9 min read
Lazy Pulling: The Part of the Image Nobody Reads
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Lazy Pulling: The Part of the Image Nobody Reads

#docker #containers #oci #performance
1
Comments
9 min read
Page Reclaim Changed Quietly: MGLRU
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Page Reclaim Changed Quietly: MGLRU

#linux #kernel #memory #performance
1
Comments
9 min read
Setting Up Immich: The Operational Cost of Google Photos Convenience
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Setting Up Immich: The Operational Cost of Google Photos Convenience

#guide #software
1
Comments
6 min read
fanotify: Watching File Access — and Stopping It
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fanotify: Watching File Access — and Stopping It

#linux #kernel #security #observability
1
Comments
10 min read
Sharing IO: io.max, io.weight and io.latency
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Sharing IO: io.max, io.weight and io.latency

#linux #cgroupv2 #storage #performance
1
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10 min read
nftables flowtable: Speed Paid for in Visibility
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nftables flowtable: Speed Paid for in Visibility

#linux #networking #nftables #kernel
1
Comments
9 min read
Compressed Swap: zram or zswap?
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Compressed Swap: zram or zswap?

#linux #memory #kernel #performance
2
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10 min read
Landlock: When a Program Jails Itself
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Landlock: When a Program Jails Itself

#linux #security #kernel #sandbox
1
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11 min read
MPTCP: Enabled in the Kernel, Used by Nobody
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MPTCP: Enabled in the Kernel, Used by Nobody

#linux #networking #tcp #kernel
1
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13 min read
Keep the Kernel Running: systemd soft-reboot
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Keep the Kernel Running: systemd soft-reboot

#linux #systemd #operations #reliability
1
Comments
14 min read
OverlayFS copy_up: Why Container Disks Quietly Grow
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OverlayFS copy_up: Why Container Disks Quietly Grow

#docker #linux #storage #kubernetes
8
Comments
13 min read
systemd-sysext: Adding Tools Without a Trace
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systemd-sysext: Adding Tools Without a Trace

#systemd #linux #immutable #operations
2
Comments
14 min read
Growing a Pod Without Restarting It: In-Place Resize
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Growing a Pod Without Restarting It: In-Place Resize

#kubernetes #operations #autoscaling #cgroup
1
Comments
10 min read
Production Does Not Care About Beautiful Architecture
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Production Does Not Care About Beautiful Architecture

#architecture #devops #security #reliability
1
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4 min read
Environment Variables Keep No Secrets: systemd Credentials
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Environment Variables Keep No Secrets: systemd Credentials

#systemd #security #linux #secrets
1
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11 min read
Is Your SSH Connection Actually Post-Quantum?
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Is Your SSH Connection Actually Post-Quantum?

#security #ssh #openssh #kriptografi
1
Comments
11 min read
Reviewing Your Tech Subscriptions Once a Year
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Reviewing Your Tech Subscriptions Once a Year

#subscriptions #cost #minimalism
1
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7 min read
Moving Your Family to a Password Manager Without a Fight
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Moving Your Family to a Password Manager Without a Fight

#security #learning #uretkenlik
1
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9 min read
Getting Your Data Back: Exporting From Cloud Services
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Getting Your Data Back: Exporting From Cloud Services

#dataexport #privacy #cloud #ownership
3
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9 min read
Your Own Photo Cloud with Immich: Storage and Backup Strategy
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Your Own Photo Cloud with Immich: Storage and Backup Strategy

#selfhosting #guide #software
2
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12 min read
Breaking Knowledge Silos in a Small Team
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Breaking Knowledge Silos in a Small Team

#knowledgesharing #team #documentation
1
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9 min read
Async Communication Discipline in a Remote Team
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Async Communication Discipline in a Remote Team

#remotework #async #communication
3
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9 min read
What Does the Word DevOps Mean in Job Postings?
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What Does the Word DevOps Mean in Job Postings?

#devops #career #indiehacker
3
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6 min read
From Sysadmin to Platform Engineering
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From Sysadmin to Platform Engineering

#sysadmin #platformengineering #careerchange
3
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11 min read
Policy-as-Code with Kyverno: Balance in Admission Control
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Policy-as-Code with Kyverno: Balance in Admission Control

#kyverno #policyascode #kubernetes #admission
2
Comments
15 min read
SLSA Levels: Making Supply Chain Assurance Concrete
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SLSA Levels: Making Supply Chain Assurance Concrete

#slsa #supplychain #security #provenance
3
Comments
12 min read
Digital Legacy: A Plan for the Accounts You Leave Behind
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Digital Legacy: A Plan for the Accounts You Leave Behind

#learning #uretkenlik
2
Comments
9 min read
HTTP/3 and QUIC: What Actually Changed in the Real World
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HTTP/3 and QUIC: What Actually Changed in the Real World

#http3 #quic #networking #performance
2
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12 min read
Kubernetes Without kube-proxy: Cilium eBPF
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Kubernetes Without kube-proxy: Cilium eBPF

#cilium #ebpf #kubernetes #networking
4
Comments
13 min read
Signature Chain with Cosign and Sigstore: Rejecting Unsigned Images
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Signature Chain with Cosign and Sigstore: Rejecting Unsigned Images

#guide #software
2
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6 min read
Hardening DMARC: A Safe Path from p=none to p=reject
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Hardening DMARC: A Safe Path from p=none to p=reject

#dmarc #spf #dkim #emailsecurity
5
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14 min read
Your Own Matrix Server: The Real Cost of Federating Synapse
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Your Own Matrix Server: The Real Cost of Federating Synapse

#matrix #synapse #federation #messaging
6
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13 min read
The Valkey and Redis Split: Life After the License Fight
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The Valkey and Redis Split: Life After the License Fight

#valkey #redis #licensing #opensource
7
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10 min read
Model Context Protocol: The Standard for Connecting Tools to LLMs
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Model Context Protocol: The Standard for Connecting Tools to LLMs

#llm #sistemmimarisi #software
Comments
5 min read
Local Analytics with DuckDB: No Data Warehouse Required
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Local Analytics with DuckDB: No Data Warehouse Required

#duckdb #analytics #olap #data
10
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11 min read
Talos Linux: The API-Managed, Immutable Kubernetes Node
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Talos Linux: The API-Managed, Immutable Kubernetes Node

#talos #kubernetes #immutable #linux
2
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12 min read
RAG Evaluation: Shipping Without Measuring Accuracy
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RAG Evaluation: Shipping Without Measuring Accuracy

#rag #evaluation #llm #codequality
2
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12 min read
Architectural Decision Records with ADR: Teams Documenting the 'Why'
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Architectural Decision Records with ADR: Teams Documenting the 'Why'

#sistemmimarisi #software
2
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7 min read
“Implemented” Is Not the Same as “Verified”
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“Implemented” Is Not the Same as “Verified”

#devops #security #reliability #updates
3
Comments
4 min read
vLLM vs llama.cpp: Which Local Inference Engine, and When
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vLLM vs llama.cpp: Which Local Inference Engine, and When

#vllm #llamacpp #inference #localllm
2
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12 min read
Migrating from pip and venv to uv
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Migrating from pip and venv to uv

#uv #python #dependencymanagement #packaging
3
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14 min read
OpenTelemetry Pipeline with Grafana Alloy
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OpenTelemetry Pipeline with Grafana Alloy

#observability #guide #software
2
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6 min read
PgBouncer Connection Pooling: Modes and Pitfalls
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PgBouncer Connection Pooling: Modes and Pitfalls

#pgbouncer #postgres #connectionpooling #performance
1
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14 min read
Document Archiving with Paperless-ngx: OCR and Tag Automation
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Document Archiving with Paperless-ngx: OCR and Tag Automation

#selfhosting #guide #software
7
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7 min read
Trivy Image Scanning: The CI Breaking Threshold
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Trivy Image Scanning: The CI Breaking Threshold

#trivy #containersecurity #ci #vulnerability
3
Comments
13 min read
VRAM Calculation for Local LLMs: Model Size and Quantization Guide
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VRAM Calculation for Local LLMs: Model Size and Quantization Guide

#llm #guide #software
2
Comments
8 min read
Behavior-Based Intrusion Prevention with CrowdSec
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Behavior-Based Intrusion Prevention with CrowdSec

#guide #software
3
Comments
6 min read
Disaster Recovery with ZFS Snapshots and send/receive
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Disaster Recovery with ZFS Snapshots and send/receive

#zfs #snapshot #replication #storage
2
Comments
15 min read
A Vendor-Independent Smart Home with Zigbee2MQTT
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A Vendor-Independent Smart Home with Zigbee2MQTT

#zigbee2mqtt #mqtt #smarthome #iot
1
Comments
13 min read
Site-to-Site VPN with WireGuard: Key and Route Design
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Site-to-Site VPN with WireGuard: Key and Route Design

#vpn #networking
1
Comments
7 min read
Modern Linux Firewall with nftables: Migrating from iptables
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Modern Linux Firewall with nftables: Migrating from iptables

#linux #guide #software
2
Comments
8 min read
Encrypted Backup with Restic: Repo Design and Recovery Drill
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Encrypted Backup with Restic: Repo Design and Recovery Drill

#guide #software
1
Comments
8 min read
Feature Flag Architecture: Decoupling Deploy from Release
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Feature Flag Architecture: Decoupling Deploy from Release

#featureflags #deployment #architecture #trunkbased
2
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11 min read
Multi-LLM Routers: Designing for Quality, Latency, and Fallback
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Multi-LLM Routers: Designing for Quality, Latency, and Fallback

#llm #router #fallback #resilience
3
Comments
14 min read
Rootless Container Under systemd with Podman Quadlet
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Rootless Container Under systemd with Podman Quadlet

#guide #software
3
Comments
8 min read
OpenTofu Provider Lockfile and Supply Chain Verification
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OpenTofu Provider Lockfile and Supply Chain Verification

#guide #software
2
Comments
5 min read
Multi-Cluster Workload Identity with SPIRE Federation
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Multi-Cluster Workload Identity with SPIRE Federation

#guide #software
2
Comments
6 min read
Matter and Thread Network Design in Home Assistant
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Matter and Thread Network Design in Home Assistant

#sistemmimarisi #software
7
Comments 2
5 min read
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