Jumbo Frames on Ethernet
On history, mechanics, trade-offs, and why the checklist survives
Tag: Blog
Less Cinema, More Paperwork
The real historical analogy: writing hardening into administration, governance, and protocol
Consequential, Not Just Useful
When MCP connects models to permissions, words become actions
From Prompt to Protocol Stack
Layers for humans, agents, tools, and infrastructure around the chat box
Hidden Language Beneath English?
Soft prompts, steering vectors, and machine-native control beyond prose
Prompting Is Not Conversation
specification-writing for a probabilistic component that still looks like chat
Freedom Creates Protocol
Why natural language pushes formalism upstairs into templates and contracts
TP Toolchain 7: TPW -> Delphi
Forms, components, event handlers, and the RAD mindset
TP Toolchain 6: Windows Transition
Object Pascal, Turbo Pascal for Windows, OWL, and the first GUI shift
VFAT Shortname Rules
How long names become 8.3 aliases, and how collisions resolve
Deterministic DIR Output
Treating DIR formatting as an API contract for automation
Why Old Machines Teach Systems Thinking
When Crystals Drift
Timing faults in vintage hardware
Turbo Pascal Units
As architecture, not just reuse
Turbo Pascal History
Through tooling decisions, compile speed, and workflow discipline
Turbo Pascal Before the Web
The IDE that trained a generation
Trace-First Debugging
Structured timelines before deeper tooling
TP Toolchain 5: TP6 -> TP7
Compiler, linker, directives, ABI shifts, and language growth
TP Toolchain 4: BGI Integration
Driver packaging, linked vs dynamic assets, and rendering diagnostics
TP Toolchain 3: Overlays
FAR calls, memory models, and real-mode link strategy under pressure
TP Toolchain 2: Binary Forensics
TPU, OBJ, MAP, and EXE artifacts read like evidence
TP Toolchain 1: The Full Stack
Editor, compiler, linker, debugger, units, and artifact flow
Timer Capture Without an RTOS
Input-capture peripherals for pulse widths and event latency
Threat Modeling in the Small
One feature, one flow, one safer change this week
The Cost of Unclear Interfaces
Ambiguity as a compounding reliability tax
Terminal Kits for Incident Triage
Small, scriptable primitives under time pressure
State Machines That Survive Noise
SPI Signals That Lie
When plausible bytes hide electrical or sequencing failure
Security Findings as Design Feedback
Reading vulnerabilities as architecture signals
ROP Under Pressure
Payloads that survive leaks, mitigations, and messy binaries
Recon Pipeline with Unix Tools
Composable stages instead of one monolithic scanner
Recapping a Vintage Mainboard
A controlled restoration process, not just a parts swap
Prototyping with Failure Budgets
Planning time for bad assumptions and rework
Overlay Lab: Build and Debug OVR
Hands-on overlay packaging, runtime setup, and deployment in Turbo Pascal
Mode X (TP) IV: Tilemaps
Scrolling worlds, chunk loading, and scene-scale memory budgets
Mode X (TP) III: Sprites
Masked blits, transparency, draw order, and palette animation
Mode X (TP) II: Primitives
Plane-aware pixels, centralized clipping, and page-target drawing
Mode X (TP) I: Planar Memory
VGA planes, off-screen pages, and why games left Mode 13h
Mode 13h in Turbo Pascal
Graphics programming without illusions
Maintenance Is a Creative Act
Latency Budgeting on Old Machines
When constrained hardware makes wait time a design variable
IRQ Maps and the Politics of Slots
Negotiating IRQ, DMA, and I/O on DOS-era PCs
Interrupts as User Interface
INT 10h, 16h, and 21h as DOS-era interaction surfaces
Incident Response with a Notebook
A timestamped timeline when dashboards lag
Ground Is a Design Interface
Giant Log Lenses
Layout stress test for wide CLI output and log lines
Fuzzing to Exploitability
Triage, minimization, and harness quality between crash and finding
Exploit Reliability over Cleverness
Debugging Noisy Power Rails
Measurement hygiene before chasing firmware ghosts
Debouncing with Time and State
Not hope: explicit stability windows instead of ISR delays
CONFIG.SYS as Architecture
Runtime policy before your application loads
Clarity Is an Operational Advantage
C:\> After Midnight
A DOS chronicle
Building Repeatable Triage Kits
Packaging workflow so every analyst starts the same way
BGI Lab: Drivers and Diagnostics
Dynamic drivers, linked drivers, and startup harnesses in Turbo Pascal
Benchmarking with a Stopwatch
Experimental discipline before high-resolution timers
Assumption-Led Security Reviews
Testing claims instead of running checklists
Archive Discipline for the Floppy Era
Naming, verification, and restore habits that still matter
Why Constraints Matter
Restoring an AT 286
PSU faults, battery damage, and XTIDE bring-up on a real machine
RISC-V on a 10-Cent Chip
CH32V003 bring-up, UART echo, and 8 uA sleep
Nmap Beyond the Basics
NSE scripts and staged, auditable scan workflows
Format String Attacks
From %08x reads to %n arbitrary writes
Turbo Pascal in 2025
DOSBox-X, the classic IDE, and a 3 KB RTC utility
Linux Networking 7: nftables in Production
Ten years on: migration scars, defaults, and operator truth
Linux Networking 6: BPF and eBPF
Programmable networking and observability at the 2015 horizon
Storage on Budget Linux
IDE, SATA, backups, and what actually survived production in the 2000s
Mailboxes to Internet 4: Perimeter and Proxies
Firewalls, monitoring, and when internet access becomes mandatory
VMware on a Pentium II
Early betas, SuSE host, Windows NT guest, and the shock of local virtualization
Mailboxes to Internet 3: Identity and File Services
Samba, printers, and mixed-network habits that linger longer than servers
Mailboxes to Internet 2: Mail Under Real Traffic
Postfix, hostile traffic, and trust on weekdays
Linux Networking 5: iptables in Practice
Netfilter hooks, tables, and operator-grade change discipline
Mailboxes to Internet 1: Gateway Years
Crosspoint, dial-up culture, and the beige-box Linux bridge
Linux Networking 4: iproute2 Replaces ifconfig
Policy routing and QoS when route stops being enough
Debian Woody Home Router
iptables, BIND 9, Squid, and the box the flat finally trusts
Debian Potato on a 486
Preparing the real router migration before the final swap
LAN Services on the Router
dhcpd, BIND 8, Squid, and Adzapper for the whole flat
Linux Networking 3: The ipchains Era
Linux 2.2, chain logic, and migrating off ipfwadm habits
D-Channel Syslog Hack
Wake the router with a ring, then update DynDNS from isdn4linux logs
ISDN Dial-on-Demand
SuSE, ipfwadm, and getting the line up only when traffic asks
First Linux Router
SuSE 5.3, Teles ISDN, T-Online, and the modem that blinked for years
Linux Networking 2: ipfwadm and Masquerading
Edge policy on modest hardware before dedicated appliances
Linux Networking 1: Networking in the 90s
Practical TCP/IP for the one-box, one-CRT lab
IPX on Linux
Command-oriented primer for mixed Novell coexistence in the 90s