Fixpoint

2024-06-21

Blockchain kindergarten: why proof of work?

Filed under: Bitcoin, JWRD, Networks, Paidagogia, Software — Jacob Welsh @ 02:24

2024-05-17

Poking at a swarm of GNATs

Filed under: Eulora, Gales Linux, Software — Jacob Welsh @ 17:10

2024-05-04

Regrinding Busybox archive extraction, fixing directory timestamps, symlink attacks, a buffer overflow and more

Filed under: Data, Gales Linux, Software — Jacob Welsh @ 03:30

2024-03-22

Dropping BDB locking, bitcoind finally follows the Bitcoin protocol

Filed under: Bitcoin, JWRD, Networks, Software — Jacob Welsh @ 05:30

2024-03-20

Auditing bitcoind for concurrent database objects: the call graph from hell

Filed under: Bitcoin, Data, JWRD, Networks, Software — Jacob Welsh @ 20:49

2024-03-17

On the fact that bitcoind fails to implement the Bitcoin protocol

Filed under: Bitcoin, Data, Historia, JWRD, Networks, Software — Jacob Welsh @ 18:24

2024-03-09

File-level error recovery for keksum

Filed under: Hash functions, Software — Jacob Welsh @ 21:03

2024-02-27

Espotek Labrador product review of sorts, with comments and mostly questions

Filed under: Data, Hardware, Software — Jacob Welsh @ 07:02

2024-01-29

Spreading entropy with rngnet, a first software edition

Filed under: Hardware, JWRD, Networks, News, Philosophia, Software — Jacob Welsh @ 05:21

2023-08-17

DNS kiting

Filed under: Email, Networks, Software — Jacob Welsh @ 20:00

2023-06-26

JWRD Dovecot initial release, aka version 2.4.0

Filed under: Email, Gales Linux, JWRD, News, Software — Jacob Welsh @ 04:39

2023-04-13

Fixpoint is moving in domain name space.

Filed under: MP-WP, Networks, News — Jacob Welsh @ 22:10

2023-04-06

The Dovecot reports: how we came to forking a major email server

Filed under: Email, Historia, JWRD, Software — Jacob Welsh @ 23:58

2023-04-05

Smartening up gbw-node

Filed under: Bitcoin, Data, Software — Jacob Welsh @ 01:37

2023-03-23

Gales Scheme release 0.40.7 fixing glibc build

Filed under: Bitcoin, Scheme, Software — Jacob Welsh @ 04:47

2023-03-21

Correcting tedu's sct utility to set color temperature

Filed under: Software — Jacob Welsh @ 15:35

2023-03-04

Building R on CentOS 6

Filed under: Data, Software — Jacob Welsh @ 01:19

2023-02-28

Getting started with the JWRD key management hardware kit

Filed under: Gales Linux, Hardware, JWRD, Networks, Paidagogia, Software — Jacob Welsh @ 07:37

2023-02-06

Cable & Wireless Panama and the verschlimmbessert connection

Filed under: Eulora, Networks, News, Politikos, Software — Jacob Welsh @ 21:53

2023-01-24

yrc 95K release with patch pile

Filed under: JWRD, Networks, News, Software, yrc — Jacob Welsh @ 20:58

2022-12-18

GPG was already broken on CentOS 6.

Filed under: Philosophia, Software — Jacob Welsh @ 03:46

2022-11-25

A quick survey of filthy character sets from my mail archives

Filed under: Data, Email, Gales Linux, Historia, JWRD, Networks, Politikos, Software — Jacob Welsh @ 23:33

2022-10-26

Classifying the Dovecot module menagerie by load point

Filed under: Email, Gales Linux, JWRD, MySQL, Software — Jacob Welsh @ 23:55

2022-10-22

Sounding the swamps of Internet mail access

Filed under: Email, Gales Linux, JWRD, Software — Jacob Welsh @ 21:46

2022-10-20

BusyBox microcom, the code review

Filed under: Gales Linux, Hardware, JWRD, Software — Jacob Welsh @ 05:49

2022-06-23

Freeing Windows files with FreeFileSync

Filed under: JWRD, Networks, Software — Jacob Welsh @ 00:53

2022-06-17

Fixpoint Security Advisory: FreeFileSync misses host key check, allowing breach of data confidentiality or authenticity

Filed under: JWRD, Networks, News, Software — Jacob Welsh @ 22:00

2022-06-13

Fixed-width bit-fiddling tuneups for gbw-signer

Filed under: Bitcoin, Hash functions, JWRD, Scheme, Software — Jacob Welsh @ 02:02

2022-05-21

Sending buffer overflows fixed in bitcoind, and other cleanups

Filed under: Bitcoin, JWRD, Networks, News, Software — Jacob Welsh @ 22:33

2022-05-05

Two patches and a new fetch-bitcoind release

Filed under: Bitcoin, JWRD, Software — Jacob Welsh @ 21:39

The passive threads that would like to be given some blocks

Filed under: Bitcoin, JWRD, Software, Tempus fugit — Jacob Welsh @ 18:29

2022-04-25

PHP pains

Filed under: JWRD, Software — Jacob Welsh @ 21:00

2022-04-05

The root filesystem and mount options weirdness

Filed under: Gales Linux, Software — Jacob Welsh @ 22:19

2022-04-01

Spec for a usable IP tunneling system

Filed under: JWRD, Networks, Software — Jacob Welsh @ 23:45

2022-03-22

Mapping the bitcoind block acceptance code, with bonus patch for index access

Filed under: Bitcoin, Hardware, JWRD, Software — Jacob Welsh @ 04:08

2022-02-04

The simplest way yet to fetch Bitcoin code

Filed under: Bitcoin, Historia, JWRD, Philosophia, Software, V — Jacob Welsh @ 00:07

2022-01-27

Fighting fire with fire: a tidbit of JS to suppress the new-style popups

Filed under: Historia, Software — Jacob Welsh @ 19:54

2021-12-27

Header-only archive views in MP-WP

Filed under: MP-WP, Software — Jacob Welsh @ 22:59

2021-12-07

Crashproofing bitcoind, the easy and the not-so-easy

Filed under: Bitcoin, Hardware, JWRD, Software — Jacob Welsh @ 06:45

2021-12-03

Gales Bitcoin Wallet (re)release

Filed under: Bitcoin, Historia, JWRD, News, Scheme, Software, Tempus fugit — Jacob Welsh @ 08:52

2021-11-13

A tetrad of tuneups for bitcoind

Filed under: Bitcoin, JWRD, Software — Jacob Welsh @ 15:54

2021-11-07

MySQL in Gales 3: debug, rebug

Filed under: Gales Linux, JWRD, MySQL, Software — Jacob Welsh @ 08:38

2021-11-06

MySQL in Gales 2: bundles of joy

Filed under: Gales Linux, JWRD, MySQL, Software — Jacob Welsh @ 05:21

2021-10-31

Muzzling MySQL into Gales shape, part 1: groundwork

Filed under: Gales Linux, JWRD, MySQL, News, Software — Jacob Welsh @ 05:10

2021-06-20

Alert: dumpblock flaw in bitcoind can cause gbw-node to incorrectly report transactions

Filed under: Bitcoin, JWRD, News, Software — Jacob Welsh @ 05:21

2021-05-23

Of coffee and code

Filed under: Historia, JWRD, Software, V, Vita — Jacob Welsh @ 11:13

2020-11-02

Some shower thoughts on networks and referencing

Filed under: Philosophia, Software — Jacob Welsh @ 21:50

2020-09-29

Gales Scheme

Filed under: Historia, JWRD, Scheme, Software — Jacob Welsh @ 22:26

2020-06-27

A bevy of fixes for V in Perl

Filed under: Software, V — Jacob Welsh @ 21:49

2020-06-08

yrc re-genesis and patch for smooth scrolling and other fixes

Filed under: Software, yrc — Jacob Welsh @ 06:50

2020-04-28

Build system overhaul for bitcoind

Filed under: Bitcoin, Historia, Software — Jacob Welsh @ 21:19

2020-04-22

New and improved raw transaction support for bitcoind

Filed under: Bitcoin, Software — Jacob Welsh @ 05:25

2020-04-11

Preliminary report on the bitcoind hex conversion mess

Filed under: Bitcoin, Politikos, Software — Jacob Welsh @ 16:46

2020-04-10

The missing Adacore public download index, vintage 2018, while it lasts

Filed under: Data, Historia, Software — Jacob Welsh @ 21:16

2020-04-07

Selection and other sundries for MP-WP

Filed under: MP-WP, Software — Jacob Welsh @ 04:49

2020-04-02

V in Perl with parsing fix, keksum, and starter, plus the ill-fated vdiff

Filed under: Gales Linux, Software, V — Jacob Welsh @ 17:50

2020-03-31

Adventures in the forest of V

Filed under: Historia, Software, V — Jacob Welsh @ 19:11

2020-03-07

JFW's 130 top Trilema picks to date

Filed under: Bitcoin, Hardware, Historia, Lex, Paidagogia, Philosophia, Politikos, Software, Vita — Jacob Welsh @ 16:25

2020-03-04

Bitcoin transactions and their signing, 2: attachment

Filed under: Bitcoin, Software — Jacob Welsh @ 20:10

2020-02-25

Bitcoin transactions and their signing, 1

Filed under: Bitcoin, Software — Jacob Welsh @ 23:42

2020-01-30

From the forum log, 30 December 2019

Filed under: Paidagogia, Software, Summaries — Jacob Welsh @ 18:48

2020-01-20

Draft gbw-node frontend, part 6

Filed under: Bitcoin, Software — Jacob Welsh @ 21:32

2020-01-19

Draft gbw-node frontend, part 5

Filed under: Bitcoin, Software — Jacob Welsh @ 19:02

Draft gbw-node frontend, part 4

Filed under: Bitcoin, Software — Jacob Welsh @ 04:36

2020-01-17

Draft gbw-node frontend, part 3

Filed under: Bitcoin, Software — Jacob Welsh @ 18:02

2020-01-16

Draft gbw-node frontend, part 2

Filed under: Bitcoin, Software — Jacob Welsh @ 18:52

2020-01-07

Errata for gbw-node drafts to date, and Bitcoin txid collisions

Filed under: Bitcoin, Software — Jacob Welsh @ 18:11

2019-12-18

Draft gbw-node frontend, part 1

Filed under: Bitcoin, Software — Jacob Welsh @ 01:18

2019-12-16

Draft gbw-node schema

Filed under: Bitcoin, Software — Jacob Welsh @ 22:09

2019-12-15

Review of polarbeard_add_sendrawtransaction_rpc.vpatch

Filed under: Bitcoin, Software — Jacob Welsh @ 20:14

2019-12-05

Basic getrawtransaction patch proposal for bitcoind

Filed under: Bitcoin, Software — Jacob Welsh @ 17:35

2019-12-04

keksum, a Keccak implementation in C as standalone Unix utility: genesis

Filed under: Gales Linux, Hash functions, Software, V — Jacob Welsh @ 17:36

2019-12-03

Keccak background

Filed under: Bitcoin, Hash functions, Historia, Software — Jacob Welsh @ 18:52

2019-12-02

Mapping context and scope for a Keccak writeup

Filed under: Hash functions, Software, Writing — Jacob Welsh @ 19:42

2019-12-01

Gales Linux initial release

Filed under: Gales Linux, Software — Jacob Welsh @ 21:05

2019-11-29

Introducing Gales Linux, a cross-bootstrapped, do-it-yourself, fully-static, discriminatory distribution

Filed under: Gales Linux, Software — Jacob Welsh @ 20:57

2019-11-28

Gales Bitcoin Wallet spec and battle plan

Filed under: Bitcoin, Software — Jacob Welsh @ 04:51

2019-11-20

Next steps in wallet planning

Filed under: Bitcoin, Software — Jacob Welsh @ 18:40

2019-11-19

Gales Bitcoin Wallet: status, preliminary work plan and code dump

Filed under: Bitcoin, Software — Jacob Welsh @ 21:01

2019-11-16

Blogging photos and chat logs: some handy scripts

Filed under: Software — Jacob Welsh @ 20:37

2019-11-14

yrc, a Unix IRC client: genesis

Filed under: Software, yrc — Jacob Welsh @ 18:44

2019-10-28

Misadventures in MP-WP setup, the sad work-in-progress post

Filed under: MP-WP, Software — Jacob Welsh @ 05:54

2019-10-21

Planned articles as of October 2019

Filed under: Ego, Software — Jacob Welsh @ 00:00

2019-10-15

On Submission, Guiding Perceptions, Vulnerability, Liberty, Socialism and Emacs

Filed under: Ego, Philosophia, Politikos, Software — Jacob Welsh @ 05:14

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