Blogpost archive

This is a list of all my blogposts. They range from highly technical to entry level, from Linux to PHP and server management.

If you have an interesting topic to write about, reach out and I'll see what I can do.

2019-03

2019-03-19 MySQL 8 & Laravel: The server requested authentication method unknown to the client

2019-02

2019-02-28 Showing the DNS score in your dashboard & an updated layout
2019-02-25 Run a Bitcoin Lightning Node on CentOS 7
2019-02-25 Limit the disk space consumed by Bitcoin Core nodes on Linux
2019-02-25 Run a Bitcoin Core full node on CentOS 7

2019-01

2019-01-23 Remote Code Execution in apt/apt-get

2018-12

2018-12-12 Our Gitlab CI pipeline for Laravel applications – Oh Dear! blog
2018-12-06 PHP 7.3.0 Release Announcement
2018-12-04 Deploying laravel-websockets with Nginx reverse proxy and supervisord
2018-12-04 Benchmarking websocket server performance with Artillery

2018-11

2018-11-29 Increase the number of open files for jobs managed by supervisord
2018-11-27 My Laracon EU talk: Minimum Viable Linux
2018-11-27 Why your NS records matter
2018-11-22 Tracking SQL queries
2018-11-19 A big update to DNS Spy – DNS Spy Blog
2018-11-11 HTTP-over-QUIC will officially become HTTP/3
2018-11-07 Automatic monitoring of Laravel Forge managed sites with Oh Dear!
2018-11-06 How to size & scale your Laravel Queues
2018-11-04 Laravel Telescope: Data too long for column ‘content’

2018-10

2018-10-17 The convincing Bitcoin scam e-mail extorting you
2018-10-10 MySQL 8 removes shorthand for creating user + permissions
2018-10-02 Find the public key belonging to a private key

2018-09

2018-09-24 ssh error: unable to negotiate with IP: no matching cipher found
2018-09-13 HHVM is Ending PHP Support
2018-09-11 Indie Hackers interview with Oh Dear!
2018-09-11 Elasticsearch fails to start: access denied “/etc/elasticsearch/${instance}/scripts”
2018-09-10 MySQL: Calculate the free space in IBD files
2018-09-07 Chrome stops showing “www”-prefix in URI

2018-05

2018-05-14 Remote Desktop error: CredSSP encryption oracle remediation
2018-05-02 DNS Spy now checks for the “Null MX”

2018-04

2018-04-30 Certificate Transparency logging now mandatory
2018-04-30 Chalk Talk #3: how to optimise your content for Varnish
2018-04-16 Upcoming presentation at LOADays: Varnish Internals – Speeding up a site x100
2018-04-06 Chalk Talk #2: how does Varnish work?
2018-04-03 Varnish: same hash, different results? Check the Vary header!
2018-04-03 Varnishlog: show the hash() data in output

2018-03

2018-03-28 Drupal core – Highly critical – Remote Code Execution – SA-CORE-2018-002
2018-03-28 It’s about what broke, not who broke it
2018-03-27 Why I usually run ‘w’ first when troubleshooting unknown machines
2018-03-25 Chalk Talk #1: An introduction to Varnish
2018-03-22 Upcoming Drupal 7 and 8 core highly critical security release: March 28th
2018-03-19 The security footgun in etcd
2018-03-15 Enable the slow log in Elastic Search
2018-03-15 Varnish 6.0 released
2018-03-11 Laravel & MySQL auto-adding “on update current_timestamp()” to timestamp fields

2018-02

2018-02-26 Clear systemd journal
2018-02-24 Announcing “Oh Dear!”: a new innovative tool to monitor your websites
2018-02-20 Update a docker container to the latest version
2018-02-19 Show IDN punycode in Firefox to avoid phishing URLs
2018-02-13 Nginx adds support for HTTP/2 Server-Side Push
2018-02-09 Chrome will mark all HTTP sites as “not secure”

2018-01

2018-01-17 Red Hat reverts microcode update to mitigate Spectre, refers to hardware vendors for fix
2018-01-16 Mozilla Firefox to require HTTPS in order to use latest features
2018-01-13 I’m taking a break from cron.weekly
2018-01-04 Intel’s CPU vulnerabilities: Meltdown and Spectre

2017-12

2017-12-11 “du –max-depth” alternative on Mac OSX

2017-11

2017-11-28 Root login without password allowed by default on Mac OSX High Sierra

2017-10

2017-10-31 Fall cleaning: shutting down some of my projects
2017-10-30 Staat der Nederlanden CA might be revoked from Mozilla Policy?
2017-10-16 Compile PHP from source: error: utf8_mime2text() has new signature
2017-10-16 KRACK Attacks: Breaking WPA2
2017-10-15 Get shell in running Docker container
2017-10-06 Antwerp WordPress User Group offering public speaking course
2017-10-04 Laravel Forge + Envoyer + Managed Hosting = Nucleus

2017-09

2017-09-21 Due to CAA records, unable to issue TLS certs for names in private.cam.ac.uk
2017-09-21 Why we’ve cancelled our free tier – DNS Spy Blog
2017-09-20 DNS Research: using SPF to query internal DNS resolvers
2017-09-18 A proposal for cryptocurrency addresses in DNS
2017-09-17 Chrome & Firefox now force .dev domains to HTTPS via preloaded HSTS
2017-09-16 Linux man-pages: man-pages-4.13 is released
2017-09-15 Cloudflare now serves F-Root instance
2017-09-14 Laravel Horizon: requires ext-posix, missing from CentOS
2017-09-14 Presentation: Code Obfuscation, PHP shells & more
2017-09-11 cron.weekly issue #97: kernel 4.13, TLS, LLVM, Yarn, Vagrant, AWX, Nginx & more
2017-09-10 Coming soon: Oh Dear! – Monitoring for the encrypted web
2017-09-09 CAA record checking now mandatory for Certificate Authorities
2017-09-03 2 interesting things happened in last cron.weekly’s newsletter

2017-08

2017-08-29 Release Notes Driven Development (RNDD)
2017-08-28 Restore one-click certificate viewing in Chrome
2017-08-23 Removing root-owned files as a non-root user
2017-08-18 MariaDB: JSON datatype supported as of 10.2
2017-08-01 RHEL & CentOS 7.4 restores HTTP/2 functionality on Nginx

2017-07

2017-07-19 Podcast: The Ceremony, the birth of Zcash
2017-07-18 Choose source IP with ping to force ARP refreshes
2017-07-18 Apache httpd 2.2.15-60: underscores in hostnames are now blocked
2017-07-17 mysqldump without table locks (MyISAM and InnoDB)
2017-07-13 Unix time 1.500.000.000
2017-07-11 Launching the cron.weekly forum
2017-07-06 Some more nuances to the systemd debacle
2017-07-04 Podcast: Caching using Varnish
2017-07-02 Giving perspective on systemd’s “usernames that start with digit get root privileges”-bug

2017-06

2017-06-20 MariaDB MaxScale 2.1 defaulting to IPv6

2017-05

2017-05-31 HTTP/2 push is tougher than I thought
2017-05-24 Samba CVE-2017-7494: Remote Code Execution in Samba 3.5.0 and upwards
2017-05-19 CentOS 7.4 to ship with TLS 1.2 + ALPN
2017-05-19 (Dutch) Tech45 podcast #341: Technologica & WannaCry ransomware
2017-05-18 WordPress starts Bug Bounty program on HackerOne
2017-05-15 Ways in which the WannaCry ransomware could have been much worse
2017-05-08 Why the Next 10 Days Are Critical to the Internet’s Future
2017-05-08 Chrome to restore one-click certificate viewing in browser