Wieger Bontekoe - Bontekoe Technology

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Wieger Bontekoe

Correcting timezone in Docker Container

# no effect: root@container:/# cat /etc/timezone Europe/Amsterdam root@container:/# dpkg-reconfigure tzdata Current default time zone: 'Etc/UTC' Local time is now: Mon Nov 6 16:40:04 UTC 2023. Universal Time is now: Mon Nov 6 16:40:04 UTC 2023. # solution: root@container:/# TZ=Europe/Amsterdam root@

PowerDNS cheat sheet

Create a new zone pdnsutil create-zone bontekoe.technology Add a DNS record pdnsutil add-record bontekoe.technology @ NS ns1.bontekoe.technology pdnsutil add-record bontekoe.technology @ NS ns2.bontekoe.technology Add a first record pdnsutil add-record bontekoe.technology test A 192.168.1.2 Check for errors pdnsutil check-all-zones Sync zone to

Sign git commits with SSH keys

Sign git commits with SSH keys

OpenSSH 8.0 or newer is required and Git 2.34.0. If no key exists yet, it can be created; ssh-keygen -t ed25519 Today, the RSA is the most widely used public-key algorithm for SSH key. But compared to Ed25519, it's slower and even considered not safe if it's

tcpdump cheat sheet

tcpdump cheat sheet

tcpdump is a data-network packet analyzer computer program that runs under a command line interface. It allows the user to display TCP/IP and other packets being transmitted or received over a network to which the computer is attached. ##TCP FLAGS## Unskilled = URG = (Not Displayed in Flag Field, Displayed elsewhere)