ck - yet another tech blog made in switzerland

After a Linux Kernel update on Debian 12, rsnapshot ran into SSH transfer issues.

Using Atomic Chat to self-host large language models and then connect AI agents to it.

After I decided to update NodeJS on my workstation, Claude Code Router (ccr) no longer worked.

Esports has become a thing - and with it a whole industry branch around it.

The newest release, 6.18.3, is a bugfix release and fixes or improves a couple of things.

After updating Gitlab, one particular background migration task (BackfillPartitionedWebHookLogsDaily) never finished.

The Grafana 13.1.1 Debian package contains an error in the post-installation script.

A new version of check_zpools is available which contains important bug fixes and a new feature to detect failed drives.

How to fix an error when using Claude Code in the Linux Terminal: API Error: 400 Error (text content blocks must contain non-whitespace text)

After upgrading a mail server from Debian 11 to 12, the Spamassassin service seems to be gone.

After a very long time, the ATX Power Supply (Corsair CX430) of my primary workstation has died.

Debian 13 ships with Python 3.13 - which is not compatible with the cqlsh installed from the Cassandra deb packages.

A regression was introduced in check_smart 6.18.1, which is now fixed.

A command injection vulnerability was fixed in this security release 6.18.1.

The check_powerdns_auth monitoring plugin not only checks PowerDNS and its statistics, but also alerts if a security release is available!

The newest release, 6.18.0, fixes an execution bug in FreeBSD and adds NVME i/o error detection.

Improved the monitoring plugin check_rabbitmq_queue to handle RabbitMQ without any queues.

After a Debian Linux server and its MariaDB was upgraded, mysqldump ran into warnings and mysql_upgrade would not work anymore.

After Debian was upgraded to Trixie, the Znuny Open Source Ticket System stopped working.

Attacks on Magento (Adobe Commerce) against the SessionReaper and PolyShell vulnerabilities are on the rise.

The latest release of check_mysql_slavestatus supports both MySQL and MariaDB replications and is backward compatible.

How Jili Games have become successful in creating responsive and entertaining online casino games.

The WordPress website builder Elementor ran into mysterious server errors (500 error) when trying to update a site.

An OpenWRT router showed significant packet losses on the internal LAN.

In Debian 13 (Trixie), a service reload of the SSH service runs into an error and service fails.

The check_zpools monitoring plugin now detects and alerts when a spare drive is in use in a ZFS Pool.

After a Debian distribution upgrade, Shell scripts using the mysql command stopped working.

After a Debian distribution upgrade, a Python script using solaredge-modbus library stopped working.

The newest release, 6.17.0, contains a fix and an enhancement from two individual open source contributors.

During a distribution upgrade from Debian 11 to 12, the Nginx LUA module got removed and caused a configuration error in Nginx.

iptables-restore did not restore the persistent iptables rules after a reboot.

The latest release 1.2.1 of the hybrid monitoring plugin check_ilorest adds power usage metrics of HPE ProLiant servers.

Attempted to switch to MariaDB Socket Authentication but mysql_secure_installation failed with MySQL Error 1146 (42S02).

The Prometheus metrics, including the HELP AND TYPE lines, must follow some rules.

check_ilorest is an open source monitoring plugin to monitor the hardware health of HPE ProLiant servers.

When the opendkim-testkey command runs into errors and shows dns query time out, it could be related to the default setting to use the DNS Root servers for queries.

Existing monitoring plugins will not work on Valkey with TLS and user authentication enabled.