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Daniel Nachtrub

Daniel Nachtrub

Kind of likes computers. Linux foundation certified: LFCS / CKA / CKAD / CKS. Microsoft certified: Cybersecurity Architect Expert & Azure Solutions Architect Expert.

Spamhaus is adjusting it's rbl return codes

Spamhaus is adjusting it's rbl return codes

Spamhaus is adjusting the RBL return codes that are served using their public mirrors. If you're using spamhaus, you should review your configuration.

Daniel Nachtrub
Daniel Nachtrub
Adding storage to a ceph cluster

Adding storage to a ceph cluster

Ceph is meant to store data. A natural requirement therefore is to add data to the cluster in order to provide the cluster the ability to actually store data. This article describes how to add storage to your existing cluster.

Daniel Nachtrub
Daniel Nachtrub
Linux
Debian - Kernelupdate via backports

Debian - Kernelupdate via backports

Working with machines running on debian is great - debian is a distribution that focuses on stable environments. Providing stability comes - as everything - with a cost: Packages provided with a distribution are not latest & greatest, they are proven. TL;DR Using debian backports is a good way

Daniel Nachtrub
Daniel Nachtrub
Linux
Running syslog in a container

Running syslog in a container

Many linux based applications are built with OS logging facilities in mind - especially syslog. This guide covers how to run syslog on a container workload.

Daniel Nachtrub
Daniel Nachtrub
Setting up a ceph cluster

Setting up a ceph cluster

Ceph is an open-source storage platform that is built on top of an object storage and provides different ways to build application storage on top. This article will focus on how to deploy a ceph cluster from zero.

Daniel Nachtrub
Daniel Nachtrub
Linux
Adding trusted root ca certificates on linux

Adding trusted root ca certificates on linux

This guide shows how to add trusted root cas on on debian or ubuntu based linux systems to enable seamless TLS encryption using your internal PKI.

Daniel Nachtrub
Daniel Nachtrub
The case of HTTP2 protocol error and chromium net-log

The case of HTTP2 protocol error and chromium net-log

Migrating some of our internally used services to a new reverse proxy layer i've been struggling with ERR_HTTP2_PROTOCOL_ERROR when accessing a migrated service.

Daniel Nachtrub
Daniel Nachtrub
Ceph - Upgrade feature levels

Ceph - Upgrade feature levels

Upgrading distributed systems implies running everything so it's compatible. Ceph is using feature maps to ensure compatibility. This article shows how to ugprade the feature level of a ceph cluster.

Daniel Nachtrub
Daniel Nachtrub
Linux