Dennis Kruyt

Running a mailserver in Kubernetes

Running a mailserver in Kubernetes

Running a webserver in Kubernetes is easy, but a mailserver is more challenging. Most of the challenging things has todo with your ip infrastructure, ingress and loadbalancer within Kubernetes. Here

19 Oct 2020 • 3 min read

Varnish in Kubernetes

Varnish in Kubernetes

This is a simple minimal but highly configurable Varnish caching service for Kubernetes. This should be placed between your ingress and your application service. simple setupIt can be used in

15 Sep 2020 • 3 min read

Fortinet Fortigate in Grafana

Fortinet Fortigate in Grafana

To get metrics from your FortiGate in Grafana using Telegraf and InfluxDB. Enable SNMP on your FortiGatePut the following telegraf config in your /etc/telegraf/telegraf.d directoryEdit the the

21 Jun 2020 • 2 min read

Passed the Red Hat RHCSA exam

Passed the Red Hat RHCSA exam

Today I passed the Red Hat RHCSA exam with the maximum 300/300 100% score! 😁 I had a good feeling during the exam, and after about an hour I got

6 Feb 2020 • 1 min read

SUSE SLES 15 Container in LXD

SUSE SLES 15 Container in LXD

I am a big fan of LXD and lot of my 'home infra' and VPS's are all running LXD container. Also I am using LXD at work to create test

20 Jan 2020 • 2 min read

Ansible CICD pipeline with GitLab

Ansible CICD pipeline with GitLab

In this post I will show how I use GitLab CICD with Ansible. I'll show the pipelines and how the merge requests are handled for full control and auditing. GitLab

17 Jan 2020 • 5 min read

3d print project, lampshade

3d print project, lampshade

A couple of weeks ago I gave myself a 3d print for a present. 😝 I opted for a Creality Ender 3 pro and order it from Ali Express. With the

9 Dec 2019 • 3 min read

Ghost blog caching with Varnish

Ghost blog caching with Varnish

In this post I show a few of my tip's for using Varnish for caching and Ghost together. Don't cache everythingCaching is good, but we don't want to cache everything

6 Oct 2019 • 3 min read

ZeroTier on a Ubiquiti EdgeRouter (part 2)

ZeroTier on a Ubiquiti EdgeRouter (part 2)

In my previous post I showed how to install ZeroTier on the EdgeRouter, after installing we need to rename the ZeroTier interface to ethx interface to show up in EdgeOS.

27 Sep 2019 • 3 min read

MySQL tuning

MySQL tuning

At my work in the past I needed to trouble shoot and tune MySQL installations. Here are some best practises I have used.

24 Sep 2019 • 4 min read

Linux disk performance tuning

Linux disk performance tuning

Some option in Linux that can be used for disk related performance tuning.

22 Sep 2019 • 4 min read

Instagram/Facebook HELO/SPF fail

Instagram/Facebook HELO/SPF fail

I am trying to get an email from instagram, but I wasn't receiving it. Upon checking my mail logs I see the following log message. Sep 13 03:50:51

13 Sep 2019 • 4 min read

ZeroTier on a Ubiquiti EdgeRouter

ZeroTier on a Ubiquiti EdgeRouter

31 Aug 2019 • 5 min read

My BBQ creations

My BBQ creations

27 Aug 2019 • 2 min read

Fortinet FortiADC in Grafana

Fortinet FortiADC in Grafana

21 Aug 2019 • 1 min read

Docsis stats from ARRIS Ziggo modem

Docsis stats from ARRIS Ziggo modem

16 Aug 2019 • 3 min read

MOINK Balls

MOINK Balls

MOINK Balls? What is a MOINK? The name MOINK is a fusion of the sounds the animals (meat) from which these balls are made, Moo and Oink. Moo for the

15 Aug 2019 • 2 min read

Zabbix Pushover Alert script

Zabbix Pushover Alert script

At home and at work we are running Zabbix for monitoring, for alerting I use Pushover. There are some scripts that have Zabbix and Pushover integration on share.zabbix.com,

14 May 2019 • 2 min read

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