yilgo

97 posts

Scribbles of a Platform Engineer

openshift

•Oct 12, 2025

Upgrade Openshift Cluster Logging Operator from 5 to 6

Openshift Cluster Logging Operator Upgrade

Written by yilgo

azure

•Sep 13, 2025

How Fix Certificate Error on Azure Self-Hosted Agent

Fix Certificate Error on Azure Self-Hosted Agent

Written by yilgo

embedded_systems

•Aug 03, 2025

How to Make Simple IR Sender(Samsung TV)

Written by yilgo

embedded_systems

•Jul 20, 2025

Hack Remote IR Controller with Logic Analyzer

Written by yilgo

repair

•Jul 20, 2025

My Repair Note on DC – AC Inverter

Written by yilgo

openshift kubernetes

•Jul 20, 2025

OCP Upgrade with Canary Rollout Strategy

Written by yilgo

linux embedded_systems

•Feb 23, 2025

Share Serial Devices with WSL Machine

Written by yilgo

terraform

•Feb 23, 2025

Provide Terraform providers in Air gapped Environment

Written by yilgo

fix embedded_systems

•Feb 23, 2025

PlatformIO Bug with VSCode Plugin in WSL Environment

Written by yilgo

embedded_systems IoT

•Jan 25, 2025

How to Update Time without NTP or GPS

Written by yilgo

kubernetes prometheus monitoring proftpd

•Dec 08, 2024

Export ProFTPD Metrics into Prometheus or InfluxDB

Written by yilgo

azure packer

•Dec 07, 2024

Creating a Customized Golden Image for Azure Cloud with Packer

Written by yilgo

repair

•Dec 07, 2024

Don’t Make Popcorn in Air Fryer!

Don’t Make Popcorn in Air Fryer

Written by yilgo

security

•Mar 18, 2024

Vault Patch Method

Written by yilgo

security

•Mar 18, 2024

OpenShift Global Pull Secret

Written by yilgo

security

•Dec 17, 2023

check-certificate.sh

Written by yilgo

security

•Dec 17, 2023

walk.sh(HC Vault)

Written by yilgo

kubernetes cert-manager security

•Dec 17, 2023

Issuing Certificate with cert-manager

Written by yilgo

monitoring alerting slack opsgenie jenkins

•Nov 24, 2023

Slack Notification and Opsgenie Alerting in Jenkins

Written by yilgo

kubernetes nginx ingress fix

•Apr 09, 2023

nginx-ingress Websocket Connection

nginx-ingress

Written by yilgo

security

•Jan 07, 2023

HashiCorp Vault Disk Inode Is Full

Written by yilgo

checkmk monitoring

•Dec 09, 2022

CheckMK Programmatic Hostdowntime

Written by yilgo

checkmk monitoring

•Nov 11, 2022

Satellite Compute Resource Provider Password Update

Written by yilgo

kubernetes microk8s

•Dec 28, 2021

Multinode Kubernetes Cluster with LXC and microk8s

Written by yilgo

linux kvm automation

•Mar 18, 2021

Ubuntu Autoinstall

Written by yilgo

vault security ldap

•Jan 10, 2021

HashiCorp Vault LDAP Integration

Written by yilgo

security ldap

•Dec 25, 2020

OpenLDAP Server Installation, Configuration and Hardening

Written by yilgo

satellite ansible

•Nov 27, 2020

Red Hat Satellite Ansible Dynamic Inventory

Written by yilgo

gce cloud

•Nov 25, 2020

Creating a VM on GCE via gcloud cli

Written by yilgo

buildah kubernetes

•Oct 30, 2020

Building Container Image with Buildah

Written by yilgo

gpu nvidia

•Sep 15, 2020

Configure NVIDIA GPU on ESXi to be used by VMs

Written by yilgo

bgp kubernetes metallb

•Aug 30, 2020

Kubernetes MetalLB Loadbalancer with BGP mode

Written by yilgo

vlan netplan networking

•Aug 13, 2020

Creating Bridges and VLANs with Netplan

Written by yilgo

ipv6 networking

•Jul 16, 2020

Finding Server IMM IP by IPv6 Multicast Address

Written by yilgo

kvm linux automation

•Apr 17, 2020

Provisioning a VM on KVM via Kickstart using virt-install

Written by yilgo

linux

•Feb 12, 2020

MaaS Mac Filtering

Written by yilgo

kvm linux terraform jenkins

•Dec 26, 2019

VM provisioning with Jenkins and Terraform(Cloud-init) on KVM

Written by yilgo

kvm linux terraform jenkins

•Dec 23, 2019

VM provisioning with Jenkins and Terraform on KVM

Written by yilgo

linux networking

•Dec 16, 2019

Compiling Archer T600U Plus WiFi USB Adapter on GNU/Linux with dkms

Written by yilgo

monitoring checkmk

•Sep 14, 2019

Write Your own Custom Plugin on checkMK

Written by yilgo

linux kvm networking

•Feb 22, 2019

Connect KVM host over GRE

Written by yilgo

linux

•Feb 01, 2019

DRBD(without clustering)

Written by yilgo

linux networking

•Jan 25, 2019

Checking Connection without Telnet

Written by yilgo

docker kubernetes

•Jan 04, 2019

Minimizing Docker Images with Multistage

Written by yilgo

linux

•Dec 05, 2018

Building RHEL7 Cluster Part I

Written by yilgo

windows powershell

•Nov 30, 2018

Sorting by Specific Column in PowerShell

Written by yilgo

linux

•Sep 05, 2018

How to Change I/O Scheduler in Linux

Written by yilgo

linux networking

•Jul 06, 2018

Sharing Internet in Linux

Written by yilgo

oracle linux

•Jun 22, 2018

Oracle EMCLI II

Written by yilgo

linux

•May 04, 2018

Finding ORA and SP2 Errors with grep

Written by yilgo

linux oracle

•Apr 27, 2018

Oracle RMAN backup through emcli

Written by yilgo

linux oracle

•Apr 20, 2018

Connection to the current OMS could not be established

Written by yilgo

linux kvm windows

•Apr 06, 2018

Windows Server 2012 R2 hangs on the KVM hypervisor

Written by yilgo

fix networking

•Mar 23, 2018

Aruba VAN SDN Controller

Written by yilgo

embedded_systems

•Mar 07, 2018

LM35 Temperature Sensor with Atmega328P

Written by yilgo

linux

•Jan 19, 2018

Diskless Machine

Written by yilgo

linux

•Jan 13, 2018

How to Create Red Hat HA Cluster Part IV

Red Hat HA Cluster Part IV

Written by yilgo

linux

•Jan 13, 2018

How to Create Red Hat HA Cluster Part III

Red Hat HA Cluster Part III

Written by yilgo

linux

•Jan 07, 2018

Red Hat HA Cluster Part I

Written by yilgo

linux

•Jan 07, 2018

How to Create Red Hat HA Cluster Part II

Red Hat HA Cluster Part II

Written by yilgo

linux

•Dec 24, 2017

SSL Client Certificate Authentication with Apache

Written by yilgo

linux

•Dec 18, 2017

Fake Kernel Panic for Testing(Magic SysRq)

Written by yilgo

linux

•Dec 12, 2017

System Restore with Rsync

Written by yilgo

kvm linux networking

•Nov 25, 2017

Vlan Creation on KVM

Written by yilgo

linux

•Nov 12, 2017

Configuring PAM for crontab

Written by yilgo

linux

•Nov 02, 2017

CPU Affinity

Written by yilgo

linux kvm

•Oct 20, 2017

Adding Shared disk on KVM

Written by yilgo

linux

•Oct 19, 2017

Removing and Rescanning SCSI Disk

Written by yilgo

ansible

•Oct 14, 2017

Sending Mail with Ansible

Written by yilgo

linux

•Oct 01, 2017

Multipath with iSCSi

Written by yilgo

linux kvm

•Sep 17, 2017

Mounting QCOW2 Disk

Written by yilgo

linux zmodem

•Sep 09, 2017

Z-Modem

Written by yilgo

linux snmp

•Sep 05, 2017

SNMP-1

Written by yilgo

security

•Aug 19, 2017

Apache as a Forward Proxy

Written by yilgo

ansible

•Aug 15, 2017

Ansible Sample Scripts

Written by yilgo

linux

•Aug 05, 2017

Syslog Server Configuration

Written by yilgo

gns3 networking

•Jul 30, 2017

GNS3 Permission Denied

Written by yilgo

vmware rhel linux

•Jul 22, 2017

VMware Hot-Add RAM on Rhel 5

Written by yilgo

security tsocks

•Jul 22, 2017

SOCKS

Written by yilgo

linux automation

•Jul 22, 2017

Sample Expect Script

Written by yilgo

linux

•Jul 16, 2017

Screen & Rsync

Written by yilgo

networking gns3

•Jul 09, 2017

Connect to Real World With GNS3

Written by yilgo

networking

•Jun 25, 2017

Port Forwarding on Windows 10

Written by yilgo

security

•Jun 06, 2017

SSL Validation and Troubleshooting

Written by yilgo

packer automation

•Mar 24, 2017

Packer

Written by yilgo

security

•Mar 24, 2017

SSH Two-Factor Authentication

Written by yilgo

kickstart rhel

•Mar 19, 2017

Kick Start Questions and Answers

Written by yilgo

java timezone

•Mar 17, 2017

Java TimeZone Update

Written by yilgo

linux bash

•Mar 12, 2017

Sending an Email Using Shell

Written by yilgo

linux

•Mar 11, 2017

Finding out per process Swap usage

Written by yilgo

security

•Mar 11, 2017

Encrypting with aespipe

Written by yilgo

networking

•Mar 11, 2017

Find your Public IP in Terminal

Written by yilgo

security duckdns dyndns

•Mar 11, 2017

Dynamic DNS

Written by yilgo

embedded_systems

•Dec 25, 2016

Measuring a Temperature with DS18B20

Written by yilgo

security

•Dec 11, 2016

Redirecting http to https

Written by yilgo

security

•Nov 27, 2016

Port Knocking

Written by yilgo

security

•Nov 24, 2016

Free SSL Certificate

Written by yilgo

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