Arseny Zinchenko

location

Kiev, Ukraine

joined

Sep 16, 2017

Arseny Zinchenko

May 17

Docker: configure tzdata and timezone during build

#docker #automation

2 min read

AWS: CloudFormation - using Conditions, Fn::Equals, and Fn::If - an example

#aws #automation #tutorial

4 min read

Arseny Zinchenko

May 16

Helm: helm-secrets — sensitive data encryption with AWS KMS and use it from Jenkins

#kubernetes #aws #security #tutorial

12 min read

Arseny Zinchenko

May 10

#todayilearnedJira: filters and email notifications about tickets

#agile #todayilearned #productivity

3 min read

Arseny Zinchenko

May 8

AWS: CloudFormation – using lists in Parameters

#aws #devops #automation #tutorial

4 min read

Arseny Zinchenko

May 5

#todayilearnedHelm: Kubernetes package manager — an overview, getting started

#kubernetes #tutorial #devops #todayilearned

9 min read

Arseny Zinchenko

May 4

AWS Elastic Kubernetes Service: a cluster creation automation, part 2 — Ansible, eksctl

#kubernetes #aws #devops #tutorial

23 min read

Arseny Zinchenko

Apr 30

Linux: no sound after suspend/sleep – the solution

#troubleshooting #linux

3 min read

Arseny Zinchenko

Apr 26

Kubernetes: monitoring with Prometheus – exporters, a Service Discovery, and its roles

#kubernetes #aws #tutorial #devops

21 min read

Arseny Zinchenko

Apr 24

AWS Elastic Kubernetes Service: a cluster creation automation, part 1 – CloudFormation

#aws #devops #kubernetes #tutorial

22 min read

Arseny Zinchenko

Apr 24

Google Drive: using via terminal on Linux Debian 9 with insync-headless

#linux #google

3 min read

Arseny Zinchenko

Apr 21

AWS Elastic Kubernetes Service: running ALB Ingress controller

#aws #kubernetes #tutorial

9 min read

Arseny Zinchenko

Mar 26

Kubernetes: part 5 — RBAC authorization with a Role and RoleBinding example

#aws #kubernetes #security #tutorial

10 1

8 min read

Arseny Zinchenko

Mar 14

#todayilearnedLinux: processes core dumps, systemd-coredump and Debian

#linux #tutorial #todayilearned

8 min read

Arseny Zinchenko

Feb 29

#todayilearnedAWS: CloudFormation – Nested Stacks and stacks parameters Import/Export

#aws #tutorial #todayilearned

12 min read

Arseny Zinchenko

Feb 27

Linux: gnome-keyring setup as Freedesktop SecretService

#linux #security

5 min read

Arseny Zinchenko

Feb 26

Redis: “psync scheduled to be closed ASAP for overcoming of output buffer limits” and the client-output-buffer-limit

#database #monitoring #redis

12 min read

Arseny Zinchenko

Feb 24

#todayilearnedLinux: PHP-FPM, Docker, STDOUT and STDERR – no an application’s error logs

#docker #php #linux #todayilearned

9 min read

Arseny Zinchenko

Feb 19

PHP: PHP-FPM ignores environment variables – solutions

#php #troubleshooting #kubernetes

3 min read

Arseny Zinchenko

Feb 15

Kubernetes: running metrics-server in AWS EKS for a Kubernetes Pod AutoScaler

#aws #kubernetes #monitoring #tutorial

8 min read

Arseny Zinchenko

Feb 14

Kubernetes: ConfigMaps and Secrets on a Gorush server example

#kubernetes #tutorial

6 min read

Arseny Zinchenko

Feb 14

Kubernetes: ConfigMap and Secrets – data auto-reload in pods

#kubernetes #tutorial

3 min read

Arseny Zinchenko

Feb 6

Kubernetes: running a push-server with Gorush behind an AWS LoadBalancer

#aws #kubernetes #tutorial

5 min read

Arseny Zinchenko

Jan 9

Calibre Web: home in-browser online-library with Nextcloud storage and Moon+ Reader on Android

#android #docker

8 min read

Arseny Zinchenko

Jan 6

Bitwarden: shared MFA TOTP codes for Gmail accounts

#security #passwords

3 min read

Arseny Zinchenko

Dec 13 '19

KeePass: SSH keys passwords storage and decryption on Linux

#linux #security #encryption #ssh

4 min read

Arseny Zinchenko

Dec 12 '19

KeePass: an MFA TOTP codes, a browser’s passwords, SSH keys passwords storage configuration and Secret Service integration

#linux #security #tutorial

14 min read

Arseny Zinchenko

Dec 10 '19

#todayilearnedChromium: Linux, keyrings && Secret Service, passwords encryption and store

#security #linux #todayilearned

8 min read

Arseny Zinchenko

Dec 7 '19

What is: Linux keyring, gnome-keyring, Secret Service, and D-Bus

#archlinux #linux #security #encryption

22 min read

Arseny Zinchenko

Dec 1 '19

SSH: RSA keys, and ssh-agent for SSH keys and their passwords management

#linux #security #ssh #passwords

10 min read

Arseny Zinchenko

Dec 2 '19

#todayilearnedLinux: the Nextcloud client, qtkeychain and the “The name org.freedesktop.secrets was not provided by any .service files” error

#linux #archlinux #todayilearned

7 min read

Arseny Zinchenko

Nov 30 '19

Nextcloud: running in Docker Compose on Debian with Let’s Encrypt SSL

#linux #docker #ssl #tutorial

14 min read

Arseny Zinchenko

Nov 25 '19

Arch Linux: key could not be imported – required key missing from keyring

#archlinux #linux

5 min read

Arseny Zinchenko

Nov 23 '19

#todayilearnedHTTP: redirects, POST and GET requests, and the "lost data"

#nginx #webdev #http #todayilearned

12 min read

Arseny Zinchenko

Nov 22 '19

AWS: RDS Certificate Authority SSL certificate upgrade

#aws #security #cloud

4 min read

Arseny Zinchenko

Nov 21 '19

Linux: Kazam – record a screencast

#linux #video

2 min read

Arseny Zinchenko

Nov 17 '19

Grafana: Loki – the LogQL’s Prometheus-like counters, aggregation functions, and dnsmasq’s requests graphs

#monitoring #tutorial #devops

15 min read

Arseny Zinchenko

Nov 17 '19

What is: SAML – an overview, its structure, and requests tracing between a Jenkins and Okta SSO

#jenkins #security

16 min read

Arseny Zinchenko

Oct 28 '19

dnsmasq: AWS – “Temporary failure in name resolution”, logs, debug and dnsmasq cache size

#aws #monitoring #dns

9 min read

Arseny Zinchenko

Oct 26 '19

Arch Linux: package-query: error while loading shared libraries: libalpm.so.11

#archlinux #troubleshooting

6 2

3 min read

Arseny Zinchenko

Oct 25 '19

Okta: G-Suite integration – provisioning and users import and export

#tutorial #security

7 min read

Arseny Zinchenko

Oct 21 '19

Github: SAML, Okta, and Github Enterprise Cloud – Organization SSO configuration

#git #security #tutorial

5 min read

Arseny Zinchenko

Oct 18 '19

AWS: Redshift – quick start and SQL-workbench connection configuration

#aws #database #bigdata

4 min read

Arseny Zinchenko

Oct 15 '19

Jenkins: SAML, Okta, user groups, and Role-Based Security plugin

#jenkins #security #sso #okta

5 1

5 min read

Arseny Zinchenko

Oct 14 '19

OpenVPN: the No route to host and ERR_ADDRESS_UNREACHABLE errors – the cause and a solution

#networking #openvpn #security

3 min read

Arseny Zinchenko

Oct 12 '19

Jenkins: SAML Authentication with Okta and users groups

#devops #jenkins #security

7 1

7 min read

Arseny Zinchenko

Oct 10 '19

Vertica: a simple cluster set up and configuration on AWS EC2

#aws #database #vertica

7 min read

Arseny Zinchenko

Oct 9 '19

Debian: logrotate won’t rotate logs with an “unknown group ‘syslog'” error

#debian #logs

2 min read

Arseny Zinchenko

Oct 11 '19

Okta: the Custom domain and TLS configuration

#sso #dns #ssl

4 min read

Arseny Zinchenko

Oct 10 '19

Okta: SSO authentication for Gmail and Slack

#security #okta #sso #authentification

3 min read

Arseny Zinchenko

Oct 28 '19

Jenkins: Docker Compose deployment from Ansible with ECR authentication

#docker #devops #tutorial #aws

6 min read

Arseny Zinchenko

Oct 7 '19

Linux: persistent logs in systemd-journald

#linux #logs #systemd #journald

2 min read

Arseny Zinchenko

Sep 24 '19

OpsGenie: Uptrends integration

#monitoring

2 min read

Arseny Zinchenko

Sep 27 '19

AWS: create an Elastic Container Registry and Jenkins deploy job

#jenkins #docker #aws

4 min read

Arseny Zinchenko

Sep 23 '19

CloudFlare: CDN configuration for AWS S3 website hosting

#aws #cdn #cloudflare

4 min read

Arseny Zinchenko

Sep 10 '19

Redis: main configuration parameters and performance tuning overview

#database #networking #redis #linux

12 min read

Arseny Zinchenko

Sep 3 '19

Kubernetes: part 4 – AWS EKS authentification, aws-iam-authenticator, and AWS IAM

#aws #kubernetes #security

14 min read

Arseny Zinchenko

Aug 31 '19

Answer: Difference between "\n" and "\r"?

1 min read

Arseny Zinchenko

Aug 29 '19

SonarQube: solving “Unrecoverable indexation failures” and Elasticsearch “Disk watermark exceeded” errors

#jenkins #sonarqube #elasticsearch

4 min read

Arseny Zinchenko

Aug 28 '19

Redis: fork – Cannot allocate memory, Linux, virtual memory and vm.overcommit_memory

#database #linux #memory #redis

19 min read

Arseny Zinchenko

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