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Docker: configure tzdata and timezone during build

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2 min read

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

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4 min read

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

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12 min read

#todayilearnedJira: filters and email notifications about tickets

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3 min read

AWS: CloudFormation – using lists in Parameters

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4 min read

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

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9 min read

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

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23 min read

Linux: no sound after suspend/sleep – the solution

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3 min read

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

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21 min read

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

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22 min read

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

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3 min read

AWS Elastic Kubernetes Service: running ALB Ingress controller

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9 min read

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

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8 min read

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

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8 min read

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

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12 min read

Linux: gnome-keyring setup as Freedesktop SecretService

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5 min read

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

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12 min read

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

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9 min read

PHP: PHP-FPM ignores environment variables – solutions

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3 min read

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

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8 min read

Kubernetes: ConfigMaps and Secrets on a Gorush server example

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6 min read

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

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3 min read

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

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5 min read

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

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8 min read

Bitwarden: shared MFA TOTP codes for Gmail accounts

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3 min read

KeePass: SSH keys passwords storage and decryption on Linux

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

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14 min read

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

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8 min read

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

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22 min read

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

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10 min read

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

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7 min read

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

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14 min read

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

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5 min read

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

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AWS: RDS Certificate Authority SSL certificate upgrade

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4 min read

Linux: Kazam – record a screencast

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2 min read

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

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15 min read

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

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16 min read

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

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9 min read

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

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3 min read

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

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7 min read

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

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5 min read

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

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4 min read

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

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5 min read

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

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3 min read

Jenkins: SAML Authentication with Okta and users groups

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7 min read

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

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7 min read

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

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2 min read

Okta: the Custom domain and TLS configuration

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4 min read

Okta: SSO authentication for Gmail and Slack

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3 min read

Jenkins: Docker Compose deployment from Ansible with ECR authentication

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6 min read

Linux: persistent logs in systemd-journald

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2 min read

OpsGenie: Uptrends integration

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2 min read

AWS: create an Elastic Container Registry and Jenkins deploy job

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4 min read

CloudFlare: CDN configuration for AWS S3 website hosting

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4 min read

Redis: main configuration parameters and performance tuning overview

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12 min read

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

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14 min read

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

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1 min read

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

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4 min read

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

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19 min read
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