You can find many tricky code snippets in the following sections:

Bind

• all about configuring bind
  
  
• how we can use BIND9
  
  

Dms

• how to back my mailserver up
  
  
• advanced configs of postfix and other services
  
  
• how to debug email smtp
  
  
• all about configuring dkim in DMS
  
  
• how to dockerize
  
  
• start with DMS
  
  
• setup script commands
  
  
• problems with docker mail server
  
  

Elk

• what is ELK and how we can deploy it
  
  

Osrm

• all about Open Source Routing Machine
  
  

Algo

• what is Dijkstra and how we can implement it
  
  
• Dynamic Programming (DP)
  
  

Api_client

• best alternative for postman
  
  
• what is the best api client tool?
  
  

Api_mock

• how to create mock APIs
  
  

Apprise

• send notif using wide range of services using only URL
  
  

Article

• Graphs
  
  
• some techniques for writing papers
  
  

Automation

• how to set up infrastructure of cc servers with MPS gpu equipped
  
  

Aws

• aws services pricing
  
  
• all about s3 storages
  
  

Bash

• kinds of aliases
  
  
• apt and apt-get hacks
  
  
• Cat
  
  
• how make the bash output colorful
  
  
• df command
  
  
• disown in bash
  
  
• Disk Usage command
  
  
• Environmental Variables VS. Shell Variables
  
  
• expand varibales in a file or text
  
  
• how prevent exec from opening new shell
  
  
• all types of expansion
  
  
• Extended_regex
  
  
• find hacks
  
  
• get custom config lines
  
  
• Bash built-in to manage the command line options
  
  
• how to work with grep
  
  
• All about Here Documents in shell
  
  
• general information and hacks
  
  
• how to work with printf in bash
  
  
• all about ps tool
  
  
• Random
  
  
• all about read command
  
  
• root tricks
  
  
• all tricks about sed
  
  
• change a run-time parameter with set
  
  
• managing signals in bash scripting
  
  
• use stat to get the props of file and directory
  
  
• sudo command details
  
  
• all about using tar in linux
  
  
• duplicate the output stream
  
  
• all about variables in bash
  
  
• xargs - sed - docker
  
  

Bitbucket

• Pipeline
  
  

Business_intelligence

• visualize database by Metabase
  
  

Cdn

• all about using CDN
  
  

Certbot

• how to work with certbot?
  
  

Circleci

• Index
  
  

Clickhouse

• ClickHouse - The column-based database (OLAP)
  
  

Cloudflare

• Cloudflare Access allows you to securely publish internal tools and applications to the Internet
  
  
• use maintenance mode in CF
  
  
• Cloudflare Zero Trust replaces legacy security perimeters with Cloudflare’s global network
  
  
• redirect by CF
  
  
• Secure Access Service Edge (SASE) Architecture
  
  
• create workers in CF
  
  

Cpu

• Illegal instruction (core dumped) - returned a non-zero code - 132
  
  
• Index
  
  
• CPU models
  
  

Crontab

• how to set environment for cron jobs
  
  
• all about crontab
  
  
• how we can test our crons
  
  
• current working directory when running cron jobs
  
  

Cs

• What is CAP theorem?
  
  

Css

• all about CSS selectors
  
  

Cuda

• nvidia CUDA for concurrency
  
  

Curl

• all about curl
  
  

Data_science

• all about Project Jupyter
  
  
• some hacks in pandas
  
  

Date

• Index
  
  

Dbus

• DBus
  
  

Debian

• auto debian systems config
  
  
• CIS benchmarks
  
  
• how to control the hot corners
  
  
• major settings
  
  
• all about installations in Debian
  
  

Deploy

• Deploy Django-NextJs with systemd and pm2 in Debian 12
  
  
• step by step to reproduce a cloud server with docker compose stack
  
  
• Methods
  
  

Dhcpclient

• all about DHCPclient
  
  

Display_manager

• all dispaly managers
  
  

Diun

• docker registry watcher
  
  

Divar

• Divar Co. docs for KenarDivar
  
  

Django

• all about Django admin and management
  
  
• all about auth in django
  
  
• bulk create
  
  
• add cache to django
  
  
• how to enable celery in django
  
  
• CKEditor to use in Django Admin
  
  
• all about django Command
  
  
• what is django debug toolbar (djdt)
  
  
• django-health-check library
  
  
• django sample dockerfile and compose
  
  
• all about Django Rest Framework (DRF)
  
  
• Django Elasticsearch DSL
  
  
• django dumpdata and loaddata commands
  
  
• email in django
  
  
• all about using env in django projects
  
  
• all about i18n in Django
  
  
• logging in django
  
  
• manage.py commands
  
  
• Manager
  
  
• migrations in Django
  
  
• models and the model instances in Django
  
  
• add OpenAPI to django
  
  
• Policies
  
  
• sample django projects
  
  
• QuerySet lookups and methods
  
  
• all types of relationships in models
  
  
• django secret key
  
  
• select_related or prefetch_related?
  
  
• what is select_for_update
  
  
• how to work with serializers
  
  
• work with sesssions
  
  
• how to set/change the user password in django
  
  
• all about django settings
  
  
• how we should work with signals in Django
  
  
• Django sites framework
  
  
• how to work with static files
  
  
• how to work with superuser in django
  
  
• all about test in django
  
  
• how timezone works in django?
  
  
• add more type hints to Django
  
  
• Views - Dispatcher
  
  

Dns

• install local dns
  
  
• the desription about all type of DNS records
  
  
• all about the resolv.conf file in linux
  
  
• DNS online tools
  
  

Docker

• how to use docker API for different scenarios
  
  
• streamline the building images workflow
  
  
• all about build in docker
  
  
• cache in docker
  
  
• all about docker cli
  
  
• all about CMD in dockerfile
  
  
• create docker image from container
  
  
• all about docker compose
  
  
• all about docker container command
  
  
• /etc/docker/daemon.json VS. $HOME/.docker/config.json
  
  
• all about docker ps formatting
  
  
• dockerfile reference
  
  
• docker registry client
  
  
• env vars in docker
  
  
• monitor real-time events, including service creation, updates, and failures
  
  
• work with linux firewall rules for docker
  
  
• how to write health-checks for docker compose services
  
  
• work with docker image
  
  
• all about docker
  
  
• Inspect
  
  
• install docker engine
  
  
• how to change docker0 network and docker bridges ip range
  
  
• limit docker resources and watch the live resource usage
  
  
• Logs
  
  
• migrate docker data
  
  
• work around for 403
  
  
• all about monitoring docker containers
  
  
• all about mount in docker
  
  
• all about networking in docker
  
  
• orchestration with docker
  
  
• monitor processes inside a container
  
  
• how to free space in docker
  
  
• Ps
  
  
• Push
  
  
• docker registry install and configurations
  
  
• Resources
  
  
• script to remove old images
  
  
• docker run flags
  
  
• dokcer secrets
  
  
• shared memory (RAM) on /dev/shm
  
  
• monitoring container resource usages
  
  
• all about docker swarm
  
  
• how to work with docker system command
  
  
• Tag
  
  
• step-by-step instructions on how to get started with Docker
  
  
• how we can make use of ufw at the same time of docker
  
  
• dokcer update
  
  
• all about docker volume command
  
  

Docker_compose

• docker compose config options
  
  
• all about Docker Compose
  
  
• Networks
  
  
• project name in docker compose
  
  
• Services
  
  
• all about docker compose up
  
  

Elasticsearch

• all about using ElasticSearch
  
  

Electricsql

• Local-first sync layer for web and mobile apps
  
  

Ffmpeg

• how to convert and edit videos
  
  

Finnotech

• the main concepts about Finnotech
  
  

Firefox

• all about FireFox browser
  
  

Firewall

• all about iptables
  
  
• linux kernel firewall
  
  
• how to work with apps in ufw
  
  

General

• useful links in different subjects
  
  
• what is Monkey Patch?
  
  
• REPL - Read-Eval-Print Loop
  
  
• Server Side Web frameworks
  
  

Geo_spatial

• all about geo spatial
  
  

Git

• how to find the first appearance of a bug in commits
  
  
• how to write good commit messages
  
  
• tools for Git Hooks
  
  
• all about git pull
  
  
• how to rebase all commits to only one commit
  
  
• Git Rebase
  
  
• Lost your commits? Do reflog and revert
  
  
• how we can completely remove the credentials form git repos
  
  
• how to use stash better
  
  
• Git submodules
  
  
• commands to troubleshoot git problems
  
  

Github

• all about github education plan
  
  
• good github CLI extensions
  
  
• basic concepts
  
  

Github_actions

• differnet actions
  
  
• how to store artifacts
  
  
• all about defining github actions config files
  
  
• sample workflows
  
  

Gitlab

• Control access and visibility
  
  
• all about Gitlab API
  
  
• how to backup gitlab
  
  
• all about Gitlab CI
  
  
• gitlab.rb configs
  
  
• Docker in Docker (dind)
  
  
• all about using docker in gitlab ci
  
  
• Environments
  
  
• extends keyword and its examples
  
  
• general notes
  
  
• configure Gitali in gitlab
  
  
• Gitlab Ci File
  
  
• control the gitlab configs
  
  
• all about gitlab-rails command
  
  
• all about gitlab self-host
  
  
• Gitlab install
  
  
• how to connet jira to gitab
  
  
• job group, hide job, inheritance, delay job, deployment jobs
  
  
• Lfs
  
  
• push size, repo size, ...
  
  
• how can I test emails in GitLab
  
  
• monitoring in gitlab
  
  
• Gitlab Omnibus
  
  
• pipeline types, define pipeline varibale, settings
  
  
• all about postgres in gitlab
  
  
• configure puma, fast HTTP server
  
  
• Rails Console
  
  
• Recommended deployments for target loads
  
  
• Gitlab Container Registry
  
  
• how enable remote development (to run code in terminal,...)
  
  
• how to restore gitlab
  
  
• all about working with runners in gitlab ci
  
  
• Script
  
  
• snippets in GitLab
  
  
• all stages, from .pre to .post and their usage
  
  
• how you can have a repo which uses submodules
  
  
• how to write gitlab ci files
  
  
• Tags
  
  
• gitlab template jobs
  
  
• all tokens in Gitlab
  
  
• all about triggerer jobs in ci file
  
  
• how we should upgrade the gitlab
  
  
• all about gitlab ci/cd variables
  
  

Gnome

• helpful GNOME extensions
  
  
• all about working with gnome
  
  

Google

• create and work with Google Bucket
  
  
• All about Google Cloud
  
  
• how we should work with Google Console and other development tools
  
  
• how to work with GA4
  
  
• gcloud prices
  
  
• Google Tag
  
  
• all about Google Marketing Platform
  
  
• Tag Manager(gtm)
  
  

Google-drive-ocamlfuse

• some Google Drive client
  
  

Gpg

• how to work with gpg keys in apt
  
  
• how to work with GPG keys
  
  

Gpu

• All about CUDA
  
  
• Nvidia Data Center GPU Management
  
  
• how to install the driver
  
  
• Nvidia GPU Kubernetes Plugin
  
  
• how we should get all logs of nos?
  
  
• how we should install nos to enable MPS?
  
  
• Nvidia GPU Operator
  
  
• Nvidia Tesla V100
  
  
• GPU time-slicing
  
  
• Triton
  
  

Graphviz

• all about graphviz
  
  

Gunicorn

• how to configure and use gunicorn
  
  
• rotate gunicorn lgos with logrotate
  
  

Helm

• all about Helm
  
  
• Template
  
  
• Upgrade
  
  
• work with helm values
  
  

Inference

• Inference Systems Techniques
  
  
• Instances
  
  
• Quantization & Layering to reduce memory fingerprint
  
  

Ipv6

• Index
  
  

Jira

• install jira on server
  
  
• how to have RTL in jira
  
  

K3s

• lightweight k8s (k3s)
  
  

Kde

• all about KDE based linux desktops
  
  

Kubectl

• all about kubectl kubernetes cli
  
  
• detail of working with pods using Kubectl
  
  
• all about Roles in kubernetes cluster
  
  
• resolve storage related
  
  

Kubernetes

• Index
  
  
• Minio
  
  
• what options we have fro imagePullPolicy
  
  
• Volume
  
  

Latex

• different typesettings based on TeX
  
  
• how to install latex
  
  
• all about itemize in latex
  
  
• about Karl's Path SEarch library WHICH
  
  
• all about latexmk
  
  
• how combine markdown with latex
  
  
• seminar template for master
  
  
• all about tables
  
  
• LaTeX tutorials
  
  

Linux

• how to work with chmod in linux
  
  
• how we can find and delete metadata of files
  
  
• how to findout the pid of process on a port
  
  
• change the default font
  
  
• how you can find large and unnecessary files
  
  
• GNU is what you need
  
  
• how to work with groups in linux
  
  
• all about window managers and gpu stuff
  
  
• all about log rotaion in linux
  
  
• all about mac address in linux
  
  
• all about mount in linux
  
  
• all about NetworkManger; network management daemon
  
  
• No Login
  
  
• Partition
  
  
• working with processes in Linux
  
  
• what is shebang and how it can be used
  
  
• introduce terminals
  
  
• what are ttys
  
  
• Users And Groups
  
  

Locales

• locale in linux systems
  
  

Logging

• Dmesg
  
  
• Logrotate
  
  

Logs

Mac

• how to work with mac
  
  

Mailgun

• how to work with mailgun
  
  

Mailserver

• clients for sending emails
  
  
• how we can configure mail server in CF
  
  
• Delist
  
  
• Dmarc
  
  
• add mail in gmail
  
  
• how to check the HTML is OK or not
  
  
• sending mail
  
  
• add pop3 support
  
  
• all about Gogole PostMaster Tool
  
  
• Rdns
  
  
• Roundcube
  
  
• All about the SPF record
  
  
• Templates
  
  
• test mail server is good enough
  
  
• all about making yahoo work with our mail servers
  
  

Makefile

• how to simulate functions with vars in makeifle
  
  
• all about makefiles
  
  

Mattermost

• mattermost
  
  

Mc

• mc to access s3 buckets
  
  

Microk8s

• Comman MikroK8S commands
  
  
• ...
  
  
• images and registry
  
  
• all about microk8s
  
  
• Kind
  
  
• Reset
  
  

Minio

• how to use minio
  
  

Mk8s

Mkdocs

• how we can generate docs with mkdocs and md files
  
  

Mongodb

• Index
  
  
• Restart
  
  

Monitoring

• Container monitoring
  
  
• all about monitoring tools (prometheus, loki, promtail, grafana)
  
  

Nano

• nano hacks
  
  

Nekoray

• how to configure routes and rulesets in Nekoray
  
  

Network

• use netcat to test binding, setcap and authbind are solutions
  
  
• all about gateway interfaces
  
  
• how we should work with dig?
  
  
• all about configuring ips
  
  
• all about network interface
  
  
• tools on ip check
  
  
• all about network monitoring
  
  
• what is network partition?
  
  

Nextjs

• what are envs and how we should use them
  
  
• G4
  
  
• Head
  
  
• all about SEO in nextjs apps
  
  
• Tag Manager(gtm)
  
  

Nfs

• MinIO Client
  
  

Nginx

• Default Server
  
  
• echo module
  
  
• all about Nginx configuration
  
  
• Proxy Pass
  
  
• determine who is trustable for setting X-Forwarded-For
  
  
• all about NGINX rewrites
  
  
• Static Serving
  
  
• make cluster of nginx web servers in sync
  
  

Node

• all about dockerizing node.js projects
  
  
• all about npm
  
  
• all about NVM
  
  

Npp

• all about notepad plus plus (npp)
  
  

Nvim

• all about NeoVim
  
  

Og

• all about using og tags for SEO
  
  

Openai

• Chat Completion API
  
  
• all about OpenAI apis
  
  

Orchestration

• Containers
  
  

Pandoc

• convert files from one markup to another with pandoc
  
  

Patterns

• all about patterns in software engineering
  
  

Pm2

• Index
  
  
• Nextjs
  
  
• React
  
  

Postfix

• Configs
  
  
• Debug
  
  
• Mail Server
  
  
• Postfix Installation
  
  
• how set specefic host ip for postfix use
  
  
• Master
  
  
• Restrict
  
  

Postgres

• analyze queries in postgresql
  
  
• postgres backup
  
  
• CLI base commands
  
  
• Create User
  
  
• all about dockerizing postgres
  
  
• basic concepts about PostgreSQL
  
  
• Large Database
  
  
• Performance
  
  
• Pg_basebackup
  
  
• all about pg_dump
  
  
• all about pg_restore
  
  
• Pg_statistic
  
  
• Pgadmin
  
  
• how to work with Postgres Client
  
  
• all about schemas in postgresql
  
  
• enable ssl connection for postgresql
  
  

Proxy_chains

• tunnel commands in termnial
  
  

Pycharm

• Run/Debug Configurations
  
  
• how to configure Python console without enabling Django
  
  
• how to fix the import problem with Pycharm
  
  
• ‌how to work with Pycharm Editors
  
  
• configure tests in PyCharm
  
  

Pymdown

• python markdown extensions to render markdown richly
  
  

Python

• datamodel in Python
  
  
• how work with datetime
  
  
• Decorators
  
  
• python sample dockerfile
  
  
• all about dockerizing python projects
  
  
• tools we can use for documentation in Python
  
  
• all about python formatters
  
  
• Defining Your Own Python Function
  
  
• all about Global Interpreter Lock (GIL) in python
  
  
• how to work with inspect in python
  
  
• install different versions of Python
  
  
• all about json library in Python
  
  
• all about Python method default value
  
  
• All about Mock in Python
  
  
• Namespaces and Scope in Python
  
  
• can we overload methods in python?!
  
  
• all about pip
  
  
• Pipenv Python Package Manager
  
  
• install applications having CLIs using isolated Virtual Environments
  
  
• all about pydantic
  
  
• switch between python versions using pyenv
  
  
• Python Packaging Authority
  
  
• Special (magic/dunder) methods in Python (____)
  
  
• create temp dir in python
  
  
• automation in python projects
  
  

Random

• Index
  
  

Rclone

• rclone install and configure the work with File Storages
  
  
• how to fetch and mount a remote drive into local filesystem
  
  
• show the progress of moving files
  
  

Redis

• Load_balance
  
  
• how we can handle race condition using lock in redis
  
  
• all about monitoring in Redis
  
  

Regex

• definitions and examples with regex
  
  

Resolved

• all about resolved local dns resolver
  
  

Resolver

• all about the default local dns resolver
  
  

Rocketchat

• how the message should be sent from clinet
  
  
• install and update
  
  
• how to install and upgrade rocketchat servser
  
  
• RocketChat Integrations
  
  
• marketplace
  
  
• make rocketchat support RTL
  
  
• Configure ssl and reverse proxy
  
  

S3cmd

• s3cmd
  
  
• step by stepe through an example
  
  

S3fs-fuse

• allows to mount an S3 bucket via FUSE
  
  

Scrcpy

• scrcpy mirror android devices on computers
  
  

Security

• all about HTTP Strict Transfer Security
  
  
• CIS Benchmarks List
  
  
• security headers needed for REST Request Responses
  
  
• all about ssl security
  
  

Seldon-v2

• Seldon V2 Saeid
  
  
• Seldon V2 HuggingFace Models
  
  
• Seldon V2 Inference
  
  
• Final Seldon V2 Installation
  
  
• Seldon V2 Installation
  
  
• Seldon V2 Metrics Monitoring
  
  

Sentry

• config sentry in django
  
  
• config Sentry on Gitlab
  
  
• how to install Snetry on self host
  
  

Shopify

• All about Shopify app development
  
  

Shoutrrr

• Notification Library for Diverse Services
  
  

Snap

• all about snap package manager
  
  

Sql

• all kinds of joins
  
  

Sqlite

• Cli
  
  

Ssh

• Adding ssh key to the ssh-agent
  
  
• all about ssh config file (Host, Match, ...)
  
  
• Dump running sshd config
  
  
• Index
  
  
• all about ssh keys
  
  
• how configure sshd
  
  

Ssh-tunneling

Sshfs

• secure shell filesystem (mount remote files through ssh)
  
  

Ssl

• Checker
  
  

Storage

• how to work with borg
  
  

Systemd

• imporant systemd commands
  
  
• Drop In
  
  
• basics of systemd
  
  
• Journalctl
  
  
• all about systemd kill
  
  
• all about systemd notify type
  
  
• how to remove a systemd unit after being failed
  
  

Telegram

• Index
  
  

Thunderbird

• all about Mozilla Thunderbird mail client
  
  

Tmux

• all about working with tmux
  
  
• Install
  
  

Translate

• how to setup the Google Translation API
  
  
• libraries to use for translation
  
  

Typescript

• Types
  
  

Ufw

Unicode

• the resources on differenet unicodes
  
  

V2ray

• general thoughts on V2Ray
  
  

Vpn

• all about settuping VPN on VPS
  
  
• all about socks proxy
  
  
• config udpgw and google 403
  
  
• how to configure vpn
  
  
• sshuttle, ssh vpn for linux
  
  

Vscode

• VSCode default settings
  
  
• issues which limit us and needs features
  
  
• all about vscode keybindings
  
  
• All about language-specific settings in VSCode
  
  
• all about configuring LaTeX Workshop
  
  
• all about python in vscode
  
  
• install and work with vscode server
  
  
• Watchers
  
  
• how to work with VSCode workspaces
  
  
• wrap in VSCode
  
  
• add more support for yaml in vscode
  
  

Watchtower

• how to work with watchtower
  
  

Web

• all about CORS (Cross-Origin Resource Sharing)
  
  

Yolo

• yolo model
  
  

Zsh

• all about omz
  
  
• oh-my-zsh hacks