Blog
Development, infrastructure, SEO, AI and IT for business — short and to the point.
1495 articles
- Databases & data4 min
PostgreSQL Backup and Restore with pg_dump and pg_restore
Use pg_dump in the custom format (-Fc) for compressed, flexible backups and restore them with pg_restore; save roles separately with pg_dumpall --globals-only. Automate dumps with cron, keep several copies including one off the server, and regularly test that a restore actually works.
Practice - Hosting & cloud4 min
How to Choose a Domain Name for Your Business
A good domain is short, spelled the way it sounds, uses a zone your customers trust, does not infringe anyone's trademark and is registered to your company.
Practice - IT careers4 min
How to Find Your First Job in IT Without Experience
Search through job boards, Telegram channels and referrals at the same time, send tailored applications steadily on a weekly plan, and stand out with finished projects and a quick cover note.
Practice - Tools & no-code4 min
How to Create a Custom Workflow in Jira
A Jira workflow is a set of statuses connected by transitions; conditions decide who can move an issue, validators check data before the move and post-functions act after it, and a good workflow mirrors your real process with as few statuses as possible.
Practice - IT by industry4 min
Farm Management Software: Fields, Crops and Costs
Farm management software keeps each field's history, plans operations and calculates costs and yield by field and crop, so you can see what actually makes money.
Basics - Networks & office IT5 min
How to Monitor an Office Network: SNMP, Zabbix and Alerts
Collect the health of uplinks, switches, access points, UPS, NAS and printers via SNMP into a tool such as Zabbix, and send to Telegram only alerts that require action, with delays and dependencies to cut the noise.
Advanced - IT for business3 min
How to Manage an Outsourced Development Team
Manage an outsourced team by outcomes, not presence: agree on a meeting rhythm, one shared task board, regular demos and a single decision-maker on each side.
Practice - Web development4 min
What Is a Headless CMS: Strapi, Sanity, Payload Compared
A headless CMS stores and edits content but does not render it — a website, app or bot fetches the data via API, giving you frontend freedom at the cost of more complex development.
Basics - SEO3 min
How Search Engines Work: Crawling, Indexing and Ranking
A search engine first discovers a page with a crawler, then renders and stores it in its index, and on each query picks the most useful answers from that index. Site owners influence every stage through accessibility, clear markup and content quality.
Basics - DevOps3 min
GitHub Actions Tutorial: Your First CI Pipeline
GitHub Actions runs a YAML file from .github/workflows when something happens in your repository; a first CI pipeline is one job that checks out the code, installs dependencies, then runs the linter, tests and build on every push and pull request.
Practice - AI & automation4 min
What Are Deepfakes and How to Protect Your Business
A deepfake is AI-generated or AI-altered image, video or audio posing as a real person; what protects a business is not a sharp eye but verification through independent channels and liveness checks in remote identity verification.
Basics - Programming4 min
.gitignore Guide: What to Ignore and How Patterns Work
.gitignore tells Git which untracked files to keep out of the repository, such as dependencies, builds, local settings and secrets; it does not affect files already committed — those must be removed with git rm --cached.
Practice - Mobile development4 min
App Signing Explained: iOS Certificates, Profiles and Android Keys
Signing proves an update comes from the same owner; on iOS Apple manages it through certificates and profiles, on Android the key point is never to lose the upload key, and all keys should sit in company-owned accounts, not with a contractor.
Basics - Marketing & analytics4 min
Google Ads Keyword Match Types and Negative Keywords Guide
Match type sets how far a search can drift from your keyword: broad covers related topics, phrase covers searches that include its meaning, exact covers searches with the same meaning. Irrelevant traffic is cut with negative keywords found in the search terms report.
Practice - Design & UX4 min
How to Build a Color Palette for a Brand or Product
Pick one primary color with a clear meaning, expand it into a scale of tints and shades, add a tinted neutral scale and semantic colors for status, name them as tokens and test everything on real screens and contrast checks.
Practice - Telegram & messengers3 min
Common Mistakes in Telegram Bot Development and How to Avoid Them
Most bot problems are dead-end menus, state kept in process memory, hardcoded tokens, missing error handling and no admin tools; fix them with Back buttons on every screen, Redis or a database for state, secrets in environment variables, a global error handler and a simple admin panel.
Practice - E-commerce & CRM4 min
How to Choose a Payment Gateway for Your Online Store
Choose a gateway by how your customers pay, what each payment really costs with all fees included, how fast the money arrives and how well the API handles cancellations, refunds and subscriptions; comparing by headline fee alone is almost always misleading.
Practice - Security4 min
Mobile App Security Checklist Based on OWASP MASVS
Use MASVS as a checklist: keep secrets in Keychain or Keystore, pin certificates, detect rooted devices, obfuscate release builds, validate every deep link, and keep business logic, prices and keys on the server.
Practice - Databases & data4 min
How to Find Slow Queries in PostgreSQL with EXPLAIN ANALYZE
First find the most expensive queries with pg_stat_statements or log_min_duration_statement, then run EXPLAIN (ANALYZE, BUFFERS) on them and look for the node where time is spent, usually a Seq Scan on a large table or an extra sort that the right index fixes.
Practice - Hosting & cloud4 min
How to Choose a Hosting Provider: A Practical Checklist
Choose a provider not by price but by five things: where the servers are, whether resources are described honestly, how it actually performed recently, how fast support answers, and whether you can restore your data and leave without losses.
Practice - IT careers4 min
How to Learn Programming on Your Own and Not Give Up
Study in short, regular sessions on a fixed schedule, move from courses to your own projects as early as possible, and keep people around who can see your progress.
Practice - Tools & no-code4 min
How to Set Up a Scrum Board and Sprints in Jira
Create a project from the Scrum template, fill and prioritize the backlog, estimate issues in story points, start a sprint with a clear goal and realistic scope, close it honestly, and use burndown and velocity to plan the next one.
Practice - IT by industry4 min
Fitness Club CRM: Memberships, Freezes and Renewals
A fitness club CRM should store the rules of each membership, calculate remaining days and visits including freezes, remind members about renewal in advance and show who stopped coming, so renewals no longer depend on the front desk's memory.
Practice - Networks & office IT4 min
Office Relocation IT Checklist: Moving Without Downtime
Start by ordering internet at the new office because it takes longest, then check the cabling, inventory and label equipment, port your phone numbers and move over a weekend with a checklist of tests for Monday.
Practice
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