Practical Linux server tutorials for running your own cloud server, from your first SSH connection to security, web servers, DNS and Docker. Every step is spelled out and ready to run.
Is your server IP blocked in Iran? Compare ping and TCP from both sides with check-host.net, avoid the curl https://IP trap, decode 10.10.34.36, and fix it.
SSH Permission denied (publickey) means no key was accepted. Diagnose it with ssh -v and the sshd log, fix 9 common causes, or get back in via the console.
Best VPS location for Iran, measured: Germany 77–82 ms, Finland 102, Ashburn ~170, Oregon and Singapore ~260 ms, with routes, packet loss and a pick table.
Deploy Laravel on a VPS with Ubuntu 22.04: PHP 8.3 from the ondrej PPA, Nginx, Composer, a systemd queue worker, scheduler cron, free SSL and a deploy script.
Does an Iran VPS have international internet access? Dated tests from inside Iran: TCP works, QUIC is dropped, Telegram's API times out, and upload is free.
Point a domain to a VPS in 3 steps: set free nameservers at IRNIC or your registrar, add two A records with a 60s TTL, check the panel, and enable the CDN.
Emails going to spam or bouncing with 550 5.7.26? Read the Authentication-Results header, build correct SPF, DKIM and DMARC records, and fix DMARC alignment.
Website slow in Iran on the national internet (NIN)? Measure TTFB from inside Iran, find every foreign host your page loads, and self-host fonts and scripts.
Fix 503 Service Unavailable by finding the layer behind it: hosting resource limits, a full PHP-FPM pool, stuck WordPress maintenance mode or the CDN edge.
What is a CDN and how does it speed up a website? Edge caching, HIT vs MISS, origin protection, and choosing a CDN for visitors in Iran, in plain English.
Migrate a website to a new host with no downtime: full backup, lower the TTL 24–48 hours ahead, test via the hosts file, issue SSL first, keep SEO and email.
How to choose WordPress hosting with 10 measurable checks: PHP workers, NVMe, database latency, server location, SSL, backups, and red flags in hosting ads.
Buy a VPS outside Iran without an international card: pick the datacenter, see why Hetzner, pay in Toman with hourly billing, and secure it on day one.
Iran hosting vs foreign hosting: compare latency, uptime during international outages, SEO myths and paying in Toman, then pick with a decision table.
How to test VPS performance before you commit: CPU steal time, NVMe speed with fio, KVM and RAM checks, mtr from Iran's 3 carriers, IP history and uptime.
Set up a GRE tunnel between two servers: choose by route quality, not CPU, compare GRE, IPIP and VXLAN, open protocol 47, and fix MTU with MSS clamping.
Hourly vs monthly VPS billing: the break-even formula, six real usage patterns, what is on the bill, and 10 measured ways to cut your cloud server costs.
Install free SSL with Certbot and Let's Encrypt on Ubuntu or AlmaLinux: Nginx plugin, webroot, DNS-01 wildcards, auto-renewal checks and common error fixes.
Cron jobs in Linux explained: five-field crontab syntax with examples, why jobs fail silently, logging and flock, time zones, and when to use a systemd timer.
A 500 Internal Server Error means the app crashed and the cause is in the log. Read the logs, disable the broken plugin, and follow a 10-minute checklist.
VPS bandwidth is not monthly traffic. Measure real usage with vnStat, learn why it differs from your provider's count, and cut traffic with caching and a CDN.
Website analytics without Google Analytics: parse access logs with awk, get real IPs behind Cloudflare, handle mobile CGNAT, filter bots, GoAccess vs Umami.
Linux commands cheat sheet for server admins: 40 commands for files, processes, networking and systemd, with real examples. Bookmark the quick table.
Fix 502 Bad Gateway step by step: read the Nginx error log, restart PHP-FPM, catch the OOM killer and check Cloudflare. Work the funnel from the top.
Linux server monitoring commands for load average, real RAM use, disk and bandwidth, plus a free Telegram alert script. Start with the 30-second triage.
How to choose a VPS: size RAM and CPU to real load, insist on KVM and NVMe, test ping from your users and spot overselling. Run all 7 checks before you pay.
VPS vs cloud vs dedicated server: cost, speed, isolation and uptime compared, with a break-even formula. Answer three questions to pick the right one.
Shared hosting vs VPS: the signs you have outgrown your plan (508 and 503 errors, random slowdowns) and a zero-downtime move checklist. See if it is time.
What is a KVM VPS, and why does NVMe matter? KVM vs OpenVZ, NVMe vs SSD and steal time explained, plus commands that verify your server in seconds.
Trading VPS guide: specs for MetaTrader 5, Windows vs Linux with Wine, honest latency math and keeping your bot alive 24/7. Measure before you buy.
Host a Telegram bot on a VPS: BotFather token, a 20-line Python bot, systemd for 24/7 uptime and polling vs webhook. Follow the steps from zero.
Install WordPress on a VPS with Nginx, PHP and MariaDB, or move it from shared hosting with zero downtime. Includes fixes for post-migration errors.
Speed up WordPress in the right order: NVMe and PHP 8.4, page cache, OPcache, Redis, WebP images and database cleanup. Measure, fix, then measure again.
The best Linux distro for VPS hosting depends on the job. Compare Ubuntu LTS, Debian and AlmaLinux support dates, then pick one for your use case.
Free cPanel alternatives compared: aaPanel, CyberPanel, CloudPanel and HestiaCP, with install commands, ports, RAM needs and security traps. Pick yours.
Linux server backup that holds up: the 3-2-1 rule, a tar and cron script, MySQL dumps, rsync and restic offsite copies, and a restore test. Set it up today.
Reduce website latency in Iran: measure ping and TTFB with mtr and curl, and see why an Iranian data center can cut TTFB 4 to 7 times. Test it yourself.
Self-host n8n on a VPS with Docker Compose and Nginx: a Zapier alternative with no per-task fees, working webhooks and your data on your server. Start here.
How hourly billing cloud servers work: what a stopped vs deleted server costs, which projects it suits and five habits that cut idle hours from your bill.
Connect to a VPS with SSH from Windows, Mac, Linux or your phone: first login, ed25519 keys, config file, scp and rsync, and fixes for common errors.
A Linux server hardening checklist for a fresh VPS: SSH keys, a sudo user, UFW, Fail2ban, automatic updates and signs of a hack. Run it on day one.
Install Nginx on Ubuntu and take a bare server to a live HTTPS site: server blocks, free SSL with Certbot, PHP-FPM and quick speed wins. Step by step.
DNS record types explained with real examples: A, AAAA, CNAME, MX, TXT, NS, SRV and CAA, why CNAME fails at the apex and how to check records with dig.
Install Docker on a VPS, get past the Docker Hub 403 error on Iranian IPs, run your first container and ship a real app with Docker Compose. Step by step.
With hourly billing you can build a server, practice on it and delete it, paying only for the few hours it ran. Estimate the exact cost with the pricing calculator before you sign up.
