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The Guide

VPS and SSH guides

Operate your VPS safely: SSH access, private services, memory and resource checks.

A VPS gives you root access and full responsibility. These guides show how to reach private services through a temporary SSH tunnel, diagnose memory pressure before paying for a bigger plan and keep your access tidy and auditable.

20 articles

A path from computer through SSH to a private service marks three diagnostic checkpoints.

Diagnose an SSH tunnel that no longer responds

Smiley Hoster Team · October 27, 2026

A firewall allows the admin address while separating other incoming connections.

Restrict an existing UFW SSH rule to your admin address

Smiley Hoster Team · October 26, 2026

A checklist connects update configuration, simulation and follow-up.

Audit automatic updates on your Ubuntu VPS

Smiley Hoster Team · October 25, 2026

Three separate checks show service state, website response and the alert recipient.

Check a VPS service with systemd before escalating

Smiley Hoster Team · October 24, 2026

A backup timeline separates retained snapshots from proposed removals.

Preview a restic retention policy for your VPS

Smiley Hoster Team · October 23, 2026

A key connects a personal computer to a VPS with a verified login.

Set up a personal SSH key for your VPS

Smiley Hoster Team · October 22, 2026

Trusted console and SSH prompt cards show matching fingerprint patterns for comparison.

Verify a VPS host fingerprint before your first SSH login

Smiley Hoster Team · October 20, 2026

An SSH alias connected to a card representing a test VPS.

Create an SSH alias for the right VPS

Smiley Hoster Team · October 19, 2026

A 4 GiB memory budget is divided into other services, ten PHP workers and spare capacity.

Size PHP-FPM pm.max_children for your WordPress VPS memory

Smiley Hoster Team · October 10, 2026

A timeline connects DNS preparation, file copying, testing and the switch to a new VPS.

Migrate a website to a new VPS with rsync and a tested DNS cutover

Smiley Hoster Team · October 10, 2026

A disk-based swap reserve sits beside RAM and a swappiness adjustment slider.

Add a swap file to an Ubuntu VPS and tune swappiness

Smiley Hoster Team · October 10, 2026

Two application versions run side by side while an arrow moves traffic to the ready version.

Deploy with Docker Compose on a VPS and prepare a seamless update

Smiley Hoster Team · October 9, 2026

A request passes through Nginx to Node.js, with systemd managing the process and logs.

Deploy a Node.js app on a VPS with systemd and Nginx

Smiley Hoster Team · October 9, 2026

Nginx, PHP-FPM and MariaDB form a stack leading to WordPress over HTTPS.

Install WordPress on an Ubuntu VPS with Nginx and HTTPS

Smiley Hoster Team · October 9, 2026

Three numbered cards show Session, Switch, Verify.

Test sessions before running your site on two instances

Smiley Hoster Team · October 8, 2026

Three numbered cards show Workload, Credits, Cost.

Check whether burstable CPU fits your website

Smiley Hoster Team · September 28, 2026

Three numbered cards show Isolate, Restore, Check.

Rehearse a website restore in an isolated environment

Smiley Hoster Team · September 26, 2026

Three cards show the workflow: Inventory, Test, Decide.

Check your Python application before changing runtimes

Smiley Hoster Team · September 26, 2026

A computer connected to a VPS web service through SSH, with open, test and close steps.

Open an SSH tunnel to a private web service on your VPS

Smiley Hoster Team · September 23, 2026

Three cards show the workflow: Observe, Compare, Measure.

Diagnose VPS memory use before upgrading

Smiley Hoster Team · September 22, 2026

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