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MozOut - South Africa www.my.mozout.com › My MozOut › Knowledge Base Knowledge baseSEO & Marketing

How to remove a page from Google results: noindex, removal tool or password

It depends on what you want. For the page to stop existing, delete it and make it return 404 (or 410). For the page to stay but be out of…

MozOut - South Africa www.my.mozout.com › My MozOut › Knowledge Base Knowledge baseBackups & Migration

Restoring a single e-mail account or folder

To put deleted messages back, open JetBackup (cPanel, Files section), choose the copy from a date before the deletion and restore only the e-mail folder concerned, not the whole account.…

MozOut - South Africa www.my.mozout.com › My MozOut › Knowledge Base Knowledge baseBackups & Migration

Testing a migrated site before you change the DNS (the hosts file)

To see the new site before the DNS changes, add one line to your computer’s hosts file saying “this domain lives at this IP address”. Only your computer goes to…

MozOut - South Africa www.my.mozout.com › My MozOut › Knowledge Base Knowledge baseChoosing the Right Plan

CPU, RAM and disk I/O in plain words: what each one limits on your site

On shared hosting your account lives in a compartment with ceilings of its own for processor (CPU), memory (RAM) and disk reads and writes (I/O). They exist so a noisy…

MozOut - South Africa www.my.mozout.com › My MozOut › Knowledge Base Knowledge basePHP & Development

Fixing “Allowed memory size exhausted”

The full message reads “Allowed memory size of … bytes exhausted (tried to allocate … bytes)”. It means a single request tried to use more memory than PHP’s memory_limit allows.…

MozOut - South Africa www.my.mozout.com › My MozOut › Knowledge Base Knowledge baseDatabases

Reaching MySQL or PostgreSQL through an SSH tunnel, step by step

The database ports (3306 for MySQL, 5432 for PostgreSQL) are not open from outside. An SSH tunnel solves that: it opens a port on your computer that leads, inside SSH,…

MozOut - South Africa www.my.mozout.com › My MozOut › Knowledge Base Knowledge baseAutomation & n8n

A cron job that does not run or sends no output: a checklist

Most of the time the cron job does run, and fails for one of six reasons: an incomplete path, an unprotected % sign, the wrong PHP version, a script without…

MozOut - South Africa www.my.mozout.com › My MozOut › Knowledge Base Knowledge baseE-mail

Error 421 and 451: temporary failures, and why the message is delayed and not lost

An error that starts with a 4 (421, 450, 451, 452) is a “not now, try later” reply. It is not a refusal. The server that sent the message keeps…

MozOut - South Africa www.my.mozout.com › My MozOut › Knowledge Base Knowledge baseDatabases

Installing PostgreSQL on a VPS

On a VPS running Ubuntu 22.04 LTS, as root, you install PostgreSQL with apt install postgresql postgresql-contrib. The service starts by itself and, by default, listens only on the server…

MozOut - South Africa www.my.mozout.com › My MozOut › Knowledge Base Knowledge basePHP & Development

A blank page in PHP: how to see the error

A white page means PHP hit a fatal error and is set not to show it. That is the right setting for a public site, which is why the error…