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Interweb Angola www.meu.interweb.ao › Meu Interweb › Knowledge Base Knowledge baseComparisons and alternatives

PHP or Node.js for your web project: how to choose

If you are installing WordPress, a shop or another ready-made program, use PHP: it is what the program asks for. If you are writing an application of your own, with…

Interweb Angola www.meu.interweb.ao › Meu Interweb › Knowledge Base Knowledge basePHP & Development

cURL error 28, 7 and 6 in PHP: timeout, connection refused and could not resolve host

When your site calls an outside service (a payment, an API, an update) and it fails, PHP returns a cURL error number. The three most seen say different things: 6,…

Interweb Angola www.meu.interweb.ao › Meu Interweb › Knowledge Base Knowledge baseSEO & Marketing

robots.txt and sitemap.xml: what they do and how to check them

They are two small files that speak to search engines, and it is very common for one of them to be wrong without anyone noticing. robots.txt tells robots where they…

Interweb Angola www.meu.interweb.ao › Meu Interweb › Knowledge Base Knowledge baseSecurity

The scan says clean but the site still redirects: where an infection hides

The short answer: a scan only sees what it knows how to recognise. A modern infection hides outside the files you look at first (in the database, in an .htaccess,…

Interweb Angola www.meu.interweb.ao › Meu Interweb › Knowledge Base Knowledge baseComparisons and alternatives

Automatic daily backup or your own copy: which one saves you, and when

Short answer: they are not alternatives, they cover different problems. The automatic daily backup handles most everyday disasters (a deleted file, a plugin that broke the site). Your own copy,…

Interweb Angola www.meu.interweb.ao › Meu Interweb › Knowledge Base Knowledge baseSpeed, Cache & CDN

Visitors still see the old CSS or logo: versioned file names and cache busting

You changed the CSS, the logo or a script, and you see the new one but visitors keep seeing the old version. The cause is their browser’s cache: the file…

Interweb Angola www.meu.interweb.ao › Meu Interweb › Knowledge Base Knowledge basePHP & Development

Uploading large files in PHP: upload_max_filesize and post_max_size

To upload a big file through a form, two values have to be high enough, and the second has to be larger than the first: upload_max_filesize (the size of each…

Interweb Angola www.meu.interweb.ao › Meu Interweb › Knowledge Base Knowledge baseSecurity

ModSecurity and web application firewalls: what they do, and what to do when one blocks you

The short answer: a web application firewall (WAF) reads every request reaching your site and refuses the ones shaped like an attack. ModSecurity is the best-known engine, and it is…

Interweb Angola www.meu.interweb.ao › Meu Interweb › Knowledge Base Knowledge baseAutomation & n8n

Posting to social networks automatically: what automation can and cannot do

You can make every new article on your site produce a social post, but the best way to do it is to automate the draft and not the publishing. The…

Interweb Angola www.meu.interweb.ao › Meu Interweb › Knowledge Base Knowledge basePHP & Development

Sending e-mail from PHP: mail() or SMTP

Use SMTP with a real mailbox on your domain. The mail() function is fine for a quick test, but it returns “sent” only because the local mail program accepted the…