The Net7 Blog

Welcome to our blog section.

We write about hands-on experience on various practical topics regarding hosting, security, the web and more.

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Docker and the Linux firewall (iptables)

Published:  15/06/2023 10:20
Docker uses netfilter (Linux firewall) rules to create its internal container network and port bindings to the host system. These rules have precedence over regular rules and may make it harder to filter traffic to containers. The article explains how to do it with iptables.

PHP hosting: simple setup for opcache and adjacents

Published:  11/04/2023 16:00
Our recommendations for a quick and easy Opcache config for PHP 5.5 to 8.

Dumping MySQL/MariaDB users and permissions

Published:  09/02/2023 18:40
We'll be describing a few simple ways to dump all the grants for MySQL or MariaDB databases for backup or duplicating purposes.

Using Linux "ip" command cheat sheet

Published:  29/11/2022 23:00
Linux network administration now favors using tools like "ip" and "ss" instead of the legacy "ifconfig" and "netstat", let's see how they relate

Using HTTP/2 with Apache and Nginx

Published:  22/09/2022 11:00
HTTP/2 appeared somewhere around 2015. It's both young and old depending on your frame of reference but many embedded web servers now offer it by default. Let's see how to enable it on Apache and Nginx.

Configuring log rotation on Linux with logrotate

Published:  12/07/2022 09:50
When doing any kind of custom logging, you'll need custom log rotation to make sure all of your storage space isn't being used up by tons of old logging data, here's how to do it