Improving OpenVPN performance and throughput

OpenVPN, Wireguard, L2TP/IPSec, SSTP, IKEv2, PPTP, or other. If you had the luxury of choosing, which of these VPN protocols would you use? Therein lies my problem. In my current use case, I must find a way to improve OpenVPN performance and throughput. You may have been following my Linux home lab build. One of […]

Raspberry Pi Performance: Add ZRAM and these Kernel Parameters

A couple of weeks ago, I published a Pinebook Pro review article on this blog. Similar to the Pinebook Pro, the Raspberry Pi and more recently the Raspberry Pi 4, are also ARM based. I’ve applied some of the optimizations mentioned in that previous article to the Raspberry Pi 4, with good results. I wanted […]

PHP 8 Compatibility Check and Performance Tips.

PHP 7 was first released back on 03 Dec 2015. Yes, I’m sure, it’s been around a while! The PHP team encouraged upgrading to PHP 7, hailing its improvements such as being twice as fast, consistent 64-bit support, removal of old and unsupported SAPIs and extensions, improved fatal error resistance, to name a few. A […]

PHP Performance: Additional CPU cores vs Faster CPU cores

Some time ago, I received an email from a client experiencing slow performance issues with a LEMP (Linux, Nginx, MySQL, and PHP webserver). During a full audit, I found that the server’s load average was pretty low (see above screenshot). However, the website was indeed very slow. There were some misconfigurations, but one of the […]

Linux benchmark scripts and tools

This list of Linux benchmark scripts and tools should prove useful for quick performance check of CPU, storage, memory, and network on Linux servers and VPS. Recently, I used a Linux benchmark script, which was no longer maintained. As a result, I compiled this quick list of scripts and tools for Linux benchmarking. Check each […]

25 Best CDN Providers 2021

A content delivery network also referred to as a content distribution network (CDN), is a geographically distributed network of data centers containing proxy servers. CDN providers serve internet content, including web objects (text, graphics, and scripts), downloadable objects (media files, software, documents), applications (e-commerce, portals), live streaming media, to name closer to and thus faster, to end-users. Some of […]

Observability, Getting Started – 50 Free Access and Open-Source Solutions

This article discusses APM and observability while highlighting free observability solutions and tools. I’ve also included several quotes collected from observability companies who offer free-level access to their platforms and composed a list of 40 noteworthy paid and open-source observability solutions. Lastly, I hope to urge observability providers to extend free and open access to […]

Linux top: Here’s how to customize it

The top command – referred to below as Linux top – is a command on Unix and Unix-like systems such as Linux, which provides a dynamic real-time overview of a running system. It can display system summary information and a list of processes or threads currently being managed by the Linux kernel. The types of […]

Is Cloudflare Argo worth it?

Cloudflare Argo reduces network latency on average by 35% and connection errors by 27%. Traditional network technologies use static routing information, which can be slower and often use congested paths. Slow loading times and connection timeouts increase the likelihood of poor user experience. The Cloudflare company routes 10% of all HTTP/HTTPS Internet traffic. This provides […]

PHP memory_limit – understanding and increasing this setting

PHP memory_limit is per-script, just as a highway’s speed limit is per-vehicle. For example, although PHP’s memory limit may be set high to 1GB, that does not mean that scripts will pile up to use that 1GB. Let’s take a quick look at understanding PHP’s memory_limit setting.   PHP memory_limit is a per-script setting’s […]