Featured Articles

Nightmare on Lemmy Street (A Fediverse GDPR Horror Story)
Hardening Guide for phpList
Trusted Boot (Anti-Evil-Maid, Heads, and PureBoot)
Introducing BusKill: A Kill Cord for your Laptop
WordPress Profiling with XHProf (Debugging & Optimizing Speed)
Detecting (Malicious) Unicode in GitHub PRs
WordPress Multisite on the Darknet (Mercator .onion alias)
Continuous Documentation: Hosting Read the Docs on GitHub Pages (2/2)
Crowdfunding on Crowd Supply (Review of my experience)
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WordPress Profiling with XHProf (Debugging & Optimizing Speed)

Debugging & Optimizing Wordpress Speed with XHProf

This guide will show you how to generate and view XHProf reports of your WordPress Site.

This is useful so you can drill-down and see exactly how many microseconds each of your scripts and functions (themes & plugins) are running when generating a page — slowing down your website visitors’ page load speed.

Michael Altfield

Hi, I’m Michael Altfield. I write articles about opsec, privacy, and devops ➡

About Michael


. . . → Read More: WordPress Profiling with XHProf (Debugging & Optimizing Speed)

New Look!

Well, my old server died (I think the processor fried itself somehow). Due to school workload, I wasn’t able to properly configure a new server until now, thereby this blog has been down for months (and, surprisingly, I’ve actually had people comment about it being down–mostly because they were unable to flame me, though *shrug*).

Anyway, I’ve finally got a new (actually, it’s quite old) rack-mountable server (minus the rack) running FreeBSD as a replacement. Moreover, I’ve changed the theme, so this site had both a different software and hardware look!

Michael Altfield

Hi, I’m Michael Altfield. I write articles about opsec, privacy, and devops ➡

About Michael

tech.michaelaltfield.net/

Smooth Wall

I’ve wanted to setup a serious linux-based firewall for my home network for some time now, and I finally got around to it yesterday.

There are TON of linux router distros out there, but instead of spending 8 hours picking & choosing, comparing & contrasting, nitpicking & debating, I asked someone else ;). Two buddies of mine have a similar setup at their homes: one uses Smooth Wall; one uses IPCop. I arbitrarily chose Smooth Wall (after actually setting it up, though, I think IPCop would have been a better choice–c’est la vie.

The installation is supposed to be quite painless, and it was–for the most part. The documentation and install process was intuitive and easy to follow, but it didn’t work OOTB. I probably only had so much difficulty because of hardware issues (fried NICs?) which is by no means Smooth Wall’s fault. Nevertheless, it took ~5 hours of bang-your-head-against-the-table troubleshooting ’till I could finally unhook the monitor & keyboard, shove it in a corner, and get some sleep.

I was also disappointed with two things that didn’t work as I had expected OOTB:

DHCP DNS VPN Michael Altfield

Hi, I’m Michael Altfield. I write articles about opsec, privacy, and
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