Updated 03-Aug-2025 This assumes a current configuration of: - Amazon Linux (6.x RHEL series) - Apache 2.4 - PHP 5.6 + Opcache - Oracle MySQL 5.7 Installation up to this point is encompassed by: - OpenVPN on Amazon Linux EC2, basic configuration and securing an EC2 instance - Amazon Linux, Apache, MySQL, and PHP, installing ... Read more
Updated 03-Aug-2025 Technology has advanced to the point where 95% of the work in 360 images and video is now done by consumer-grade hardware. For a 360 walkthrough or tour of an event or architectural location, all that is needed is a tripod, monopod, or head-mounted camera, and remote shutter or automatic capturing (every 8 ... Read more
Updated 03-Aug-2025 PATH can be a pain, but there are some basics: Syntax $PATH before or after (before) Is EXPORT needed, or not (not) Where is PATH set All apps+shells /etc/environment All shells ~/.profile or /etc/profile for all users (or a separate file under /etc/profile.d/ if using pacman) Bash shell ~/.bashrc (or ~/.bash_profile or ~/.bash_login) ... Read more
Updated 03-Aug-2025 Note: Amazon Linux AMI is essentially CentOS 6.x. Everything below works on CentOS as well. Preparation for Amazon LAMP The OpenVPN on Amazon Linux AMI is a good place to start in preping the L for the AMP part of the lamp stack. Lots of good stuff there. A followup is WordPress Multisite ... Read more
Updated 03-Aug-2025 OpenVPN is great, and the OpenVPN command line client and the Viscosity GUI are also nice. However, all configurations need to be checked to ensure there is no information leakage. Secondly, the basic OpenVPN connection needs another layer of encryption and/or obfuscation, in order to interoperate with Internet firewalls and services that use ... Read more
Updated 03-Aug-2025 Amazon Lightsail is a VPS services offered by Amazon that competes with the likes of Rackspace, DigitalOcean, Linode, etc. Note: As of mid 2018 AWS effectively halved its prices on Lightsail. This means there is a $3.50 USD/mo. option and the $40 option listed below (4gb ram/2 cpu/60gb ssd/4tb xfer) is actually only ... Read more
Updated 03-Aug-2025 What I learned in migrating from CentOS on Linode to Amazon AMI Linux on EC2. Note: Amazon Lightsail is probably a better comparison, but it is not available in the region we need it in, so EC2 is required for now. Update: Lightsail is now available in more regions. VPS Hosting and Operating ... Read more
Updated 03-Aug-2025 I've run across a variety of advice from know-nothings who can't evaluate the accuracy of statements, and use terms that they are unable to define. It is quite ridiculous, especially among the mommy-blogger set. Examples: Eating peanuts while nursing an infant is fine (no, peanuts actually do pass into breastmilk) Make a citrus ... Read more
Updated 03-Aug-2025 Note: See also Soaps, Cleaners, and Detergents The main issue with cloth diapers (as well as cold water washing machines and line drying), is the need to have clean, smell-free, non-irritating/toxic system for cleaning that works and is cost effective. In this regard the following system seems to be effective: - Spray clean ... Read more
Updated 03-Aug-2025 See also OpenVPN on ChromeOS and Android OpenVPN on an AWS EC2 T2.Nano Instance The T2.Nano instance is the smallest instance generally available for AWS EC2. As of 17-June-2017, the Nano includes the following resources: 512mb RAM 1 vcpu (30 credits + 3/hr, up to 72 credits) 1gb network out traffic Alternatively, a ... Read more
Updated 03-Aug-2025 Amazon is different than other companies. From the outside, this difference can appear as anomolies, odd things that stand out. I belive that there is a fundamental way of understanding the current state and dynamo of change within Amazon. Customer Centrism Amazon is meant to be the most customer-centric company on Earth. Likely ... Read more
Updated 03-Aug-2025 Lots of Apple devices suffer from the innovation of Apple Computer, including the iphone/ipod touch and macbooks. Some reality First, let's just say that non-replacable batteries certainly are replaceable. I've had the batteries replaced (with new ones) in my 2011 Macbook Air, and two 2012 iphones. This happened in 2016. Batteries and heat ... Read more
Updated 03-Aug-2025 The first trillionaire will not be a human, it will be a bot (though a sophisticated one). Suffice it to say that making money, legally or extralegally, will be something that could be done by a system designed to do so, that could have enough ability to act in a marketplace, and enough ... Read more
Updated 03-Aug-2025 Recent malware and phishing attackes continue to increase in scale and target gmail and other infrastructure. Since many folks keep email mostly in the cloud, and even worse, client synchronization would delete any mail removed from a mailbox, making the client ineffective as offline backup, a system is needed to ensure there is ... Read more
Updated 03-Aug-2025 Below are bulletted list items. Later this will turn into better copy. Summary: Use Texvc when necessary, and KaTeX when possible. Math in Chrome SVG is the preferred method for Math on Chrome, though accessibility is still an issue Basically, for Chrome, the options are: ship small images at a great expense in ... Read more
Updated 03-Aug-2025 There of course is no MediaWiki vs. WordPress in the sense of a battle. As Wiki and Blog platforms go, each is the winner in their category in terms of raw number of users/pageviews. That said, there are definitely (different) concerns with each platform, architecturally as well as accidentally. And therefore, we dreg ... Read more
Updated 03-Aug-2025 Late to the party as always, as this has been going on for a few years, but hey. In any case, this is about Elixir and Phoenix: - Elixir is a 5 year old functional programming language, that runs on the - Erlang BEAM VM (which is very mature, fast, and reliable), and ... Read more
Updated 03-Aug-2025 The new Amazon Echo Show looks great. Watching the video, it is striking that the interface appears so clean. This is obvious when using voice, since buttons don't really count. Also, the fact that this is not just a piece of hardware and natural language interface, these are applications being shown. In terms ... Read more
Updated 03-Aug-2025 Postfix Mail Transport Agent (MTA) Postfix is a Mail Transport Agent (MTA). It is not a complete mail system, but focuses on the MTA component, and does not include a Mail Delivery Agent (MDA), such as IMAP support, nor does it include a Mail User Agent (MUA), such as a web mail client. ... Read more
Updated 03-Aug-2025 For those of us early adopters who managed to snag a 50 user (or 10 user) free google apps accounts, things are sweet. New users have to cough up $ 5 USD/mailbox/month (or $ 4.19 USD/mailbox/month provided yearly billing). What Google really wants is the $ 10 USD/month or $25 USD/month enhanced cloud ... Read more