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Welcome to DFDN on Gemini

By David Norris - launched Sunday 17th September, 2023

"If you know the enemy and know yourself, you need not fear the outcome of a hundred battles. If you know yourself but not the enemy, then for every victory gained you will also

suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle."

Sun Tzu, Chinese military strategist and philosopher

***Breaking news***: I have been awarded a contract to teach at Shanxi Normal University starting September 1st. It is counter-signed by the vice principal and finalised. So, when I get back in London I have much planning and preparation to do! I asked for the pictures of me teaching here in the first week; I think this helped to persuade them. It would not have made any difference in the UK (nobody is taken on their merits any more when it comes to jobs); but this is China. The contract begins in September; I will be saving up for a visit to my lady in Burkina Faso during the summer recess next year. Living costs are low here in China; unlike inthe UK I can actually ***SAVE*** (everything is just so expensive there; try looking at rents in the UK and you will get a clue(!) and I will not begin a new family in poverty; it is not my way of doing things!). Here is the website: https://www.snnu.edu.cn/

David

*** For material related to Engilsh (TEFL) and/or engineering tuition, see /teaching ***

Follow me on Linkedin:

My Linkedin profile

How you find personal sites like mine, when Google and social media sites increasingly show our sites as "untrustworthy" and our email as 'spam'?

You can also finger me and find up what I am up to: finger@dfdn.info

My outlook on the future

My business card

James Ekwem, business partner

My WeChat ID wxid_mvi5mecug0q922

New future

The family that time forgot

The UK is, ostensibly, one of the world's leaving economies, and a G7 member. So, why are working families forced to use food banks to feed their children. All is revealed!

Why I have no plans to retire in the UK - and have better plans in the meantime!

I occasionaly mention the idea that I might 'watch the UK crash & burn on CNN'. How so? I explain here.

Who pays if you go into care in the uk?

My mother is self-neglecting. It is no revelation to me - I have known this for years. But what can I do?

The conditions older people risk living in in the UK (.TAR.GZ)

You are British, over 40, divorced and face a life of eternal loneliness? You might be pleasantly surprised!

Romane scams - a warning for those who read the link above

NEW! Contact and policy details for private work

What is means if payment is unsuccessful [decline codes] FAQ

UK default telephone number blocking - what it means for you - VIP! - please read and understand

My new experimental ZeroNet site (requires a ZeroNet client!)

My Christmas statements have become something of a tradition. Now here on Gemini for the first time; previous years may be found on Gopher.

Why do I use Gemini to host content, or even Gopher, for that matter? To quote the Gemini FAQ - the experience is like entering a library, not a shopping mall or a casino. "The average Gemini page is at least ten times smaller than the average webpage, and a hundred times smaller than worst ones, so they load almost instantly even on old computers or flaky internet connections."

Great of you are in Africa, SE Asia or parts of Latin America and have a poor connection and/or pay by the MB. And it is free of all the rubbish on the web!!! Reading that starts as soon as the page loads, without you first having to carefully click past a pop-up window which actively tries to mislead you into "consenting" to something nobody actually wants or needs, and which continues right to the end of the page without being interrupted by another pop-up begging you to subscribe to a newsletter.

And for an academic like myself...

"Reading in peace because there's no way for a page to play music or make a sound without you actively inviting it to, so you're free to enjoy your own background music, or maybe to just keep quiet if you're reading somewhere with other people around. It's up to you, like it should be; it's your computer, and they're your ears."

You can quietly browse in an office or without any risk of disturbing anyone, without the fear that 120DB music or autoplaying videos are going to alert the boss to what you are doing or wake up evryone in the house.

You can be sure you will not be redirected without permission, tracked, be presurised to install junk (and potentially malicious software or browser add-ons). It is 100% free of cookies (and nagging to accept them on every page you visit), and free of CPU heating, battery draining and mobile data wasting scripts and calls to third party domains.

Young visitors can browse safely, and their parents can be sure they will not be redirected to inappropriate content.

Gemini Quickstart

A 'Gemtext' tutorial: writing 'Gemtext' is easy!

Font packs for Lagrange (Adds language packs for Languages other than English/European)

A few of my students ask questions such as... Why don't I just use Wordpress? Besides my ethos of being as independent as possible (my plans to leave the UK, my use of open source software, my plans to have a "non-conventional" family structure and run a business overseas are other manifestations of this) - I also want to avoid the multimegbyte crud and over-commercialism that Wordpress promotes. And... their server is blocked in China too - excluding 1.4 billion people.

See also my earlier post on Gopher...

Yes, 5.8GHz WiFi is indeed faster than 2.4GHz WiFi. But not for the reasons people assume...

A rare (for these days!) Victory - for "common sense" - which is not so common nowadays

Is the "old internet" making a comeback! Long live the old internet (of which Gemini and Gopher are a part)...

The word "investment" here is about as accurate the the name "The Democratic People's Republic of Korea"...

Exclusive! The Great British Hidden Responsible Behaviour Tax (or, Scam/Swindle if you prefer) revealed. Don't gamble with your loved one's future. A must read for the Responsible in the UK... Anyone who assumes I will suffer in silence here clearly doesn't know me. Well, you will now....

The high cost of technological illiteracy to society

One man's clever response to being 'let go'

The Gemini FAQ can be read here. It explains the Gemini ethos if you are new to Gemini.

Search Gemini

Gopherpedia.com is Wikipedia on Gopher - great for the bandwidth deprived

Ubergeek News - several links to news sites

Leaving the web behind. There is more to the internet than the world wide web. And other protocols besides HTTP...

The benefit of running your own web (or other) site, and self hosting it

What is ZeroNet - and why might I test and eveloate it's usefulness

What you learn about the internet if you run your own server...

Why mesh networks are a great idea

Why I use self signed TLS certificates, and embrace gemini's standard use of them

IoT: Rise of the "Internet of things"

Christmas statement 2024 on Gemini, for the first time!

Christmas statement 2023

Christmas statement archive

Portfolio for Africa

New life-saving Malaria vaccine available in Burkina Faso

Proceedure for registering a school in Nigeria

(Why I have no interest in beginning my business in the UK - although I have my vested interests elsewhere, of course!)

Bread & Butter basics: Housing in the UK is ever more elitist - An investment for the wealthy, unaffortable for others, and often rundown and bady insulated. In the worst cases, a potential death drap (see Grenfell for example.)

Why is long term sickness amoung working age people (16-64) increasing in the UK?

Rishi Sunak: Where did it all go wrong?

Good reasons to emigrate from the UK...

My mother says I should stay here in the UK. I am taking other advisement. Here is why.

Should young people emigrate from the UK? A financial nobrainer perhaps...

During the Pandemic, working from home gained traction. But why can toxic wokplace culture and micromanagement follow you home?

After the CMS, cost of living crisis, blocked bank accounts and "government" gross incompetence, now this! Why I have no plans to begin a new life here in the UK...

The truth about wage stagnation and UK living conditions. The stark truth.

Brutal costs of living, low growth, wage stagnation, high inequality, high inflation... And now recession. The truth about the UK economy which the government don't want to talk about. The truth revealed.

"There is no such thing as society". Margaret Thatcher.

If anyone were to ask me: "What is your most enduring mamory of the 1980s?" I would not be answering the Rubik Cube, Sinclair Spectrum or BMX bikes. Oh no. My most enduring memory has to be? Tthe godawful grating voice of Margaret Thatcher - all through my formative years. Little wonder, then, that when she appears on television now, I change the channel.

Hail the great patron saint of inequality: Margaret Thatcher. And she brought us? Inequality.

The Great British Leasehold (er, sorry, don't you mean fleacehold!!!!) Swindle

I am beginning to experience age descrimination. Illegal? Yes. Easy to prove? Most certainly, not.

What happens to debt in the UK if you move abroad?

Why do I have such an integrated and complex mesh of interlinked banking, income sources and transfer services, and what inspired this infrastructure design?

One family explain how the increased cost of livng is affecting them

Department for Work & Pensions support payments (DWPCOL on your statement)

Department for Work & Pensions report into payments and their accessibility

And now, an economist agrees. What will it take to make the politicians listen??? Since when have they believed inequality will repair the failing economy?

The legacy of Margaret Thatcher - impacting young people hardest

Are living conditions why young people are leaving?

If you are poor, you must suffer

..And my intentions to do precisely that. And then provide advice to others doing the same. Watch this space.

I have enough... what I plan to do ASAP.....

Migration risks become widespread as a toxic combination of economic stagnation and surging growth elsewhere lure young people away...

Example: An older British man gives his reasons why life is better overseas. The weather is not the only reason...

Left behind: How the online revolution is failing our elderly people

Left behind: Intergenerational Unfairness report from the Intergenerational Foundation (PDF)

Left behind: Intergenerational Unfairness report from the Intergenerational Foundation (XPS)

Left behind: Intergenerational Unfairness report from the Intergenerational Foundation (OXPS)

Reasons to leave mentioned (briefly) on LBC

The next "brain drain" - only this time, a withdrawl rather than a deposit...

Will we see a mass exodus of younger people seeking a better quality of life overseas?

Having been robbed at knifepoint twice, and nobody was ever caught - here is an example of why modern policing is an absolute joke!

An old friend once said that I have a 'military mind'. Opinions are, it seems, divided here. But here is my take on it.

"The UK seems incapable of solving its own issues, and things are set to get worse" Well - actually I did not need an economist to tell me this...

Report from the Joseph Rowntree Foundation - 'Dickensian' poverty and destitution in the UK. PDF file.

The above report - text only, but can be read online.

"For a decent standard of living, we all need security and stability in our lives – secure housing, a reliable income, and support when things get difficult. For too many of us, there is no such security. Millions of people in the UK are struggling to get by, leading insecure and precarious lives, held back from improving their living standards. It’s time to take action on poverty and put this right." Joseph Rowntree Foundation, January 2020. (Before COVID-19 hit, making matters worse! This was followed by the cost of living crisis.).

"In work poverty" is on the rise. Let us define what it really means

Working but poor: millions in the UK are working, but still in poverty. The government's preaching about "work being the best way out of poverty" do not add up. Except, that is, to tax revenues. But not necessarily, to your finances nor your ability to support your family.

All-party Parlienmentry Group on Poverty - so the government is aware and does nothing, just as with the housing crisis. Inequality in action.

Jay Starmer, leader of the opposition on the last Conservative budget before the ellection. Great oration; grim reality.

Really? The end of the Conservaitive Party? What a sad day for the wealthy few (and for my mother!). What a great day for Britain

Why most younger British people hate the Conservative Party: They will have nothing to conserve

The dark heart of the British Conservative Party

What is my official personality type?

Occasionally, I make reference to a 'polyamorous' relationship. But what does it actually mean? Let's demystify this.

Unconventional? Maybe. But happy and functional? For sure: An example of a polyamorous family.

Why I grant my ladies personal autonomy, and give them equal treatment and equal rights: The key to making a polyamorous relationship work. By a polyamorous man

When I leave here, I intend to campaign against this injustice...

Can I really move on and date again after an abusive relationship? Yes - but you must heal and be ready first...

I should have thought of this in 2006: How to recognise a toxic person (similar to my former wife).

Common tactics used by perpetrators of abuse

Why am I so anti-Micro$oft? Why does my server run Unix? And why only my teaching laptop has Micro$oft junk on it. (I cannot use the correct terminology as ladies are reading this...)

The rollout of Windows 11 was the time I wish I had switched to Linux instead. But can I teach on it? (Later I might experiment to find out.)

Wirth's Law - so, you are paying through the nose for an upgrade? To run the latest bug ridden bloatware from Micro$oft, and paying double for the privilege?

Yes, this program is real. No, it is not a joke. Commercialism and commercial software at it's worst. You don't want to be running Windows anyhow you know...

...And why I am not a fan of Apple either. Megaexpensive, captive market, consumables? No way!!!

The US has filed a landmark lawsuit against Apple which accuses the tech giant of monopolising the smartphone market and crushing competition.

Why do I use Openoffice, and how does it matter to students? An explanation of the 'why'.

Some networking books are good, others are a waste of money!

The rare and interesting: TCPMUX, the forgotten protocol

RFC5335 - Port numbers and services, from the Internet Assigned Numbers Authority (IANA)

Future of photovoltaic (solar) power

Countries most vulnerable to climate change

NO this is not a juke: The White house has directed NASA to create a time standard for the moon, Co-ordinated Lunar Time. Why?

UPDATE!

Well, I have just returned from my second visit to China on a cultural exchange.

In theory I will be eligible each as an opportunity at a Chinese university if

I complete a third such exchange - so I am told by the organiser of the exchanges.

In the meantime, I will consider my options for English teaching.

If I can manage to get a position doing so, then I can work in a place

where living costs are low.

In the meantime, students who are among my regular core of long term students,

who have been unable to take lessons while I was in China should take advantage

of the opportunity to catch up, and I will have Christmas and new year available.

In the Christmas/New Year period in what should (I hope!) be my last in the UK.

For younger students, you have school holidays so what are you waiting for?

Older students have time off work in the majority of cases also. And when I

have reason to celebrate Christmas again, I will want time off myself. But not

this year. Strike while the iron is hot, as the saying goes! There is a story

behind this..

I have carried out an analysis of which countries pay English or engineering

teachers well? I came down to...

• South Korea;

• Japan;

• China;

• United Arab emirates.

And my conclusions?

After a long and in-depth analysis of which countries paid well, I conducted

extensive analysis of their living costs and demographics.

United Arab Emirates has high living costs, so I will struggle to save.

Japan and South Korea also have fairly high living costs, and initial interviews

in the summer of 2023 revealed a lot of competition;

China stands out as it combines low living costs with good pay for teaching

staff. And - it has the added attraction in that I have now taught (at a

Chinese University!) in person on two separate occasions now; - online on

two occasions back in the days when COVID-19 made it difficult or impossible

to visit in person.

After any 'teething problems' I expect to settle in well.

I vitally need to be in a position to relocate and save for the business I plan

to launch in West Africa. See:

http://dfdn.info/africa for details!

So... I am likely to teach for one term in 2024, visit Burkina Faso in the

summer break, and complete a year in 2024/2025 to save. I think this will

suffice. I will review this in 2025. Those who know me well know my motto..

"If a vital job needs to be done, do not procrastinate. Give me the

opportunity and the resources, and I will get the job done. No excuses!"

Any questions anyone? David, December 2023

For my pictures from the visit, publiched for the first time on on Gemini:

Enjoy! David, December 18, 2023

[Can Gemini (or Gopher) display images? Yes, of course! But not inline. It saves bandwidth for those paying by the MB, a large part of why I use them! Click on the link to display.]

Interesting: Gemini seen by a HTTP client developer

One thing I like about Gemini is that is simple and there is no need to render the file to another format, because it is just plain text and is easy to work with. I also like Gopher

for this reason - ***MUCH*** quicker and less error prone than writing HTML! Oh, and those not in the know can only dream about an online experience free of all the obnoxious

crap we are ***only too used to*** in the world of HTTP(S) - cookies (and being continually nagged to either accept them or change settings for every single site we visit!!!), pop-ups

getting in the way of work, incessant user tracking and invasions of our privacy, and being bombarded with autoplaying audio and video which draw the attention of colleagues (and

the boss!) or wake up everyone in the house late at night... the list goes on and on.

Why am I interested in using Gemini (and indeed Gopher) as part of my operations? Because I want to offer content which is free of cookie questions on every page, and which does not rely on megabytes of resource devouring, browser crashing javascript, request tens of megabytes of bandwith and money costing advertising, and invade the privacy of my visitors in true Orwellian style, to load. That is why. Nothing more to it than that!

It's very simple to learn! How to create 'Gemtext' pages

How the "Small Internet" is making a comeback - great news for the bandwidth deprived

Ten Commandments of the Small Internet

How to protect (or restore) your internet freedom. And what the term "internet freedom" really means

Self signed certificates are recommnded on Gemini (Gemini does not support redirection etc) - but why not the web?

Why the internet of the future may not be the internet we want

Alternative networks to the Web - boldly leave the realm of corporate controlled cyberspace

The "old web" still exists! It's just drowned in a sea of sites bloated for the purpose of tracking and advertising. What would be nice is a no-bloat search engine, which would only

index sites that don't require 25MB of JS and 425 requests to third-party domains to load.

This is what a typical website does today...

1) Get minimal html containing links to javascript package and styling.

2) Make request to get big javascript package.

3) Make request to get relatively small css styling.

4) Load and execute javascript package.

5) Javascript makes api calls to get page content.

6) Get content and populate page.

7) Page content contains links to images and tracking/advertisement scripts.

8) Make requests to get images and tracking/ad scripts.

9) Ad scripts make more requests to get images / gifs / movies, etc.

The majority of the slowness comes from steps 2,4,5,6,8,9. Blocking ads helps steps 8, 9. The fact that people are actually using a dedicated Raspberry PI computer for

the sole sake of ad blocking on their network bears testimony to how bad the nightmare has become. However, steps 2, 4, 5 and 6 are just in-fashion bad development practices.

Looking at the above, it is very clear that the whole process is a prodidgal waste of resources - bandwidth, CPU power, memory, and the battery of the device on which the content

is displayed! An application such as Pi-hole uses DNS filtering to selectively block ads and malicious domains across your entire home network. Cool! The advantages of this

approach are clear: you don’t have to install ad-blocking software on each and every device in your household. Moreover, it only needs to be set up once. The only drawback? Of

course, it only protects you within your own network, not when on mobile data, at work/school/university, hotels etc...

Both Gopher and Gemini both are MUCH more bandwidth efficient than the web for the above reasons. Great for clients in places or on limited contracts or where one pays by

the megabyte, as well as for those for whom privacy is important. Trouble is, the less well informed nowadays have a web browser and little else. There is PLENTY more to the

internet than just the mess which they call the web - for the er, less educated, the web is synonymous with the internet. It isn't! See port numbers and services below...

Why is bloatware (including web browsers!) becoming an increasing problem?

The Gemini service was launched in September 2023. It has proven a success.. It is here to stay in 2024.

For more good reasons to use Gemini, and the motivation of its developers, see here.

Gemini Questions and Answers - MP4 Video

Gemini Questions and Answers - MP3 audio only.

How to protect your privacy online (when not using Gemini) is explained here. But no method is 100% effective.

Users requiring NFS, AFP or (Only over VPN) Netbios access working with us in future must contact me.

***IMPORTANT NEWS UPDATE - PLEASE READ*** Available in English, French, Italian, Ukranian and Mandarin Chinese.

Home

Frequently Asked Questions

Think "The Internet" is just the corporate web? Think again!

Known Gemini servers

Philosophy behind the Gemini Protocol

The podcast referred to in the document above

Installing a server

Site content

F-Droid is an alternative app store for Android - you can obtain useful apps such as Fingerlist (for the finger service) and Lagrange (client for Gopher and Gemini, update uere also)

Finally the EU's Digital Markets Act forces Apple to allow rival app stores (Similar moves are afoot in the UK). The EU's Digital Markets Act is effective from March 2024.

General downloads including Gemini/Gopher clients and beta apps for Android (the above EU legislation may, in time, make veta testing feasible on IOS)

Best Gemini Practices for content providers

Freqiently asked questions about the Gemini protocol

Port Numbers & Services

Complete RFC listing - updated via rsync - on Gopher

What is that kludge known as network address translation?

Network protocols explained

Why is net neutrality important - and why some countries hate it!

Very important: use rsync to back up your system - either manually, or better, automatically! Here is how.

Good practice when naming files

Avoid the devestating question: "er, you did make backups, er, didn't you?!"

Interesting review - Preply versus Italki - the truth revealed

Preply's preditory pricing plan revealed - why I tried - but sadly failed - to get onto iTalki

Indeed I tried unsucessfully to get onto Italki. I was declined. Age descrimination is everywhere I look. You should gather by now that I am a firm

proponent of human rights - and fully behond those standing up for their human rights...

How housing costs in the UK outstrip real wages (a few years old, but even more pertainent now than when it was published!).

What in the name of the lord is wrong with the UK housing market?

Countless governmants have barked on about "leveling up". But what's the reality? A shovel full of B*******!

It makes me feel ashamed to be British: "If Britain is so wealthy, then why are people forced to use food banks?"

Poverty could push the UK back to the Victorian era of sociual divides

I love listening to James O'Brien. He is on LBC on 97.3 FM in London. Elsewhere, you can listen online. You can stream from their website, or try apps you have already. And here are some programs. Let us see how streaming on Gemini works. Try these examples (Lagrange for example supports MP3 streaming. See the two following links.

Worst UK government policies of all time - two hours isn't enough!

As if I did not have enough reasons NOT to begin a new family in the UK...

A tale of two nations: there are the 'haves' and the 'have nots'.

Would I sacrifice my own life for my country in 2023? My position revealed.

Post Covid-19, most people do not want to return to the office. At least full time. Why has there been such a regime change?

The nature of inequality in the UK

If Boris Jhonson is the world's most infamous serial liar, who is the great social Darwinist? Meet the infamous 'lady' herself, who took the Wizard of Oz song "The Witch is Dead" to number 1 in the charts when she did the best deed in her life...

Rishi Sunak: Do the one and only honourable thing. We had the dress rehearsal. Time to get on stage, and accept defeat!

If only Margaret Thatcher could die twice....

The people trafficing gangs tell you the UK is the promised land; just hand us your life savings, and we will give you an unseaworthy boat to reach it.... The streets of London are paved with gold (as in Dick Whittington). The 'government' talk of a strong economy. And my conservative party supporting (and niave, tragicommic mother, who has not worked since I was born) says this is the best country in the world. Oh, and by the way, Happy Christmas.

Why did France not have a large empire like Britain's, despite being almost equal in power at the time?

So why, then, in the year of the lord 2024, does this happen??? The reality, per head of population, is that inequality is worse on 2024 than when Charles Dickens wrote Oliver Twist. No, I m not making this up. By god, do I wish I was.

Oh, and this too...

When the Nightmare Came - My book to be published after I leave the UK

The Sequence of events which changed my life forever...

The strange and unusual things people put in their wills

The 'Partygate' scandel exposes the social misfits "representing" us

"If" the Conservative party wins the next generl election, will we see a return to the Cameron era No thanks...?

Is Russia (at least in its present form) a dying nation?

Why I am drafting a contingency plan to evacuate my daughters to Africa - as a Christian man, I pray it will never be needed

Complete list of transport layer protocols which run over IP

List of OSI protocols by layer

International calling codes

Five biggest pitfalls of international money transfer (PDF)

Note that unlike Gemini, Goper and HTTP are not encrypted - these pages are public access however.

Sister site on the web

Teaching ralated pages

An example of a "student from hell" - no prizes for guessing, I won't be teaching her...

Sister site on Gopher

A demonstration of my electronic design work. Most designs are however secret. (Note: will crash Windows version of Lagrange (use other client pending bugfix)

Cambridge Advanced Dictionary of the English Language

Files related to amateur radio, scanning and shortwave listening.

A trip down memory lane: UK Scanning Directory as it was in 2009.

Guide to UK radio spectrum - complete, but allocations may change from time to time.

Pirate Radio Survival Guide - from the 1990s

How to be a radio pirate (old, but still interesting; from the days of BBSing.

History of Amateur Radio - I have been licenced since 1995.

Chatter heard on Scanner leads to criminal charges

History of CB Radio - one of two entries for me into the radio hobby (Amateur radio licenced July 1995; my callsign is G7VDI)

UK parlienment debate on CB radio, 1979

A compilation of articles from an expert. Well worth a read!

Evolution of the universe from the big bang to its eventual heat death

My pictures from my second visit to Yancheng in December 2023. And how the visit went!

Amateur Radio related pages:

AOR - My viewpoint before the latest digital receivers came in 2015!

Former UK Home office Radios

Teaching the Icom IC-R3 new tricks

Review of the Misumi WCS99xii Video Scanner

Preamps - the best thing since sliced bread? Not necessarily!

The story of Britain's fight for legal CB

The UK Radio Spectrum

DMR, D-Star or Fusion - which is right for you?

My own comparison of "the big three" from 2016. After my review of the Amazing AR-DV1.

My Review of the AOR AR-DV1 completed 24/12/2015 as promised. In the final complete year in the marriage which almost killed me.

What is RF (radio frequency) propagation?

RF propagation is at it's most fascinating within the high frequency range (3 - 30 MHz). A brief description of the HF amateur band's charactoristics.

The last two links testify to how I am able to succeed in the face of adversity - and you ain't seen nothing yet! David, G7VDI

Brexit: Idiots rejoice

A little bit old (!) - 1987 - but it has stood the test of time

Beginners guide to Unix - old, but good.

So, you need to keep your Unix system secure, do you?

General guidance on how to make your computer more secure than most

Beginners guide to computers, from the good old days of DOS. Still informative, and a trip down memory lane!

An early guide to the internet. Oh, how I long for those bygone days.

An early hitchhikers' guide to the internet

A history of the internet: how it all began

The unexpected value of IPV4 (Internet Protocol version 4) address space

Computer Archive history of Unix

Hacking for Dummies - I wrote this in 2002 [EPUB]

Hacking for Dummies - I wrote this in 2002 [PDF]

Yes, it happens, is unethical, bad for the environment, and wrong. Oh yes, and a way to make me an ex-customer. Planned obsolescience.

Why do I use Linux on all devices but my teaching laptop (and I would use Linux here too if I could). And why do I plan to promote Linux in Africa in particular?

Automatic updates (expecially Micro$oft) - blessing or a curse???

Software killstitches (- see also planned obsolescience!!!) and how to avoid devices which secretly contain them. Is there no level of depravity companies won't sink to!?).

Another history of the Unix operating system

The life of Alan Turing - Huge achievements, great injustice

Electricity supplies around the world - important for our business, PDF

Electricity supplies around the world - Postscript

What if your neighbour is using your electricity?

Nightmare products which seem destined to last forever!!!

How to backup your entire system using Rsync - a must read!

Exceptionally well written - but a true complaint letter!

NOORo3 Solar power thermal power plant, near Ouarzazate, Morocco.

I just designed a PWM inverter. What is digital pulse modulation anyhow?

See here for an explnation of PWM in power electronics.

Chemical Elements Infographics (RSC, PDF, ZIP archives)

As I am interested in Photovoltaic (solar) and other forms of renewable energy, I would certainly like to visit Quarzazare, Indeed,

I am intending to base a business in this in West Africa in years to come.

See my portfolio for details. Currently available in English and French.

Long before I had international plans, I was heartily sick of the UK job market. Hundreds chasing every job, lack of experiance, no job security and parents not on my wavelength... and the years of bullying. Next came the abusive marriage and then the CMS ordeal. None of these factors did me any favours. And now, age descrimination. I did follow advice such as in this article. But to no avail. I am now a fully fledged international man... Time for pastures new.

External links (I am not responsible for the content of external sites).

Those who have visited http://dfdn.info/radio will know I am a licenced radio amateur since 1995.

Directory of "Geminispace" - I hope to be there soon!

Shared capsules - want to add mine there.

List organised by topic. Useful!

Gemini Related software (clients, servers editors, etc)

International ISO 4217 currency codes (PDF)

Gemini search engines currently available:

Getting started with Gemini

A Gemini search engine. Like google on HTTP, Archie on FTP, Veronica on Gopher...

Another Gemini space search engine

Search engine acclaimed to use minimal computing resources.

The following are here for reading practice and for general interest. For confident English students only!

Rules made by the I.T Syndicate

Use and misuse of computing facilities

Authentication issues

Reports of the I.T Syndicate

The web is dead. Long live the internet

Update Lagrange (my recommended client for Gemini and Gopher).

Note: all available except IOS (Sorry, Apple policy not mine, Lagrange available on testflight only):

To test beta versions of apps and App Clips using TestFlight, you’ll need to accept an email or public link invitation from the developer and have a device that you can use to test. You’ll be able to access the builds that the developer makes available to you.

If you’re a member of the developer’s team, the developer can give you access to all builds or certain builds.

Required platforms:

iOS or iPadOS apps: iPhone, iPad, or iPod touch running iOS 14 or iPadOS 14 or later. App Clips require iOS 14 or iPadOS 14, or later.

macOS apps: Mac running macOS 12 or later.

tvOS apps: Apple TV running tvOS 13 or later.

visionOS apps: Apple Vision Pro running visionOS 1 or later.

watchOS apps: Apple Watch running watchOS 6 or later.

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Gemini clients include:

Name Platform License Written in

Amfora Terminal (TUI) GPL 3.0 Go

AmiGemini GUI (Intuition) MIT C, Intuition

asuka Terminal (TUI) MIT Rust, ncurses

AV-98 Terminal (CLI) 2 Clause BSD Python

Bollux Terminal MIT Bash

Bombadillo Terminal GPL 3.0 Go

Buran App (Android) GPL 3.0 Kotlin

Castor GUI (GTK) MIT Rust, GTK

Castor9 GUI (Plan 9) C

Deedum App (Android and iOS) GPL 3.0 Flutter, Dart

Diohsc Terminal (CLI) GPL 3.0 Haskell

dillo-gemini Plugin (Dillo) FSFAP Shell

Elaho (gemini-ios) App (iOS) MPL 2.0 Swift

Elpher GUI (Emacs) GPL 3.0 Emacs Lisp

Eva GUI (GTK) MIT Rust, GTK

Fafi GUI MIT Racket

GemiNaut GUI (Windows) GPL 3.0 C# for Microsoft Windows

gemini.filter.dpi Plugin (Dillo) MIT Go

Geopard GUI (GTK) GPL 3.0 Rust, GTK

gmni Terminal (CLI) GPL 3.0 C

gplaces Terminal (CLI) GPL 3.0 or later C

Jimmy App (macOS) MIT Swift

Kristall GUI (Qt) GPL 2.0 C++, Qt

Lagrange GUI (Windows, macOS, Linux) 2 Clause BSD C, SDL

wMoonlander GUI (GTK) MIT Rust, GTK

Offpunk Terminal (CLI) 2 Clause BSD Python

Rocketeer App (iOS, macOS) Swift

Seren App (Android) Kotlin

Starfish GUI (elementary OS/Linux) GPL 3.0 Vala, GTK

Telescope Terminal (TUI) ISC C

Twin Peaks GUI (Windows) GPL 3.0 C#

VIRGIL99 Terminal (TI-99) Assembly language

© David Norris, DFDN.org