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Weblog Archive Cutedge

by: Bernard Teo

Latest Joy of Tech!

Joy of Tech ... from Geek Culture

Creative Commons License

Copyright © 2003-2012
Bernard Teo
Some Rights Reserved.

Mon 04 Nov 2019

OpenVPN Enabler

Category : Technology/OpenVPNEnabler.txt

This is an experimental version of an installer for both the client and server components of the OpenVPN Server (for macOS Catalina only) :

OpenVPN Enabler For Catalina

Posted at 9:04AM UTC | permalink

Sat 12 Oct 2019

macOS Catalina

Category : Technology/macOSCatalinaEnablerApps.txt

My Catalina apps are (almost) all out...

MailServe for Catalina, 
DNS Enabler for Catalina, 
DNS Agent for Catalina, 
WebMon for Catalina

I am still working on VPN Enabler for Catalina.

Posted at 2:13PM UTC | permalink

Wed 09 Oct 2019

MacOS Catalina

Category : Technology/macOSCat.txt

I'm still working on new Catalina versions of all my apps. I have some problems still with the new method of getting admin rights, using launchd.

If you're interested to test a Catalina version of any of my apps, write me via email.

The one app that I still can't get to work on Catalina is VPN Enabler. No more PPTP, and L2TP over IPSec seems to have some unfathomable problem. So, I'm not sure if I can even get that to work.

More news over the weekend.

Posted at 6:34AM UTC | permalink

Tue 02 Oct 2018

macOS Mojave

Category : Technology/macOSMojaveEnablerApps.txt

This is the time of the year...

MailServe for Mojave, 
DNS Enabler for Mojave, 
DNS Agent for Mojave, 
WebMon for Mojave and 
VPN Enabler for Mojave 

are all out.

Posted at 2:59PM UTC | permalink

Sat 07 Oct 2017

SSL Libraries and High Sierra

Category : Technology/HigHSierraSSL.txt

Apple’s move away from OpenSSL towards LibreSSL (and I’ve seen mention of BoringSSL, whatever that means), has caused problems with MailServe and DNS Enabler for High Sierra. It means that both Dovecot and the named server can’t find the ssl libraries in their usual places.

To solve this I have to bundle OpenSSL libraries inside MailServe and DNS Enabler for High Sierra, so Dovecot and the named server can find them.

Initially, for versions 11.0.1 of MailServe and DNS Enabler, I've placed my bundled openSSL libraries inside /usr/local, and everything works again.

But then I thought better of the location. Some users may already have their own custom versions of ssl libraries inside /usr/local, which is a popular location for such things. So, in order not to clash with them, the better place to put the ssl libraries specifically needed by MailServe and DNS Enabler is to put them inside /usr/local/cutedge.

So the latest version, 11.0.2, of both MailServe and DNS Enabler for High Sierra does that. But in order to do this, the user has to do a De-Install from the Help menu, so that the app has a chance to clear the previous stuff and make the new linkages for things to work again.

Very sorry about that. But Apple changes, relentlessly, and I’ve got to do my best to patch up and trudge along.

MailServe for High Sierra (ver 11.0.2) and DNS Enabler for High Sierra (ver 11.0.2) are available now.

Posted at 4:53AM UTC | permalink

Wed 04 Oct 2017

High Sierra

Category : Technology/HighSierra.txt

I’ve released High Sierra versions of all my “enabler” apps – MailServe, DNS Enabler, DNS Agent, and WebMon.

Do check it out, thanks.

Posted at 7:24AM UTC | permalink

Wed 05 Oct 2016

How to Digitally Sign an Installer Package

Category : Technology/HowToDigitallySignAnInstallerPackage.txt

After using the Packages app to build my MySQL and Postgres installer packages, this is how I “looked into” them to see how they’ve been built and make any last minute edits, and then digitally signed them with my Apple Developer ID Installer certificate:


(1) cd to the directory with the built .pkg

(2) pkgutil --expand PostgreSQL-Installer.pkg output/

(3) do any edit of the distribution.dist file in output/

(4) pkgutil --flatten output/ PostgreSQL-Installer.pkg

(5) productsign --timestamp --sign FAEEV5252R PostgreSQL-Installer.pkg PostgreSQL-Installer.signed.pkg

where FAEEV5252R is my Apple Developer ID.

And then 

(6) spctl -a -v --type install PostgreSQL-Installer.pkg

to check that the signing is OK and that it won’t be rejected by macOS’s Gatekeeper.

And that’s it.

Posted at 8:51AM UTC | permalink

Tue 04 Oct 2016

MySQL and PostgreSQL Database Installers for Sierra

Category : Technology/SierraDatabases.txt

I have new MySQL (5.7.9) and PostgreSQL (9.4.5) installers that will work specifically with macOS Sierra. They come properly signed with my Developer ID certificate, so you don’t get these nasty Gatekeeper warnings. And they come with their respective Sierra-compatible Preference Panes.

You can download them from my Sierra page.

PS: I built these installers using the very excellent, and yet free, Packages app from Stéphane Sudre. I’m really impressed by the quality of his work. So this is my expression of very deep thanks for the use of his app.

Posted at 1:16PM UTC | permalink

Thu 29 Sep 2016

Postfix Logging Stops in Sierra

Category : Technology/PostfixStopsLoggingInSierra.txt

Postfix stopped logging to /var/mail/mail.log in Sierra. And after I’ve updated Dovecot to 2.2.25, Dovecot stops logging, too.

I’m guessing that both could be the result of Apple’s move towards the Apple System Logging (ASL) facility.

But I have no solution yet.

I feel like Sisyphus, rolling the boulder up the Mac OS mountain, every time at this time of the year.

Update: looks like this is a known problem on macOS Sierra Server. Will put this aside and work on something else, for now.

Posted at 8:38AM UTC | permalink

Wed 21 Sep 2016

MacOS Sierra is here!

Category : Technology/Sierra.txt

The following page contains the download links for all the MacOS Sierra versions of our apps: 

They’re all free – I’ve removed all that serial number code. But gimme a break if I don’t get back to you quickly for support. It’s supposed to be a self-help thing. I’d rather spend more of my time building these apps.

Thanks for staying with us all these years, through thick and thin :)


(PS: Documentation pages not ready yet. This is for all those who can’t wait. And bug reports are welcome. Thngs that will break, will break).

Posted at 2:07PM UTC | permalink

Tue 03 May 2016


Category : Technology/DuomoIntro.txt

I'm working on this app, which I'm calling Duomo, that I hope can make a user (me, first of all) super-productive when working on web site design.


The picture shows how it's organised.

Window 1: The user might be managing the design for several sites. So this window stores the connection parameters for each site – account ID, password, how to connect, where the root folders are, that contain all the web site resources (pages, images, downloadable files, etc), for each site.

Window 2: For each site, this window connects the designer's private copy of the web site resources with the one that's sitting on the live web server, and its job is to keep both ends synchronised. A lot of designers, like me, work from places like Starbucks that have very slow Internet connections. So there's some Unix magic done here so that the uploading/downloading can go reasonably fast. 

Window 3: This is where the design of a single web page gets done. You see how the web page looks like, but you also see how the page is structured. Panel 4 shows you the content of the web page – how it is structured into sections, articles, headers, footers, asides, pictures, navigation links, summaries, etc. And panel 5 shows you how each element, listed above, looks like (with respect to colours, type-faces, spacing, margins, etc) and where each element sits, precisely, on the web page, whether absolutely, or relative to some other element.

The most powerful idea here is that you separate the content of a web page from the way it looks (its presentation, as controlled by something called a stylesheet). This way, the same content can be easily depicted in any number of ways, and each way can be designed to evoke a different sentiment from the viewer/reader.

The first time I saw this concept at work was at the csszengarden web site many years ago (css means cascading style sheets).

And I felt, this concept is so powerful.

In my work with databases I can see, in the future, that a lot of the content will be automatically collected, generated and filtered. That's what shows up on Panel 4 in the picture. You want the content and the structure here to be very clean (and accurate and verifiable). 

Then in Panel 4, this is where you play with the way the content looks, where you are concerned with colouring and the emotions.

So this why I wanted a tool that will work like that – you work with both your left brain and your right brain. And you go back and forth like that. Like a Renaissance Man, where there were no boundaries between knowledge. And things can move effortlessly between the arts and the science. 

So I thought, Duomo would be a nice name for an app like that (like in building a great cathedral – the Renaissance people worked with their whole brain; there was no separation between engineering and architecture). if I can actually build it, by hacking Apple's WebKit and Web Inspector. This is, of course, still a work very much in progress. But it's getting clearer, I think it can be done.

Posted at 2:44AM UTC | permalink

Thu 21 Apr 2016

Category : Database/FixXcode.txt

I have been searching Google for the solution to this very cryptic error message, "target specifies product type but there’s no such product type for the iphonesimulator platform", for months.

We've now come to trust Google to index even the minutest and most inconsequential of web pages so that if anyone in the world had mentioned that they've been stymied by a problem and, better still, they've found a solution to get past it, then Google would have found it on our behalf. Right? That's Google's prowess, and that's why they're worth billions, trillions even. Right?

But, no. I've searched fruitlessly for months. Nothing turned up. I was building libmysqlclient as an Xcode project, but every time the build will halt when it hit that "" error. I have since found a way to hack around that problem, but it held me up for months

Today, I restarted work on my Duomo project, my own replacement for Dreamweaver, etc. To do that I need to understand Safari WebKit. And the first thing I read today while working on Safari WebKit? "The first time after you install a new Xcode, you will need to run sudo Tools/Scripts/configure-xcode-for-ios-development in the Terminal to enable Xcode to build command line tools for iOS Simulator. Otherwise you will see the [stupid] error message ...”. 


There. So big. The solution's there. On Apple's web page. Or does Google avoid indexing Apple's web pages : )

Posted at 1:39PM UTC | permalink

Read more ...

Put your Mac to Work Now how would you do something like that?

Weblogs. Download and start a weblog of your own.

A Mac Business Toolbox
A survey of the possibilities

A Business Scenario
How we could use Macs in businesses

VPN Enabler for Mavericks

MailServe for Mavericks

DNS Enabler for Mavericks

DNS Agent for Mavericks

WebMon for Mavericks

Luca for Mavericks

Liya for Mountain Lion & Mavericks

Postfix Enabler for Tiger and Panther

Sendmail Enabler for Jaguar

Services running on this server, a Mac Mini running Mac OS X 10.9.2 Mavericks:

  • Apache 2 Web Server
  • Postfix Mail Server
  • Dovecot IMAP Server
  • Fetchmail
  • SpamBayes Spam Filter
  • Procmail
  • BIND DNS Server
  • DNS Agent
  • WebDAV Server
  • VPN Server
  • PHP-based weblog
  • MySQL database
  • PostgreSQL database

all set up using MailServe, WebMon, DNS Enabler, DNS Agent, VPN Enabler, Liya and our SQL installers, all on Mavericks.