Networking
by Erick Engelke

 

My first commercial success was a DOS based help system in 1986 which implemented something like Gopher using network file shares to host the data files.

The in the late 1980ís, building on the work of Geoff Cooper and many others, I produced a ground-breaking TCP/IP implementation for DOS called WATTCP.  It could fit in TSRs (25kB), it could be linked into user applications where it could offer almost full fast Ethernet performance, and it offered a standardized configuration mechanism.  It was later incorporated into the worldís most popular communications package of the time, MS-KERMIT, and was even used on the International Space Station.  Also, connected with industry-leading Pegasys Emailer, PINE KLOSís game technology, and others, it was used by millions of people to connect to the Internet.  Symantec used it for the Ghost software to populate workstations with Windows over TCP/IP networks.TSoft added the fastest PC based NFS client in the market.

In 1998 I documented WATTCP in the WATTCP Manual, my first book.  It became an unofficial national best seller.

Gisle Vinum extended WATTCP to 32 bits, calling it Watt-32.  Original WATTCP apps could be recompiled or one could use BSD-styled sockets.  Very impressive.  It provides networking for the Arcane web browser, a DOS Java VM, and others.It is still widely used in 8086 and Z80 compatible embedded systems.

In the 1990ís I produced eRTOS and the eRTOS manual.  It was not really a real time OS, but it was an embedded OS that could be used to house web servers, SNMP systems, and much more.  It was used on many embedded 386 systems, such as those produced by JK Micro Systems.

Over the years I have implemented so many network protocols that itís hard to remember them all.

I wrote a TELNET server for DOS in 1999 called Everywhere Access for Supro Network Software Inc.  It was like PC-Anywhere or Microsoft RDP, except that it let you TELNET into a DOS computer.  We took that multiuser in the 1990ís with up to 100 concurrent users running DOS software using OS/2 as the virtualization engine.  People talk about VMs now, we were doing it en-masse in 1990.  It was used by the IRS, insurance companies and many others to remotely access CD-ROM and Email software over the Internet.  Edify used both the DOS and the OS/2 software to automate workflows. 

I wrote a VOIP implementation, emergency notification systems, LDAP and RADIUS servers and clients, SMS based texting systems, countless web server applications. 

I implemented a web filtering application which let corporations reject Web usage of inappropriate sites.That is implemented as a device driver.Iíve written a lot of device drivers over the years.

I implemented asset management systems where Apple OS X and Windows stations submit their particulars and software assets, and the server uses open source iTop to manage the data.

I wrote a number of other books describing Web and Mobile development with HTMl5 and databases, covering topics including DDD.

My fourth book was about Elevate Web Builder (EWB), an excellent RAD development environment which can be used to build beautiful HTML5/JavaScript/Ajax applications using tried and true structures of Pascal.Itís like Delphi for the Web.

My fifth book built on EWB from the fourth book and added mORMot, an open source database middleware which talks to all major databases but spits out JSON for REST and highly secure open web based systems.

Still keeping with the EWB theme, my sixth book filled with extra components for EWB.These include TColorGrid, TTreeView, TSimpleHTMLEditor, TGraph, etc.

I wrote a free software distribution system called Tuque.Itís like MS SCCM, but which works with Linux, Windows and OS/X clients, and uses a Web based GUI.The servers typically run on Unix.We use it to support a couple thousand computers at the University of Waterloo.

In 2018 I used Machine Learning to pinpoint the source of errors on PCs on my Facultyís network.

To see some of my slideshows, see http://www.eng.uwaterloo.ca/~erick/presentations

For history, my earliest work has been referenced in three books to my knowledge:

        Undocumented DOS 2nd Ed. Ė I contributed to the knowledge of file sharing in mid Ď80ís

        Idiotís Guide to the Internet Ė Talks about but misspells WATTCP

        MS-Kermit Ė WATTCP added TELNET capabilities

 Thatís in addition to my own books, most of which are available on Amazon or on my web store.