Series

Misc

Lt1. Linux, GNU, diskless, single floppy, 1.44MB, 2MB flash RAM, ramdisk, rescue disk.

SGI IRIX 6.5. Misc user tips.

ZeroMQ async messaging. Can run brokerless. Runs on top of ITC, IPC, PGM, TCP, TIPC, UDP, or VMCI. BSD sockets-like API. REQ-REP, PUB-SUB, and PUSH-PULL pattern.

Your own blog like crystallabs.io. Hugo framework, minima-crystallabs theme. Clone and run. Quick success.

Osm

Computer cartography. OpenStreetMap (OSM), MapProxy. WMS, WMTS, Slippy, TMS, KML. Custom tile proxy and cache.

Computer cartography. OpenStreetMap (OSM), Leaflet, Slippy. Custom map viewer.

Computer cartography. OpenStreetMap (OSM), Mapnik, Tirex. WMS, TMS, WMTS, KML, Slippy. Leaflet, OpenLayers, QGIS, Marble. iD, JOSM, Vespucci, Go Map!!. GPS, GPX.

Unix

GNU/Linux and Debian GNU documentation. Where is it, how to access it. Man, info, tldr, /usr/share/doc/, TAB, IRC, RFCs, HOWTOs, FAQs, kernel docs. Quiz.

Original Unix, BSD, GNU, and Linux books, papers, videos, and similar materials.

Origins and history of Unix. CTSS, BTS, Multics, ITS, Unix, C, BSD, Unix wars, Motif, CDE, GNU, Linux. AT&T, Bell Labs, CSRG, UCB, Sun Microsystems, Novell.

Git

Git. Multiple repository origins. Projects mirrored at different hosting platforms.

Introduction to file versioning. History of version control tools SCCS, RCS, CVS, Subversion, BitKeeper, and Git. Funny story.

Security

Three-point VPN Gateway. WireGuard, IPTables/NFTables, DNS, dnsmasq. VPN server and Internet gateway on different machines.

Physical one-way data link. 100Mbps ethernet + UDP/IP. File transfer with ncat or socat and tar.

Docker

Docker. Images and Containers. Description and use.