IT Featured Articles on cool technologies, focused on System Administration and Programming Languages
On these days I decided to tune a bit my new shiny linux server box. I started to set up fail2ban. I think fail2ban is very imporant nowadays because it is a good example of a tool for slowing down attacks without closing your server too much. Fail2ban is a daemon: it wll monitor your …
I am studying Apache Kafka (a “distributed streaming platform”) and I stubled upon this conclusion: the “disk read fear” a lot of projects have in the past, is a fake. A lot of distributed database started tutorial with the statement “disk read are slow, write are fast” which is true to some extent, and accounted …
?FileSystem is faster than RAM [under your Operating System] Read More »
On this Christmas, a lot of us will pay more then $1000 for a new iPhone XY or for a similar Samsung one (twice the price of a netbook) and you will have in your hand a quite powerful machine: for instance iPhone used as Theorem Prover is faster then an Intel Workstation (!) It is …
Sometimes your winwos’ HyperV Hypervisor will refuse to start. The problem is tricky because the services seems started if you check them. Also the installation is successful, virtualization is enabled and so on. So what is wrong?
To understand Angular 4, after the “Hero” tutorial you should start from the Template syntax. We highlighted some statement in red below: Data direction Syntax Type One-way from data source to view target {{expression}} [target]=”expression” bind-target=”expression” Interpolation Property Attribute Class Style One-way from view target to data source (target)=”statement” on-target=”statement” Event Two-way [(target)]=”expression” bindon-target=”expression” Two-way …
UPDATED and BUGFIXED! MicroPython Repl command line is very nice, because you can telnet to the chip and read-and-evaluate python code. It is a great way of learning embedded IoT. The bad thing you cannot copy file while it is running, so experimenting get bad. Also an automatic module update would be a very nice thing to …
Because some friend of mine did not know about RUP, and deal with waterfall process, I decided to make a small recall for all poor young Project Manager dealing with bad developers, bad consultants and so on, out of there, The Rational Unified Process (RUP) is an iterative software development process framework created by the Rational Software Corporation, a division of IBM since …
An year ago, we discovered MSWindows was developed on Git as revision control System On this week, Microsoft decided to buy GitHub. I suppose they had a tons on projects on GitHub platform already! By the way, GitLab (the first competitor) now offers the Enterprise edition to open source project….
Cloud, DevOps, and Microservices are three strong forces are melting together. Containers is the key technology around them. Before docker, horizontal scaling via VM spinning was feasible but a slow speed, compared to the speed of a docker container boot. So do you want to learn docker without going out of business? Let’s go! So if …
Docker Shadow of Lights: docker on Raspberry Pi 2/3 Read More »
In this second article I will continue my jorney on LambdaMoo code base. The C code is very well written. Sometimes the API abuse global variable to avoid passing around identifier like output database file descriptor or the like. Because a lot of the system has been written in the Moo language, the core is …
Exploring a 23 years old code base: LambdaMoo MUD Part 2 Read More »
