Blocking NAPTR DNS queries from Asterisk pjsip

The reason: Asterisk kept querying a ultra slow (Orange) server for NAPTR records (from pjsip), making calls very slow (needed to wait at least 5 or 6 rings before the call could go on!). You would answer “but you just need to add a disable_naptr = yes in the pjsip.conf file! Well, no, I did, […]

Three different ways to connect two Go services with gRPC

I couldn’t find a single article explaining the different ways of connecting two Go applications using gRPC. After many tries, I came to the final 3 most useful ways to go: Basic connection, no security First, and easiest, is to not use TLS at all and not require any certificate. This mode is most useful […]

Unexpected change in Neovim configuration storage

I just noticed that none of my neovim configuration parameters were read today (yes, I know, it’s been a while I moved to atom for my Go programming). As of today, they were stored in the ~/.nvim directory and the main confiugration file was ~/.nvim/nvimrc . I checked the content of my configuration file, without seeing […]

Bye bye vim powerline, hello airline

[edit: You can find a really nice summary of airline on vimawesome] It is quite a pain to have some nice status line with vim. For this, until now, I was using the powerline module, that was cool, but has major drawbacks.

Combining jQuery Mobile and Flask-WTF may give you headaches, or why dashes suck in Python variable names

I thought developing using Flask on the backend and using jQuery on the front-end (navigator) would be quite easy. In fact it is, but there are some small traps that can take you time to resolve. A regular case would be, when developing a form, to use Flask with WTForms (Flask-WTF to the rescue!). No […]

Book Review: Tactics Time! 1001 Chess Tactics from the Games of Everyday Chess Players

I’ve been subscribed to Tim Brennan’s newsletter (sent out every week) for quite some time now, so when he wrote this cool book on chess tactics, I was really delighted. I was even more delighted when I saw that it is written in collaboration with Anthea Carson. All my kids know her for her animal chess […]

Fail2ban Configuration for NGINX anomalies

Fail2ban is a really cool log analyzer (mostly) that can block ips using several different methods (iptables, ipfw, ip route blackhole, etc.). The problem is that you have to define filters (regexes in fact) that will trigger the ban for each service, because each one has a different way to report anomalies. There are not […]

New version of chess PGN to TeX to PDF converter

OK, I’m shameful. After fighting with Scid’s exporter, and then correcting bugs in pgn2ltx’s source, I finally decided to take a look at that PGN file format. And guess what? It’s already composed of FEN notation. And guess what? that super-über cool new skaknew module for LaTeX gets its input as FEN!!

Updated mate-in-one document, now includes chess coordinates

Update: A new updated version of the PDF is available, which includes which side to play. After a request to have coordinates on the board, to be able to write answers (a really nice idea, especially that Ido begins writing), I noticed I couldn’t do it so easily, because the LaTeX module (chess12) didn’t support […]

Auto-provisioning with Asterisk and ST2030 Technicolor/Thomson phones

An introduction to the ST2030 The ST2030 is one of the few SIP phones distributed by Thomson (now changed name to Technicolor). In fact there are only 2 models: the ST2020, and the ST2030, and also a new one, the TB30, which is the successor to the ST2030. The ST2030 is supposed to have an […]