Nginx: unknown directive “rewrite_by_lua”

“unknown directive rewrite_by_lua” : How to fix this error? When you work with Nginx, a powerful feature is to take advantage of Lua scripting language directly in your configuration files. You can come across solutions that involve Lua scripting. If your setup doesn’t include Lua module, you’ll get an error message like this in nginx … 

 

Nginx: mass permanent redirects

When I say “mass”, I mean reasonable amount of redirects, like a couple of thousands. I had to migrate a blog to a new URL structure. This migration led to create about 600+ unique redirects without any shared patterns. To solve this, I used a nginx configuration file containing all the redirects and I included … 

 

Android: center text horizontally and vertically in a TextView

By default, text appears on the top left of a TextView. To center it vertically, you need to use the gravity property : In your xml layout file, add the following property : android:gravity=”center_vertical” To center the text vertically and horizontally : Use the following property : android:gravity=”center” To do it programmatically, use the following syntax : … 

 

Install gem as user on OSX 10.10 Yosemite

Use case : install a specific version of capistrano to deploy stuff somewhere Let’s say you need to install capistrano 2.* to be able to use your deploy scripts. In this case, I’m running a fresh Yosemite install. Let’s say we’ll need to setup a specific ruby version with a specific gem version. To do … 

 

Ubuntu: start sphinxsearch with specific options

By default, on Ubuntu, SphinxSearch is using /etc/sphinxsearch/sphinx.conf and /etc/default/sphinxsearch to start/stop daemon. If you need to use specific command line options (like -c ), you need to update your /etc/init.d/sphinxsearch In the do_start() function, change the line : start-stop-daemon –start –pidfile $PIDFILE –chuid www-data –exec ${DAEMON} with start-stop-daemon –start –pidfile $PIDFILE –chuid www-data –exec ${DAEMON} … 

 

Install a specific version of sphinxsearch on Ubuntu 14.04

Current version of sphinx on Ubuntu 14.04 is 2.0.* If you need a more recent version, you can find a .deb package directly on Sphinx website : http://sphinxsearch.com/downloads/release/ Pick-up your package and install it locally : $ wget http://sphinxsearch.com/files/sphinxsearch_2.2.6-release-0ubuntu12~trusty_amd64.deb $ dpkg -i sphinxsearch_2.2.6-release-0ubuntu12~trusty_amd64.deb $ searchd -h Sphinx 2.2.6-id64-release (r4843) Copyright (c) 2001-2014, Andrew Aksyonoff Copyright … 

 

How to configure HTTPS/SSL under Apache and OSX

My setup : OSX : 10.8.5 Apache : # httpd -V Server version: Apache/2.2.26 (Unix) Server built: Dec 10 2013 22:06:35 Server’s Module Magic Number: 20051115:33 Server loaded: APR 1.4.5, APR-Util 1.3.12 Compiled using: APR 1.4.5, APR-Util 1.3.12 Architecture: 64-bit Server MPM: Prefork threaded: no forked: yes (variable process count) Server compiled with…. -D APACHE_MPM_DIR=”server/mpm/prefork” … 

 

Create a chrooted ssh user with Ubuntu and jailkit

I have a website hosted in /var/www/mydomain I want to create a chrooted ssh account to give access to a shell to my developers to execute commands and check logs. This is just a raw transcript how I did it with jailkit : $ apt-get install build-essential autoconf automake libtool flex bison debhelper binutils-gold $ … 

 

Using Symfony and xip.io in dev environment

The default app_dev.php in symfony only allow connexion from localhost. Code is as follow: if (isset($_SERVER[‘HTTP_CLIENT_IP’]) || isset($_SERVER[‘HTTP_X_FORWARDED_FOR’]) || !in_array(@$_SERVER[‘REMOTE_ADDR’], array(‘127.0.0.1’, ‘fe80::1’, ‘::1’)) ) { header(‘HTTP/1.0 403 Forbidden’); exit(‘You are not allowed to access this file. Check ‘.basename(__FILE__).’ for more information.’); } If you want to use xip.io to test your local instance with devices … 

 

Update your git repository remote origin

Let’s say you’re moving from one service to another, to update your origin url use the following command : $ git remote remove origin $ git remote add origin git@github.com:your_account/repository.git If you get an error message like this : You asked me to pull without telling me which branch you Do the following : $ …