Jul 302011

Bye Bye Macports, Welcome Homebrew

Homebrew: The missing package manager for OS X

Why? well, the reality is, macports is not that good anymore.
Once you have many packages installed and start updating, everything start to break apart, lot’s of failing packages.

Homebrew is very easy to install, it’s fast and simple. That means you can make your own homebrew formula for your package so easily. oh, and homebrew is in ruby! :)

Back to topic, this is you how you get rails with mysql up and running with homebrew and rvm.

Clean up

To make sure to have a clean install, I recommend removing any previous .rvm installation and previous Xcode.

$ rm -rf ~/.rvm/
$ sudo rm -rf /Developer

1. Xcode

Install Xcode from AppStore. it’s 1+ GB download so it may take a while.
after it’s downloaded it will not install automatically, you need to open Applications and install again from there, the name will be “Install Xcode”.
You also need to install Command Line Tools for Xcode.

Better way is to go to https://developer.apple.com/downloads/index.action and download from there, you will have to login with a free apple developer account.
Download the 2 minimum require files

– Xcode 4.3.1 for Lion (1.85 GB)
– Command Line Tools for Xcode (171.70 MB)

Update: If you don’t want to download and install huge XCODE (3.0GB) :
It allows you to install the essential compilers, GCC, LLVM, etc.
PS: I have not tested it
Thanks JP for the tip.

2. Install HomeBrew

UPDATE: in the comments some people recommended to do create the folder “/usr/local/Cellar” before hand, due to some bug on homebrew.

mkdir -p /usr/local/Cellar
$ /usr/bin/ruby -e "$(/usr/bin/curl -fsSL https://raw.github.com/mxcl/homebrew/master/Library/Contributions/install_homebrew.rb)"

Installation instructions: https://github.com/mxcl/homebrew/wiki/installation

3. install RVM

$  bash -s master < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer)

Above im using the master branch, so that it works with xcode 4.3.1

Then after RVM is installed run these two 'one-line' commands, the second command will reload your bash with RVM.

$ echo '[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function' >> ~/.bash_profile
$ source ~/.bash_profile

Details instructions: click to read more

Note: you may have to add "--with-gcc=clang" to rvm for installing ruby 1.9.2 if you have Xcode 4.3+
Read this: http://crpcck.fr/index.php/case-study-template-education/

4. Install ruby 1.9.3-p125

OS X Lion comes with Ruby-1.8.7-p249, but we all want ruby 1.9.2/1.9.3 right?
RVM head and Ruby 1.9.3-p125 supports XCODE 4.3.1 http://www.lomadalodge.com/

$ rvm install 1.9.3-p125
$ rvm use ruby-1.9.3-p125
$ gem install rails bundler unicorn pg 
... and so on ...

I tested both ruby-1.9.3-head and ruby-1.9.3-p0, and 1.9.3-p125, and it works well with all my apps. Ruby 1.9.3 is faster than 1.9.2 booting rails, and way way faster than 1.8.7. So let's use the lastest Stable Ruby (1.9.3-p0)

See: can you buy zithromax at walmart.

NOTE: For Heroku I recommend you to use ruby-1.9.2-p290, if you use taps ("heroku db:pull/push")

Optionally you might want to install GIT, wget, http://mediamusique.com/, imagemagick and any other mighty software tools for daily use.

Example apps I'm usually required to install:

# brew install git ack wget curl redis memcached libmemcached colordiff imagemagick nginx sqlite libxml2 libxslt readline v8 rsync sphinx lzma geoip lzo 

5. Install Mysql

$ brew install mysql

one-line command:

$ mysql_install_db --verbose --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp

Once mysql is installed you might want it to load automatically each time you start your mac.

$ mkdir -p ~/Library/LaunchAgents
$ cp /usr/local/Cellar/mysql/5.5.14/com.mysql.mysqld.plist ~/Library/LaunchAgents/
$ launchctl load -w ~/Library/LaunchAgents/com.mysql.mysqld.plist

*check that the version I use here is 5.5.14

6. Troubleshooting:

if you have problems with mysql "cannot connect to /tmp/mysql.sock"
then create a file /usr/local/etc/my.cnf and add this:

port = 3306 
socket = /tmp/mysql.sock 
bind-address =
port = 3306 
socket = /tmp/mysql.sock 

if encounter errors with homebrew run this command and follow recommendations:

$ brew doctor

update: If you end up with Segmentation fault or cannot install Ruby-1.8.7, you might want to try this solution:

$ export CC=/usr/bin/gcc-4.2
$ rvm install ruby-1.8.7 

Important, also read this if you have Xcode 4.3.1+

by the way this is my /usr/local/etc/my.cnf optimized file, when using this file you may have to recreate your db

$ mysql_install_db --verbose --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp
port = 3306 
socket = /tmp/mysql.sock 

event_scheduler = ON 
collation_server = utf8_unicode_ci 
character_set_server = utf8 

bind-address =
port = 3306 
socket = /tmp/mysql.sock 
max_connections = 20

table_open_cache = 256
max_allowed_packet = 32M 
binlog_cache_size = 1M 
max_heap_table_size = 64M 

read_buffer_size = 2M
read_rnd_buffer_size = 2M
sort_buffer_size = 4M
join_buffer_size = 512k
thread_cache_size = 2 
thread_concurrency = 2
query_cache_size = 16M 
query_cache_limit = 2M 

default-storage-engine = INNODB
thread_stack = 192K 
transaction_isolation = REPEATABLE-READ 
tmp_table_size = 64M 

# MyISAM Options 

key_buffer_size = 32M
bulk_insert_buffer_size = 32M
myisam_sort_buffer_size = 32M
myisam_max_sort_file_size = 256M
myisam_repair_threads = 1 

# INNODB Options
innodb_additional_mem_pool_size = 8M
innodb_buffer_pool_size = 64M
innodb_thread_concurrency = 2
innodb_flush_log_at_trx_commit = 2
innodb_log_buffer_size = 8M
innodb_log_file_size = 8M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 90
innodb_flush_method = O_DIRECT
innodb_lock_wait_timeout = 120

max_allowed_packet = 16M 


key_buffer_size = 64M
sort_buffer_size = 64M
read_buffer = 16M
write_buffer = 16M


UPDATED (Mar 14, 2012):
* Fixed homebrew install URL
* changed from "#" to "$" to avoid confusion of running commands as root

EDITED (Feb 10, 2012):
* updated for new RVM
* source .bash_profile after editing it.
* decreased memory settings for mysql
* using ruby-1.9.3-p0
* fixed minor bugs

 Posted by at 2:06 am
Jan 012011

I had to setup AFP (netatalkd) on a centos 5.5 machine. Many tutorials had something missing. so I took the best of each and put here.ir-leasing.ru

You will need gcc and some packages/libs for building berk-db and netatalkd, like “patch” and “make”Дезинфекция

1. Download the latest berkeley-db 4.8 (5.0 and 5.1 did not work for me), compile and install

2. Download latest netatalkd, compile, install and copy config files to /etc/atalk
AFP works fine with the default configuration files.

When you mount this filesystem on mac, all files and directory permissions will be reset to 755, which is really annoying, specially if you use git. Git will show all the file permission changes to 755 instead of 644 for files.

so, to solve the problem edit the file /etc/atalk/AppleVolumes.default and update the last line on the file


 Posted by at 4:18 pm
Aug 192010

UPDATE: New version for OS X Lion HERE

I choose the simple and I believe clean way to use everything from macports and passenger.

The advantage is that it’s all isolated from the OS X system and using latest cutting edge version of softwares.

I assume you have textmate, because it’s easy to edit files that need sudo access. Textmate will just ask for your password.

Try and download the 30 days trial for easy of this tutorial. http://macromates.com/

Trust me, you will love Textmate, it’s state of the art editor.

ps: I use “mate” instead of “open -a TextMate” but not everyone might have the mate symlink.


  • Snow Leopard 10.6.4 or greater
  • Xcode 3.2.3, 2.4.1 or greater
  • Admin privileges on your mac.

Software preliminary:

  • Mysql 5.1.49 (macports)
  • Ruby 1.8.7 (macports)
  • Apache 2.2.9 (part of OS X)
  • Rubygems (download)
  • passenger (gem)
  • ImageMagick
  • rmagick

1. Preparing System

If you are upgrading from Leopard to Snow Leopard, I recommend you delet your old installation.

sudo rm -rf \
    /opt/local \
    /Applications/DarwinPorts \
    /Applications/MacPorts \
    /Library/LaunchDaemons/org.macports.* \
    /Library/Receipts/DarwinPorts*.pkg \
    /Library/Receipts/MacPorts*.pkg \
    /Library/StartupItems/DarwinPortsStartup \
    /Library/Tcl/darwinports1.0 \
    /Library/Tcl/macports1.0 \

1.1 Prepare PATH environment:

$ open -a TextMate ~/.bash_profile

Edit your ~/.bash_profile file and add these 2 line.
Check if they are not there already.

export PATH=/opt/local/bin:/opt/local/sbin:$PATH
export MANPATH=/opt/local/share/man:$MANPATH

1.2 Download and Install Xcode


1.3 Download Macports and install

Download Page: http://www.macports.org/install.php

Download Direct Link: http://distfiles.macports.org/MacPorts/MacPorts-1.9.2-10.6-SnowLeopard.dmg

You might use this guide for installing Macports:

Full Install Guide: http://guide.macports.org/#installing

1.3.1 Update macports

sudo port -v selfupdate

2. Mysql

2.1 Intall Mysql

sudo port -v install mysql5-server mysql5

2.2 Make mysql autoload on startup

sudo port load mysql5-server
sudo -u mysql mysql_install_db5

3. Memcached (Optional)

sudo port -v install memcached libmemcached

3.1 Autoload memcached on startup

sudo port load memcached

4. Ruby, Rubygems, Rails, other gems

4.1 Install Ruby from macports

sudo port -v install ruby
$ ruby -v
ruby 1.8.7 (2010-08-08 patchlevel 302) [x86_64-darwin10]

4.2 download rubygems from http://rubygems.org/pages/download

cd /tmp
wget http://production.cf.rubygems.org/rubygems/rubygems-1.3.7.tgz
tar xpf rubygems-1.3.7.tgz
cd rubygems-1.3.7
sudo ruby setup.rb

4.3 Install rails, rake, rspec etc.

sudo gem install rake rails thin tzinfo capistrano ruby-debug rspec


4.4 install mysql gem

sudo env ARCHFLAGS="-arch x86_64" gem install mysql -- --with-mysql-config=/opt/local/lib/mysql5/bin/mysql_config

5. ImageMagick, Rmagick and mini_magick (Optional)

lets install ImageMagick with support for JPEG, TIFF, WMF, PDF, and PNG images, and for Postscript and TrueType fonts.

sudo port -v install tiff -macosx imagemagick +q8 +gs +wmf
sudo gem install mini_magick rmagick

Test rmagick

$ irb -rubygems -r RMagick
>> puts Magick::Long_version
This is RMagick 2.13.1 ($Date: 2009/12/20 02:33:33 $) Copyright (C) 2009 by Timothy P. Hunter
Built with ImageMagick 6.6.3-0 2010-08-19 Q8 http://www.imagemagick.org
Built for ruby 1.8.7
Web page: http://rmagick.rubyforge.org
Email: rmagick@rubyforge.org
=> nil

6. Passenger

6.1 Install Passenger gem

sudo gem install passenger

6.2 Check Passenger path

passenger-config --root
 -> /opt/local/lib/ruby/gems/1.8/gems/passenger-2.2.15

6.3 Build passenger for apache

follow instructions on screen

sudo passenger-install-apache2-module

6.4 Enable Passenger on apache:

open -a TextMate /etc/apache2/extra/httpd-passenger.conf

Put this on that file, change wherever necessary for your directories.

LoadModule passenger_module /opt/local/lib/ruby/gems/1.8/gems/passenger-2.2.15/ext/apache2/mod_passenger.so
PassengerRoot /opt/local/lib/ruby/gems/1.8/gems/passenger-2.2.15
PassengerRuby /opt/local/bin/ruby
PassengerMaxPoolSize 6  # maximum global rails servers
PassengerMaxInstancesPerApp 2  # maximum rails servers per application
RailsFrameworkSpawnerIdleTime 1800
RailsAppSpawnerIdleTime 600
PassengerPoolIdleTime 600
PassengerMaxRequests 1000  # after 1000 requests will restart server, to skip memory leak :)

# Enabling NameBased Virtualhost
NameVirtualHost *:80

# my rails app virtual host 1

    ServerName my-rails-app.local
    DocumentRoot "/Users/fred/rails/my-rails-app/public" # change this to match your folder
    RailsEnv "development"
        # change this to match your folder
        # MultiViews must be turned off
        Options -MultiViews
        AllowOverride All
        Order allow,deny
        Allow from all
    # logs are optional, change this to match your folder
    CustomLog  "/Users/fred/rails/my-rails-app/log/access_log" combined
    ErrorLog   "/Users/fred/rails/my-rails-app/log/error_log"

# my rails app virtual host 2

    ServerName myapp-xyz.local
    DocumentRoot "/Users/fred/rails/myapp-xyz/public"  # change this to match your folder
    RailsEnv "development"
        # change this to match your folder
        # MultiViews must be turned off
        Options -MultiViews
        AllowOverride All
        Order allow,deny
        Allow from all
    CustomLog  "/Users/fred/rails/myapp-xyz/log/access_log" combined
    ErrorLog  "/Users/fred/rails/myapp-xyz/log/error_log"

6.5 Enable Virtual host on apache:

open -a TextMate /etc/apache2/httpd.conf

Add this new line at the bottom:

# Include Passenger ModRails config file
Include /private/etc/apache2/extra/httpd-passenger.conf

6.6 Add your .local domain to /etc/hosts/

open -a TextMate /etc/hosts

Add this line to that file and change to the name of your choosen application

You might add as many as you want, each line for each that ServerName on your VirtualHost blocks my-rails-app.local myapp-xyz .local

I have more than 50 .local apps in there.

5 Start Apache

first let’s test apache configuration:

apachectl configtest

if you get “Syntax OK” then you are ready to start it

sudo apachectl start

If you want Apache to autostart when you boot your computer,
then enable Web Sharing from preferences.

7. Final

go to your browser and open the url of your application http://my-rails-app.local

If it works, congratulations.

If didn’t work, let me know here in the comments.



  sudo port -v install libxml2 libxslt
  sudo gem install nokogiri -- --with-xml2-include=/opt/local/include/libxml2 --with-xml2-lib=/opt/local/lib --with-xslt-dir=/opt/local


sudo port install sqlite3
sudo gem install sqlite3-ruby

9. Sphinx, thinking-sphinx, sphinxsearchlogic

sudo port install sqlite3
sudo gem install thinking-sphinx sphinxsearchlogic


From the comments, some people might want to enable php and your Sites folder.

To be able to enable php and others you will have to enable another default vhost with localhost as servername.

Edit the file /etc/apache2/httpd.conf to enable vhosts

# Virtual hosts
Include /private/etc/apache2/extra/httpd-vhosts.conf

then open /private/etc/apache2/extra/httpd-vhosts.conf file,
delete or comment everything from there and add this block only:

# Use name-based virtual hosting.
NameVirtualHost *:80

# Change /Users/fred/ to your appropriate login name

    ServerName localhost
    DocumentRoot /Users/fred/Sites/
    RewriteEngine On
    DefaultType text/html
        DefaultType text/html
        Options +ExecCGI FollowSymLinks Indexes
        AllowOverride All
        Order allow,deny
        Allow from all

Links and Resources










 Posted by at 3:36 pm

Encrypted image that grows as needed, for linux backups

 osx  Comments Off on Encrypted image that grows as needed, for linux backups
Jul 242010

This command will create an encrypted image on mac OS X that will grow as you need it.
Since I could not find anywhere on the net, I dig on the hdiutil man page and wrapped the command. Ондатра

The image starts with about 600MB in size, which is not wasted actually.

I use this image to backup my sensitive data such as servers config files, mysql databases and repositories.
I set it to use AES 128bit encryption.
Case-sensitive, because Linux fs are Case-sensitive by default. If you don’t set it Case-sensitive you cannot use for linux backups.

hdiutil create -encryption AES-128 -stdinpass -fs “Case-sensitive HFS+” -type SPARSE -nospotlight -volname Servers Servers

it will create a file named Servers.sparseimage

 Posted by at 3:47 pm
Jun 142009

I have came across many projects where checking file uploads and content-type (mime-type) is poorly implemented or heavy in resource.veroxybd.com

Methods I have seen so far:inFOLIO Research Group

1. Checking content-type from file name: this inefficient, a user can just rename a file and you are fooled, or the file can have a different file format and you will not get the expected result.

2. Using Rmagick to check if the file is an image. This is so slow and uses so much Ram. You can try to initialize an rmagick object from an image file, then rescue when the file is not an image.

3. Using mini_magick to check if a file. This method is faster than rmagick. Implemen ted same way as rmagick.

A Better method for OSX and Linux,  is to use the command line tool “file” included in most UNIX operating systems.

It is very fast and very accurate.

Some examples of content types:

.doc = Microsoft Word document data

.doc = Microsoft Office Document

.pdf = PDF document, version 1.4

.pdf = PDF document, version 1.3

.psd = Adobe Photoshop Image

.png = PNG image data, 3508 x 4961, 8-bit/color RGBA, non-interlaced

.gif = GIF image data, version 89a, 195 x 109

.jpg = JPEG image data, EXIF standard


I hope this can be useful to someone.

Easy installing Nginx + mod_rails passenger OSX

 nginx, osx  Comments Off on Easy installing Nginx + mod_rails passenger OSX
Jun 142009

Requirements:Балки обвязочные

1. XCODE you can download xcode from http://developer.apple.com/tools/xcode/index.html

2. OSX 10.4, 10.5 or 10.6


1. Install Passenger

$ sudo gem install passenger

now check where is passenger installed:

in my case is: /opt/local/lib/ruby/gems/1.8/gems/passenger-2.2.5

2. Install nginx

If you have nginx from macports, deactivate it in case of conflicts.

You can activate anytime later

$ sudo port deactivate nginx

$ wget http://sysoev.ru/nginx/nginx-0.7.59.tar.gz

$ wget http://sysoev.ru/nginx/nginx-0.7.62.tar.gz

$ tar xpf nginx-0.7.62.tar.gz

$ cd nginx-0.7.62

I Recommend using nginx 0.6 series because I had a lot of “502 Bad Gateway” with 0.7 series.

$ wget http://sysoev.ru/nginx/nginx-0.6.37.tar.gz

$ tar xpf nginx-0.6.37.tar.gz

$ cd nginx-0.6.37

$ sudo make

$ sudo make install

$ cd /opt/local/conf

$ sudo cp mime.types.default mime.types

$ sudo cp nginx.conf.default nginx.conf

Edit nginx.conf

$ mate nginx.conf


$ sudo vi nginx.conf

Now edit your /etc/hosts and add the hosts for your local project

$ mate /etc/hosts

3. Start nginx

sudo nginx

4. go to your browser and open project1.local


5. Easy start/restart/stop

add this to your ~/.bash_profile file


1. Nginx is not running

– check the logs

– check if it is really not running:

$ ps aux | grep nginx

2. you see the nginx error “502 Bad Gateway”

– may there is a problem with the /var/folders/ permissions on OSX:

to fix it I did this:

$ sudo find /var/folders/xl/ -name “master” -exec chmod 755 {} \;

$ sudo find /var/folders/xl/ -name “-Tmp-” -exec chmod 755 {} \;

everytime I reboot my mac I had to do that… I still dont know how to fix it…

anybody knows?

That is it for now.

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