There are numerous reasons it is beneficial to have your own gem server including controlling the versions of various gems deployed to all of your servers. Below is a brief explanation of how to install a gem server on your local network.

1. Install Web Server: If you do not already have a web server installed then install LiteSpeed or Apache

A. Install Apache:
[root@server ~]#yum install httpd

B. Modify Config: If you have a domain you want to use then:
[root@server ~]#vi /etc/httpd/conf/httpd.conf

i. Turn on NameVirtualHost:
[root@server ~]#NameVirtualHost *:80

ii. Edit Virtual Host Settings: Modify your virtual host something like the below:
[root@server ~]#VirtualHost
ServerAdmin you@example.com
DocumentRoot /var/www/html/rubygems
ServerName gems.example.com
ErrorLog logs/gems.example.com-error_log
CustomLog logs/gems.example.com-access_log common
VirtualHost

C. Make Gem Server Root and Gems Directory:
[root@server ~]#mkdir /var/www/html/rubygemsmkdir
mkdir /var/www/html/rubygems/gems

D. Make Apache start on server reboot:
[root@server ~]#chkconfig httpd on

E. Start Apache:
[root@server ~]#/etc/init.d/httpd start

2. Install Ruby:
A. Get the latest version of Ruby from here.
B. Download to your server:
[root@server ~]#cd /usr/local/src
wget http://link-to-your-ruby-package

C. Unpack the ruby source:
[root@server ~]#tar -zxvf ruby-1.8.6-p286.tar.gz

D. Configure, Make, and Install:
[root@server ~]#cd /usr/local/src/ruby-1.8.6-p286
/configure –prefix=/usr/local
make
make install

3. Install RubyGems:
A. Get the latest version of rubygems from here.
B. Download to your server:
[root@server ~]#cd /usr/local/src
wget http://link-to-rubygems-package

C. Unpack the rubygems source:
[root@server ~]#tar -zxvf rubygems-1.2.0.tgz

D. Configure and Install:
[root@server ~]#cd /usr/local/src/rubygems-1.2.0
ruby setup.rbv

4. Make Gems Available: Install any gems you want to provide to your other servers and then put them in the correct directory
A. Install Gems:
[root@server ~]#gem install ar_mailer

B. See Gems:
[root@server ~]#gem list

C. Make Gems Available: Copy your .gem files into your servers new gem direcotry:
[root@server ~]#cp -p ar_mailer.gem /var/www/html/rubygems/gems

D. Prepare Gem Server:
[root@server ~]#gem generate_index -d /var/www/html/rubygems

5. Point Servers To New Gem Server:

**Note: If you don’t already have rubygems 1.2.0 or greater installed on your client server then upgrade following step A if not skip to step B.

A. Update rubygems:
[root@server ~]#gem update –system

B. List Current Gem Sources:
[root@server ~]#gem sources –list

C. Add Your Gem Server:
[root@server ~]#gem sources –add http://gems.example.com/

D. Remove Other Sources:
[root@server ~]#gem sources –remove http://gems.rubyforge.org/

**Note** Make sure to have the trailing “/” on the end of the http://gems.rubyforge.org/ or it will not be removed.
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