Web Server Installation on CentOS 6¶

Before you start, make sure you have CentOS 6 installed on your computer. Note that upgrading from CentOS 5 to CentOS 6 might damage existing filesystems and operating systems as described in CentOS Migration Guide. That's why we recommend starting with a fresh install of CentOS 6. The following links provide excellent step by step guide on how to install CentOS 6 Linux from scratch on a new machine:

• http://linuxmoz.com/how-to-install-centos-6-linux-for-servers-desktops
• http://www.if-not-true-then-false.com/2011/centos-6-netinstall-network-installation

In the package selection step switch from Minimal to Web Server.

Disable SELinux and Firewall¶

To disable SELinux:

1. Edit file "/etc/selinux/config"
2. Change "SELINUX=enforcing" to "SELINUX=disabled"
3. Save the file
4. Restart your computer

To disable firewall run system-config-firewall-tui command and use Space key to unchecked the checkbox next to Enabled.

Install Extra Packages for Enterprise Linux (EPEL)¶

rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm

Note that release version (6-8) is the current release at the time of this writing. Please visit http://fedoraproject.org/wiki/EPEL/FAQ#How_can_I_install_the_packages_from_the_EPEL_software_repository.3F for more up-to-date information on how to install the packages from the EPEL software repository.

yum install php-gd gcc libssh2-devel php-pecl-ssh2 mod_ssl php-mysql php-devel php fftw3-devel python-imaging python-devel mod_python scipy svn
easy_install fs PyFFTW3

Configure php.ini¶

Edit /etc/php.ini and change line ~229 to

short_open_tag = On

Note that short_open_tag appears twice in /etc/php.ini and you need to set short_open_tag = On at around line 229 for it to take effect.

Start Apache HTTP Server¶

service httpd start
chkconfig httpd on

See also: How to start Apache at Startup on Centos or Red Hat Enterprise Linux using chkconfig.

If you have a file server that stores Appion and Leginon session, start and enable nfs services as well:

service nfs start
chkconfig nfs on

See How to Set Up an NFS Mount on CentOS 6

Download Appion and Leginon Files¶

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Install Redux image server¶

cd myami
./pysetup.sh install
mkdir /etc/myami
cp redux/redux.cfg.template /etc/myami/redux.cfg
/etc/init.d/reduxd start

Install the Web Interface¶

cp -r myamiweb/ /var/www/html/ 

Visit http://localhost/myamiweb/setup and follow instructions in Web Tools Setup Wizard.

See also Install the Web Interface Advanced.