Elements Locators in Selenium Ruby webdriver

        :class             => ‘class name’,

        :class_name        => ‘class name’,

        :css               => ‘css selector’,

        :id                => ‘id’,

        :link              => ‘link text’,

        :link_text         => ‘link text’,

        :name              => ‘name’,

        :partial_link_text => ‘partial link text’,

        :tag_name          => ‘tag name’,

        :xpath             => ‘xpath’

Disable Firewall CentOS / RHEL / RedHat

First login as the root user.

Next enter the following three commands to disable firewall.
# service iptables save
# service iptables stop
# chkconfig iptables off

If you are using IPv6 firewall, enter:
# service ip6tables save
# service ip6tables stop
# chkconfig ip6tables off