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| IP Addresses and the IP Manager |
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Last Updated
11th of August, 2010
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A standard Stackable account will use multiple ip addresses. This article will explain how these addresses are used and how the IP Manager can help you keep track of them.
Table of Contents
IP Addresses and Stackable
A basic Stackable account with one container and one site (non-SSL) will have two unique IPs. One IP points to the container and the other points to the load balancer which directs traffic for the site. All SSH and SFTP access will go to the container IP address. All DNS requests for the site should go to the load balancer IP address.
A basic stackable account will also have a few non-unique IP
addresses. These IP
addresses are used for site environments. Each environment for a site will get a different IP
address on the load balancer. Currently, 5 IP
addresses are available on the load balancer for each, therefore each site can have no more than 5 environments. DNS can be pointed to the site environment IP address for development purposes.
Every Stackable account has access to the IP Manager, which displays all of the IP addresses used by an account in the control panel.
Accessing the IP Manager
The IP Manager is a tool which makes it easy to find which IP address should be used for what purpose and to check for DNS errors. To access the IP Manager,
mouse over 'MORE TOOLS' and click on 'IP MANAGER:
Errors
The IP Manager first shows a user what sites are not resolving to the correct IP address and which IP
address it should be resolving to. This screenshot below shows two of the main errors a user will see:
The first error, 'No such hostname' means that DNS has not yet been configured for that domain. See Stackable and DNS for more information on configuring DNS for a site.
The other error says that DNS is resolving to the wrong IP address. To fix this, simply change DNS so that the site goes to the IP address listed in the 'IP Address' column.
Site IPS
The Site IPS section shows: all of the sites on an account, what IP address DNS should be going to, their Stackable hostname, whether or not SSL has been enabled for the site and the status of the site.
Site IPS for SSL
This section shows any extra IP addresses you have purchased to use SSL (which requires a dedicated IP address).
Environment IPS
Environment IPS shows a list of IP addresses associated with each environment. These IP addresses can be helpful for development. For example, a developer wants to point the local DNS to the development environment while working on the site but not change the actual DNS for the site. This can be done by changing the hosts file (/etc/hosts in Linux) on a computer to point requests for that site to the address of the environment.
Container IP
S
The final section shows the IP addresses and hostnames associated with any containers on the account. The IP address or hostname should be used when accessing the container via SSH or SFTP.
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