Prior to version 4.8.0, clustering required a load balancing configuration called "Direct Routing (LVS-DR)". As of 4.8.0, when adding a cluster node, you can now choose between Direct Routing and Tunneling (LVS-TUN) for the load balancing configuration. The addition of support for Tunneling based load balancing allows more advanced cluster configurations, including building clusters on cloud provider networks. With Tunneling, it is no longer required for the cluster manager and the cluster node servers to be on the same network segment for load balancing purposes.
It used to be difficult to remove a cluster node from a cluster if that node could not be brought offline for the removal from the cluster. It is now possible to cleanly and easily remove a "downed" cluster node from a cluster permanently.
It is no longer necessary to manually set the php-mode for each cluster node added to the cluster, will now correctly inherit the php-mode from the cluster manager.
When new nodes are added to an existing cluster, the new node is no longer automatically added to existing load balancing policies.
The start/stop of the cluster command queue when a cluster node is added/removed is now consistent and stable.
It is no longer necessary to manually add custom themes on newly installed cluster nodes, as will add them from the cluster manager automatically.
Any failures during cluster activation are now more clearly communicated to the user via the interface.
Nodes added to an existing cluster now have all domains' mail configurations correctly synchronized on the new node.
Fixed a problem deleting accounts with corrupt or missing domain names, on cluster nodes.
Improved Form and Payload (Data Lists) System
*Significant work has gone into the core Form and Payload (lists of data) system.**
Lists of data (for example, lists of e-mail boxes, or users, or accounts, etc) are now using a new powerful new system that provides a consistent and powerful way to view and manage information handled by:
Data is easily sortable.
Data is easily pageable.
Data is refreshed automatically without requiring page loads, speeding up the user experience considerably.
All lists of data are now available via the already vast API, that includes XMLRPC, SOAP, and CLI support.
Support for "bulk actions" on lists of data has been added throughout the system.
Major improvements to the DNS Record interfaces in and
Advanced new forms for adding and editing different DNS record types, including AAAA, NAPTR, SRV, and SPF records.
NS records can now easily be added for subdomains on parent zones.
Added the ability to optionally change the DNS SOA serial number to "BIND style" format under →Dns Overview.
Webserver "Default Sites" Configuration
Using the new IP Management→Default Sites section added to, it is simple to choose where the browser is redirected to if a website is accessed via the IP address only, and not via domain name.
Siteworx Backup System Improvements
Scheduled backups made in will now rotate the backups after a configurable number of backups to save disk space.
Scheduled backups now run as the new iworx-backup user rather than the iworx user.
Running backups will now do a better job of checking if they have enough space to complete.
Lots of usability improvements for tablet and phone browsers.
~iworx/bin/domain-promoter.pex can now be used to take a master domain, and have it "swap roles" with a pointer domain that is pointing to it. For example, if there is a account with domain name "mydomain.com" with a pointer domain called "mydomain.net", then the domain promoter script will make "mydomain.net" the master domain, and "mydomain.com" the pointer domain.
It is now possible to view who is configured to receive system health status alerts via the CLI.
Added a customer contributed bash script that will clean up old unusable user stats files that waste disk space: ~iworx/contrib/awclean.sh
New Session History plugin allows tracking of changes made via (See: ?Plugins: Session History, to enable the plugin).
Disabled accounts can no longer FTP and send e-mail, in addition to the website being disabled.
Added a "Send test mail" feature on the mail queue page, and added a "time in queue" display for each message in the mail queue.
New bash completion script for use with the CLI: ~iworx/contrib/iworx-completion.sh (BETA). To use it, as root, run: source ~iworx/contrib/iworx-completion.sh, then type "nodeworx -u " and repeatedly hit "tab".
Improvements to the yum update interface, including viewing a single package's update history and the ability to install individual updates via (as opposed to all pending)
Performance log added track edge cases of performance degradation.
Siteworx based "system health" notification e-mails will now come from the reseller-owner of the account in question rather than the default server admin.
Improved the speed of logging into phpMyAdmin.
Forms organized into groups are now collapsible by group.
Lists organized into groups are now collapsible by group.
Added Cross Site Script Forgery protection on all forms.
Non-root CLI ssh users can not specify a secondary domain for the --login_domain parameter when using the /usr/bin/Siteworx command.
Importing accounts no longer requires that the local MySQL server be running, if that server is not needed for the import to complete.
It is no longer required for the webserver to be running when adding a or importing a account, if the webserver is already down when the account is added, and the webserver is not set to start on boot on the server..
The iworx init script could sometimes fail to completely shutdown the iworx-db processes. Extra steps have been added to prevent this condition.
Various tweaks and fixes to control panel importers.
Fixed a link to the bandwidth graph in the "big menu" style.
Fixed setting of untrusted and trusted interfaces on the firewall page.
Directories named 'var' now show up in the FTP home directory chooser, as expected.
Directories in the FTP home directory chooser are now sorted in a more user friendly manner.
Fixed the start/restart/stop controls for the IMAP-SSL and POP3-SSL servers.
Structure-only backups would not complete if MySQL was not running - this is no longer the case.
Fixed a problem editing cron jobs via when certain languages were in use.
Fixed problems related to importing accounts into reseller accounts as the master user.
Siteworx accounts on dedicated IPs, with SSL enabled, could not be moved to a different reseller account, due to IP assignment restrictions. This no longer the case - if a account moves from one reseller to another, the dedicated IP ownership moves with it.
Fixed a problem with the htaccess interface setting a default character set.
Configuration file editors would sometimes fail to validate due to TABs or other such characters, this is now fixed.
Fixed a problem setting e-mail vacation mode via horde, if the user logged in using a pointer domain for the e-mail address.
Fixed downloading of large Apache error logs via .
Now possible to delete a permanently offline external MySQL server.