Maintenance Notification – Monday, 11 July 2011

Execution Timeframe and Participants

This maintenance is scheduled to be executed on 11 July 2011 between 7pm and 3am CEST. For cross-time zone customers this is between 5pm and 1am UTC (GMT/Zulu)

During the maintenance window and until 9am the Cloud Technologies main number +32 (0)2 669 05 00 will be rerouted to the 24/7 Network Operations Center, resulting in direct communication with our senior engineers.

Distribution and Partner channels must communicate with the Thinfactory and CloudPlaza Customer Care Center at +32 (0)2 720 58 44 and refer to this maintenance ticket: #12075.

Participants in this migration will be the Senior Network Engineers supervised by our Network Operations Manager.


The cNetCloud, cNetDirect, cNetExplore and cNetClic services, which run on top of the Cloud Technologies active L3 network, are experiencing an advanced FTP inspection problem classified with Juniper Networks as PR661178.

Under some very rare circumstances the closing parenthesis is missing in the 227 FTP protocol reply during NAT translation and ALG inspection. This breaks a wide variety of FTP clients and is against RFC959.

During the past six months Cloud Technologies, Juniper Networks and our Juniper Partner have extensively analyzed and debugged this case and we are pleased to announce a remedy for this inconvenience.

Juniper Networks has tested and released a development build based on 11.1 which includes the remedy for PR661178.

In the event that Juniper Networks releases a mainstream version which includes this remedy, the scheduled maintenance will be performed with the mainstream version rather than the custom development build.

Detailed Information

Cloud Technologies maintains an open technical communication policy towards our distribution and partner channels. Any and all information regarding this maintenance may be found in the maintenance notification 20110711-001-MNT document.

Our engineers will closely monitor the work and will do everything possible to minimize any inconvenience to you. If you have any problems after the maintenance window, or if you have any questions regarding the maintenance at any point, please contact us.

While it is important for Cloud Technologies, Thinfactory and CloudPlaza to perform maintenance such as this to ensure the quality of our services, we do everything possible to minimize any inconvenience to our customers. We appreciate your patience and welcome any feedback.

Leave a Reply