Server and System Status

Connectivity issue at London data centre

27 December 2015 06:52:18 +0000

The London data centre has been suffering from the effects of a couple of denial of service (DoS) attacks over the last 12 or so hours. The attack late yesterday (26 December) lasted about an hour and a half. Today’s attack started at 05:37 UTC and is currently ongoing. The data centre staff assure us that they have identified the problem and are implementing a fix for it.

This affects server NC023 (the relay server) and server NC027 (the main mail server), as well as virtual private servers hosted in London. As far as we know, the servers themselves are up and connected to the network, but the attack is causing them to be inaccessible.

We’ll update here as soon as we know more.

Tags: connection issues, dos attack, email delivery, mail relay
Categories: Email, Incidents, NC023, NC027
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NC020: Earlier server reboot

21 November 2015 02:16:43 +0000

We have determined from monitoring logs that server NC020 was only offline for a few minutes, and was rebooted at 09:46 UTC on 20 November within a few minutes of the problem being discovered.

We apologise to those few clients still using server NC020 who may have been inconvenienced at that time.

If you have any questions about this, please let us know. Thanks.

Tags: connection issues, down time, reboot, web server
Categories: Incidents, NC020
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NC020: Server rebooted

20 November 2015 10:07:39 +0000

We have rebooted server NC020 after it was overwhelmed. We’re looking into it right now and will post details here as soon as we have them.

Tags: connection issues, down time, reboot, web server
Categories: Incidents, NC020
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NC027: Mail server queue clearing

2 November 2015 10:05:03 +0000

A configuration change on server NC027 (the mail server) over the weekend to once again introduce virus scanning has, as on previous occasions, overloaded the server. We made this change over the weekend after earlier doubling the capacity of the server and making other changes recently that should have seen a significant increase in server performance. Indeed, testing over the weekend showed a significant improvement over previous attempts to introduce virus scanning.

The result of this is that incoming emails have been delayed this morning, including messages between accounts on the same server. Therefore we have again reversed this configuration change and the mail queue has begun clearing. We hope that it will be clear within the next hour.

We apologise for this inconvenience.

Tags: email delivery, performance
Categories: Incidents, NC027
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NC023: Maintenance complete

1 November 2015 03:34:56 +0000

The upgrades to server NC023 completed at 03:22 UTC. We will run some tests to ensure that everything is fine.

If you have any issues with server NC023, please let us know. Thank-you.

Tags: down time, mail relay, reboot
Categories: Maintenance, NC023
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NC023: Maintenance underway

1 November 2015 02:21:27 +0000

Server NC023 went down for maintenance at 02:20 UTC. The server may be up and down a few times over the next hour.

Tags: down time, mail relay, reboot
Categories: Maintenance, NC023
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NC023: Server maintenance

1 November 2015 02:03:11 +0000

Server NC023 will be going down within the next hour for up to an hour for some operating system upgrades and disk management. We’ll post updates here as necessary, but we don’t expect that this will affect many clients.

Tags: down time, mail relay, reboot
Categories: Maintenance, NC023
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NC026: Emergency maintenance complete

24 October 2015 08:21:46 +0000

The emergency maintenance on server NC026 started at 07:30 UTC and was completed successfully by 08:09 UTC. The server is now back online and functioning normally.

Thank-you for your understanding and patience.

Tags: down time, reboot, web server
Categories: Maintenance, NC026
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NC026: Emergency maintenance underway

24 October 2015 07:33:35 +0000

Server NC026 was taken down at 07:30 UTC for the previously mentioned emergency maintenance. We’ll post an update here when it’s back online.

Tags: down time, reboot, web server
Categories: Maintenance, NC026
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NC026: Emergency maintenance

23 October 2015 00:06:01 +0000

For the same reason as that for the emergency maintenance of servers NC023 and NC027, server NC026 will also undergo the same maintenance starting at 04:00 UTC on Saturday 24 October 2015.

During the six-hour window between 04:00 and 10:00 the server should be down for only up to two hours, but quite possibly less than that.

Server NC026 is a newer web server hosting only a relatively small number of websites, mostly those based on WordPress. We’ll be sending emails out to those clients who will be affected.

If you have any questions or concerns, please let us know. Thanks for your patience and understanding.

Tags: down time, reboot, web server
Categories: Maintenance, NC026
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System	Status	Ping
NC023	Internal	Up?
NC028	Internal	Up?
NC031	Internal	Up?
NC033	Operational	Up?
NC034	Internal	Up?
NC035	Operational	Up?
NC036	Shut down	Up?
NC040	Internal	Up?
NC041	Operational	Up?
NC042	Operational	Up?