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Security Update: WannaCry ransomware

Hi ~okeanos users,

There is a rather dangerous ransomware, the WannaCry / Wcry / WannaCrypt ransomware, that has been spreading since Friday, May 12. The ransomware takes advantage of the MS17-010 vulnerability that affects Microsoft Operating Systems.

In order to protect the virtual machines from exposure to the WannaCry / Wcry / WannaCrypt ransomware, all incoming TCP traffic to ports 137-139 & 445 has been blocked.

The aforementioned firewall rules were applied to partially prevent the ransomware from spreading. Therefore, we urge you to perform all the necessary updates on your Windows virtual machines.

For a more thorough explanation on this subject, we suggest you read the following blog posts:

  • http://blog.talosintelligence.com/2017/05/wannacry.html
  • https://www.troyhunt.com/everything-you-need-to-know-about-the-wannacrypt-ransomware/
  • https://blogs.technet.microsoft.com/msrc/2017/05/12/customer-guidance-for-wannacrypt-attacks/
  • Stay safe,
    the ~okeanos team

    Security Update: WannaCry ransomware

    Hi ~okeanos users,

    There is a rather dangerous ransomware, the WannaCry / Wcry / WannaCrypt ransomware, that has been spreading since Friday, May 12. The ransomware takes advantage of the MS17-010 vulnerability that affects Microsoft Operating Systems.

    In order to protect the virtual machines from exposure to the WannaCry / Wcry / WannaCrypt ransomware, all incoming TCP traffic to ports 137-139 & 445 has been blocked.

    The aforementioned firewall rules were applied to partially prevent the ransomware from spreading. Therefore, we urge you to perform all the necessary updates on your Windows virtual machines.

    For a more thorough explanation on this subject, we suggest you read the following blog posts:

  • http://blog.talosintelligence.com/2017/05/wannacry.html
  • https://www.troyhunt.com/everything-you-need-to-know-about-the-wannacrypt-ransomware/
  • https://blogs.technet.microsoft.com/msrc/2017/05/12/customer-guidance-for-wannacrypt-attacks/
  • Stay safe,
    the ~okeanos team

    Important upgrade on ~okeanos service

    Hello ~okeanos users,

    We are happy to announce that on Tuesday, May 23 between 09:00 and 13:00 EEST we will be doing a major upgrade on the ~okeanos service, with a new version of the Synnefo software and a new version of the operating system for its infrastructure.

    During the upgrade, all running Cyclades VMs will be temporarily shut down and automatically restarted afterwards. The Cyclades and Pithos Web UI and APIs will also be inaccessible in the above timeframe.

    Thanks for your understanding,
    The ~okeanos team

    Important upgrade on ~okeanos service

    Hello ~okeanos users,

    We are happy to announce that on Tuesday, May 23 between 09:00 and 13:00 EEST we will be doing a major upgrade on the ~okeanos service, with a new version of the Synnefo software and a new version of the operating system for its infrastructure.

    During the upgrade, all running Cyclades VMs will be temporarily shut down and automatically restarted afterwards. The Cyclades and Pithos Web UI and APIs will also be inaccessible in the above timeframe.

    Thanks for your understanding,
    The ~okeanos team

    It’s the most wonderful time of the year!

    Christmas holidays are upon us and we come bearing gifts!

    More resources to more users for more time!

    We are happy to announce that the more.cyclades.users project has just got renewed for 1 more year.

    Hold on, there is more...

    We have 500 more resource packs on our Christmas boat!
    Ιf you are a user with no compute resources, hurry up and join the more.cyclades.users project now!

    Have a jolly Christmas,
    the ~okeanos team

    It’s the most wonderful time of the year!

    Christmas holidays are upon us and we come bearing gifts!

    More resources to more users for more time!

    We are happy to announce that the more.cyclades.users project has just got renewed for 1 more year.

    Hold on, there is more...

    We have 500 more resource packs on our Christmas boat!
    Ιf you are a user with no compute resources, hurry up and join the more.cyclades.users project now!

    Have a jolly Christmas,
    the ~okeanos team

    Surviving a RADOS outage

    Hi ~okeanos users,

    Recently ~okeanos service faced some disruptions, as we informed you on a previous blog post. Let's shed some light on what caused them.

    The ~okeanos storage backend (Archipelago) is backed by Ceph, an open-source distributed software-defined storage solution. On Friday, September 9, at 9 p.m., Object Storage Daemons (OSDs) of the RADOS cluster became unstable resulting in the cluster erroneously marking OSDs as down. This incident led to I/O freeze and cluster malfunctioning. In order to ensure data integrity, we had to resort to special handling and tooling and managed to make the cluster fully functional again on Tuesday, September 13.

    If you are interested in more technical details, you may find an analysis of the incident, described by our NOC team, in this blog post.

    We would like to thank you for your support on handling this unexpected outage. The lessons learned from this incident will be used to better tune and monitor the service, which will help towards our commitment for high levels of service availability.

    the ~okeanos team

    Surviving a RADOS outage

    Hi ~okeanos users,

    Recently ~okeanos service faced some disruptions, as we informed you on a previous blog post. Let's shed some light on what caused them.

    The ~okeanos storage backend (Archipelago) is backed by Ceph, an open-source distributed software-defined storage solution. On Friday, September 9, at 9 p.m., Object Storage Daemons (OSDs) of the RADOS cluster became unstable resulting in the cluster erroneously marking OSDs as down. This incident led to I/O freeze and cluster malfunctioning. In order to ensure data integrity, we had to resort to special handling and tooling and managed to make the cluster fully functional again on Tuesday, September 13.

    If you are interested in more technical details, you may find an analysis of the incident, described by our NOC team, in this blog post.

    We would like to thank you for your support on handling this unexpected outage. The lessons learned from this incident will be used to better tune and monitor the service, which will help towards our commitment for high levels of service availability.

    the ~okeanos team

    Scheduled maintenance/upgrade operation

    UPDATE: All works completed successfully

    We'd like to inform you about scheduled maintenance/upgrade for ~okeanos service between 09:00 EET and 11:00 EET on Wednesday, October 19.

    Your VMs and Pithos+ files should remain unaffected. Maintenance is expected to cause minor disruptions to the ~okeanos service. Astakos, Cyclades and Pithos+ Web UIs and their APIs will be unavailable for a short time during the upgrade.

    No loss of connectivity is expected for the VMs.

    Thanks for your understanding,
    the ~okeanos team

    Scheduled maintenance/upgrade operation

    We'd like to inform you about scheduled maintenance/upgrade for ~okeanos service between 09:00 EET and 11:00 EET on Wednesday, October 19.

    Your VMs and Pithos+ files should remain unaffected. Maintenance is expected to cause minor disruptions to the ~okeanos service. Astakos, Cyclades and Pithos+ Web UIs and their APIs will be unavailable for a short time during the upgrade.

    No loss of connectivity is expected for the VMs.

    Thanks for your understanding,
    the ~okeanos team