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Status Future consideration
Workspace MQ on IBM Cloud (SaaS)
Created by Guest
Created on Oct 20, 2023

RELATED IDEAS

/etc/hosts function in the MQ on Cloud offering

In some configurations, particularly when using MQ clusters, Queue Managers may need a DNS-type service to function.

This is the case, for example, when a partial repository is located outside a private network, and has no access to the corporate DNS service. The easy and practical solution in this case is to use the /etc/hosts file, and enter the correspondence between the hostnames to be reached and their IP addresses.


IBM's MQ on Cloud offering has a number of limitations (not always well detailed) that can generally be overcome.

One such limitation is the lack of access to the /etc/hosts file, as MQ on Cloud is container-based. It is possible to activate a DNS service on MQ Cloud, but the corresponding pricing disqualifies the MQonCloud offer.


This limitation prevents the integration of a Partial Repository located on MQ on Cloud with an MQ cluster located on a private network.


To solve this problem, IBM needs to provide MQ on Cloud with a function providing the same services as the /etc/hosts file.


Idea priority Urgent
  • Admin
    Marcus Kaye
    Reply
    |     Feb 28, 2024

    Marcus and Phil spoke to Luc-Michel Demey - the issue here is for MQoC to map a private hostname to a public IP address.

    This means that MQoC will need to add functionality to support private DNS hostname resolution.

    Next steps: MQoC team will size this work.

  • Admin
    Marcus Kaye
    Reply
    |     Feb 20, 2024

    The etc/hosts/ file is not able to be edited directly in a SaaS service so is not applicable here. However allowing customer to edit files within the OS like that in a SaaS service would be a security risk in a public cloud environment.


    There are alternatives provided by IBM Cloud - public DNS is supported by IBM Cloud VPE which is now supported in the Reserved Instance MQ on Cloud plan.

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