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Status Not under consideration
Workspace SevOne
Categories Network Management System (NMS)
Created by Guest
Created on Nov 1, 2024

RELATED IDEAS

IBM SevOne NMS upgrades should allow for limit or throttling of ssh connections

During a production upgrade for IBM SevOne NMS, a Palo Alto Networks firewall adaptive security policy automatically blocked traffic between IBM SevOne NPM peers due to excessive network traffic on TCP port 22. SevOne NPM uses Ansible to perform cluster upgrades, which uses ssh very frequently. We worked together to find a workaround, but in the future, it was requested to use Ansible forks or throttling to prevent outages.

Idea priority Low
  • Admin
    Ryan Wilson
    Reply
    |     Nov 1, 2024

    Kevin, I'm skeptical about taking this on at the PM level for a few reasons:

    • Upgrades after 7.0 may require less overall SSH activity and not trigger blockage by the firewall. At the very least, this is something that Support could look into.

    • This customer set a SSH firewall policy on a product that's heavily dependent on SSH. While we have no documentation on required connections-per-second, 100 SSH calls per 10 seconds seems awfully low considering the product architecture. Requesting a maintenance window in which the firewall rules are modified for an upgrade seems far more cost effective than HSA rebuilds.

    • You'll get a much faster turnaround by taking this through support escalations as a design defect or bug, as this is something blocking a customer upgrade.

    1 reply

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