XCO Upgrade Prerequisites

Prerequisites for XCO upgrade process with the default gateway changed:

  1. Ensure that no DNS configuration exists under TPVM config and resolv.conf.
  2. Presence of management connectivity from SLX and TPVM to external build server image, wherein image is available during SLX and TPVM upgrade process.
If file/etc/sshd/sshd_config is modified to non-default values, then manually readjust the following parameters:
  • MaxStartups 30:30:100
  • MaxAuthTries 6
  • LoginGraceTime 120


The hardening script, extr-granite.py bundled with EFA 2.6.1 will not automatically modify the above mentioned parameters.