Upgrading the firmware on a standalone Fortigate unit or units in an HA cluster
Understanding upgrade paths: Each firmware version has an upgrade path requirement from older versions. Most of the time when you are in a MR (major release) patch level, you can upgrade straight to any patch level within the MR. ex: 1) currently, a fortigate unit is running 4.0 MR3 patch 3. 2) You wish to upgrade it to 4.0 MR3 patch 11. 3) You can simply upgrade it directly to 4.0 MR3 patch 11. Most of the time when you are upgrading from a MR to the next MR, you can upgrade straight to any patch level in the next MR as long as you are at the highest patch level in the lower/previous MR. ex: 1) currently, a fortigate unit is running 4.0 MR2 patch 3. 2) You wish to upgrade it to 4.0 MR3 patch 11. 3) You must first upgrade it to 4.0 MR2 patch 13 (highest 4.0 MR2 patch). 4) Then you can upgrade to 4.0 MR3 patch 11. You should ALWAYS refer to the release notes of the firmware release you wish to upgrade your unit. Even, for comfort, just open a ticket...
I loved the way you organized your points and how you explained PCI DSS Framework through Mindmap. It is so easy to understand. Thank you for taking the time to write that article! Read More on SD-WAN and How Banking & Financial sector uses SDWAN and Cyber Hygiene for Startups
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