Tech Info - Upgrading Firmware on Firewalls via CLI

Saravanan

Most of us stick to the firmware upgrade process through GUI access and very few of us carry out the firmware upgrade via CLI access. IT professionals who manage hundreds of SonicWall firewalls may find this information useful. Also, when the firewall access is lost via web because of various reasons such as lost access after changing the web management to custom port(s), browsers errors related to SSL ciphers, etc,.,

To enact the firmware upgrade via CLI,

1. The users should have access to the FTP Server reachable from the firewall.
2. SSH management must be enabled on the firewall interface used for managing it.

Below KB article details the firmware upgrade activity.

https://www.sonicwall.com/ko-kr/support/knowledge-base/how-to-update-firmware-via-cli/190926220440847/

This process can be followed on all models of SonicWall firewalls including the Virtual firewall models.

Have a better one!!!

Nevyaditha

@Saravanan1990_V This is really great info !!