Fortigate vDOM backup failing

[LoveSkylark]

I'm attempting to back up my FortiGate Firewalls, but I'm encountering the following error:

│ W, [2024-07-05T11:01:20.253418 https://github.com/ytti/oxidized/issues/33] WARN -- : x.x.x.x raised Timeout::Error with msg "execution expired"`

I can successfully back up over 100 other devices from various vendors. The configuration is large, and it takes a few minutes to scroll through the CLI when I run show | grep . manually. I've seen previous discussions about similar issues and have tried those solutions.

Adjusting the timeout doesn't seem to help—it just prolongs the failure.

When using diagnostics on the FortiGate, I notice that the process stalls after entering config global:

SSH: lastlog_openseek: Couldn't stat /var/log/lastlog: No such file or directory
cmd=config global
end

SSH: channel 0: rcvd adjust 131072
SSH: channel 0: request [email protected] confirm 1
SSH: channel 0: rcvd adjust 131072
SSH: channel 0: rcvd adjust 131072
SSH: channel 0: rcvd adjust 131072
SSH: channel 0: rcvd adjust 131072

So it looks like the FortiGate is not even getting a request for 'show | grep .'

Increasing the timeout just leads to more occurrences of 'SSH: channel 0: rcvd adjust 131072' before it ultimately fails.

Looking at the 'fortios.rb' code, I see that only these commands are executed:

cfg << cmd('config global') if @vdom_enabled
cfg << cmd('end') if @vdom_enabled

Interestingly, this same setup is successfully backing up configurations from a FortiGate that isn't using vDOMs.