NTLM V1 Being Diabled

[Nickjames2006]

Hi,
First Time poster so be kind.
Our I.T network guys are going to disable NTLM V1 authentication and only allow NTLM v2. Can I ask will this stop Nagios authenticating against servers that it monitors using Windows WMI? or will I have to change anything with configs?

Thanks

Nick James

[benjaminsmith]

Hi Nick,

What plugins are you using for WMI monitoring? Are you using the WMI wizard? The check_wmi_plus plugin used by the wizard has an option to force NTLMv2, and it maybe necessary to enable that.

See: Nagios XI WMI Troubleshooting

[Nickjames2006]

Hi Benjamin,
I have all 100+ servers monitored using the windows WMI Wizard

I'm taking it that I need to edit the check_wmi_plus.pl file to force this option. But it seems to be in 2 - 3 places i have attached my file if you could let me know where to change that would be most helpful

[benjaminsmith]

Hi Nick,

There's a separate configuration file for the plugin in the same directory called check_wmi_plus.conf. You'll want to edit line 85 of that file (best to make backup of the file before making changes).

Follow the steps in the WMI Troubleshooting Guide under Force NTLMv2:

https://support.nagios.com/kb/article/n ... g-579.html