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Zenarmor Devices - Hostname Change
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Topic: Zenarmor Devices - Hostname Change (Read 868 times)
flyingbird76
Newbie
Posts: 5
Karma: 0
Zenarmor Devices - Hostname Change
«
on:
July 29, 2024, 01:09:52 pm »
I am a Zenarmor home subscriber and have a small issue with the 'Devices' feature.
I have changed the hostname of one of my devices but the hostname for the device is not updating in the devices list. I have removed the device, generated some traffic on the device to force it to appear again as a new device, marked it as a trusted device, but it is still showing the old hostname.
How do I update the hostname of the device in the Zenarmor device list or is there a method to force Zenarmor to re-query (reverse DNS lookup I assume) my DNS servers (unbound on Opnsense) to get the updated hostname?
Zenarmor is configured to use unbound DNS on Opnsense itself for DNS enrichment.
Performing a reverse DNS lookup of the IP address of the device that has had its hostname returns the correct hostname.
«
Last Edit: July 29, 2024, 03:52:37 pm by flyingbird76
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sy
Hero Member
Posts: 593
Karma: 44
Re: Zenarmor Devices - Hostname Change
«
Reply #1 on:
July 29, 2024, 01:18:37 pm »
Hi,
Do you mean the Device Name? Did you change the Device name in the Device Menu? Zenarmor uses the hostname as the device name, but you can change it by clicking on the device in the device menu and editing the name field.
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flyingbird76
Newbie
Posts: 5
Karma: 0
Re: Zenarmor Devices - Hostname Change
«
Reply #2 on:
July 29, 2024, 01:25:34 pm »
Hi
No, i mean the actual hostname that is shown under the device properties in Zenarmor. I have updated the name in Zenarmor to the correct new name, but the hostname is still showing as the old name.
I have attached a screenshot (some info redacted) that shows the Zenarmor device name and hostname mismatch.
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flyingbird76
Newbie
Posts: 5
Karma: 0
Re: Zenarmor Devices - Hostname Change
«
Reply #3 on:
July 29, 2024, 04:07:49 pm »
Update:
The hostname of the device has now changed in Zenarmor devices. I'm not sure what caused the change. I applied the latest hotfix for opnsense (24.7_9) and I also rebooted the firewall post update (I know that's not required, but i always like to reboot ASAP after an upgrade).
I don't know if it was the update (unlikely based on release notes), the firewall reboot, or if Zenarmor refreshes hostnames for devices periodically.
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sy
Hero Member
Posts: 593
Karma: 44
Re: Zenarmor Devices - Hostname Change
«
Reply #4 on:
July 30, 2024, 10:44:41 pm »
Hi,
Zenarmor updates device information from the network packages. When new information is caught, it is changing.
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Seimus
Hero Member
Posts: 607
Karma: 59
Re: Zenarmor Devices - Hostname Change
«
Reply #5 on:
July 31, 2024, 11:51:48 am »
There are two fields in ZA Device TAB
A. Name
B. Hostname
The Name is changeable and re-writable by user, you can use what ever you want. But as a Rule of thumb is better to use the same Name as is the Hostname if the Hostname is present. This helps when you inspect sessions, reports etc.
The Hostname can not be changed by user, as mentioned by sy, this is automatically updated. ZA gets the information about the Hostname by "discovering" the network. If a device goes thru ZA is continually discovering it parameters (if you didn't manually stop it per device). Usually if you have enabled DNS enriching, and your DNS knows about IP to Hostname, Zenarmor will get the Hostname from it.
Regards,
S.
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