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Discussions High Memory Usage on XG Virtual - possibly related with dns server

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High Memory Usage on XG Virtual - possibly related with dns server

Halino over 3 years ago

Hi,

i configured some clients in the network to start using the XG as dns server on saturday mid-day.

After this you can see the memory usage ramping up, is possible that there is a memory leak?

Fw is on SFVH (SFOS 18.5.1 MR-1-Build326)

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0 rfcat_vk over 3 years ago

Hi,

you might have a dns loop?
ian
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0 Halino over 3 years ago in reply to rfcat_vk

Hi,

i'm using 1.1.1.1 and 1.0.0.1 as dns servers, going out thought wan.
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0 Halino over 3 years ago in reply to Halino

I had also some dns timeout issues, and clients with dns not working. The clients are not directly connected to the firewall, there is another L3 step before.
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0 rfcat_vk over 3 years ago in reply to Halino

So, what do the clients use for a dns?
ian
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0 Halino over 3 years ago in reply to rfcat_vk

The clients were using the sophos xg as dns server, then the sohpos is using cloudflare.
But with this config you can see the memory usage increasing, rolling back the clients to use the cloudflare dnses directly and then memory leak stopped.
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