Attaching a firewall to a droplet slows down DNS resolution by 2 seconds

I recently noticed that running git on my server became a lot slower. I timed the time it takes to resolve and this is the result:

$ time dig +short

real    0m2.011s
user    0m0.011s
sys     0m0.005s

Over 2 seconds! When I removed my droplet from the firewall, the result was dramatically different:

$ time dig +short

real    0m0.013s
user    0m0.008s
sys     0m0.004s

Here’s the configuration of my firewall:

DigitalOcean panel firewall settings
Firewall settings

Why is that happening?

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Bobby Iliev
Site Moderator
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February 26, 2023
Accepted Answer

Hi there,

Make sure to also allow All UDP to the Outbound Rules and that will fix the issue.

Let me know how it goes!



I am facing same issue, +1

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