A temporary glitch in your network stack can often be cleared with a simple reboot of your device and modem. You should see a confirmation message indicating that the resolver cache was successfully flushed.
Quick DNS Fixes Guide: Flush Cache and Reboot
On Linux If you are using a systemd-resolved service, the command is usually sudo systemd-resolve --flush-caches. Encountering a DNS issue can halt your entire online experience, preventing you from accessing websites even when your internet connection appears stable.
Flushing the DNS Cache Your operating system maintains a local cache of DNS records to speed up future requests. Power cycling your router refreshes the connection to your ISP and clears any corrupted local cache that might be holding onto incorrect address information.
Flush DNS Cache to Fix DNS Issues Fast
Over time, this cache can become corrupted or outdated, especially if a website has recently changed its IP address. Systems using nscd may require sudo /etc/init.
More About How to fix dns issue
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