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UbuntuでDNSの設定を永続させる

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ubuntuの/etc/resolv.confが勝手に書き変わる問題

/etc/resolv.confを編集した後に、netplan apply等を実行するとデフォルトの設定に戻ってしまう場合がある。

手順

aptを叩くために/etc/resolv.confを編集

nameserver 8.8.8.8

resolvconfをインストール

sudo apt -y update
sudo apt -y install resolvconf

念のため手動で起動

sudo systemctl start resolvconf.service
sudo systemctl enable resolvconf.service
sudo systemctl status resolvconf.service

/etc/resolvconf/resolv.conf.d/headの編集

nano /etc/resolvconf/resolv.conf.d/head

下記を追加

nameserver 8.8.8.8 
nameserver 8.8.4.4

resolvconfの再起動

sudo systemctl restart resolvconf.service
sudo systemctl restart systemd-resolved.service

名前解決が出来れば完了!

参考文献

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