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dnf: yumの後継
- インストール可能なバージョン一覧
- fastestmirror: 早いミラーを選択する

dnf: yumの後継 †

DNF Configuration Reference — DNF @DNF_VERSION@-1 documentation
- RHEL 8移行はyumの代わりにdnfコマンドに変わった。yumはdnfのalias
- yumはpython2系でEOLのため、dnfはpython3で開発されているらしい

インストール可能なバージョン一覧 †

exampleのインストール可能なバージョン一覧
```
dnf search --showduplicates example
```

fastestmirror: 早いミラーを選択する †

defaultは無効になっている
yumの場合は別プラグイン(yum-plugin-fastestmirror)だったが、dnfでは統合されたようだ
```
sudo vim /etc/dnf/dnf.conf
--
fastestmirror = True
--
```

"determining the fastest mirror" のようにメッセージが出れば使われている
```
sudo dnf info monit
...
determining the fastest mirror (20 hosts).. done
```

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Last-modified: 2025-06-16 (月) 15:53:12