DNF 套件管理指令

1. dnf [Tab][Tab] 提示 dnf 工具有 112 可命令可用。

   [root@kvm8 ~]# dnf [Tab][Tab]
   Display all 112 possibilities? (y or n)
   

2. 列出 dnf 使用的所有套件庫

   [root@kvm8 ~]# dnf repolist
   repo id                                 repo name
   AppStream                               App Stream
   BaseOs                                  Base OS
   

3. 搜尋 ftp 相關的套件

   [root@kvm8 ~]# dnf search ftp
   baseos                                          8.9 MB/s | 1.5 MB     00:00
   appstream                                        12 MB/s | 1.5 MB     00:00
   Last metadata expiration check: 0:00:01 ago on Wed 08 Oct 2025 02:54:42 PM CST.
   ========================= Name & Summary Matched: ftp ==========================
   ftp.x86_64 : The standard UNIX FTP (File Transfer Protocol) client
   python3-requests-ftp.noarch : FTP transport adapter for python3-requests
   syslinux-tftpboot.noarch : SYSLINUX modules in /tftpboot, available for network
                            : booting
   tftp.x86_64 : The client for the Trivial File Transfer Protocol (TFTP)
   tftp-server.x86_64 : The server for the Trivial File Transfer Protocol (TFTP)
   vsftpd.x86_64 : Very Secure Ftp Daemon
   ============================== Name Matched: ftp ===============================
   lftp.x86_64 : A sophisticated file transfer program
   ============================= Summary Matched: ftp =============================
   curl.x86_64 : A utility for getting files from remote servers (FTP, HTTP, and
               : others)
   nbdkit-curl-plugin.x86_64 : HTTP/FTP (cURL) plugin for nbdkit
   wget.x86_64 : A utility for retrieving files using the HTTP or FTP protocols
   

4. 試安裝 vsftpd？如果出現 Is this ok [y//N]: 表示設定無誤可以取得套件進行安裝。y 安裝、N 不安裝，輸入 n 不安裝退出。

   [root@kvm8 ~]# dnf install vsftpd
   Last metadata expiration check: 3:23:43 ago on Tue 30 Sep 2025 03:11:06 PM CST.
   Dependencies resolved.
   ================================================================================
    Package         Architecture    Version               Repository          Size
   ================================================================================
   Installing:
    vsftpd          x86_64          3.0.5-9.el10          AppStream          171 k
   
   Transaction Summary
   ================================================================================
   Install  1 Package
   
   Total download size: 171 k
   Installed size: 344 k
   Is this ok [y/N]: n
   Operation aborted.