靶机下载地址为：https://hackmyvm.eu/machines/machine.php?vm=Universe
用nmap扫描常用端口，发现21、22。
└─$ nmap -sV -sC -Pn 192.168.56.125
PORT STATE SERVICE VERSION
21/tcp open ftp vsftpd 3.0.3
22/tcp open ssh OpenSSH 9.2p1 Debian 2+deb12u2 (protocol 2.0)
| ssh-hostkey:
| 256 95:d6:5d:68:a3:38:f7:74:87:b3:99:20:f8:be:45:4d (ECDSA)
|_ 256 11:77:31:ae:36:4e:22:45:9c:89:8f:5e:e6:01:83:0d (ED25519)
Service Info: OSs: Unix, Linux; CPE: cpe:/o:linux:linux_kernel