查看SMB服务器版本

 nmap --script smb-protocols 192.168.1.1
Starting Nmap 7.80 ( https://nmap.org ) at 2021-02-28 19:28 CST
Nmap scan report for 192.168.1.1
Host is up (0.00019s latency).
Not shown: 993 closed ports
PORT     STATE SERVICE
21/tcp   open  ftp
22/tcp   open  ssh
25/tcp   open  smtp
111/tcp  open  rpcbind
139/tcp  open  netbios-ssn
445/tcp  open  microsoft-ds
2049/tcp open  nfs

Host script results:
| smb-protocols: 
|   dialects: 
|     NT LM 0.12 (SMBv1) [dangerous, but default]
|     2.02
|     2.10
|_    3.00

Nmap done: 1 IP address (1 host up) scanned in 13.23 seconds