220 (vsFTPd 3.0.2)
530 Login incorrect.
530 Please login with USER and PASS.
211-Features:
 EPRT
 EPSV
 MDTM
 PASV
 REST STREAM
 SIZE
 TVFS
 UTF8
211 End

Portmap
Program	Version	Protocol	Port
portmapper	4	tcp	111
portmapper	3	tcp	111
portmapper	2	tcp	111
portmapper	4	udp	111
portmapper	3	udp	111
portmapper	2	udp	111

NTP
protocolversion: 3
stratum: 3
leap: 0
precision: -24
rootdelay: 0.243621826172
rootdisp: 0.0456237792969
refid: 1311663796
reftime: 3951413578.85
poll: 3

HTTP/1.1 401 Unauthorized
Content-Type: application/json; charset=utf-8
Date: Sat, 15 Mar 2025 15:57:17 GMT
Content-Length: 25

{"msg":"签名不存在"}