220 (vsFTPd 2.0.5)
230 Login successful.
214-The following commands are recognized.
 ABOR ACCT ALLO APPE CDUP CWD  DELE EPRT EPSV FEAT HELP LIST MDTM MKD
 MODE NLST NOOP OPTS PASS PASV PORT PWD  QUIT REIN REST RETR RMD  RNFR
 RNTO SITE SIZE SMNT STAT STOR STOU STRU SYST TYPE USER XCUP XCWD XMKD
 XPWD XRMD
214 Help OK.
211-Features:
 EPRT
 EPSV
 MDTM
 PASV
 REST STREAM
 SIZE
 TVFS
 UTF8
211 End

HTTP/1.0 401 Authorization Required
WWW-Authenticate: BASIC realm="Administrator or User"

HTTP/1.0 401 Authorization Required
WWW-Authenticate: BASIC realm="Administrator or User"

D-Link/Airlink IP webcam http config1.0

HTTP/1.0 200 OK
Server: Camera Web Server/1.0
Auther: Steven Wu
MIME-version: 1.0
Cache-Control: no-cache
Content-Type: text/html
Content-Length: 1681

HTTP/1.0 401 Unauthorized
Content-type: text/html; charset=iso-8859-1
Accept-Ranges: bytes
Connection: close
WWW-Authenticate: Basic realm="GeneralUser/Administrator"