вот логи фтпэшника
это лог при нормальном входе:
CONNECT: Client "ip"
FTP response: Client "ip", "220 (vsFTPd 2.0.1)"
FTP command: Client "ip", "FEAT"
FTP response: Client "ip", "211-Features:"
FTP response: Client "ip", " EPRT??"
FTP response: Client "ip", " EPSV??"
FTP response: Client "ip", " MDTM??"
FTP response: Client "ip", " PASV??"
FTP response: Client "ip", " REST STREAM??"
FTP response: Client "ip", " SIZE??"
FTP response: Client "ip", " TVFS??"
FTP response: Client "ip", "211 End"
FTP command: Client "ip", "USER anonymous"
[ftp] OK LOGIN: Client "ip", anon password "<no_password>"
[ftp] FTP response: Client "ip", "230 Login successful."
[ftp] FTP command: Client "ip", "PWD"
[ftp] FTP response: Client "ip", "257 "/""
[ftp] FTP command: Client "ip", "PASV"
[ftp] FTP response: Client "ip", "227 Entering Passive Mode (83,166,40,61,123,191)"
[ftp] FTP command: Client "ip", "LIST"
[ftp] FTP response: Client "ip", "150 Here comes the directory listing."
[ftp] FTP response: Client "ip", "226 Directory send OK."
[ftp] FTP command: Client "ip", "QUIT"
[ftp] FTP response: Client "ip", "221 Goodbye."
а вот это лог когда возникает ошибка:
CONNECT: Client "ip"
FTP response: Client "ip", "220 (vsFTPd 2.0.1)"
FTP command: Client "ip", "USER anonymous"
[ftp] OK LOGIN: Client "ip", anon password "<no_password>"
[ftp] FTP response: Client "ip", "230 Login successful."
[ftp] FTP command: Client "ip", "SYST"
[ftp] FTP response: Client "ip", "550 Permission denied."
после command: Client "ip", "SYST" я писал ls 1-ый раз он мне выдавал OOPS ..... vsf_sysutil_recv_peek, после чего я нова писал ls и получал Segmentation Fault
Может логи помогут разобраться