[Original] FTP Protocol Security Analysis
-------------------------------------------------------------------------------- FTP Protocol Security AnalysisAuthor: Xinhe
PrefaceFile Transfer Protocol (FTP) is one of the common protocols on the Internet.
Ftp: connect: Unknown error codes can be accessed on virtual machines without modification by default, for example: python code [root @ tong vsftpd] # ftp 127.0.0.1 Connected to 127.0.0.1 (127.0.0.1 ). 220 (vsFTPd 2.1.2) Name (127.0.0.1: tong): ftp /
Recently, the company has an internal competition (hackathon), enrolled in such a tournament, while preparing the entries (the participating servers need to build their own), taking this opportunity, decided to put the knowledge of the Tomcat
1. Install vsftp
Here, we set up virtual users. The so-called virtual users do not use real accounts, but only map accounts and Set permissions by some means.
Yum install vsftpd
Touch/var/log/vsftpd. log # create a vsftp log File
In CentOS, you
I. PrefaceVsftp (Very Secure FTP) is a Secure, fast, and stable FTP server in Unix/Linux. There are three ways to implement Vsftpd: 1. Anonymous user mode: by default, the system only provides anonymous user access 2. Local User Mode: use the
FTP protocol
1. File Transfer
The file transmission service is an essential service for the Network Interconnection Environment. Currently, the most important transmission mode for file transmission in the network is the FTP protocol.
Using vsftp to set up FTP sites in Linux 1. Statement
Copyright (c) 2006-2007 belongs to etony c. f..Reprinted from http://www.debsir.org /.
2. FTP principles
The abbreviation of FTP Transfer Protocol is described in RFC 959.
An FTP session
A list of FTP error codes150 file is in good condition, open data connection200 Command success202 Command not implemented211 System State or system help response212 Directory Status213 File Status214 Help information, information only useful to
This afternoon with Banana Pi in the dormitory open FTP server, open when there is no problem, the results of the computer on the ArchLinux connection, always hint to illegal PORT command, Unknown command.
Online search, are talking about the
Among all FTP server software, Serv-U has most of the functions of other similar software, it also supports resumable data transfer, bandwidth restrictions, remote management, remote printing, and virtual hosts. In addition, it provides a sound
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