1、什麼是FTP
FTP（file transfer protocol）文件傳輸協議，可以使主機之間共享文件。
2、使用pure-ftp搭建FTP服務
下載pure-ftp軟件包
[root@localhost src]# wget http://download.pureftpd.org/pub/pure-ftpd/releases/pure-ftpd-1.0.32.tar.bz2
解壓安裝包
[root@localhost src]# tar jxvf pure-ftpd-1.0.32.tar.bz2
配置pure-ftp
[root@localhost src]# cd pure-ftpd-1.0.32 [root@localhost pure-ftpd-1.0.32]# ./configure --prefix=/usr/local/pureftpd --without-inetd --with-altlog --with-puredb --with-throttling --with-peruserlimits --with-tls
編譯安裝
[root@localhost pure-ftpd-1.0.32]# make && make install
查看/usr/local/pureftpd/目錄下生成的文件
[root@localhost pure-ftpd-1.0.32]# ls /usr/local/pureftpd/ bin sbin share
複製配置文件
[root@localhost pure-ftpd-1.0.32]# mkdir -p /usr/local/pureftpd/etc/ [root@localhost pure-ftpd-1.0.32]# cd configuration-file/ [root@localhost configuration-file]# ls Makefile Makefile.in pure-config.pl.in pure-config.py.in pure-ftpd.conf.in Makefile.am pure-config.pl pure-config.py pure-ftpd.conf [root@localhost configuration-file]# cp pure-ftpd.conf /usr/local/pureftpd/etc/ [root@localhost configuration-file]# cp pure-config.pl /usr/local/pureftpd/sbin/pure-config.pl [root@localhost configuration-file]# chmod 755 /usr/local/pureftpd/sbin/pure-config.pl
編寫配置文件pure-ftpd.conf
[root@localhost configuration-file]# vim /usr/local/pureftpd/etc/pure-ftpd.conf
ChrootEveryone yes
//用戶只能在他的家目錄
BrokenClientsCompatibility no
MaxClientsNumber 50
//最大併發的用戶
Daemonize yes
//在後臺運行進程
MaxClientsPerIP 8
VerboseLog no
//If you want to log all client commands, set this to "yes".
DisplayDotFiles yes
AnonymousOnly no
//Don't allow authenticated users - have a public anonymous FTP only.
NoAnonymous no
//Disallow anonymous connections. Only allow authenticated users.
SyslogFacility ftp
DontResolve yes
// Don't resolve host names in log files. Logs are less verbose,
// butit uses less bandwidth. Set this to "yes" on very busy servers or
//if you don't have a working DNS.
MaxIdleTime 15
//Maximum idle time in minutes (default = 15 minutes)
PureDB /usr/local/pureftpd/etc/pureftpd.pdb
//用戶數據庫
LimitRecursion 3136 8
//'ls' recursion limits. The first argument is the maximum number offiles to be displayed.
//The second one is the max subdirectories depth
AnonymousCanCreateDirs no
//Are anonymous users allowed to create new directories ?
MaxLoad 4
//If the system is more loaded than the following //value,anonymous users aren't allowed to download.
AntiWarez yes
//Disallow downloading of files owned by "ftp", ie.files that were uploaded but not validated by a local admin.
Umask 133:022
//File creation mask. <umask for files>:<umask for dirs> .
MinUID 100
//Minimum UID for an authenticated user to log in.
AllowUserFXP no
//Allow FXP transfers for authenticated users.
AllowAnonymousFXP no
//Allow anonymous FXP for anonymous and non-anonymous users.
ProhibitDotFilesWrite no
// Users can't delete/write files beginning with a dot ('.')even if they own them.
ProhibitDotFilesRead no
// Prohibit *reading* of files beginning with a dot (.history, .ssh...)
AutoRename no
//Never overwrite files. When a file whoose name already exist is uploaded,
//it get automatically renamed to file.1, file.2, file.3, ...
AnonymousCantUpload no
// Disallow anonymous users to upload new files (no = upload is allowed)
PIDFile /usr/local/pureftpd/var/run/pure-ftpd.pid
//If your pure-ftpd has been compiled with standalone support,
//you can change the location of the pid file. The default is /var/run/pure-ftpd.pid
MaxDiskUsage 99
CustomerProof yes
//If you're sure all your users have some basic Unix knowledge,
//this feature is useless. If you're a hosting service, enable it.創建FTP服務目錄
[root@localhost configuration-file]# mkdir /data/ftp [root@localhost configuration-file]# useradd www [root@localhost configuration-file]# passwd www Changing password for user www. New password: BAD PASSWORD: it is too simplistic/systematic BAD PASSWORD: is too simple Retype new password: passwd: all authentication tokens updated successfully. [root@localhost configuration-file]# chown -R www:www /data/ftp //更改屬主屬組
用系統賬號需創建虛擬FTP賬號
[root@localhost configuration-file]# /usr/local/pureftpd/bin/pure-pw useradd ftp1 -uwww -d/data/ftp Password: Enter it again: //創建虛擬賬號 [root@localhost configuration-file]# /usr/local/pureftpd/bin/pure-pw mkdb //創建密碼文件，二進制文件 [root@localhost configuration-file]# /usr/local/pureftpd/bin/pure-pw list ftp1 /data/ftp/./ //列出虛擬賬號 [root@localhost configuration-file]# /usr/local/pureftpd/bin/pure-pw useradd ftp2 -uwww -d /data/ftp Password: Enter it again: ][root@localhost configuration-file]# /usr/local/pureftpd/bin/pure-pw passwd ftp2 Password: Enter it again: //修改虛擬賬號密碼 [root@localhost configuration-file]# /usr/local/pureftpd/bin/pure-pw userdel ftp2 //刪除虛擬賬號 [root@localhost configuration-file]# /usr/local/pureftpd/bin/pure-pw list ftp1 /data/ftp/./
啓動pure-ftp
[root@localhost configuration-file]# /usr/local/pureftpd/sbin/pure-config.pl /usr/local/pureftpd/etc/pure-ftpd.conf Running: /usr/local/pureftpd/sbin/pure-ftpd -A -c50 -B -C8 -D -fftp -H -I15 -lpuredb:/usr/local/pureftpd/etc/pureftpd.pdb -L3136:8 -m4 -s -U133:022 -u100 -g/usr/local/pureftpd/var/run/pure-ftpd.pid -k99 -Z
[root@localhost configuration-file]# netstat -anpt |grep pure tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN 6721/pure-ftpd (SER tcp 0 0 :::21 :::* LISTEN 6721/pure-ftpd (SER
訪問pure-ftp
[root@client ~]# lftp [email protected] //客戶機 Password: lftp [email protected]:~> ls drwxr-xr-x 5 504 www 4096 Apr 22 11:02 . drwxr-xr-x 5 504 www 4096 Apr 22 11:02 .. drwxr-xr-x 2 0 0 4096 Apr 22 11:02 aa drwxr-xr-x 2 0 0 4096 Apr 22 11:02 bb drwxr-xr-x 2 0 0 4096 Apr 22 11:02 cc -rw-r--r-- 1 0 0 0 Apr 22 11:02 ee -rw-r--r-- 1 0 0 0 Apr 22 11:02 qq -rw-r--r-- 1 0 0 0 Apr 22 11:02 ww