用惯了proftpd，本来打算用pureftpd的，后来想想算了。proftpd虚拟用户的配置其实很早就解决了，只是虚拟用户和本地用户同时登录，一直没有解决。于是趁这个机会仔细研究了下。依然是debian下面的配置。
参考站点：HowtoForge 上面有很多server的配置，各种平台下，从debian到redhat，以及suse,mandriva都有，非常详细。强烈推荐。
安装mysql和phpmyadmin，其中phpmyadmin不是必需的
apt-get install mysql-server mysql-client libmysqlclient15-dev phpmyadmin apache2
为mysql设置root密码
mysqladmin -u root password yourrootsqlpassword
如果需要其他人访问本机的mysql，同样需要设置密码
mysqladmin -h server1.example.com -u root password yourrootsqlpassword
安装带mysql支持的proftpd，注意选择proftpd工作在standalone模式
apt-get install proftpd-mysql
建立虚拟用户组，这个是为了把proftpd用户虚拟到本机的一个用户上。注意下面的2001修改为自定义的。
groupadd -g 2001 ftpgroup
useradd -u 2001 -s /bin/false -d /bin/null -c “proftpd user” -g ftpgroup ftpuser
建立proftpd使用的mysql数据库，并创建数据表。
bt:~# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 18
Server version: 5.0.32-Debian_7etch1-log Debian etch distributionType ‘help;’ or ‘h’ for help. Type ‘c’ to clear the buffer.
mysql> create database ftp;
Query OK, 1 row affected (0.00 sec)mysql> GRANT SELECT, INSERT, UPDATE, DELETE ON ftp.* TO ‘proftpd’@’localhost’ IDENTIFIED BY ‘password’;
Query OK, 0 rows affected (0.00 sec)mysql> GRANT SELECT, INSERT, UPDATE, DELETE ON ftp.* TO ‘proftpd’@’localhost.localdomain’ IDENTIFIED BY ‘password’;
Query OK, 0 rows affected (0.00 sec)mysql> USE ftp;
Database changed
mysql> CREATE TABLE ftpgroup (groupname varchar(16) NOT NULL default ”,gid smallint(6) NOT NULL default ‘5500’,members varchar(16) NOT NULL default ”,KEY groupname (groupname)) TYPE=MyISAM COMMENT=’ProFTP group table’;
Query OK, 0 rows affected, 1 warning (0.06 sec)mysql> CREATE TABLE ftpquotalimits (
-> name varchar(30) default NULL,
-> quota_type enum(‘user’,’group’,’class’,’all’) NOT NULL default ‘user’,
-> per_session enum(‘false’,’true’) NOT NULL default ‘false’,
-> limit_type enum(‘soft’,’hard’) NOT NULL default ‘soft’,
-> bytes_in_avail int(10) unsigned NOT NULL default ‘0’,
-> bytes_out_avail int(10) unsigned NOT NULL default ‘0’,
-> bytes_xfer_avail int(10) unsigned NOT NULL default ‘0’,
-> files_in_avail int(10) unsigned NOT NULL default ‘0’,
-> files_out_avail int(10) unsigned NOT NULL default ‘0’,
-> files_xfer_avail int(10) unsigned NOT NULL default ‘0’
-> ) TYPE=MyISAM;
Query OK, 0 rows affected, 1 warning (0.03 sec)mysql> CREATE TABLE ftpquotatallies (
-> name varchar(30) NOT NULL default ”,
-> quota_type enum(‘user’,’group’,’class’,’all’) NOT NULL default ‘user’,
-> bytes_in_used int(10) unsigned NOT NULL default ‘0’,
-> bytes_out_used int(10) unsigned NOT NULL default ‘0’,
-> bytes_xfer_used int(10) unsigned NOT NULL default ‘0’,
-> files_in_used int(10) unsigned NOT NULL default ‘0’,
-> files_out_used int(10) unsigned NOT NULL default ‘0’,
-> files_xfer_used int(10) unsigned NOT NULL default ‘0’
-> ) TYPE=MyISAM;
Query OK, 0 rows affected, 1 warning (0.03 sec)mysql> CREATE TABLE ftpuser (
-> id int(10) unsigned NOT NULL auto_increment,
-> userid varchar(32) NOT NULL default ”,
-> passwd varchar(32) NOT NULL default ”,
-> uid smallint(6) NOT NULL default ‘5500’,
-> gid smallint(6) NOT NULL default ‘5500’,
-> homedir varchar(255) NOT NULL default ”,
-> shell varchar(16) NOT NULL default ‘/sbin/nologin’,
-> count int(11) NOT NULL default ‘0’,
-> accessed datetime NOT NULL default ‘0000-00-00 00:00:00’,
-> modified datetime NOT NULL default ‘0000-00-00 00:00:00’,
-> PRIMARY KEY (id),
-> UNIQUE KEY userid (userid)
-> ) TYPE=MyISAM COMMENT=’ProFTP user table’;
Query OK, 0 rows affected, 1 warning (0.03 sec)mysql> quit;
Bye
然后就是修改proftpd的配置文件了，nano /etc/proftpd/proftpc.conf
首先关闭对ipv6支持
UseIPv6 off
然后增加对mysql的验证支持
DefaultRoot ~
# The passwords in MySQL are encrypted using CRYPT
SQLAuthTypes Plaintext Crypt
SQLAuthenticate users groups# used to connect to the database
# databasename@host database_user user_password
SQLConnectInfo ftp@localhost proftpd password# Here we tell ProFTPd the names of the database columns in the “usertable”
# we want it to interact with. Match the names with those in the db
SQLUserInfo ftpuser userid passwd uid gid homedir shell# Here we tell ProFTPd the names of the database columns in the “grouptable”
# we want it to interact with. Again the names match with those in the db
SQLGroupInfo ftpgroup groupname gid members# set min UID and GID – otherwise these are 999 each
SQLMinID 500# create a user’s home directory on demand if it doesn’t exist
SQLHomedirOnDemand on# Update count every time user logs in
SQLLog PASS updatecount
SQLNamedQuery updatecount UPDATE “count=count+1, accessed=now() WHERE userid=’%u'” ftpuser# Update modified everytime user uploads or deletes a file
SQLLog STOR,DELE modified
SQLNamedQuery modified UPDATE “modified=now() WHERE userid=’%u'” ftpuser# User quotas
# ===========
QuotaEngine on
QuotaDirectoryTally on
QuotaDisplayUnits Mb
QuotaShowQuotas onSQLNamedQuery get-quota-limit SELECT “name, quota_type, per_session, limit_type, bytes_in_avail, bytes_out_avail, bytes_xfer_avail, files_in_avail, files_out_avail, files_xfer_avail FROM ftpquotalimits WHERE name = ‘%{0}’ AND quota_type = ‘%{1}'”
SQLNamedQuery get-quota-tally SELECT “name, quota_type, bytes_in_used, bytes_out_used, bytes_xfer_used, files_in_used, files_out_used, files_xfer_used FROM ftpquotatallies WHERE name = ‘%{0}’ AND quota_type = ‘%{1}'”
SQLNamedQuery update-quota-tally UPDATE “bytes_in_used = bytes_in_used + %{0}, bytes_out_used = bytes_out_used + %{1}, bytes_xfer_used = bytes_xfer_used + %{2}, files_in_used = files_in_used + %{3}, files_out_used = files_out_used + %{4}, files_xfer_used = files_xfer_used + %{5} WHERE name = ‘%{6}’ AND quota_type = ‘%{7}'” ftpquotatallies
SQLNamedQuery insert-quota-tally INSERT “%{0}, %{1}, %{2}, %{3}, %{4}, %{5}, %{6}, %{7}” ftpquotatallies
QuotaLimitTable sql:/get-quota-limit
QuotaTallyTable sql:/get-quota-tally/update-quota-tally/insert-quota-tallyRootLogin off
RequireValidShell off
然后nano /etc/proftpd/modules.conf，注释掉没用的部分，然后重新启动proftpd
#LoadModule mod_sql_postgres.c
/etc/init.d/proftpd restart
建立数据库并测试，强烈推荐这些通过phpmyadmin来进行操作
mysql -u root -p
USE ftp;
INSERT INTO `ftpgroup` (`groupname`, `gid`, `members`) VALUES (‘ftpgroup’, 2001, ‘ftpuser’);
INSERT INTO `ftpquotalimits` (`name`, `quota_type`, `per_session`, `limit_type`, `bytes_in_avail`, `bytes_out_avail`, `bytes_xfer_avail`, `files_in_avail`, `files_out_avail`, `files_xfer_avail`) VALUES (‘exampleuser’, ‘user’, ‘true’, ‘hard’, 15728640, 0, 0, 0, 0, 0);
INSERT INTO `ftpuser` (`id`, `userid`, `passwd`, `uid`, `gid`, `homedir`, `shell`, `count`, `accessed`, `modified`) VALUES (1, ‘exampleuser’, ‘secret’, 2001, 2001, ‘/home/www.example.com’, ‘/sbin/nologin’, 0, ”, ”);
quit;
下面是配置匿名用户登录
依然是增加一个用户组
groupadd -g 2002 anonymous_ftp
useradd -u 2002 -s /bin/false -d /home/anonymous_ftp -m -c “Anonymous FTP User” -g anonymous_ftp anonymous_ftp
建立登录文件夹，如果想匿名用户和虚拟用户登录到同一个地方，这一步可以略过，在proftpd的配置文件中指定就行了
mkdir /home/anonymous_ftp/incoming
chown anonymous_ftp:nogroup /home/anonymous_ftp/incoming
然后编辑proftpd的配置文件，增加下面部分，然后重新启动。配置文件具体含义不说了
<Anonymous ~anonymous_ftp>
User anonymous_ftp
Group nogroup
# We want clients to be able to login with “anonymous” as well as “ftp”
UserAlias anonymous anonymous_ftp
# Cosmetic changes, all files belongs to ftp user
DirFakeUser on anonymous_ftp
DirFakeGroup on anonymous_ftpRequireValidShell off
# Limit the maximum number of anonymous logins
MaxClients 10# We want ‘welcome.msg’ displayed at login, and ‘.message’ displayed
# in each newly chdired directory.
DisplayLogin welcome.msg
DisplayFirstChdir .message# Limit WRITE everywhere in the anonymous chroot
<Directory *>
<Limit WRITE>
DenyAll
</Limit>
</Directory># Uncomment this if you’re brave.
<Directory incoming>
# Umask 022 is a good standard umask to prevent new files and dirs
# (second parm) from being group and world writable.
Umask 022 022
<Limit READ WRITE>
DenyAll
</Limit>
<Limit STOR>
AllowAll
</Limit>
</Directory></Anonymous>
这样就ok了