proftpd autenticazione mysql su debian squeeze

Obiettivo:

Creare un server ftp che effettui autenticazione su database mysql.

Ambiente e software:

• debian squeeze
• proftpd
• mysql 5

Installazione dei 3 software sopra:

apt-get install proftpd-basic mysql-server-5.0 proftpd-mod-mysql

Configurazione del database Mysql:

apt-get install proftpd-basic mysql-server-5.0 proftpd-mod-mysql

Creiamo l'utenza di sistema

[root]# groupadd -g 3000 ftpgroup [root]# useradd -u 3000 -s /bin/false -d /bin/null -c "proftpd user" -g ftpgroup ftpuser

Creiamo l'utente di servizio per mysql (per non utilizzare root)

mysql> CREATE DATABASE ftpserver; mysql> GRANT select,insert,update,delete ON ftpserver.* TO ftpadmin@localhost IDENTIFIED BY 'miapassword'; mysql> flush privileges;

Configuriamo proftpd (/etc/proftpd/proftpd.conf)

# # /etc/proftpd/proftpd.conf -- This is a basic ProFTPD configuration file. # To really apply changes reload proftpd after modifications. # # Includes DSO modules Include /etc/proftpd/modules.conf LoadModule mod_sql.c LoadModule mod_sql_mysql.c SQLAuthTypes Backend SQLAuthenticate users groups SQLConnectInfo ftpserver@localhost ftpadmin 123456 SQLUserInfo ftp_users user passwd uid gid homedir shell SQLGroupInfo ftp_group groupname gid members SQLMinID 3000 CreateHome on SQLLog PASS updatecount SQLNamedQuery updatecount UPDATE "count=count+1, accessed=now() WHERE user='%u'" ftp_users SQLLog STOR,DELE modified SQLNamedQuery modified UPDATE "modified=now() WHERE user='%u'" ftp_users RootLogin off RequireValidShell off # Set off to disable IPv6 support which is annoying on IPv4 only boxes. UseIPv6 on # If set on you can experience a longer connection delay in many cases. IdentLookups off ServerName "Debian" ServerType standalone DeferWelcome off MultilineRFC2228 on DefaultServer on ShowSymlinks on TimeoutNoTransfer 600 TimeoutStalled 600 TimeoutIdle 1200 DisplayLogin welcome.msg DisplayChdir .message true ListOptions "-l" DenyFilter \*.*/ # Use this to jail all users in their homes DefaultRoot ~ # Users require a valid shell listed in /etc/shells to login. # Use this directive to release that constrain. # RequireValidShell off # Port 21 is the standard FTP port. Port 21 # In some cases you have to specify passive ports range to by-pass # firewall limitations. Ephemeral ports can be used for that, but # feel free to use a more narrow range. # PassivePorts 49152 65534 # If your host was NATted, this option is useful in order to # allow passive tranfers to work. You have to use your public # address and opening the passive ports used on your firewall as well. # MasqueradeAddress 1.2.3.4 # This is useful for masquerading address with dynamic IPs: # refresh any configured MasqueradeAddress directives every 8 hours <ifmodule mod_dynmasq.c> # DynMasqRefresh 28800 </IfModule> # To prevent DoS attacks, set the maximum number of child processes # to 30. If you need to allow more than 30 concurrent connections # at once, simply increase this value. Note that this ONLY works # in standalone mode, in inetd mode you should use an inetd server # that allows you to limit maximum number of processes per service # (such as xinetd) MaxInstances 30 # Set the user and group that the server normally runs at. User proftpd Group nogroup # Umask 022 is a good standard umask to prevent new files and dirs # (second parm) from being group and world writable. Umask 022 022 # Normally, we want files to be overwriteable. AllowOverwrite on # Uncomment this if you are using NIS or LDAP via NSS to retrieve passwords: # PersistentPasswd off # This is required to use both PAM-based authentication and local passwords # AuthOrder mod_auth_pam.c* mod_auth_unix.c # Be warned: use of this directive impacts CPU average load! # Uncomment this if you like to see progress and transfer rate with ftpwho # in downloads. That is not needed for uploads rates. # # UseSendFile off TransferLog /var/log/proftpd/xferlog SystemLog /var/log/proftpd/proftpd.log DebugLevel 5 <ifmodule mod_quotatab.c> QuotaEngine off </IfModule> <ifmodule mod_ratio.c> Ratios off </IfModule> # Delay engine reduces impact of the so-called Timing Attack described in # http://security.lss.hr/index.php?page=details&ID=LSS-2004-10-02 # It is on by default. <ifmodule mod_delay.c> DelayEngine on </IfModule> <ifmodule mod_ctrls.c> ControlsEngine off ControlsMaxClients 2 ControlsLog /var/log/proftpd/controls.log ControlsInterval 5 ControlsSocket /var/run/proftpd/proftpd.sock </IfModule> <ifmodule mod_ctrls_admin.c> AdminControlsEngine off </IfModule> # # Alternative authentication frameworks # #Include /etc/proftpd/ldap.conf #Include /etc/proftpd/sql.conf # # This is used for FTPS connections # #Include /etc/proftpd/tls.conf # # Useful to keep VirtualHost/VirtualRoot directives separated # #Include /etc/proftpd/virtuals.con # A basic anonymous configuration, no upload directories. # <anonymous ~ftp> # User ftp # Group nogroup # # We want clients to be able to login with "anonymous" as well as "ftp" # UserAlias anonymous ftp # # Cosmetic changes, all files belongs to ftp user # DirFakeUser on ftp # DirFakeGroup on ftp # # RequireValidShell 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 # DisplayChdir .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>

Si ringrazia Ermanno Ancona per questo l'articolo