hello all. A few things i need help with: 1 . How do i create a user for FTP usage only? 2 . How do I lock that user to /home/"user_name"/? Your help will be greatly appreciated
i'd like to create a system user, and lock then to their home folder. I have my admin ubuntu account which i sue and can access root folders, but i have someone who i want to lock down
Try this: Code: useradd -d /home/sample_user -g users sample_user passwd sample_user In your proftpd.conf you need the directive Code: DefaultRoot ~ Please be aware that all system users can alse receive email (for example if someone sends to <username>@<hostname>). You could set up an alias in /etc/aliases to prevent this: Code: sample_user: /dev/null Run Code: newaliases afterwards and restart Postfix.
This is from netstat -tap: Code: Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 *:mysql *:* LISTEN 21129/mysqld tcp 0 0 *:www *:* LISTEN 20080/apache2 tcp 0 0 *:ssh *:* LISTEN 4290/sshd tcp 0 0 *:smtp *:* LISTEN 5206/master tcp 0 0 *:https *:* LISTEN 20080/apache2 tcp 0 300 server1.yellow-zebr:ssh 207.138.98.253:40303 ESTABLISHED 6046/sshd: administ tcp6 0 0 [::]:imaps [::]:* LISTEN 5088/couriertcpd tcp6 0 0 [::]:pop3s [::]:* LISTEN 5126/couriertcpd tcp6 0 0 [::]:pop3 [::]:* LISTEN 5104/couriertcpd tcp6 0 0 [::]:imap2 [::]:* LISTEN 5061/couriertcpd tcp6 0 0 [::]:ftp [::]:* LISTEN 21010/proftpd: (acc tcp6 0 0 [::]:ssh [::]:* LISTEN 4290/sshd tcp6 0 0 [::]:smtp [::]:* LISTEN 5206/master root@server1:/home/administrator# And this is my ProFTPD.conf: Code: # # /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 # 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 ~ IdentLookups off ServerIdent on "FTP Server ready." # 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 # Choose a SQL backend among MySQL or PostgreSQL. # Both modules are loaded in default configuration, so you have to specify the backend # or comment out the unused module in /etc/proftpd/modules.conf. # Use 'mysql' or 'postgres' as possible values. # #<IfModule mod_sql.c> # SQLBackend mysql #</IfModule> TransferLog /var/log/proftpd/xferlog SystemLog /var/log/proftpd/proftpd.log <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 # [url]http://security.lss.hr/index.php?page=details&ID=LSS-2004-10-02[/url] # 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 # 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 # 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>
Did you try both active and passive transfers in your FTP client? Make sure that the firewall allows FTP. Also, are there any errors in the logs?
