Linux
設置只有一個ip可以訪問ftp服務
如何使用hosts.allow中的ftpd服務只允許一個ip？
並拒絕使用hosts.deny 中的ftpd 伺服器的所有IP？或者還有另一種方法可以讓只有一個IP可以訪問proftpd
我正在使用 proftpd
這是conf文件
# This is the ProFTPD configuration file # # See: http://www.proftpd.org/docs/directives/linked/by-name.html # Server Config - config used for anything outside a <VirtualHost> or <Global> context # See: http://www.proftpd.org/docs/howto/Vhost.html ServerName "ProFTPD server" ServerIdent on "FTP Server ready." ServerAdmin root@localhost DefaultServer on # Cause every FTP user except adm to be chrooted into their home directory # Aliasing /etc/security/pam_env.conf into the chroot allows pam_env to # work at session-end time (http://bugzilla.redhat.com/477120) VRootEngine on DefaultRoot ~ !adm VRootAlias /etc/security/pam_env.conf etc/security/pam_env.conf # Use pam to authenticate (default) and be authoritative AuthPAMConfig proftpd AuthOrder mod_auth_pam.c* mod_auth_unix.c # If you use NIS/YP/LDAP you may need to disable PersistentPasswd #PersistentPasswd off # Don't do reverse DNS lookups (hangs on DNS problems) UseReverseDNS off # Set the user and group that the server runs as User nobody Group nobody # To prevent DoS attacks, set the maximum number of child processes # to 20. If you need to allow more than 20 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 20 # Disable sendfile by default since it breaks displaying the download speeds in # ftptop and ftpwho UseSendfile off # Define the log formats LogFormat default "%h %l %u %t \"%r\" %s %b" LogFormat auth "%v [%P] %h %t \"%r\" %s" # Dynamic Shared Object (DSO) loading # See README.DSO and howto/DSO.html for more details # # General database support (http://www.proftpd.org/docs/contrib/mod_sql.html) # LoadModule mod_sql.c # # Support for base-64 or hex encoded MD5 and SHA1 passwords from SQL tables # (contrib/mod_sql_passwd.html) # LoadModule mod_sql_passwd.c # # Mysql support (requires proftpd-mysql package) # (http://www.proftpd.org/docs/contrib/mod_sql.html) # LoadModule mod_sql_mysql.c # # Postgresql support (requires proftpd-postgresql package) # (http://www.proftpd.org/docs/contrib/mod_sql.html) # LoadModule mod_sql_postgres.c # # Quota support (http://www.proftpd.org/docs/contrib/mod_quotatab.html) # LoadModule mod_quotatab.c # # File-specific "driver" for storing quota table information in files # (http://www.proftpd.org/docs/contrib/mod_quotatab_file.html) # LoadModule mod_quotatab_file.c # # SQL database "driver" for storing quota table information in SQL tables # (http://www.proftpd.org/docs/contrib/mod_quotatab_sql.html) # LoadModule mod_quotatab_sql.c # # LDAP support (requires proftpd-ldap package) # (http://www.proftpd.org/docs/directives/linked/config_ref_mod_ldap.html) # LoadModule mod_ldap.c # # LDAP quota support (requires proftpd-ldap package) # (http://www.proftpd.org/docs/contrib/mod_quotatab_ldap.html) # LoadModule mod_quotatab_ldap.c # # Support for authenticating users using the RADIUS protocol # (http://www.proftpd.org/docs/contrib/mod_radius.html) # LoadModule mod_radius.c # # Retrieve quota limit table information from a RADIUS server # (http://www.proftpd.org/docs/contrib/mod_quotatab_radius.html) # LoadModule mod_quotatab_radius.c # # Administrative control actions for the ftpdctl program # (http://www.proftpd.org/docs/contrib/mod_ctrls_admin.html) # LoadModule mod_ctrls_admin.c # # Execute external programs or scripts at various points in the process # of handling FTP commands # (http://www.castaglia.org/proftpd/modules/mod_exec.html) # LoadModule mod_exec.c # # Support for POSIX ACLs # (http://www.proftpd.org/docs/modules/mod_facl.html) # LoadModule mod_facl.c # # Support for using the GeoIP library to look up geographical information on # the connecting client and using that to set access controls for the server # (http://www.castaglia.org/proftpd/modules/mod_geoip.html) # LoadModule mod_geoip.c # # Configure server availability based on system load # (http://www.proftpd.org/docs/contrib/mod_load.html) # LoadModule mod_load.c # # Limit downloads to a multiple of upload volume (see README.ratio) # LoadModule mod_ratio.c # # Rewrite FTP commands sent by clients on-the-fly, # using regular expression matching and substitution # (http://www.proftpd.org/docs/contrib/mod_rewrite.html) # LoadModule mod_rewrite.c # # Support for the SSH2, SFTP, and SCP protocols, for secure file transfer over # an SSH2 connection (http://www.castaglia.org/proftpd/modules/mod_sftp.html) # LoadModule mod_sftp.c # # Use PAM to provide a 'keyboard-interactive' SSH2 authentication method for # mod_sftp (http://www.castaglia.org/proftpd/modules/mod_sftp_pam.html) # LoadModule mod_sftp_pam.c # # Use SQL (via mod_sql) for looking up authorized SSH2 public keys for user # and host based authentication # (http://www.castaglia.org/proftpd/modules/mod_sftp_sql.html) # LoadModule mod_sftp_sql.c # # Provide data transfer rate "shaping" across the entire server # (http://www.castaglia.org/proftpd/modules/mod_shaper.html) # LoadModule mod_shaper.c # # Support for miscellaneous SITE commands such as SITE MKDIR, SITE SYMLINK, # and SITE UTIME (http://www.proftpd.org/docs/contrib/mod_site_misc.html) # LoadModule mod_site_misc.c # # Provide an external SSL session cache using shared memory # (contrib/mod_tls_shmcache.html) # LoadModule mod_tls_shmcache.c # # Use the /etc/hosts.allow and /etc/hosts.deny files, or other allow/deny # files, for IP-based access control # (http://www.proftpd.org/docs/contrib/mod_wrap.html) #LoadModule mod_wrap.c # # Use the /etc/hosts.allow and /etc/hosts.deny files, or other allow/deny # files, as well as SQL-based access rules, for IP-based access control # (http://www.proftpd.org/docs/contrib/mod_wrap2.html) # LoadModule mod_wrap2.c # # Support module for mod_wrap2 that handles access rules stored in specially # formatted files on disk # (http://www.proftpd.org/docs/contrib/mod_wrap2_file.html) # LoadModule mod_wrap2_file.c # # Support module for mod_wrap2 that handles access rules stored in SQL # database tables (http://www.proftpd.org/docs/contrib/mod_wrap2_sql.html) # LoadModule mod_wrap2_sql.c # # Provide a flexible way of specifying that certain configuration directives # only apply to certain sessions, based on credentials such as connection # class, user, or group membership # (http://www.proftpd.org/docs/contrib/mod_ifsession.html) # LoadModule mod_ifsession.c # TLS (http://www.castaglia.org/proftpd/modules/mod_tls.html) <IfDefine TLS> TLSEngine on TLSRequired on TLSRSACertificateFile /etc/pki/tls/certs/proftpd.pem TLSRSACertificateKeyFile /etc/pki/tls/certs/proftpd.pem TLSCipherSuite ALL:!ADH:!DES TLSOptions NoCertRequest TLSVerifyClient off #TLSRenegotiate ctrl 3600 data 512000 required off timeout 300 TLSLog /var/log/proftpd/tls.log <IfModule mod_tls_shmcache.c> TLSSessionCache shm:/file=/var/run/proftpd/sesscache </IfModule> </IfDefine> # Dynamic ban lists (http://www.proftpd.org/docs/contrib/mod_ban.html) # Enable this with PROFTPD_OPTIONS=-DDYNAMIC_BAN_LISTS in /etc/sysconfig/proftpd <IfDefine DYNAMIC_BAN_LISTS> LoadModule mod_ban.c BanEngine on BanLog /var/log/proftpd/ban.log BanTable /var/run/proftpd/ban.tab # If the same client reaches the MaxLoginAttempts limit 2 times # within 10 minutes, automatically add a ban for that client that # will expire after one hour. BanOnEvent MaxLoginAttempts 2/00:10:00 01:00:00 # Allow the FTP admin to manually add/remove bans BanControlsACLs all allow user ftpadm </IfDefine> # Global Config - config common to Server Config and all virtual hosts # See: http://www.proftpd.org/docs/howto/Vhost.html <Global> # Umask 022 is a good standard umask to prevent new dirs and files # from being group and world writable Umask 022 # Allow users to overwrite files and change permissions AllowOverwrite yes <Limit ALL SITE_CHMOD> AllowAll </Limit> </Global> # A basic anonymous configuration, with an upload directory # Enable this with PROFTPD_OPTIONS=-DANONYMOUS_FTP in /etc/sysconfig/proftpd <IfDefine ANONYMOUS_FTP> <Anonymous ~ftp> User ftp Group ftp AccessGrantMsg "Anonymous login ok, restrictions apply." # We want clients to be able to login with "anonymous" as well as "ftp" UserAlias anonymous ftp # Limit the maximum number of anonymous logins MaxClients 10 "Sorry, max %m users -- try again later" # Put the user into /pub right after login #DefaultChdir /pub # We want 'welcome.msg' displayed at login, '.message' displayed in # each newly chdired directory and tell users to read README* files. DisplayLogin /welcome.msg DisplayChdir .message DisplayReadme README* # Cosmetic option to make all files appear to be owned by user "ftp" DirFakeUser on ftp DirFakeGroup on ftp # Limit WRITE everywhere in the anonymous chroot <Limit WRITE SITE_CHMOD> DenyAll </Limit> # An upload directory that allows storing files but not retrieving # or creating directories. <Directory uploads/*> AllowOverwrite no <Limit READ> DenyAll </Limit> <Limit STOR> AllowAll </Limit> </Directory> # Don't write anonymous accesses to the system wtmp file (good idea!) WtmpLog off # Logging for the anonymous transfers ExtendedLog /var/log/proftpd/access.log WRITE,READ default ExtendedLog /var/log/proftpd/auth.log AUTH auth </Anonymous> </IfDefine>
做一個
<IfUser USER> <Limit LOGIN> Allow 17.13.3.0/24 47.73.1.0/24 DenyAll </Limit> </IfUser>在您的 /etc/proftpd/proftpd.conf 中。
並且使用者只有來自良好的IP網路才能登錄。或者沒有所有使用者的 IfUser。
安裝防火牆可能更容易……