CentOS / ftp
View Outline
ftp 構築メモ。
- 参考にしたサイト
- http://kajuhome.com/vsftpd.shtml
実際のところ、このページはインストールメモなので、上記サイトの方が数倍丁寧に説明されています。
パッケージのダウンロード
# yum -y install vsftpd Setting up Install Process Setting up repositories Reading repository metadata in from local files Parsing package install arguments Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Downloading header for vsftpd to pack into transaction set. vsftpd-2.0.1-5.EL4.5.i386 100% |=========================| 13 kB 00:00 ---> Package vsftpd.i386 0:2.0.1-5.EL4.5 set to be updated --> Running transaction check Dependencies Resolved ============================================================================= Package Arch Version Repository Size ============================================================================= Installing: vsftpd i386 2.0.1-5.EL4.5 base 121 k Transaction Summary ============================================================================= Install 1 Package(s) Update 0 Package(s) Remove 0 Package(s) Total download size: 121 k Downloading Packages: (1/1): vsftpd-2.0.1-5.EL4 100% |=========================| 121 kB 00:01 Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing: vsftpd ######################### [1/1] Installed: vsftpd.i386 0:2.0.1-5.EL4.5 Complete! #
/etc/vsftpd/vsftpd.conf を編集
# Example config file /etc/vsftpd/vsftpd.conf # # The default compiled in settings are fairly paranoid. This sample file # loosens things up a bit, to make the ftp daemon more usable. # Please see vsftpd.conf.5 for all compiled in defaults. # # READ THIS: This example file is NOT an exhaustive list of vsftpd options. # Please read the vsftpd.conf.5 manual page to get a full idea of vsftpd's # capabilities. # # Allow anonymous FTP? (Beware - allowed by default if you comment this out). anonymous_enable=NO # # Uncomment this to allow local users to log in. local_enable=YES # # Uncomment this to enable any form of FTP write command. write_enable=YES # # Default umask for local users is 077. You may wish to change this to 022, # if your users expect that (022 is used by most other ftpd's) local_umask=022 # # Uncomment this to allow the anonymous FTP user to upload files. This only # has an effect if the above global write enable is activated. Also, you will # obviously need to create a directory writable by the FTP user. #anon_upload_enable=YES # # Uncomment this if you want the anonymous FTP user to be able to create # new directories. #anon_mkdir_write_enable=YES # # Activate directory messages - messages given to remote users when they # go into a certain directory. dirmessage_enable=YES # # Activate logging of uploads/downloads. xferlog_enable=YES # # Make sure PORT transfer connections originate from port 20 (ftp-data). connect_from_port_20=YES # # If you want, you can arrange for uploaded anonymous files to be owned by # a different user. Note! Using "root" for uploaded files is not # recommended! #chown_uploads=YES #chown_username=whoever # # You may override where the log file goes if you like. The default is shown # below. #xferlog_file=/var/log/vsftpd.log # # If you want, you can have your log file in standard ftpd xferlog format xferlog_std_format=YES # # You may change the default value for timing out an idle session. idle_session_timeout=600 # # You may change the default value for timing out a data connection. data_connection_timeout=120 # # It is recommended that you define on your system a unique user which the # ftp server can use as a totally isolated and unprivileged user. #nopriv_user=ftpsecure # # Enable this and the server will recognise asynchronous ABOR requests. Not # recommended for security (the code is non-trivial). Not enabling it, # however, may confuse older FTP clients. #async_abor_enable=YES # # By default the server will pretend to allow ASCII mode but in fact ignore # the request. Turn on the below options to have the server actually do ASCII # mangling on files when in ASCII mode. # Beware that turning on ascii_download_enable enables malicious remote parties # to consume your I/O resources, by issuing the command "SIZE /big/file" in # ASCII mode. # These ASCII options are split into upload and download because you may wish # to enable ASCII uploads (to prevent uploaded scripts etc. from breaking), # without the DoS risk of SIZE and ASCII downloads. ASCII mangling should be # on the client anyway.. ascii_upload_enable=YES ascii_download_enable=YES # # You may fully customise the login banner string: ftpd_banner=Welcome to CentOS FTP service. # # You may specify a file of disallowed anonymous e-mail addresses. Apparently # useful for combatting certain DoS attacks. #deny_email_enable=YES # (default follows) #banned_email_file=/etc/vsftpd.banned_emails # # You may specify an explicit list of local users to chroot() to their home # directory. If chroot_local_user is YES, then this list becomes a list of # users to NOT chroot(). #chroot_list_enable=YES # (default follows) #chroot_list_file=/etc/vsftpd.chroot_list # # You may activate the "-R" option to the builtin ls. This is disabled by # default to avoid remote users being able to cause excessive I/O on large # sites. However, some broken FTP clients such as "ncftp" and "mirror" assume # the presence of the "-R" option, so there is a strong case for enabling it. ls_recurse_enable=YES pam_service_name=vsftpd userlist_enable=YES #enable for standalone mode listen=YES tcp_wrappers=YES use_localtime=YES
chroot_list_enable
指定したユーザをホームパスより上位に移動させない設定
chroot_list_enable=YES
chroot_list_file
ホームパスより上位に移動させないユーザリスト
書式は /etc/vsftpd.user_list と同じ
chroot_list_file=/etc/vsftpd.chroot_list
userlist_enable
指定したユーザをログインさせない、または指定したユーザしかログインさせない
/etc/vsftpd.user_list
# vsftpd userlist # If userlist_deny=NO, only allow users in this file # If userlist_deny=YES (default), never allow users in this file, and # do not even prompt for a password. # Note that the default vsftpd pam config also checks /etc/vsftpd.ftpusers # for users that are denied. root bin daemon adm lp sync shutdown halt mail news uucp operator games nobody
/etc/hosts.allow
接続を許可するホストを指定する。
vsftpd : 192.168.0. 127.0.0.1
/etc/hosts.deny
接続を許可しないホストを指定する。
vsftpd : ALL
___
init.d の起動設定を変更
# chkconfig --list vsftpd vsftpd 0:off 1:off 2:off 3:off 4:off 5:off 6:off # chkconfig vsftpd on # chkconfig --list vsftpd vsftpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off
システムの再起動またはデーモンの起動
# reboot
または
# /etc/rc.d/init.d/vsftpd start vsftpd 用の vsftpd を起動中: [ OK ]
