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Chroot 目录中的 Subversion 和 sftp 访问

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Chroot 目录中的 Subversion 和 sftp 访问

我不确定这是否可行。我正在运行 Ubuntu Server 11.10，并在 /home/svn 中设置了 Subversion 存储库，并且在 /home/ftp 中有一个 sftp 文件夹。

我的用户可以使用 ssh 密钥从客户端访问每个文件。我发现使用 ftp 客户端时他们可以浏览整个服务器，因此我将以下几行添加到我的 sshd_config 文件中，以便将我的用户限制在 ftp 文件夹中。

Match group workers
    ChrootDirectory /home/ftp
    X11Forwarding no
    AllowTcpForwarding no
    ForceCommand internal-sftp

问题是他们无法访问 subversion 存储库。有没有什么办法可以实现这样的功能？

谢谢。

这是 sshd_config 文件

# Package generated configuration file
# See the sshd_config(5) manpage for details

# What ports, IPs and protocols we listen for
Port 22 
# Use these options to restrict which interfaces/protocols sshd will bind to
#ListenAddress ::
#ListenAddress 0.0.0.0
Protocol 2
# HostKeys for protocol version 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
#Privilege Separation is turned on for security
UsePrivilegeSeparation yes

# Lifetime and size of ephemeral version 1 server key
KeyRegenerationInterval 3600
ServerKeyBits 768

# Logging
SyslogFacility AUTH
LogLevel INFO

# Authentication:
LoginGraceTime 120
PermitRootLogin no
StrictModes yes
AllowGroups sshlogin

RSAAuthentication yes
PubkeyAuthentication yes
AuthorizedKeysFile  /home/.ssh/%u/authorized_keys

# Don't read the user's ~/.rhosts and ~/.shosts files
IgnoreRhosts yes
# For this to work you will also need host keys in /etc/ssh_known_hosts
RhostsRSAAuthentication no
# similar for protocol version 2
HostbasedAuthentication no
# Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication
#IgnoreUserKnownHosts yes

# To enable empty passwords, change to yes (NOT RECOMMENDED)
PermitEmptyPasswords no

# Change to yes to enable challenge-response passwords (beware issues with
# some PAM modules and threads)
ChallengeResponseAuthentication no

# Change to no to disable tunnelled clear text passwords
PasswordAuthentication no

# Kerberos options
#KerberosAuthentication no
#KerberosGetAFSToken no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes

# GSSAPI options
#GSSAPIAuthentication no
#GSSAPICleanupCredentials yes

X11Forwarding yes
X11DisplayOffset 10
PrintMotd no
PrintLastLog yes
TCPKeepAlive yes
#UseLogin no

#MaxStartups 10:30:60
Banner /etc/issue.net

# Allow client to pass locale environment variables
AcceptEnv LANG LC_*

#Subsystem sftp /usr/lib/openssh/sftp-server -u 0022

# Set this to 'yes' to enable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication.  Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
UsePAM no

Subsystem sftp internal-sftp -u 0022
Match group workers
    ChrootDirectory /home/ftp
    X11Forwarding no
    AllowTcpForwarding no
    ForceCommand internal-sftp

答案1

这是因为您将 sftp 用户 chrooted 到 /home/ftp，所以他们的根文件夹 (/) 将位于该文件夹中，并且其中的所有文件/文件夹都将可用。

问题是 /home/svn 与 /home/ftp 处于同一级别，无法访问。为了让用户可以访问它，您可以将 svn 文件夹设为 /home/ftp 子文件夹。或者您可以尝试将 svn 文件夹绑定为 /home/ftp 的子文件夹：

mount -o bind /sourcefolder /destinationfolder/

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