chrooted sftp (Debian Lenny)

# Package generated configuration file    
# See the sshd(8) 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                                           
#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   

RSAAuthentication yes
PubkeyAuthentication yes
#AuthorizedKeysFile     %h/.ssh/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 yes                             

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

# GSSAPI options
#GSSAPIAuthentication no
#GSSAPICleanupCredentials yes

X11Forwarding no
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

UsePAM yes

AllowUsers www-data

Match User www-data
        ChrootDirectory /var/www
        ForceCommand /usr/lib/openssh/sftp-server

Port 22
Protocol 2
PermitRootLogin no
PubkeyAuthentication yes
AuthorizedKeysFile	.ssh/authorized_keys
HostbasedAuthentication no
PasswordAuthentication no
PermitEmptyPasswords no
UsePAM yes
GatewayPorts yes
Subsystem sftp internal-sftp
Match User someuser
    X11Forwarding no
    AllowTcpForwarding no
    ChrootDirectory %h
    ForceCommand internal-sftp

$ ls -ld /home/someuser/
drwxr-x--- 9 root someusergroup 4096 2009-09-25 03:17 /home/someuser/

#Subsystem sftp /usr/lib/openssh/sftp-server
Subsystem sftp internal-sftp

Match User www-data
        ChrootDirectory %h
#       ForceCommand /usr/lib/openssh/sftp-server
        ForceCommand internal-sftp