大多数服务器都使用UsePam运行,除了这个,

它在sshd上缺乏pam支持.

root@linserv9:~# ldd /usr/sbin/sshd 
    linux-vdso.so.1 =>  (0x00007fff621fe000)
    libutil.so.1 => /lib/libutil.so.1 (0x00007fd759d0b000)
    libz.so.1 => /usr/lib/libz.so.1 (0x00007fd759af4000)
    libnsl.so.1 => /lib/libnsl.so.1 (0x00007fd7598db000)
    libcrypto.so.0.9.8 => /usr/lib/libcrypto.so.0.9.8 (0x00007fd75955b000)
    libcrypt.so.1 => /lib/libcrypt.so.1 (0x00007fd759323000)
    libc.so.6 => /lib/libc.so.6 (0x00007fd758fc1000)
    libdl.so.2 => /lib/libdl.so.2 (0x00007fd758dbd000)
    /lib64/ld-linux-x86-64.so.2 (0x00007fd759f0e000)

我安装了这个包

root@linserv9:~# dpkg -l|grep -E 'pam|ssh'
ii  denyhosts                             2.6-2.1                      an utility to help sys admins thwart ssh hac
ii  libpam-modules                        0.99.7.1-5ubuntu6.1          Pluggable Authentication Modules for PAM
ii  libpam-runtime                        0.99.7.1-5ubuntu6.1          Runtime support for the PAM library
ii  libpam-ssh                            1.91.0-9.2                   enable SSO behavior for ssh and pam
ii  libpam0g                              0.99.7.1-5ubuntu6.1          Pluggable Authentication Modules library
ii  libpam0g-dev                          0.99.7.1-5ubuntu6.1          Development files for PAM
ii  openssh-blacklist                     0.1-1ubuntu0.8.04.1          list of blacklisted OpenSSH RSA and DSA keys
ii  openssh-client                        1:4.7p1-8ubuntu1.2           secure shell client,an rlogin/rsh/rcp repla
ii  openssh-server                        1:4.7p1-8ubuntu1.2           secure shell server,an rshd replacement
ii  quest-openssh                         5.2p1_q13-1                  Secure shell
root@linserv9:~#

我做错了什么？

谢谢.

编辑：

root@linserv9:~# cat  /etc/pam.d/sshd 
# PAM configuration for the Secure Shell service

# Read environment variables from /etc/environment and
# /etc/security/pam_env.conf.
auth       required     pam_env.so # [1]
# In Debian 4.0 (etch),locale-related environment variables were moved to
# /etc/default/locale,so read that as well.
auth       required     pam_env.so envfile=/etc/default/locale

# Standard Un*x authentication.
@include common-auth

# Disallow non-root logins when /etc/nologin exists.
account    required     pam_nologin.so

# Uncomment and edit /etc/security/access.conf if you need to set complex
# access limits that are hard to express in sshd_config.
# account  required     pam_access.so

# Standard Un*x authorization.
@include common-account

# Standard Un*x session setup and teardown.
@include common-session

# Print the message of the day upon successful login.
session    optional     pam_motd.so # [1]

# Print the status of the user's mailBox upon successful login.
session    optional     pam_mail.so standard noenv # [1]

# Set up user limits from /etc/security/limits.conf.
session    required     pam_limits.so

# Set up SELinux capabilities (need modified pam)
# session  required     pam_selinux.so multiple

# Standard Un*x password updating.
@include common-password

Edit2：UsePAM是失败

使用此配置,ssh无法启动：

root@linserv9:/home/admmarc# cat /etc/ssh/sshd_config |grep -vE "^[ \t]*$|^#"
Port 22
Protocol 2
ListenAddress 0.0.0.0
RSAAuthentication yes
PubkeyAuthentication yes
AuthorizedKeysFile      .ssh/authorized_keys
ChallengeResponseAuthentication yes
UsePAM yes
Subsystem       sftp    /usr/lib/sftp-server
root@linserv9:/home/admmarc#

它给出的错误如下

root@linserv9:/home/admmarc# /etc/init.d/ssh start
 * Starting OpenBSD Secure Shell server sshd
/etc/ssh/sshd_config: line 75: Bad configuration option: UsePAM
/etc/ssh/sshd_config: terminating,1 bad configuration options
   ...fail!
root@linserv9:/home/admmarc#