我正在尝试sftp
使用sshfs
以下引发错误的命令将连接安装到文件夹中。
~$ sshfs admin@example.com:/ testfo
remote host has disconnected
如果我SSH进入系统并使用重复该命令,则会发生相同的错误localhost
。该命令还可以与另一台计算机一起使用,因此问题出在服务器上。
~$ cat /var/log/auth.log
[...]
May 24 22:49:43 example sshd[20095]: Accepted publickey for admin from 24.111.222.33 port 47086 ssh2: RSA ad:xx:6e:xx:14:xx:bd:b5:xx:cb:66:xx:xx:xx:a3:ac
May 24 22:49:43 example sshd[20095]: pam_unix(sshd:session): session opened for user admin by (uid=0)
May 24 22:49:43 example systemd-logind[812]: Removed session 60.
May 24 22:49:43 example systemd-logind[812]: New session 61 of user admin.
May 24 22:49:44 example sshd[20143]: Received disconnect from 24.203.164.45: 11: disconnected by admin
May 24 22:49:44 example sshd[20095]: pam_unix(sshd:session): session closed for user admin
该~/.ssh
目录归管理员所有,因为我将其视为针对类似问题的调试尝试。
其他信息,以供将来参考:
问题不在于SSH本身,而在于SFTP。这可以通过SSH连接正常运行但SFTP始终失败的事实来证明。尝试SFTP会导致Received unexpected end-of-file from SFTP server
该问题不涉及到输出字符串登录脚本(如~/.bashrc
)。
所有用户(包括root用户)都存在该问题。
这是我的sshd配置(/etc/ssh/sshd_config
):
# 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
HostKey /etc/ssh/ssh_host_ed25519_key
#Privilege Separation is turned on for security
UsePrivilegeSeparation yes
# Lifetime and size of ephemeral version 1 server key
KeyRegenerationInterval 3600
ServerKeyBits 1024
# Logging
SyslogFacility AUTH
LogLevel INFO
# Authentication:
LoginGraceTime 120
PermitRootLogin yes
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 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 sftp-server
# 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 yes
sftp-server
软件包已安装。(sudo apt-get install openssh-sftp-server
)
Received unexpected end-of-file from SFTP server
sftp
给不同的用户吗?3)您sshd_config
在服务器上的外观如何?4)你~/.bashrc
看起来怎么样?
which sftp-server
。子系统应为Subsystem sftp /usr/lib/openssh/sftp-server
。你已经sftp-server
安装好了吗?apt-get install openssh-sftp-server
。
sftp
直接到达那里吗?~/.bashrc
服务器主目录中的内容或其他启动文件是什么?