加上这个后,sftp 在执行 startx 之前就会退出。

2010/7/6 higeon <[email protected]>

> 感谢dongsheng兄!
> 我在.bashrc最前面加上了
> [ -z "$PS1" ] && return
> sftp就可以登录了!
>
> 但是还是想知道这问题和我加上的那个自动startx有什么关系。
> 为什么注释掉那一段就可以登录呢?
>
>
> 2010/7/6 Dongsheng Song <[email protected]>
>
> 从日志看,是客户端不理解服务器的输出,才主动关闭的:
>>
>>
>> Jul  6 10:00:50 atom sshd[4045]: Received disconnect from 192.168.0.231:
>> 11: disconnected by user
>>
>> 你有没有试试我这个方法呢?
>>
>>
>> > 那么可以在 /root/.bashrc 开始增加:
>> > # If not running interactively, don't do anything
>> > [ -z "$PS1" ] && return
>>
>>
>> 2010/7/6 higeon <[email protected]>
>>
>>
>>> 应该跟sftp的版本没有关系。
>>> 不管我用windows下的winscp还是用linux下的sftp,root都没法连上去。
>>> 输入密码之后就得到Connection closed的信息。
>>> 我觉得一定是和.bashrc中的自动startx那段有关系。注释掉之后就可以sftp登录。
>>> 难道sftp用的是/dev/tty1?
>>>
>>> >> 在/root/.bashrc中添加了
>>>
>>> >> # Auto start X
>>> >> if [ -z "$DISPLAY" ] && [ $(tty) = /dev/tty1 ]; then
>>> >> while true
>>> >> do
>>> >> startx
>>> >> done
>>> >> fi
>>>
>>> 下面是DEBUG模式下的auth.log输出。
>>>
>>> Jul  6 10:00:43 atom sshd[4029]: debug1: Forked child 4045.
>>> Jul  6 10:00:43 atom sshd[4045]: debug1: rexec start in 5 out 5 newsock 5
>>> pipe 7 sock 8
>>> Jul  6 10:00:43 atom sshd[4045]: debug1: inetd sockets after dupping: 3,
>>> 3
>>> Jul  6 10:00:43 atom sshd[4045]: Connection from 192.168.0.231 port 46875
>>> Jul  6 10:00:43 atom sshd[4045]: debug1: Client protocol version 2.0;
>>> client software version OpenSSH_5.3p1 Debian-3ubuntu4
>>> Jul  6 10:00:43 atom sshd[4045]: debug1: match: OpenSSH_5.3p1
>>> Debian-3ubuntu4 pat OpenSSH*
>>> Jul  6 10:00:43 atom sshd[4045]: debug1: Enabling compatibility mode for
>>> protocol 2.0
>>> Jul  6 10:00:43 atom sshd[4045]: debug1: Local version string
>>> SSH-2.0-OpenSSH_5.1p1 Debian-5
>>> Jul  6 10:00:48 atom sshd[4045]: debug1: PAM: initializing for "root"
>>> Jul  6 10:00:48 atom sshd[4045]: debug1: PAM: setting PAM_RHOST to
>>> "192.168.0.231"
>>> Jul  6 10:00:48 atom sshd[4045]: debug1: PAM: setting PAM_TTY to "ssh"
>>> Jul  6 10:00:48 atom sshd[4045]: Failed none for root from 192.168.0.231
>>> port 46875 ssh2
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: PAM: password authentication
>>> accepted for root
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: do_pam_account: called
>>> Jul  6 10:00:50 atom sshd[4045]: Accepted password for root from
>>> 192.168.0.231 port 46875 ssh2
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: monitor_child_preauth: root has
>>> been authenticated by privileged process
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: PAM: establishing credentials
>>> Jul  6 10:00:50 atom sshd[4045]: pam_unix(sshd:session): session opened
>>> for user root by (uid=0)
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: Entering interactive session for
>>> SSH2.
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: server_init_dispatch_20
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: server_input_channel_open: ctype
>>> session rchan 0 win 2097152 max 32768
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: input_session_request
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: channel 0: new [server-session]
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: session_new: session 0
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: session_open: channel 0
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: session_open: session 0: link
>>> with channel 0
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: server_input_channel_open:
>>> confirm session
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: server_input_global_request:
>>> rtype [email protected] want_reply 0
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: server_input_channel_req:
>>> channel 0 request env reply 0
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: session_by_channel: session 0
>>> channel 0
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: session_input_channel_req:
>>> session 0 req env
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: server_input_channel_req:
>>> channel 0 request subsystem reply 1
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: session_by_channel: session 0
>>> channel 0
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: session_input_channel_req:
>>> session 0 req subsystem
>>> Jul  6 10:00:50 atom sshd[4045]: subsystem request for sftp
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: subsystem: exec()
>>> /usr/lib/openssh/sftp-server
>>> Jul  6 10:00:50 atom sshd[4047]: debug1: SELinux support disabled
>>> Jul  6 10:00:50 atom sshd[4047]: debug1: PAM: reinitializing credentials
>>> Jul  6 10:00:50 atom sshd[4047]: debug1: permanently_set_uid: 0/0
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: Received SIGCHLD.
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: session_by_pid: pid 4047
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: session_exit_message: session 0
>>> channel 0 pid 4047
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: session_exit_message: release
>>> channel 0
>>> Jul  6 10:00:50 atom sshd[4045]: Received disconnect from 192.168.0.231:
>>> 11: disconnected by user
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: do_cleanup
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: PAM: cleanup
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: PAM: deleting credentials
>>> Jul  6 10:00:50 atom sshd[4045]: debug1: PAM: closing session
>>> Jul  6 10:00:50 atom sshd[4045]: pam_unix(sshd:session): session closed
>>> for user root
>>>
>>>
>>>
>>> 2010/7/5 Dongsheng Song <[email protected]>
>>>
>>>> 改 LogLevel  为 VERBOSE 之后,也没有看到 sftp 的错误,看来需要改为 DEBUG。
>>>>
>>>> 根据这里的信息,似乎是你的 sftp 客户端比较旧,不能理解非交互输出的内容。
>>>> http://www.openssh.org/faq.html#2.9
>>>>
>>>> 那么可以在 /root/.bashrc 开始增加:
>>>>
>>>> # If not running interactively, don't do anything
>>>> [ -z "$PS1" ] && return
>>>>
>>>>
>>>>
>>>> 2010/7/5 higeon <[email protected]>
>>>>
>>>>> 改LogLevel为VERBOSE 之后
>>>>> 看到如下的log输出
>>>>>
>>>>> Jul  5 17:57:09 atom sshd[3789]: Connection from 192.168.0.105 port
>>>>> 49681
>>>>> Jul  5 17:57:09 atom sshd[3789]: Address 192.168.0.105 maps to
>>>>> atom.local, but this does not map back to the address - POSSIBLE
>>>>> BREAK-IN ATTEMPT!
>>>>> Jul  5 17:57:09 atom sshd[3789]: Failed none for root from
>>>>> 192.168.0.105 port 49681 ssh2
>>>>> Jul  5 17:57:30 atom sshd[3789]: Accepted password for root from
>>>>> 192.168.0.105 port 49681 ssh2
>>>>> Jul  5 17:57:30 atom sshd[3789]: pam_unix(sshd:session): session
>>>>> opened for user root by (uid=0)
>>>>> Jul  5 17:57:30 atom sshd[3789]: subsystem request for sftp
>>>>> Jul  5 17:57:30 atom sshd[3789]: Connection closed by 192.168.0.105
>>>>> Jul  5 17:57:30 atom sshd[3789]: pam_unix(sshd:session): session
>>>>> closed for user root
>>>>> Jul  5 17:57:30 atom sshd[3789]: Transferred: sent 1960, received 1424
>>>>> bytes
>>>>> Jul  5 17:57:30 atom sshd[3789]: Closing connection to 192.168.0.105
>>>>> port 49681
>>>>>
>>>>>
>>>>> 问题在哪?
>>>>>
>>>>>
>>>>> 2010/7/5 Dongsheng Song <[email protected]>:
>>>>> > 我用普通用户没有问题。
>>>>> > 你修改 sshd 的日志级别,再登录 sftp,看看 sshd 的日志报告什么问题?
>>>>> >
>>>>> > Syslog Facility AUTH
>>>>> > LogLevel VERBOSE 或 DEBUG
>>>>> >
>>>>> > tail -f /var/log/auth.log
>>>>> >
>>>>> > 2010/7/5 higeon <[email protected]>
>>>>> >>
>>>>> >> 在debian 5.04 lenny下我按照下面的方法设定了root的自动登录和自动startx。
>>>>> >> 后 来发现用root用户sftp登录登不进去。但是ssh却没问题。
>>>>> >> 我发现只要去掉root用户的.bashrc中的自动startx设定,sftp就可以正常登录。
>>>>> >>
>>>>> >> root自动登录和自动startx的设定如下:
>>>>> >>
>>>>> >> 修改/etc/inittab
>>>>> >> 把
>>>>> >> 1:2345:respawn:/sbin/getty 38400 tty1
>>>>> >> 修改为
>>>>> >> 1:2345:respawn:/sbin/rungetty tty1 --autologin root
>>>>> >>
>>>>> >> 在/root/.bashrc中添加
>>>>> >> # Auto start X
>>>>> >> if [ -z "$DISPLAY" ] && [ $(tty) = /dev/tty1 ]; then
>>>>> >> while true
>>>>> >> do
>>>>> >> startx
>>>>> >> done
>>>>> >> fi
>>>>> >>
>>>>> >> ※以上设定我参考了
>>>>> >> http://forums.debian.net/viewtopic.php?t=29333
>>>>> >>
>>>>> >> ※PermitRootLogin 设定为 yes,没有改过。
>>>>> >>
>>>>> >> 谁能帮忙解决这个问题?
>>>>> >>
>>>>> >> 谢谢!
>>>>> >
>>>>> >
>>>>>
>>>>
>>>>
>>>
>>
>

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