X11转发请求在通道0上失败

Question

$ ssh -Xvv remote_host输出

....
debug1: channel 0: new [client-session]
debug2: channel 0: send open
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: pledge: exec
debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0
debug1: Remote: /home/user/.ssh/authorized_keys:8: key options: agent-forwarding port-forwarding pty user-rc x11-forwarding
debug1: Remote: /home/user/.ssh/authorized_keys:8: key options: agent-forwarding port-forwarding pty user-rc x11-forwarding
debug2: channel_input_open_confirmation: channel 0: callback start
debug2: x11_get_proto: /usr/bin/xauth  list unix:16.0 2>/dev/null
debug1: Requesting X11 forwarding with authentication spoofing.
debug2: channel 0: request x11-req confirm 1
debug2: fd 3 setting TCP_NODELAY
debug2: client_session2_setup: id 0
debug2: channel 0: request pty-req confirm 1
debug1: Sending environment.
debug1: Sending env LANG = en_US.UTF-8
debug2: channel 0: request env confirm 0
debug2: channel 0: request shell confirm 1
debug2: channel_input_open_confirmation: channel 0: callback done
debug2: channel 0: open confirm rwindow 0 rmax 32768
debug2: channel_input_status_confirm: type 100 id 0
X11 forwarding request failed on channel 0
debug2: channel_input_status_confirm: type 99 id 0
debug2: PTY allocation request accepted on channel 0
debug2: channel 0: rcvd adjust 2097152
debug2: channel_input_status_confirm: type 99 id 0
debug2: shell request accepted on channel 0

也试过-Y。不起作用。

我确认服务器端允许X11转发。$grep X11 /etc/ssh/sshd_config给

X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes

我已经搜索了其他与X11 forwarding request failed on channel 0相关的帖子，没有发现任何帮助信息。

Answer 1

我在Devuan (没有系统的Debian叉子)上也有类似的问题。

我找到了关于Arch Wiki的一种解法。

编辑/etc/ssh/sshd_config (在服务器端)并设置：

AddressFamily inet

默认情况下是AddressFamily any，但这似乎没有提供inet (ipv4)套接字。

在我的系统中，我在/var/log/auth.log中注意到：

sshd[9184]: error: Failed to allocate internet-domain X11 display socket.

在对sshd_config和service ssh restart的上述更改之后，X11转发为我工作。

Answer 2

通常，当我看到问题标题的错误消息时，这意味着服务器没有安装包含xauth命令的包，或者sshd守护进程由于其他原因不能使用xauth命令。