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通过 SSH 连接到 Ubuntu 服务器

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通过 SSH 连接到 Ubuntu 服务器

我正在尝试从 Ubuntu 服务器远程运行 X。我已gedit在远程计算机上安装并尝试：

adam@laptop $ ssh -X adam@myserver
adam@myserver $ gedit
cannot open display: 
Run 'gedit --help' to see a full list of available command line options.

我已经用另一个程序尝试过：

adam@myserver $ filezilla
Error: Unable to initialize gtk, is DISPLAY set properly?

这是 SSH 日志，使用ssh -X -v：

OpenSSH_5.3p1 Debian-3ubuntu5, OpenSSL 0.9.8k 25 Mar 2009
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to [Server ip and name omitted, Adam] port 22.
debug1: Connection established.
debug1: identity file /home/adam/.ssh/identity type -1
debug1: identity file /home/adam/.ssh/id_rsa type 1
debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048
debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048
debug1: identity file /home/adam/.ssh/id_dsa type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_4.7p1 Debian-8ubuntu1.2
debug1: match: OpenSSH_4.7p1 Debian-8ubuntu1.2 pat OpenSSH_4*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.3p1 Debian-3ubuntu5
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host [Server ip and name omitted, Adam] is known and matches the RSA host key.
debug1: Found key in /home/adam/.ssh/known_hosts:292
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Offering public key: /home/adam/.ssh/id_rsa
debug1: Server accepts key: pkalg ssh-rsa blen 277
debug1: Authentication succeeded (publickey).
debug1: channel 0: new [client-session]
debug1: Entering interactive session.
debug1: Requesting X11 forwarding with authentication spoofing.
debug1: Sending environment.
debug1: Sending env LANG = en_US.utf8
debug1: Remote: No xauth program; cannot forward with spoofing.
Linux sftp-waze 2.6.24-10-xen #1 SMP Tue Sep 8 19:06:53 UTC 2009 i686

不幸的是，这些程序没有详细程度标志，所以这就是我所掌握的全部信息。

怎么了？在 ubuntu 服务器上运行远程 X 可行吗？

答案1

它就在最后一行：

debug1: Remote: No xauth program; cannot forward with spoofing.

除了 gedit，您还需要安装 xauth 包。如果 Ubuntu 服务器未安装 X Windows 系统（可能因为您必须手动安装 Gedit），则显然不存在该包。

答案2

确保您在服务器上的 sshd_config 中允许它。

X11Forwarding yes

另外，请确保您的客户端已配置。如果您使用的是 OSX，请确保 X11 正在运行，否则请检查您的本地 ~/.Xauthority 是否为 chmod 600，以及客户端上的 ssh_config 是否配置正确。

Host *
ForwardX11 yes
ForwardAgent no

检查您是否已xorg-x11-xauth在客户端上安装。您可以通过运行以下命令来验证这一点：

$ ssh -X -l root <USERNAME>
# echo $DISPLAY
  localhost:10.0

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