我试图从Ubuntu服务器远程运行X. 我已经在远程机器上安装了gedit ，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.
我用另一个程序试过了
adam@myserver $ filezilla Error: Unable to initialize gtk, is DISPLAY set properly?
这里是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，这些程序没有详细的标志，所以这是我所有的信息。
怎么了？ 甚至有可能在Ubuntu服务器上运行远程X？
就在最后一行：
debug1: Remote: No xauth program; cannot forward with spoofing.
除gedit之外，您还需要安装一个xauth软件包。 如果Ubuntu服务器没有安装X Windows系统（可能考虑到你必须手动安装Gedit），这显然不存在。
确保你在服务器的sshd_config中允许它。
X11Forwarding yes
此外，请确保您的客户端已configuration。 如果您使用的是OSX，请确保X11正在运行，否则检查您的本地〜/ .Xauthority是否为chmod 600，并且客户端上的ssh_config是否configuration正确。
Host * ForwardX11 yes ForwardAgent no
检查是否在客户端安装了xorg-x11-xauth 。 您可以通过运行以下命令来validation这一点：
$ ssh -X -l root <USERNAME> # echo $DISPLAY localhost:10.0