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从 ssh 客户端启动 vino vnc 服务器

tag-icon • tag-icon ssh vnc xserver vino
从 ssh 客户端启动 vino vnc 服务器

首先：我整天都在谷歌搜索，并在不同的论坛上尝试了几种建议，但都没有成功

问题：我无法通过 ssh 在远程计算机上启动 vnc 服务器附加信息：

  • 主机：Ubuntu 12.04
  • 客户端：VritualBox 中的 Ubuntu 14.04
  • 我没有远程机器的物理访问权限

这有效：

ssh -Y user@hostname

当我检查显示屏时，我得到了这个：

$ echo $DISPLAY
localhost:10.0

现在我启动 vnc 服务器：/usr/lib/vino/vino-server

=> 这有效，但是当我连接到 vnc 时，我看到我自己的屏幕（来自 ssh 客户端）而不是远程屏幕

它似乎localhost:10.0占用了我的本地屏幕。我说得对吗？

我也尝试了这个，因为我想要远程屏幕：

/usr/lib/vino/vino-server --display :0.0

其结果如下：

$ /usr/lib/vino/vino-server --display 0.0

(process:6843): Gtk-WARNING **: Locale not supported by C library.
    Using the fallback 'C' locale.
Cannot open display: 0.0
Run 'vino-server --help' to see a full list of available command line options

为什么无法打开显示0.0？

答案1

在另一个论坛 forum.developer.nvidia.com 上，“nekokeitai”写了一些对我有用的东西。这些命令可以通过 ssh 在远程 Ubuntu 18.04 PC 上使用：

安装 vino：

sudo apt install vino

找到连接的 UUID，并将它们作为逗号分隔列表放在最后一行配置的方括号内。不过，我只尝试在单引号内使用一个 UUID：

nmcli connection show

配置vino：

gsettings set org.gnome.Vino prompt-enabled false
gsettings set org.gnome.Vino require-encryption false
dconf write /org/gnome/settings-daemon/plugins/sharing/vino-server/enabled-connections "['']"

开始 vino：

export DISPLAY=:0 && /usr/lib/vino/vino-server

现在，在本地 PC 上使用带有 VNC 协议的 remmina 连接到远程 PC。

答案2

下面是我用来将 vino 安装到遥控器上的一些脚本。

在主安装脚本中，我将仅包含调用 vnc_access 脚本的代码（该脚本位于子目录“vnc”中，但将其更改为放置第二个脚本的任何位置。

if [ ! -z "$install_vnc" ] ; then
    user_password='password'
    vnc_password='password'
    vnc_script="${BASH_SOURCE%/*}/vnc/vnc_access.sh"

    printf '\n\tSetting up vino-server on host...\n' >&2

    ssh $host_user_name@$host_address \
        "bash -s" < "$vnc_script" $user_password "'$vnc_password'"

    printf '\n\tDone sending vnc to host.\n' >&2
fi

这是 vnc_access.sh 脚本

#!/bin/bash
#
# Tools to enable and configure vino for vnc access

# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# parse arguments
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
user_password=$1
vino_password=$2

# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# initialize values
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vino_password_binary="$(echo -n ${vino_password} | base64)"

declare -A settings
settings[alternative-port]="uint16 5900"
settings[authentication-methods]="['vnc']"
settings[disable-background]=false
settings[disable-xdamage]=false
settings[enabled]=true
# enum 'never' 'always' 'client'
settings[icon-visibility]="'client'"
settings[lock-screen-on-disconnect]=false
settings[mailto]="''"
settings[network-interface]="''"
settings[notify-on-connect]=true
settings[prompt-enabled]=false
settings[require-encryption]=false
settings[use-alternative-port]=false
settings[use-upnp]=false
settings[view-only]=false
settings[vnc-password]="'$vino_password_binary'"

# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# main
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

# We need to have sudo enabled to do many of these tasks, 
#  this is a bit of a hack, but it gets the job done.
printf "Enabling sudo privileges...\n" >&2
echo $user_password | sudo -S whoami >/dev/null
printf "\n" >&2

# If vino is not installed, install it
if [ -z "$(dpkg -l | egrep -i 'vino')" ] ; then
    printf "Installing vino...\n" >&2
    sudo apt-get update
    sudo apt-get install -y vino
fi

# Make sure we are performing these operations of the remotes display.
printf "Forwarding X org Display...\n" >&2
export DISPLAY=:0
sudo xhost +

# Loop through settings and configure vino.
for setting in "${!settings[@]}" ; do
    current_value="$(gsettings get org.gnome.Vino "$setting")"
    to_value="${settings[$setting]}"
    if [[ "$current_value" != "$to_value" ]] ; then
        printf "changing Vino's ${setting} from ${current_value} to ${settings[$setting]}\n" >&2
        DISPLAY=:0 sudo gsettings set org.gnome.Vino "$setting" ${settings[$setting]}
    fi
done

# Vino requires a reboot to work. If someone can find out how to do this with
#  out rebooting or logging out, let me know.
sudo reboot

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