我有一台运行 Ubuntu 的 Nvidia Jetson。我正在尝试设置 web2py。当我在 Jetson 上使用 Chrome 时，它会显示 web2py 的“hello world”，但当我使用本地网络上另一台机器的浏览器时，它无法连接。
在 Jetson 上：
jrraines@Georgejetson:~$ nmap localhost
Starting Nmap 7.60 ( https://nmap.org ) at 2019-06-23 17:59 CDT
Nmap scan report for localhost (127.0.0.1)
Host is up (0.00032s latency).
Not shown: 995 closed ports
PORT STATE SERVICE
22/tcp open ssh
111/tcp open rpcbind
3389/tcp open ms-wbt-server
5900/tcp open vnc
8000/tcp open http-alt
Nmap done: 1 IP address (1 host up) scanned in 0.17 seconds
jrraines@Georgejetson:~$
jrraines@Georgejetson:~$ sudo netstat -tulpn
[sudo] password for jrraines:
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:37861 0.0.0.0:* LISTEN 4451/containerd
tcp 0 0 127.0.0.1:5900 0.0.0.0:* LISTEN 9581/vino-server
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN 3578/rpcbind
tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN 3563/systemd-resolv
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 4640/sshd
tcp 0 0 127.0.0.1:8000 0.0.0.0:* LISTEN 9169/python3
tcp 0 0 127.0.0.1:2947 0.0.0.0:* LISTEN 1/init
tcp6 0 0 ::1:5900 :::* LISTEN 9581/vino-server
tcp6 0 0 :::111 :::* LISTEN 3578/rpcbind
tcp6 0 0 :::22 :::* LISTEN 4640/sshd
tcp6 0 0 ::1:3350 :::* LISTEN 4632/xrdp-sesman
tcp6 0 0 :::3389 :::* LISTEN 4816/xrdp
tcp6 0 0 ::1:2947 :::* LISTEN 1/init
udp 0 0 224.0.0.251:5353 0.0.0.0:* 9858/chromium-brows
udp 0 0 224.0.0.251:5353 0.0.0.0:* 9819/chromium-brows
udp 0 0 0.0.0.0:5353 0.0.0.0:* 3726/avahi-daemon:
udp 0 0 127.0.0.53:53 0.0.0.0:* 3563/systemd-resolv
udp 0 0 0.0.0.0:67 0.0.0.0:* 4404/dhcpd
udp 0 0 0.0.0.0:68 0.0.0.0:* 5501/dhclient
udp 0 0 0.0.0.0:38998 0.0.0.0:* 4404/dhcpd
udp 0 0 0.0.0.0:111 0.0.0.0:* 3578/rpcbind
udp 0 0 0.0.0.0:37184 0.0.0.0:* 3726/avahi-daemon:
udp 0 0 0.0.0.0:786 0.0.0.0:* 3578/rpcbind
udp6 0 0 :::5353 :::* 3726/avahi-daemon:
udp6 0 0 :::111 :::* 3578/rpcbind
udp6 0 0 :::53822 :::* 3726/avahi-daemon:
udp6 0 0 :::786 :::* 3578/rpcbind
udp6 0 0 :::5032 :::* 4404/dhcpd
在网络上的 Raspberry Pi 上：
pi@rpi-HRA:~ $ sudo nmap 192.168.0.125
Starting Nmap 6.47 ( http://nmap.org ) at 2019-06-24 10:48 UTC
Nmap scan report for 192.168.0.125
Host is up (0.00070s latency).
Not shown: 997 closed ports
PORT STATE SERVICE
22/tcp open ssh
111/tcp open rpcbind
3389/tcp open ms-wbt-server
MAC Address: 00:E0:4C:68:00:F8 (Realtek Semiconductor)
Nmap done: 1 IP address (1 host up) scanned in 35.14 seconds
当我看到这个时，我意识到我也从来没有能够使用 VNC 连接到 Jetson。