甲骨文：此实例无响应。请确认是否正确配置了操作系统和网络

开发调优
1

arm机器，我关机后关了下传输中加密，然后再开机就连不上网了

vnc能进
进去ping 8.8.8.8 提示 connect: Network is unreachable

网卡信息如下

source /etc/network/interfaces.d/*

The loopback network interface

auto lo
iface lo inet loopback

The primary network interface

allow-hotplug enp0s3
iface enp0s3 inet static
address 10.0.0.177/24
gateway 10.0.0.1
# dns-* options are implemented by the resolvconf package, if installed
dns-nameservers 8.8.8.8
dns-search debian
~
~
~
~
~
~
root@debian:/etc/network# ping 8.8.8.8
connect: Network is unreachable
root@debian:/etc/network# sudo systemctl restart networking
root@debian:/etc/network# ping 8.8.8.8
connect: Network is unreachable
root@debian:/etc/network#

2 个赞
2

看着是个内网IP地址，不过我没有甲骨文机器所以也不确定这个有没有影响，一般来说vps该有个外网IP地址绑定在机器上才对

ip a

没有IP地址的话应该是网卡没启用，手动ifup把网卡启用一下即可。

3

看下nat链

4

看了下其他正常的机器，都是配的内网地址

5

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp0s6: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 02:00:17:00:49:d7 brd ff:ff:ff:ff:ff:ff

6

怎么看？

7

我现在发现一个怪异的点是，ip addr看网卡是enp0s6 但是在interfaces里是enp0s3
root@debian:~# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp0s6: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 02:00:17:00:49:d7 brd ff:ff:ff:ff:ff:ff
root@debian:~# cat /etc/network/interfaces

This file describes the network interfaces available on your system

and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

The loopback network interface

auto lo
iface lo inet loopback

The primary network interface

allow-hotplug enp0s3
iface enp0s3 inet static
address 10.0.0.175/24
gateway 10.0.0.1
# dns-* options are implemented by the resolvconf package, if installed
dns-nameservers 8.8.8.8
dns-search debian
root@debian:~#

8

iptables -L -n -t nat

9

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