我有一台 Ubuntu 20.04 服务器虚拟机,它设置了静态 IP 地址,我可以使用我的普通 WiFi 通过 Putty 访问虚拟机。
但是,如果我将主机(Windows)连接到手机热点并尝试连接,它会继续失败并显示:-
Network Error: Connection timed out
我尝试了不同的手机和不同的网络提供商,但仍然出现相同的错误。
请评论有关所需 VM 的任何其他信息。
请告诉我如何解决。
答案1
小心防火墙
第一次尝试:
sudo ufw disable
如果这解决了问题,您可以执行以下操作:
sudo ufw enable
sudo ufw allow in on wlo1
sudo ufw route allow out on enp41s0
我的系统适用于:
$ sudo ufw status numbered
[ 1] Anywhere on wlo1 ALLOW IN Anywhere
[ 2] Anywhere on enp41s0 ALLOW FWD Anywhere (out)
[ 3] Anywhere (v6) on wlo1 ALLOW IN Anywhere (v6)
[ 4] Anywhere (v6) on enp41s0 ALLOW FWD Anywhere (v6) (out)
只有[ 1]
和[ 2]
是绝对必要的。
#----------------------------------------------------- 在我的系统上:
开启 WiFi 后:
ifconfig
> enp41s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
> inet 192.168.2.115 netmask 255.255.255.0 broadcast 192.168.2.255
> inet6 fe80::19b0:6542:ee4:5982 prefixlen 64 scopeid 0x20<link>
> ether 00:d8:61:9e:2b:52 txqueuelen 1000 (Ethernet)
> RX packets 46282 bytes 39478576 (39.4 MB)
> RX errors 0 dropped 4 overruns 0 frame 0
> TX packets 38257 bytes 7380268 (7.3 MB)
> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
>
> enp42s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
> ether 00:d8:61:9e:2b:53 txqueuelen 1000 (Ethernet)
> RX packets 0 bytes 0 (0.0 B)
> RX errors 0 dropped 0 overruns 0 frame 0
> TX packets 0 bytes 0 (0.0 B)
> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
>
> lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
> inet 127.0.0.1 netmask 255.0.0.0
> inet6 ::1 prefixlen 128 scopeid 0x10<host>
> loop txqueuelen 1000 (Local Loopback)
> RX packets 1981 bytes 318831 (318.8 KB)
> RX errors 0 dropped 0 overruns 0 frame 0
> TX packets 1981 bytes 318831 (318.8 KB)
> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
>
> wlo1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
> inet 192.168.2.115 netmask 255.255.255.0 broadcast 192.168.2.255
> inet6 fe80::1c39:c0d6:43bd:fcf0 prefixlen 64 scopeid 0x20<link>
> ether 38:00:25:95:18:02 txqueuelen 1000 (Ethernet)
> RX packets 50 bytes 17772 (17.7 KB)
> RX errors 0 dropped 0 overruns 0 frame 0
> TX packets 48 bytes 7067 (7.0 KB)
> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
这意味着 WiFi 热点:
- 输入来自
wlo1
- 输出是
enp42s0