저는 데스크탑 환경으로 Cinnamon을 사용하여 Ubuntu 18.04.4 LTS를 실행하고 있습니다.
어제 이더넷 연결이 끊어져서 더 이상 인터넷을 사용할 수 없습니다. Chromium에서 오류는 DNS_PROBE_FINISHED_NO_INTERNET입니다. 그러나 네트워크 관리자에서는 여전히 "유선 연결 1"에 연결되어 있습니다.
문제가 있는 곳을 진단하려면 어떤 단계를 수행해야 합니까? 더 많은 정보를 제공해야 합니까? 저는 네트워킹에 익숙하지 않습니다. 저는 현재 모바일 모뎀을 대체용으로 사용하고 있습니다.
감사해요!
유용할 수 있는 다양한 명령의 출력:
ifconfig - enp10s0은 문제가 있는 이더넷입니다.
enp10s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.7 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fd80::d95c:db70:d668:7afc prefixlen 64 scopeid 0x0<global>
inet6 fd80::2de8:4bea:acf9:bc9a prefixlen 64 scopeid 0x0<global>
inet6 fe80::2618:40ca:20d3:6055 prefixlen 64 scopeid 0x20<link>
ether 70:85:c2:55:07:64 txqueuelen 1000 (Ethernet)
RX packets 2134 bytes 163311 (163.3 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1895 bytes 168216 (168.2 KB)
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 2864 bytes 234021 (234.0 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2864 bytes 234021 (234.0 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
노선
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default _gateway 0.0.0.0 UG 20100 0 0 enp10s0
link-local 0.0.0.0 255.255.0.0 U 1000 0 0 enp10s0
192.168.1.0 0.0.0.0 255.255.255.0 U 100 0 0 enp10s0
핑 -c4 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
From 192.168.1.1 icmp_seq=1 Destination Net Unreachable
From 192.168.1.1 icmp_seq=2 Destination Net Unreachable
From 192.168.1.1 icmp_seq=3 Destination Net Unreachable
From 192.168.1.1 icmp_seq=4 Destination Net Unreachable
--- 8.8.8.8 ping statistics ---
4 packets transmitted, 0 received, +4 errors, 100% packet loss, time 3035ms
sudo ethtool enp10s0
Settings for enp10s0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supported pause frame use: No
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Link partner advertised pause frame use: Symmetric
Link partner advertised auto-negotiation: Yes
Link partner advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Port: MII
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000033 (51)
drv probe ifdown ifup
Link detected: yes
IP 경로
default via 192.168.1.1 dev enp10s0 proto dhcp metric 20100
169.254.0.0/16 dev enp10s0 scope link metric 1000
192.168.1.0/24 dev enp10s0 proto kernel scope link src 192.168.1.7 metric 100