我对我的 kvm 设置有点困惑。
我在hetzner.de现在想使用 libvirt 和 kvm 设置虚拟化。我创建了一个桥接器br0，现在它拥有静态服务器 ip（而不是默认接口enp2s0）。将 /29 子网链接到桥接器并为客户机分配静态 ip 一切顺利。现在我可以使用静态 ip 从外部访问它，但无法获取软件包或 ping 名称服务器。因此 ping8.8.8.8工作正常，同时 pinggoogle.com回答：
Temporary failure in name resolution
以下是主机的路线（这里和下文中我将第一个八度替换为 255）
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 255.251.246.1 0.0.0.0 UG 0 0 0 br0
255.9.179.64 0.0.0.0 255.255.255.255 UH 0 0 0 br0
255.9.179.65 0.0.0.0 255.255.255.255 UH 0 0 0 br0
255.9.179.66 0.0.0.0 255.255.255.255 UH 0 0 0 br0
255.9.179.67 0.0.0.0 255.255.255.255 UH 0 0 0 br0
255.9.179.68 0.0.0.0 255.255.255.255 UH 0 0 0 br0
255.9.179.69 0.0.0.0 255.255.255.255 UH 0 0 0 br0
255.9.179.70 0.0.0.0 255.255.255.255 UH 0 0 0 br0
255.251.246.0 0.0.0.0 255.255.255.224 U 0 0 0 br0
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 bro0
的结果brctl show：
bridge name bridge id STP enabled interfaces
br0 8000.448a5b5dd0f1 no enp2s0
vnet0
bro0 8000.52540006b883 yes bro0-nic
ifconfig在主机上：
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 255.251.246.11 netmask 255.255.255.224 broadcast 255.251.246.31
inet6 255::468a:5bff:fe5d:d0f1 prefixlen 64 scopeid 0x20<link>
ether 44:8a:5b:5d:d0:f1 txqueuelen 1000 (Ethernet)
RX packets 51679 bytes 3634682 (3.4 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 90348 bytes 7395186 (7.0 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
bro0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:06:b8:83 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
enp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 44:8a:5b:5d:d0:f1 txqueuelen 1000 (Ethernet)
RX packets 104449 bytes 7981272 (7.6 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 89828 bytes 8144371 (7.7 MiB)
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 1 (Local Loopback)
RX packets 2 bytes 190 (190.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2 bytes 190 (190.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
vnet0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 255::fc54:ff:fe94:8198 prefixlen 64 scopeid 0x20<link>
ether fe:54:00:94:81:98 txqueuelen 1000 (Ethernet)
RX packets 1172 bytes 110476 (107.8 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 5399 bytes 321838 (314.2 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
和ifconfig客人
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
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: ens2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 52:54:00:94:81:98 brd ff:ff:ff:ff:ff:ff
inet 255.9.179.65 peer 255.251.246.11/32 brd 255.9.179.65 scope global ens2
valid_lft forever preferred_lft forever
inet6 255::5054:ff:fe94:8198/64 scope link
valid_lft forever preferred_lft forever
目前我还没有设置任何类型的防火墙。我想在不受其干扰的情况下测试连接等。现在我想这可能是问题所在。可能是伪装的问题。
非常感谢您的帮助！
干杯，托比
答案1
谢谢@MichaelHampton我成功了。我忘记在 下的客户端中更新名称服务器/etc/resolv.conf。插入主机名称服务器解决了我的问题。