Networking
KVM 來賓無法獲取軟體包，因此可以從 ssh 訪問
我對我的 kvm 設置有點迷茫。
我在hetzner.de租了一個根伺服器，現在想使用 libvirt 和 kvm 設置虛擬化。我創建了一個橋
br0，它現在保存靜態伺服器 ip（而不是預設介面enp2s0）。將 /29 子網連結到網橋並為來賓分配靜態 IP 一切正常。現在我可以使用靜態 ip 從外部訪問它，但無法獲取包或 ping 名稱伺服器。所以 ping8.8.8.8工作正常，同時 pinggoogle.com答案：Temporary failure in name resolution這是主機的路線（在此處和以下文本中，我將第一個八度音階替換為 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結果
brctl show：bridge name bridge id STP enabled interfaces br0 8000.448a5b5dd0f1 no enp2s0 vnet0 bro0 8000.52540006b883 yes bro0-nic
ifconfig在主機上：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客人的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目前我還沒有設置任何類型的防火牆。我想測試連接等而不受它的干擾。現在我想這可能是問題所在。可能是偽裝的問題。。
幫助表示讚賞！
乾杯，托比
感謝@MichaelHampton，我得到了它的工作。我忘記在來賓下更新名稱伺服器
/etc/resolv.conf。插入主機名稱伺服器解決了我的問題。