Centos
CentOS 主機,OpenVZ CentOS 容器有自己的 IP 無法訪問網際網路
我正在執行 CentOS 6,並且已經安裝了 OpenVZ(隨本指南一起安裝)。我是虛擬化新手,我只是將這些容器用於我自己的項目。
我遵循了該指南中的所有說明。
$ cat /proc/sys/net/ipv4/ip_forward 1
我使用 OpenVZ 的 CentOS 6 模板創建了一個 CentOS 6 容器。我還向容器添加了一個 IP 並設置了一個名稱伺服器。
主機的ifconfig:
eth0 Link encap:Ethernet HWaddr 00:30:48:A0:18:A8 inet addr:107.161.123.162 Bcast:107.161.123.167 Mask:255.255.255.248 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:255699 errors:0 dropped:0 overruns:0 frame:0 TX packets:40447 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:299527614 (285.6 MiB) TX bytes:3249925 (3.0 MiB) Interrupt:28 Memory:fbce0000-fbd00000 eth0:0 Link encap:Ethernet HWaddr 00:30:48:A0:18:A8 inet addr:107.161.123.163 Bcast:107.161.123.167 Mask:255.255.255.248 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:28 Memory:fbce0000-fbd00000 eth0:1 Link encap:Ethernet HWaddr 00:30:48:A0:18:A8 inet addr:107.161.123.164 Bcast:107.161.123.167 Mask:255.255.255.248 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:28 Memory:fbce0000-fbd00000 eth0:2 Link encap:Ethernet HWaddr 00:30:48:A0:18:A8 inet addr:107.161.123.165 Bcast:107.161.123.167 Mask:255.255.255.248 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:28 Memory:fbce0000-fbd00000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:2 errors:0 dropped:0 overruns:0 frame:0 TX packets:2 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:158 (158.0 b) TX bytes:158 (158.0 b) venet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 RX packets:393 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:29817 (29.1 KiB) TX bytes:0 (0.0 b)
我用來創建和啟動容器的命令:
vzctl create 102 --ostemplate centos-6-x86_64 vzctl set 102 --ipadd 107.161.123.163 --save vzctl set 102 --nameserver 8.8.8.8 --save vzctl start 102
容器的 ifconfig:
lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) venet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:127.0.0.1 P-t-P:127.0.0.1 Bcast:0.0.0.0 Mask:255.255.255.255 UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:47 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:2958 (2.8 KiB) venet0:0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:107.161.123.163 P-t-P:107.161.123.163 Bcast:107.161.123.163 Mask:255.255.255.255 UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1
容器根本無法訪問 Internet。它可以ping通自己的IP(107.161.123.163),無法ping通主機IP或8.8.8.8。
我是 Linux 虛擬化的新手。任何幫助將不勝感激。
我解決了我的問題。事實證明,由於 IP 綁定到主機上的介面,因此容器無法使用它。