From ab59520c1159468a7fa0a51480fec53e5ac9502d Mon Sep 17 00:00:00 2001 From: "Xingyu.Wang" Date: Thu, 6 Sep 2018 22:30:40 +0800 Subject: [PATCH] PRF:20180529 How To Add Additional IP (Secondary IP) In Ubuntu System.md @MjSeven --- ...onal IP (Secondary IP) In Ubuntu System.md | 343 +++++++++--------- 1 file changed, 174 insertions(+), 169 deletions(-) diff --git a/translated/tech/20180529 How To Add Additional IP (Secondary IP) In Ubuntu System.md b/translated/tech/20180529 How To Add Additional IP (Secondary IP) In Ubuntu System.md index 53d9a090ba..37a95c6b0b 100644 --- a/translated/tech/20180529 How To Add Additional IP (Secondary IP) In Ubuntu System.md +++ b/translated/tech/20180529 How To Add Additional IP (Secondary IP) In Ubuntu System.md @@ -12,92 +12,98 @@ Linux 管理员应该意识到这一点，因为这是一项例行任务。很 这是业界的最佳实践，它允许用户安装 SSL 证书。大多数系统都配有单块网卡，这足以添加额外的 IP 地址。 **建议阅读：** -**(#)** [在 Linux 命令行中 9 种方法检查公共 IP 地址][1] -**(#)** [在 Linux 终端中 3 种简单的方式来检查 DNS（域名服务器）记录][2] -**(#)** [在 Linux 上使用 Dig 命令检查 DNS（域名服务器）记录][3] -**(#)** [在 Linux 上使用 Nslookup 命令检查 DNS（域名服务器）记录][4] -**(#)** [在 Linux 上使用 Host 命令检查 DNS（域名服务器）记录][5] + +- [在 Linux 命令行中 9 种方法检查公共 IP 地址][1] +- [在 Linux 终端中 3 种简单的方式来检查 DNS（域名服务器）记录][2] +- [在 Linux 上使用 Dig 命令检查 DNS（域名服务器）记录][3] +- [在 Linux 上使用 Nslookup 命令检查 DNS（域名服务器）记录][4] +- [在 Linux 上使用 Host 命令检查 DNS（域名服务器）记录][5] 我们可以在同一个接口上添加 IP 地址，或者在同一设备上创建子接口，然后在其中添加 IP。默认情况下，一直到 Ubuntu 14.04 LTS，接口给名称为 `ethX (eth0)`，但是从 Ubuntu 15.10 之后网络接口名称已从 `ethX` 更改为 `enXXXXX`（对于服务器是 ens33，桌面版是 enp0s3）。 在本文中，我们将教你如何在 Ubuntu 上执行此操作，并且衍生到其它发行版（to 校正：这句自己加的）。 -**`注意：`**别在 DNS 详细信息后添加 IP 地址。如果是这样，DNS 将无法正常工作。 +**注意：**别在 DNS 详细信息后添加 IP 地址。如果是这样，DNS 将无法正常工作。 ### 如何在 Ubuntu 14.04 LTS 中添加临时辅助 IP 地址 在系统中添加 IP 地址之前，运行以下任一命令即可验证服务器主 IP 地址： + ``` # ifconfig - -or +或 +# ip addr # ip addr -eth0 Link encap:Ethernet HWaddr 08:00:27:98:b7:36 - inet addr:192.168.56.150 Bcast:192.168.56.255 Mask:255.255.255.0 - inet6 addr: fe80::a00:27ff:fe98:b736/64 Scope:Link - UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 - RX packets:4 errors:0 dropped:0 overruns:0 frame:0 - TX packets:105 errors:0 dropped:0 overruns:0 carrier:0 - collisions:0 txqueuelen:1000 - RX bytes:902 (902.0 B) TX bytes:16423 (16.4 KB) +eth0 Link encap:Ethernet HWaddr 08:00:27:98:b7:36 + inet addr:192.168.56.150 Bcast:192.168.56.255 Mask:255.255.255.0 + inet6 addr: fe80::a00:27ff:fe98:b736/64 Scope:Link + UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 + RX packets:4 errors:0 dropped:0 overruns:0 frame:0 + TX packets:105 errors:0 dropped:0 overruns:0 carrier:0 + collisions:0 txqueuelen:1000 + RX bytes:902 (902.0 B) TX bytes:16423 (16.4 KB) -eth1 Link encap:Ethernet HWaddr 08:00:27:6a:cf:d3 - inet addr:10.0.3.15 Bcast:10.0.3.255 Mask:255.255.255.0 - inet6 addr: fe80::a00:27ff:fe6a:cfd3/64 Scope:Link - UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 - RX packets:80 errors:0 dropped:0 overruns:0 frame:0 - TX packets:146 errors:0 dropped:0 overruns:0 carrier:0 - collisions:0 txqueuelen:1000 - RX bytes:8698 (8.6 KB) TX bytes:17047 (17.0 KB) - -lo Link encap:Local Loopback - inet addr:127.0.0.1 Mask:255.0.0.0 - inet6 addr: ::1/128 Scope:Host - UP LOOPBACK RUNNING MTU:65536 Metric:1 - RX packets:25 errors:0 dropped:0 overruns:0 frame:0 - TX packets:25 errors:0 dropped:0 overruns:0 carrier:0 - collisions:0 txqueuelen:1 - RX bytes:1730 (1.7 KB) TX bytes:1730 (1.7 KB) +eth1 Link encap:Ethernet HWaddr 08:00:27:6a:cf:d3 + inet addr:10.0.3.15 Bcast:10.0.3.255 Mask:255.255.255.0 + inet6 addr: fe80::a00:27ff:fe6a:cfd3/64 Scope:Link + UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 + RX packets:80 errors:0 dropped:0 overruns:0 frame:0 + TX packets:146 errors:0 dropped:0 overruns:0 carrier:0 + collisions:0 txqueuelen:1000 + RX bytes:8698 (8.6 KB) TX bytes:17047 (17.0 KB) +lo Link encap:Local Loopback + inet addr:127.0.0.1 Mask:255.0.0.0 + inet6 addr: ::1/128 Scope:Host + UP LOOPBACK RUNNING MTU:65536 Metric:1 + RX packets:25 errors:0 dropped:0 overruns:0 frame:0 + TX packets:25 errors:0 dropped:0 overruns:0 carrier:0 + collisions:0 txqueuelen:1 + RX bytes:1730 (1.7 KB) TX bytes:1730 (1.7 KB) ``` 如我所见，服务器主 IP 地址是 `192.168.56.150`，我将下一个 IP `192.168.56.151` 作为辅助 IP，使用以下方法完成： + ``` # ip addr add 192.168.56.151/24 broadcast 192.168.56.255 dev eth0 label eth0:1 - ``` 输入以下命令以检查新添加的 IP 地址。如果你重新启动服务器，那么新添加的 IP 地址会消失，因为我们的 IP 是临时添加的。 + ``` # ip addr -1: lo: 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: eth0: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 - link/ether 08:00:27:98:b7:36 brd ff:ff:ff:ff:ff:ff - inet 192.168.56.150/24 brd 192.168.56.255 scope global eth0 - valid_lft forever preferred_lft forever - inet 192.168.56.151/24 brd 192.168.56.255 scope global secondary eth0:1 - valid_lft forever preferred_lft forever - inet6 fe80::a00:27ff:fe98:b736/64 scope link - valid_lft forever preferred_lft forever -3: eth1: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 - link/ether 08:00:27:6a:cf:d3 brd ff:ff:ff:ff:ff:ff - inet 10.0.3.15/24 brd 10.0.3.255 scope global eth1 - valid_lft forever preferred_lft forever - inet6 fe80::a00:27ff:fe6a:cfd3/64 scope link - valid_lft forever preferred_lft forever - +1: lo: 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: eth0: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 + link/ether 08:00:27:98:b7:36 brd ff:ff:ff:ff:ff:ff + inet 192.168.56.150/24 brd 192.168.56.255 scope global eth0 + valid_lft forever preferred_lft forever + inet 192.168.56.151/24 brd 192.168.56.255 scope global secondary eth0:1 + valid_lft forever preferred_lft forever + inet6 fe80::a00:27ff:fe98:b736/64 scope link + valid_lft forever preferred_lft forever +3: eth1: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 + link/ether 08:00:27:6a:cf:d3 brd ff:ff:ff:ff:ff:ff + inet 10.0.3.15/24 brd 10.0.3.255 scope global eth1 + valid_lft forever preferred_lft forever + inet6 fe80::a00:27ff:fe6a:cfd3/64 scope link + valid_lft forever preferred_lft forever ``` ### 如何在 Ubuntu 14.04 LTS 中添加永久辅助 IP 地址 要在 Ubuntu 系统上添加永久辅助 IP 地址，只需编辑 `/etc/network/interfaces` 文件并添加所需的 IP 详细信息。 + +``` +# vi /etc/network/interfaces +``` + ``` # vi /etc/network/interfaces @@ -108,61 +114,60 @@ iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static - address 192.168.56.150 - netmask 255.255.255.0 - network 192.168.56.0 - broadcast 192.168.56.255 - gateway 192.168.56.1 + address 192.168.56.150 + netmask 255.255.255.0 + network 192.168.56.0 + broadcast 192.168.56.255 + gateway 192.168.56.1 auto eth0:1 iface eth0:1 inet static - address 192.168.56.151 - netmask 255.255.255.0 - + address 192.168.56.151 + netmask 255.255.255.0 ``` 保存并关闭文件，然后重启网络接口服务。 + ``` # service networking restart -or +或 # ifdown eth0:1 && ifup eth0:1 - ``` 验证新添加的 IP 地址： + ``` # ifconfig -eth0 Link encap:Ethernet HWaddr 08:00:27:98:b7:36 - inet addr:192.168.56.150 Bcast:192.168.56.255 Mask:255.255.255.0 - inet6 addr: fe80::a00:27ff:fe98:b736/64 Scope:Link - UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 - RX packets:5 errors:0 dropped:0 overruns:0 frame:0 - TX packets:84 errors:0 dropped:0 overruns:0 carrier:0 - collisions:0 txqueuelen:1000 - RX bytes:962 (962.0 B) TX bytes:11905 (11.9 KB) +eth0 Link encap:Ethernet HWaddr 08:00:27:98:b7:36 + inet addr:192.168.56.150 Bcast:192.168.56.255 Mask:255.255.255.0 + inet6 addr: fe80::a00:27ff:fe98:b736/64 Scope:Link + UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 + RX packets:5 errors:0 dropped:0 overruns:0 frame:0 + TX packets:84 errors:0 dropped:0 overruns:0 carrier:0 + collisions:0 txqueuelen:1000 + RX bytes:962 (962.0 B) TX bytes:11905 (11.9 KB) -eth0:1 Link encap:Ethernet HWaddr 08:00:27:98:b7:36 - inet addr:192.168.56.151 Bcast:192.168.56.255 Mask:255.255.255.0 - UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 +eth0:1 Link encap:Ethernet HWaddr 08:00:27:98:b7:36 + inet addr:192.168.56.151 Bcast:192.168.56.255 Mask:255.255.255.0 + UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 -eth1 Link encap:Ethernet HWaddr 08:00:27:6a:cf:d3 - inet addr:10.0.3.15 Bcast:10.0.3.255 Mask:255.255.255.0 - inet6 addr: fe80::a00:27ff:fe6a:cfd3/64 Scope:Link - UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 - RX packets:4924 errors:0 dropped:0 overruns:0 frame:0 - TX packets:3185 errors:0 dropped:0 overruns:0 carrier:0 - collisions:0 txqueuelen:1000 - RX bytes:4037636 (4.0 MB) TX bytes:422516 (422.5 KB) - -lo Link encap:Local Loopback - inet addr:127.0.0.1 Mask:255.0.0.0 - inet6 addr: ::1/128 Scope:Host - 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:1 - RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) +eth1 Link encap:Ethernet HWaddr 08:00:27:6a:cf:d3 + inet addr:10.0.3.15 Bcast:10.0.3.255 Mask:255.255.255.0 + inet6 addr: fe80::a00:27ff:fe6a:cfd3/64 Scope:Link + UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 + RX packets:4924 errors:0 dropped:0 overruns:0 frame:0 + TX packets:3185 errors:0 dropped:0 overruns:0 carrier:0 + collisions:0 txqueuelen:1000 + RX bytes:4037636 (4.0 MB) TX bytes:422516 (422.5 KB) +lo Link encap:Local Loopback + inet addr:127.0.0.1 Mask:255.0.0.0 + inet6 addr: ::1/128 Scope:Host + 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:1 + RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) ``` ### 如何在 Ubuntu 16.04 LTS 中临时添加辅助 IP 地址 @@ -170,79 +175,80 @@ lo Link encap:Local Loopback 正如本文开头所述，网络接口名称从 Ubuntu 15.10 就开始从 ‘ethX’ 更改为 ‘enXXXX’ (enp0s3)，所以，替换你的接口名称。 在执行此操作之前，先检查系统上的 IP 信息： + ``` # ifconfig -or +或 # ip addr -enp0s3: flags=4163 mtu 1500 - inet 192.168.56.201 netmask 255.255.255.0 broadcast 192.168.56.255 - inet6 fe80::a00:27ff:fe97:132e prefixlen 64 scopeid 0x20 - ether 08:00:27:97:13:2e txqueuelen 1000 (Ethernet) - RX packets 7 bytes 420 (420.0 B) - RX errors 0 dropped 0 overruns 0 frame 0 - TX packets 294 bytes 24747 (24.7 KB) - TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 +enp0s3: flags=4163 mtu 1500 + inet 192.168.56.201 netmask 255.255.255.0 broadcast 192.168.56.255 + inet6 fe80::a00:27ff:fe97:132e prefixlen 64 scopeid 0x20 + ether 08:00:27:97:13:2e txqueuelen 1000 (Ethernet) + RX packets 7 bytes 420 (420.0 B) + RX errors 0 dropped 0 overruns 0 frame 0 + TX packets 294 bytes 24747 (24.7 KB) + TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 -enp0s8: flags=4163 mtu 1500 - inet 10.0.3.15 netmask 255.255.255.0 broadcast 10.0.3.255 - inet6 fe80::344b:6259:4dbe:eabb prefixlen 64 scopeid 0x20 - ether 08:00:27:12:e8:c1 txqueuelen 1000 (Ethernet) - RX packets 1 bytes 590 (590.0 B) - RX errors 0 dropped 0 overruns 0 frame 0 - TX packets 97 bytes 10209 (10.2 KB) - TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 - -lo: flags=73 mtu 65536 - inet 127.0.0.1 netmask 255.0.0.0 - inet6 ::1 prefixlen 128 scopeid 0x10 - loop txqueuelen 1000 (Local Loopback) - RX packets 325 bytes 24046 (24.0 KB) - RX errors 0 dropped 0 overruns 0 frame 0 - TX packets 325 bytes 24046 (24.0 KB) - TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 +enp0s8: flags=4163 mtu 1500 + inet 10.0.3.15 netmask 255.255.255.0 broadcast 10.0.3.255 + inet6 fe80::344b:6259:4dbe:eabb prefixlen 64 scopeid 0x20 + ether 08:00:27:12:e8:c1 txqueuelen 1000 (Ethernet) + RX packets 1 bytes 590 (590.0 B) + RX errors 0 dropped 0 overruns 0 frame 0 + TX packets 97 bytes 10209 (10.2 KB) + TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 +lo: flags=73 mtu 65536 + inet 127.0.0.1 netmask 255.0.0.0 + inet6 ::1 prefixlen 128 scopeid 0x10 + loop txqueuelen 1000 (Local Loopback) + RX packets 325 bytes 24046 (24.0 KB) + RX errors 0 dropped 0 overruns 0 frame 0 + TX packets 325 bytes 24046 (24.0 KB) + TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ``` 如我所见，服务器主 IP 地址是 `192.168.56.201`，所以，我将下一个 IP `192.168.56.202` 作为辅助 IP，使用以下命令完成。 + ``` # ip addr add 192.168.56.202/24 broadcast 192.168.56.255 dev enp0s3 - ``` 运行以下命令来检查是否已分配了新的 IP。当你重启机器时，它会消失。 + ``` # ip addr -1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 - 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: enp0s3: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 - link/ether 08:00:27:97:13:2e brd ff:ff:ff:ff:ff:ff - inet 192.168.56.201/24 brd 192.168.56.255 scope global enp0s3 - valid_lft forever preferred_lft forever - inet 192.168.56.202/24 brd 192.168.56.255 scope global secondary enp0s3 - valid_lft forever preferred_lft forever - inet6 fe80::a00:27ff:fe97:132e/64 scope link - valid_lft forever preferred_lft forever -3: enp0s8: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 - link/ether 08:00:27:12:e8:c1 brd ff:ff:ff:ff:ff:ff - inet 10.0.3.15/24 brd 10.0.3.255 scope global dynamic enp0s8 - valid_lft 86353sec preferred_lft 86353sec - inet6 fe80::344b:6259:4dbe:eabb/64 scope link - valid_lft forever preferred_lft forever - +1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 + 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: enp0s3: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 + link/ether 08:00:27:97:13:2e brd ff:ff:ff:ff:ff:ff + inet 192.168.56.201/24 brd 192.168.56.255 scope global enp0s3 + valid_lft forever preferred_lft forever + inet 192.168.56.202/24 brd 192.168.56.255 scope global secondary enp0s3 + valid_lft forever preferred_lft forever + inet6 fe80::a00:27ff:fe97:132e/64 scope link + valid_lft forever preferred_lft forever +3: enp0s8: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 + link/ether 08:00:27:12:e8:c1 brd ff:ff:ff:ff:ff:ff + inet 10.0.3.15/24 brd 10.0.3.255 scope global dynamic enp0s8 + valid_lft 86353sec preferred_lft 86353sec + inet6 fe80::344b:6259:4dbe:eabb/64 scope link + valid_lft forever preferred_lft forever ``` ### 如何在 Ubuntu 16.04 LTS 中添加永久辅助 IP 地址 要在 Ubuntu 系统上添加永久辅助 IP 地址，只需编辑 `/etc/network/interfaces` 文件并添加所需 IP 的详细信息。 -我们不应该在 dns-nameservers 之后添加辅助 IP 地址，因为它不会起作用，应该以下面的格式添加 IP 详情。 +我们不应该在 `dns-nameservers` 行之后添加辅助 IP 地址，因为它不会起作用，应该以下面的格式添加 IP 详情。 此外，我们不需要添加子接口（我们之前在 Ubuntu 14.04 LTS 中的做法）： + ``` # vi /etc/network/interfaces @@ -264,45 +270,45 @@ gateway 192.168.56.1 network 192.168.56.0 broadcast 192.168.56.255 dns-nameservers 8.8.8.8 8.8.4.4 -dns-search 2daygeek.local - +dns-search 2daygeek.local ``` 保存并关闭文件，然后重启网络接口服务： + ``` # systemctl restart networking -or +或 # ifdown enp0s3 && ifup enp0s3 - ``` 运行以下命令来检查是否已经分配了新的 IP： + ``` # ip addr -1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 - 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: enp0s3: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 - link/ether 08:00:27:97:13:2e brd ff:ff:ff:ff:ff:ff - inet 192.168.56.201/24 brd 192.168.56.255 scope global enp0s3 - valid_lft forever preferred_lft forever - inet 192.168.56.202/24 brd 192.168.56.255 scope global secondary enp0s3 - valid_lft forever preferred_lft forever - inet6 fe80::a00:27ff:fe97:132e/64 scope link - valid_lft forever preferred_lft forever -3: enp0s8: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 - link/ether 08:00:27:12:e8:c1 brd ff:ff:ff:ff:ff:ff - inet 10.0.3.15/24 brd 10.0.3.255 scope global dynamic enp0s8 - valid_lft 86353sec preferred_lft 86353sec - inet6 fe80::344b:6259:4dbe:eabb/64 scope link - valid_lft forever preferred_lft forever - +1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 + 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: enp0s3: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 + link/ether 08:00:27:97:13:2e brd ff:ff:ff:ff:ff:ff + inet 192.168.56.201/24 brd 192.168.56.255 scope global enp0s3 + valid_lft forever preferred_lft forever + inet 192.168.56.202/24 brd 192.168.56.255 scope global secondary enp0s3 + valid_lft forever preferred_lft forever + inet6 fe80::a00:27ff:fe97:132e/64 scope link + valid_lft forever preferred_lft forever +3: enp0s8: mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 + link/ether 08:00:27:12:e8:c1 brd ff:ff:ff:ff:ff:ff + inet 10.0.3.15/24 brd 10.0.3.255 scope global dynamic enp0s8 + valid_lft 86353sec preferred_lft 86353sec + inet6 fe80::344b:6259:4dbe:eabb/64 scope link + valid_lft forever preferred_lft forever ``` 让我来 ping 一下新 IP 地址： + ``` # ping 192.168.56.202 -c 4 PING 192.168.56.202 (192.168.56.202) 56(84) bytes of data. @@ -314,7 +320,6 @@ PING 192.168.56.202 (192.168.56.202) 56(84) bytes of data. --- 192.168.56.202 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3068ms rtt min/avg/max/mdev = 0.019/0.045/0.087/0.026 ms - ``` -------------------------------------------------------------------------------- @@ -324,7 +329,7 @@ via: https://www.2daygeek.com/how-to-add-additional-ip-secondary-ip-in-ubuntu-de 作者：[Prakash Subramanian][a] 选题：[lujun9972](https://github.com/lujun9972) 译者：[MjSeven](https://github.com/MjSeven) -校对：[校对者ID](https://github.com/校对者ID) +校对：[wxy](https://github.com/wxy) 本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出