使用 Hyper-V 成功安装 openSUSE-Leap-15.4 系统后，发现没有 ifconfig 指令。这是因为，SUSE 默认不支持 ifconfig 指令，需要我们手动安装。安装过程如下：
首次安装完 SUSE 后，默认的数据源是 openSUSE，国内访问存在问题，需要将软件源替换成国内源，执行如下命令：
// 禁用 openSUSE 默认的软件源
sudo zypper mr -da
// 安装国内软件源
sudo zypper ar -fc https://mirrors.aliyun.com/opensuse/distribution/leap/15.2/repo/oss openSUSE15.2-Aliyun-OSS
sudo zypper ar -fc https://mirrors.aliyun.com/opensuse/distribution/leap/15.2/repo/non-oss openSUSE15.2-Aliyun-NON-OSS
sudo zypper ar -fc https://mirrors.aliyun.com/opensuse/update/leap/15.2/oss openSUSE15.2-Aliyun-UPDATE-OSS
sudo zypper ar -fc https://mirrors.aliyun.com/opensuse/update/leap/15.2/non-oss openSUSE15.2-Aliyun-UPDATE-NON-OSS
// 刷新
sudo zypper ref点击 https://www.hxstrive.com/article/916.htm 查看详细教程。
执行 zypper search net-tools 命令搜索 net-tools 软件包。命令如下：
hxstrive@localhost:~> zypper search net-tools
Loading repository data...
Warning: Repository 'openSUSE-15.2-Update-Non-Oss' appears to be outdated. Consider using a different mirror or server.
Warning: Repository 'openSUSE-15.2-Update-Oss' appears to be outdated. Consider using a different mirror or server.
Reading installed packages...
S | Name | Summary | Type
---+----------------------+------------------------------------+--------
i+ | net-tools | Important Programs for Networking | package
i+ | net-tools-deprecated | Deprecated Networking Utilities | package
| net-tools-lang | Translations for package net-tools | package根据搜索的结果，我们使用 zypper 安装 net-tools-deprecated 软件包。命令如下：
hxstrive@localhost:~> sudo zypper install net-tools-deprecated
[sudo] password for root:
Loading repository data...
Warning: Repository 'openSUSE-15.2-Update-Non-Oss' appears to be outdated. Consider using a different mirror or server.
Warning: Repository 'openSUSE-15.2-Update-Oss' appears to be outdated. Consider using a different mirror or server.
Reading installed packages...
Resolving package dependencies...
The following NEW package is going to be installed:
net-tools-deprecated
1 new package to install.
Overall download size: 167.5 KiB. Already cached: 0 B. After the operation, additional 460.1 KiB will be used.
Continue? [y/n/v/...? shows all options] (y): y
Retrieving package net-tools-deprecated-2.0+git20170221.479bb4a-lp152.5.5.x86_64 (1/1), 167.5 KiB (460.1 KiB unpacked)
Retrieving: net-tools-deprecated-2.0+git20170221.479bb4a-lp152.5.5.x86_64.rpm .......................[done (67.2 KiB/s)]
Checking for file conflicts: .....................................................................................[done]
(1/1) Installing: net-tools-deprecated-2.0+git20170221.479bb4a-lp152.5.5.x86_64 ..................................[done]使用 ipconfig 命令查看本机IP信息，命令如下：
hxstrive@localhost:~> ifconfig
...
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 1500
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0xfe<compat,link,site,host>
loop (Local Loopback)
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
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