WiFi连接下，如何固定住IP地址

同一个WiFi网络下，经常需要两台设备之间通讯。用来共享文件、开发调试或者其他。通常为了做到这一点，我们需要固定的ip地址，或者固定的域名，这样使用方就不用经常更换地址了。

通过路由器绑定IP地址

一般WiFI路由器都有此功能，以小米无线路由器举例。如下

登录进小米路由器

绑定IP

这个方法通常需要有路由器的管理权限。如果没有就只能用下面的方法了。

通过查看IP，配置Hosts绑定

ipconifg 在windows上查看

# 设置路由器的ip地址
192.168.99.44 www.aigrow.space

搭建局域网DNS，集中管理

windows下也可以使用 choco来管理安装包。这里使用bind9作为dns服务。

# 以管理员的方式启动命令行窗口
C:>choco install bind-toolsonly
Chocolatey v0.10.15
Installing the following packages:
bind-toolsonly
By installing you accept licenses for the packages.

bind-toolsonly v9.16.28 
bind-toolsonly package files install completed. Performing other installation steps.
The package bind-toolsonly wants to run 'chocolateyInstall.ps1'.
Note: If you don't run this script, the installation will fail.
Note: To confirm automatically next time, use '-y' or consider:
choco feature enable -n allowGlobalConfirmation
Do you want to run the script?(es/ll - yes to all/o/rint): Y

# 下载后。。。通常会等待一段时间，有百分比提示
Extracting 64-bit C:ProgramDatachocolateylibbind-toolsonly	oolsBIND9.16.28.x64.zip to C:ProgramDatachocolateylibbind-toolsonly	oolscontent...
C:ProgramDatachocolateylibbind-toolsonly	oolscontent
 ShimGen has successfully created a shim for arpaname.exe
 ShimGen has successfully created a shim for BINDInstall.exe
 ShimGen has successfully created a shim for ddns-confgen.exe
 ShimGen has successfully created a shim for delv.exe
 ShimGen has successfully created a shim for dig.exe
 ShimGen has successfully created a shim for dnssec-cds.exe
 ShimGen has successfully created a shim for dnssec-dsfromkey.exe
 ShimGen has successfully created a shim for dnssec-importkey.exe
 ShimGen has successfully created a shim for dnssec-keyfromlabel.exe
 ShimGen has successfully created a shim for dnssec-keygen.exe
 ShimGen has successfully created a shim for dnssec-revoke.exe
 ShimGen has successfully created a shim for dnssec-settime.exe
 ShimGen has successfully created a shim for dnssec-signzone.exe
 ShimGen has successfully created a shim for dnssec-verify.exe
 ShimGen has successfully created a shim for host.exe
 ShimGen has successfully created a shim for mdig.exe
 ShimGen has successfully created a shim for named-checkconf.exe
 ShimGen has successfully created a shim for named-checkzone.exe
 ShimGen has successfully created a shim for named-compilezone.exe
 ShimGen has successfully created a shim for named-journalprint.exe
 ShimGen has successfully created a shim for named-rrchecker.exe
 ShimGen has successfully created a shim for named.exe
 ShimGen has successfully created a shim for nsec3hash.exe
 ShimGen has successfully created a shim for nslookup.exe
 ShimGen has successfully created a shim for nsupdate.exe
 ShimGen has successfully created a shim for rndc-confgen.exe
 ShimGen has successfully created a shim for rndc.exe
 ShimGen has successfully created a shim for tsig-keygen.exe
 ShimGen has successfully created a shim for vcredist_x64.exe
 The install of bind-toolsonly was successful.
  Software installed to 'C:ProgramDatachocolateylibbind-toolsonly	oolscontent'

Chocolatey installed 1/1 packages.
 See the log for details (C:ProgramDatachocolateylogschocolatey.log).

编辑配置文件

配置文件路径和文件目录结构

D:softdns>tree /F
卷 Data 的文件夹 PATH 列表
卷序列号为 1EC0-B189
D:.
│  managed-keys.bind
│  managed-keys.bind.jnl
│  named.conf
│  yrwp.ns.sz.cn.zone
│
└─log
        named.log

D:softdns>type named.conf
options {
    directory "D:softdns";
    listen-on port 53 { any; };
    allow-query { any; };
    recursion yes;
};

zone "yrwp.ns.sz.cn" {
    type master;
    file "yrwp.ns.sz.cn.zone";
};

logging {
    channel default_log {
        file "D:softdnslognamed.log";
        severity info;
        print-time yes;
        print-severity yes;
        print-category yes;
    };
    category default { default_log; };
};

D:softdns>type yrwp.ns.sz.cn.zone
$TTL 86400
@ IN SOA ns1.yrwp.ns.sz.cn. admin.yrwp.ns.sz.cn. (
    2023101001 ; Serial
    3600       ; Refresh
    1800       ; Retry
    1209600    ; Expire
    86400 )    ; Minimum TTL
@ IN NS ns1.yrwp.ns.sz.cn.
ns1 IN A 192.168.99.35

; n1 解析到192.168.99.44
n1 IN A 192.168.99.44

; 其他解析到192.168.99.1
* IN A 192.168.99.1

# 命令行启动named
C:ProgramDatachocolateylibbind-toolsonly	oolscontent
amed.exe -c named.conf -f
# 命令行启动named，并输出日志信息到控制台
C:ProgramDatachocolateylibbind-toolsonly	oolscontent
amed.exe -c named.conf -g

D:softdns>nslookup n1.yrwp.ns.sz.cn
服务器:  UnKnown
Address:  192.168.99.35

名称:    n1.yrwp.ns.sz.cn
Address:  192.168.99.44

然后配置好客户端的DNS服务，就可以获得如下效果：

D:softdns>ping n1.yrwp.ns.sz.cn

正在 Ping n1.yrwp.ns.sz.cn  具有 32 字节的数据:
来自 192.168.99.44 的回复: 字节=32 时间=2ms TTL=128
来自 192.168.99.44 的回复: 字节=32 时间=2ms TTL=128
来自 192.168.99.44 的回复: 字节=32 时间=2ms TTL=128
来自 192.168.99.44 的回复: 字节=32 时间=2ms TTL=128