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en/docs/install/entware.md

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+---
+hide:
+  - toc
+---
+
+# EntWare
+
+## Prepare
+
+When using this software, you need to confirm whether the router supports USB disk and prepare a USB disk.
+
+## Install SmartDNS
+
+Upload the software to `/tmp` directory of the router using winscp, and run the following command to install.
+
+```shell
+ipkg install smartdns.xxxxxxx.mipsbig.ipk
+```
+
+## Modify the smartdns configuration
+
+```shell
+Vi /opt/etc/smartdns/smartdns.conf
+```
+
+`smartdns.conf` example:
+
+```shell
+# set listen port
+bind []:53 
+# set upstream servers
+server 1.1.1.1
+server-tls 8.8.8.8
+# set domain rules
+address /example.com/1.2.3.4
+domain-rule /example.com/ -address 1.2.3.4
+```
+
+Note: if you need to support IPV6, you can set the work-mode to `2`, this will disable the DNS service of dnsmasq, and smartdns run as the primary DNS server. Change `SMARTDNS_WORKMODE` in the file `/opt/etc/smartdns/smartdns-opt.conf` to `2`.
+
+```shell
+SMARTDNS_WORKMODE="2"
+```
+
+## Restart the router to take effect
+
+After the router is started, use `nslookup -querytype=ptr smartdns` to query the domain name.
+See if the `name` item in the command result is displayed as `smartdns` or `hostname`, such as `smartdns`
+
+```shell
+Pi@raspberrypi:~/code/smartdns_build $ nslookup -querytype=ptr smartdns
+Server: 192.168.1.1
+Address: 192.168.1.1#53
+
+Non-authoritative answer:
+smartdns        name = smartdns.
+```
+
+Note: If the service does not start automatically, you need to set optware/entware to start automatically. For details, see the optware/entware documentation.