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Restore port 53 of dnsmasq after the smartdns is stopped. #1738

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@TDXCHAIN 何意思?

@@ -119,8 +119,10 @@ stop_main_dns()
uci -q set dhcp.@dnsmasq[0].dns_redirect=1
uci -q delete dhcp.@dnsmasq[0].old_dns_redirect
}
uci -q delete dhcp.@dnsmasq[0].port
[ "$dnsmasq_port" = "0" ] && {
uci -q set dhcp.@dnsmasq[0].port="53"
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不设置的话应该是有默认值的。

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这里选择删除端口信息的话,dnsmasq应该会创建默认的53端口配置。

是遇到什么问题么?

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这里选择删除端口信息的话,dnsmasq应该会创建默认的53端口配置。

是遇到什么问题么?

根据我实际使用情况来看,dnsmasq默认配置上端口号可能为空值(此时确实是53端口)。在此情况下,smartdns将其改写为53正确但不合理(别动我的dnsmasq!)。
顺便说一下当openwrt只有一个接口且配置为dhcp client时,配置文件中的接口ip也可能是空值,也会导致smartdns的一些问题。

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这里选择删除端口信息的话,dnsmasq应该会创建默认的53端口配置。

是遇到什么问题么?

uci配置和实际运行配置不一样。dnsmasq创建53端口的运行配置不会改变uci的配置,此时读uci配置的端口号可能是空值。

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uci配置和实际运行配置不一样。dnsmasq创建53端口的运行配置不会改变uci的配置,此时读uci配置的端口号可能是空值。

实际情况是:
1、在smartdns未启动时,dnsmasq默认配置上端口号实际是空值,如事前dnsmasq默认配置上端口号设置为53,端口即为53。
2、在smartdns启动后,smartdns将dnsmasq默认配置上端口号改写为0。
3、停用smartdns后,smartdns会将dnsmasq默认配置上端口号变为空值,而不会恢复为53端口(假设第1项smartdns未启动情况且已设置了dnsmasq默认配置上端口号为53)。

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