wget -c https://downloads.openwrt.org/releases/18.06.2/packages/x86_64/base/libopenssl_1.0.2q-1_x86_64.ipk
wget -c https://github.com/pymumu/smartdns/releases/download/Release23/luci-app-smartdns.1.2019.04.02-0832.all.ipk
wget -c https://github.com/pymumu/smartdns/releases/download/Release23/smartdns.1.2019.04.02-0832.x86_64.ipk
opkg update
opkg install ./libopenssl_1.0.2q-1_x86_64.ipk
opkg install ./smartdns.1.2019.04.02-0832.x86_64.ipk
opkg install ./luci-app-smartdns.1.2019.04.02-0832.all.ipk