I want to change 3G dns setting on Android 2.1 device. I managed to install busybox on my device, i can also get dns information by using adb shell getprop | grep dns
. The only problem is that it shows me net.pdp0.dns1
and net.pdp0.dns2
, not net.rmnet0.dns1
and net.rmnet0.dns1
so i can't change the setting.
I know that net.rmnet0.dns1
is for 3G connection, so what about net.pdp0.dns1
? How can i change to net.rmnet0.dns1
?
Thanks
Android DSN file contains in following directory:
In android file system
system/etc/dhcpcd/dhcpcd-hooks/20-dns.conf
20-dns.conf file contains dns setting, you can modify this file by following way:
# Set net.<iface>.dnsN properties that contain the
# DNS server addresses given by the DHCP server.
set_dns_props()
{
case "${new_domain_name_servers}" in
"") return 0;;
esac
count=1
for i in 1 2 3 4; do
setprop dhcp.${interface}.dns${i} ""
done
count=1
for dnsaddr in ${new_domain_name_servers}; do
setprop dhcp.${interface}.dns${count} ${dnsaddr}
count=$(($count + 1))
done
setprop dhcp.eth0.dns1 8.8.8.8
setprop dhcp.eth0.dns2 8.8.8.4
}
unset_dns_props()
{
for i in 1 2 3 4; do
setprop dhcp.${interface}.dns${i} ""
done
}
case "${reason}" in
BOUND|INFORM|REBIND|REBOOT|RENEW|TIMEOUT) set_dns_props;;
EXPIRE|FAIL|IPV4LL|RELEASE|STOP) unset_dns_props;;
esac
(Note:Please take backup of origin file , if you need origin file)
set your dns in following line
setprop dhcp.eth0.dns1 8.8.8.8
setprop dhcp.eth0.dns2 8.8.8.4
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