Develop Bugs

[HOWTO] USB/RNDIS Tethering (root required)

First, let me apologize if solutions to this problem have already been posted on this forum and elsewhere. I developed this solution completely independently, and I am sharing it here in hopes that it may prove useful to someone else.
This pair of scripts will allow you to share your phone's Internet connection with a computer via a USB cable. It definitely works when the computer is running Linux (assuming you have RNDIS support in your kernel), and it should work as well when the computer is running Windows. However, it will not work with Mac, as OS X does not have an RNDIS driver.
First, upload these two scripts to your /sdcard:
/sdcard/usb_tether_start.sh:
Code:
#!/system/bin/sh
prevconfig=$(getprop sys.usb.config)
if [ "${prevconfig}" != "${prevconfig#rndis}" ] ; then
echo 'Is tethering already active?' >&2
exit 1
fi
echo "${prevconfig}" > /cache/usb_tether_prevconfig
setprop sys.usb.config 'rndis,adb'
until [ "$(getprop sys.usb.state)" = 'rndis,adb' ] ; do sleep 1 ; done
ip rule add from all lookup main
ip addr flush dev rndis0
ip addr add 192.168.2.1/24 dev rndis0
ip link set rndis0 up
iptables -t nat -I POSTROUTING 1 -o rmnet0 -j MASQUERADE
echo 1 > /proc/sys/net/ipv4/ip_forward
dnsmasq --pid-file=/cache/usb_tether_dnsmasq.pid --interface=rndis0 --bind-interfaces --bogus-priv --filterwin2k --no-resolv --domain-needed --server=8.8.8.8 --server=8.8.4.4 --cache-size=1000 --dhcp-range=192.168.2.2,192.168.2.254,255.255.255.0,192.168.2.255 --dhcp-lease-max=253 --dhcp-authoritative --dhcp-leasefile=/cache/usb_tether_dnsmasq.leases < /dev/null
/sdcard/usb_tether_stop.sh:
Code:
#!/system/bin/sh
if [ ! -f /cache/usb_tether_prevconfig ] ; then
echo '/cache/usb_tether_prevconfig not found. Is tethering really active?' >&2
exit 1
fi
if [ -f /cache/usb_tether_dnsmasq.pid ] ; then
kill "$(cat /cache/usb_tether_dnsmasq.pid)"
rm /cache/usb_tether_dnsmasq.pid
fi
echo 0 > /proc/sys/net/ipv4/ip_forward
iptables -t nat -D POSTROUTING 1
ip link set rndis0 down
ip addr flush dev rndis0
ip rule del from all lookup main
setprop sys.usb.config "$(cat /cache/usb_tether_prevconfig)"
rm /cache/usb_tether_prevconfig
while [ "$(getprop sys.usb.state)" = 'rndis,adb' ] ; do sleep 1 ; done
To start USB tethering:
Code:
adb shell "su -c 'sh /sdcard/usb_tether_start.sh'"
Grant the superuser request on the phone if one appears.
If you're on Linux, you'll see a new network interface appear (probably called "usb0"). Bring the link up on that interface (ip link set usb0 up), run a DHCP client, and you're all set!
If you're on Windows, it will probably Just Work™.
To stop USB tethering:
Code:
adb shell "su -c 'sh /sdcard/usb_tether_stop.sh'"
Again, grant the superuser request on the phone if one appears.
That's it!

OMG !!!!
You rock ! This solution is the FIRST one which works on my international i9300 device (not a 'Sprint' version) with cm10.1.
I can't understand why ... but i'll keep your script on my ext SDCard.
I'll prupose this script to french cm10.1 users.
Thank you!

OS X does not have an RNDIS driver? really?
...OS X does not have an RNDIS driver...
Click to expand...
Click to collapse
Please have a look at HoRNDIS: USB tethering driver for Mac OSX (it even supports modern/recent OSX versions!) @ hxxp://joshuawise.com/horndis (unable to embed inline URL link due to new user restriction)
whitslack said:
First, let me apologize if solutions to this problem have already been posted on this forum and elsewhere. I developed this solution completely independently, and I am sharing it here in hopes that it may prove useful to someone else.
This pair of scripts will allow you to share your phone's Internet connection with a computer via a USB cable. It definitely works when the computer is running Linux (assuming you have RNDIS support in your kernel), and it should work as well when the computer is running Windows. However, it will not work with Mac, as OS X does not have an RNDIS driver.
First, upload these two scripts to your /sdcard:
/sdcard/usb_tether_start.sh:
Code:
#!/system/bin/sh
prevconfig=$(getprop sys.usb.config)
if [ "${prevconfig}" != "${prevconfig#rndis}" ] ; then
echo 'Is tethering already active?' >&2
exit 1
fi
echo "${prevconfig}" > /cache/usb_tether_prevconfig
setprop sys.usb.config 'rndis,adb'
until [ "$(getprop sys.usb.state)" = 'rndis,adb' ] ; do sleep 1 ; done
ip rule add from all lookup main
ip addr flush dev rndis0
ip addr add 192.168.2.1/24 dev rndis0
ip link set rndis0 up
iptables -t nat -I POSTROUTING 1 -o rmnet0 -j MASQUERADE
echo 1 > /proc/sys/net/ipv4/ip_forward
dnsmasq --pid-file=/cache/usb_tether_dnsmasq.pid --interface=rndis0 --bind-interfaces --bogus-priv --filterwin2k --no-resolv --domain-needed --server=8.8.8.8 --server=8.8.4.4 --cache-size=1000 --dhcp-range=192.168.2.2,192.168.2.254,255.255.255.0,192.168.2.255 --dhcp-lease-max=253 --dhcp-authoritative --dhcp-leasefile=/cache/usb_tether_dnsmasq.leases < /dev/null
/sdcard/usb_tether_stop.sh:
Code:
#!/system/bin/sh
if [ ! -f /cache/usb_tether_prevconfig ] ; then
echo '/cache/usb_tether_prevconfig not found. Is tethering really active?' >&2
exit 1
fi
if [ -f /cache/usb_tether_dnsmasq.pid ] ; then
kill "$(cat /cache/usb_tether_dnsmasq.pid)"
rm /cache/usb_tether_dnsmasq.pid
fi
echo 0 > /proc/sys/net/ipv4/ip_forward
iptables -t nat -D POSTROUTING 1
ip link set rndis0 down
ip addr flush dev rndis0
ip rule del from all lookup main
setprop sys.usb.config "$(cat /cache/usb_tether_prevconfig)"
rm /cache/usb_tether_prevconfig
while [ "$(getprop sys.usb.state)" = 'rndis,adb' ] ; do sleep 1 ; done
To start USB tethering:
Code:
adb shell "su -c 'sh /sdcard/usb_tether_start.sh'"
Grant the superuser request on the phone if one appears.
If you're on Linux, you'll see a new network interface appear (probably called "usb0"). Bring the link up on that interface (ip link set usb0 up), run a DHCP client, and you're all set!
If you're on Windows, it will probably Just Work™.
To stop USB tethering:
Code:
adb shell "su -c 'sh /sdcard/usb_tether_stop.sh'"
Again, grant the superuser request on the phone if one appears.
That's it!
Click to expand...
Click to collapse

what is the difference between this and native tethering?

for rooted stock roms
http://forum.xda-developers.com/showthread.php?t=2224083
this is the by far the easiest..

[mod][tweaks]*liquid speed*[ics,jb]][28/09/2013]][prop]

Code:
* Your warranty is now void..
* I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, you getting dumped or you getting fired because your phone
* bootloops and alarm does not go off. Please do some research if you have any
* YOU are choosing to make these modifications.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Requirements :-
- Android 4.0+
- Custom kernel (with init.d support)
- Root and Busybox installed
- 3MB of free space in "/system".
Feature :-
- Full memory management.
- kernel tweaks and improvements for better performance and battery life.
- Entropy generator engine used to reduce lags.
- Zipalign apps in "/system" and apps in "/data" every 48 hours which result in less RAM usage.
- Sqlite optimizations and faster database access.
- CPU governors tweaks and improvements for better performance and battery life.
- Increased SD Card read-ahead cache to 2048 KB .
- Ad blocking.
- Default.prop tweaks and improvements.
- Cleans log files and tombstones at every boot.
- Many other tweaks for better performance and battery life!
Steps :-
- go to system/etc/init.d/delete all files in it
- Download the zip
- Flash zip via recovery
- Feel the difference (1st boot may take time)
User praise :-
Code:
$lim $hady :- Awesome....!!!!!!!!!
One word Awesome....!!!!
Playing Subway Surfers without a Single Lag... Feels like my phone is running on GB..
Code:
skaloyskie :- Thanks man! I've noticed that my phone suffered less lag even I'm using Opera mini (Multi-tabbed browsing) and downloading movies via torrent. Nice share!
Code:
iossux :- U rock bro really boosted my performance
Some part of my Default .prop
#enable harware egl profile
debug.egl.profiler=1
#16BIT transparency , Smother Scrolling
persist.sys.use_16bpp_alpha=1
#debug.composition.type=gpu
debug.composition.type=c2d
debug.performance.tuning=1
debug.enabletr=true
debug.qctwa.preservebuf=1
dev.pm.dyn_samplingrate=1
video.accelerate.hw=1
ro.vold.umsdirtyratio=20
debug.overlayui.enable=1
debug.egl.hw=1
ro.fb.mode=1
hw3d.force=1
persist.sys.composition.type=c2d
persist.sys.ui.hw=1
ro.sf.compbypass.enable=0
#Enable tile rendering
debug.enabletr=true
persist.sys.composition.type=gpu
#3d performance
persist.android.strictmode=0
ro.min_pointer_dur=1
ro.secure=0
#Media quality
ro.media.enc.jpeg.quality=100
ro.media.dec.jpeg.memcap=8000000
ro.media.enc.hprof.vid.bps=8000000
ro.media.dec.aud.wma.enabled=1
ro.media.dec.vid.wmv.enabled=1
ro.media.cam.preview.fps=0
ro.media.codec_priority_for_thumb=so
#Speed liquid
persist.service.lgospd.enable=0
persist.service.pcsync.enable=0
# For sensor sleep control
ro.ril.sensor.sleep.control=1
#loggers
ro.config.htc.nocheckin=1
ro.config.nocheckin=1
profiler.force_disable_ulog=1
profiler.force_disable_err_rpt=1
#Scrolling
windowsmgr.max_events_per_sec=90
ro.max.fling_velocity=12000
ro.min.fling_velocity=8000
#battery saver
ro.ril.disable.power.collapse=1
pm.sleep_mode=1
usb_wakeup=enable
proximity_incall=enable
power_supply.wakeup=enable
ro.config.hw_power_saving=1
ro.config.hw_fast_dormancy=1
ro.config.hw_quickpoweron=true
persist.sys.use_dithering=0
#improve battery under no signal -- need test
ro.mot.eri.losalert.delay=1000
#net speedtweaks
net.tcp.buffersize.default=4096,87380,256960,4096, 16384,256960
net.tcp.buffersize.wifi=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.umts=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.gprs=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.edge=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.hspda=4096,87380,256960,4096,16 384,256960
net.tcp.buffersize.hspa=4096,87380,256960,4096,163 84,256960
#streaming faster
media.stagefright.enable-player=true
media.stagefright.enable-meta=true
media.stagefright.enable-scan=true
media.stagefright.enable-http=true
media.stagefright.enable-aac=true
media.stagefright.enable-qcp=true
media.stagefright.enable-record=true
Some part of INIT.D :-
# Disable Logger
busybox rm /dev/log/main
# Busybox Remounting
busybox mount -o remount,noatime,barrier=0,nobh /system
busybox mount -o remount,noatime,barrier=0,nobh /data
busybox mount -o remount,noatime,barrier=0,nobh /cache
echo "Mounted Busybox"
# clearing junk files
busybox find /data/data -type d -iname "*cache*" -exec busybox rm -f {}/* ';' -exec echo "Cleared {}" ';'
rm -f /data/local/*.apk
rm -f /data/local/tmp/*.apk
rm -f /data/*.log
rm -f /data/log/*.log
rm -f /cache/*.*
rm -f /cache/recovery/*.*
rm -f /data/system/dropbox/*.txt
rm -f /data/backup/pending/*.tmp
rm -f /data/tombstones/*.*
echo "Junk cleared"
# Defrag Database Files
for i in \
`find /data -iname "*.db"`
do \
sqlite3 $i 'VACUUM;';
# Move Dalvik-Cache To Cache Partition
CACHESIZE=$(df -k /cache | tail -n1 | tr -s ' ' | cut -d ' ' -f2)
if [ $CACHESIZE -gt 4000 ]
then
echo "Large cache detected, moving dalvik-cache to /cache"
if [ ! -d /cache/dalvik-cache ]
then
busybox rm -rf /cache/dalvik-cache /data/dalvik-cache
mkdir /cache/dalvik-cache /data/dalvik-cache
fi
busybox chown 1000:1000 /cache/dalvik-cache
busybox chmod 0771 /cache/dalvik-cache
busybox mount -o bind /cache/dalvik-cache /data/dalvik-cache
busybox chown 1000:1000 /data/dalvik-cache
busybox chmod 0771 /data/dalvik-cache
else
echo "Small cache detected, dalvik-cache will remain on /data"
fi
echo "Moved Dalvik-Cache To Cache Partition"
# Mod: Battery
setprop wifi.supplicant_scan_interval=180
setprop pm.sleep_mode=1
setprop ro.ril.disable.power.collapse=1
# Mod: Performance
setprop ro.kernel.android.checkjni=0
setprop persist.sys.purgeable_assets=1
setprop debug.sf.hw=1
setprop ro.telephony.call_ring.delay=0
setprop ro.foreground_app_mem=1280
setprop ro.visible_app_mem=2560
setprop ro.perceptible_app_mem=3840
setprop ro.heavy_weight_app_mem=6400
setprop ro.secondary_server_mem=7680
setprop ro.backup_app_mem=8960
setprop ro.home_app_mem=2048
setprop ro.hidden_app_mem=12800
setprop ro.content_provider_mem=15360
setprop ro.empty_app_mem=20480
setprop ro.foreground_app_adj=0
setprop ro.visible_app_adj=1
setprop ro.perceptible_app_adj=2
setprop ro.heavy_weight_app_adj=4
setprop ro.secondary_server_adj=5
setprop ro.backup_app_adj=6
setprop ro.home_app_adj=1
setprop ro.hidden_app_min_adj=7
setprop ro.empty_app_adj=15
# Mod: Graphics
setprop debug.performance.tuning=1
setprop video.accelerate.hw=1
setprop ro.media.dec.jpeg.memcap=8000000
setprop ro.media.enc.hprof.vid.bps=8000000
setprop persist.sys.use_dithering 1
# Touch Screen Sensitivity
echo 7035 > /sys/class/touch/switch/set_touchscreen;
echo 8002 > /sys/class/touch/switch/set_touchscreen;
echo 11000 > /sys/class/touch/switch/set_touchscreen;
echo 13060 > /sys/class/touch/switch/set_touchscreen;
echo 14005 > /sys/class/touch/switch/set_touchscreen;
# Renice Apps
renice -20 `pidof com.android.phone`
renice -19 `pidof com.android.inputmethod.latin`
renice -19 `pidof com.swype.android.inputmethod`
renice -17 `pidof com.android.systemui`
renice -9 `pidof com.android.settings`
renice -9 `pidof com.android.vending`
renice -6 `pidof com.sec.android.app.camera`
renice -6 `pidof com.sec.android.app.fm`
renice -6 `pidof com.google.android.apps.maps`
renice -4 `pidof com.google.android.apps.googlevoice`
renice -3 `pidof android.process.media`
# SqLite Optimize
for i in \
`busybox find /data -iname "*.db"`;
do \
/system/xbin/sqlite3 $i 'VACUUM;';
/system/xbin/sqlite3 $i 'REINDEX;';
done;
if [ -d "/dbdata" ]; then
for i in \
`busybox find /dbdata -iname "*.db"`;
do \
/system/xbin/sqlite3 $i 'VACUUM;';
/system/xbin/sqlite3 $i 'REINDEX;';
done;
fi;
if [ -d "/datadata" ]; then
for i in \
`busybox find /datadata -iname "*.db"`;
do \
/system/xbin/sqlite3 $i 'VACUUM;';
/system/xbin/sqlite3 $i 'REINDEX;';
done;
fi;
for i in \
`busybox find /sdcard -iname "*.db"`;
do \
/system/xbin/sqlite3 $i 'VACUUM;';
/system/xbin/sqlite3 $i 'REINDEX;';
done;
echo "SqLite Database Optimized"
echo "System Optimized And Boosted at $( date +"%m-%d-%Y %H:%M:%S" )"
function mountrw {
mount|grep "/system "|grep rw >/dev/null
[ $? -eq 1 ] && mount -o remount,rw $(mount|grep "/system "|awk '{ print $1 }') /system
}
function mountro {
mount|grep "/system "|grep ro >/dev/null
[ $? -eq 1 ] && mount -o remount,ro $(mount|grep "/system "|awk '{ print $1 }') /system
}
echo " Starting package optimization"
echo "Starting ZipAlign $( date +"%m-%d-%Y %H:%M:%S" )"
zipalign -c 4 $apk;
ZIPCHECK=$?;
if [ $ZIPCHECK -eq 1 ]; then
mountrw;
echo ZipAligning $(basename $apk)
zipalign -f 4 $apk /cache/$(basename $apk);
if [ -e /cache/$(basename $apk) ]; then
cp -f -p /cache/$(basename $apk) $apk
rm /cache/$(basename $apk);
else
echo ZipAligning $(basename $apk) Failed DC;
fi;
else
echo Velocity ZipAlign already completed on $apk
fi;
done;
for apk in /data/app/*.apk ; do
zipalign -c 4 $apk;
ZIPCHECK=$?;
if [ $ZIPCHECK -eq 1 ]; then
echo ZipAligning $(basename $apk)
zipalign -f 4 $apk /cache/$(basename $apk);
if [ -e /cache/$(basename $apk) ]; then
cp -f -p /cache/$(basename $apk) $apk
rm /cache/$(basename $apk);
else
echo ZipAligning $(basename $apk) Failed DC
fi;
else
echo Velocity ZipAlign already completed on $apk
fi;
done;
mountro;
echo "ZipAlign finished at $( date +"%m-%d-%Y %H:%M:%S" )"
Tested on Xperia S thnxx to EXBLAZE ​
credits
persanno
exblaze
kuro

Works with trinity kernel and ROM,now testing
Sent from my LT26ii using XDA Premium 4 mobile app

red-Tequila said:
Works with trinity kernel and ROM,now testing
Sent from my LT26ii using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Trinity ROM and kernel already has many tweaks applied in it.. You don't need to try any.. If u have a Stock ROM without any mods, but with some custom kernel, then try this..

sudhindrakv said:
Trinity ROM and kernel already has many tweaks applied in it.. You don't need to try any.. If u have a Stock ROM without any mods, but with some custom kernel, they try this..
Click to expand...
Click to collapse
Trinity Rom has tweaks but they are not enabled by default as in init.d does not run at boot... It never did in his previous roms either, and I don't think he is to bothered to fix it!
Sent from my LT26i using xda premium

Damoedge said:
Trinity Rom has tweaks but they are not enabled by default as in init.d does not run at boot... It never did in his previous roms either, and I don't think he is to bothered to fix it!
Sent from my LT26i using xda premium
Click to expand...
Click to collapse
Yes. Its your choice in Aroma to select which kind of tweaks you need.. Anyway try this.. Do have a backup.. Lets not spam this thread.. There's another thread to discuss about Trinity ROM..

Damoedge said:
Trinity Rom has tweaks but they are not enabled by default as in init.d does not run at boot... It never did in his previous roms either, and I don't think he is to bothered to fix it!
Sent from my LT26i using xda premium
Click to expand...
Click to collapse
Hi, Just like.I.said, Ive added Init.d enabler on. 3.6 via.Settings.apk
Even you install this tweak it will never work, unless you enabled some required perm. For the init.d files
Sent from my LT26ii using xda app-developers app

TrinityHaxxorX said:
Hi, Just like.I.said, Ive added Init.d enabler on. 3.6 via.Settings.apk
Even you install this tweak it will never work, unless you enabled some required perm. For the init.d files
Sent from my LT26ii using xda app-developers app
Click to expand...
Click to collapse
You are referring on your ROM or you genaralise?
If you are using stock ROM, rooted and deodexed I don't see why it shouldn't work (at least some part of it)
Sent from my LT26i using Tapatalk 4

TrinityHaxxorX said:
Even you install this tweak it will never work, unless you enabled some required perm. For the init.d files
Sent from my LT26ii using xda app-developers app
Click to expand...
Click to collapse
So you are saying that this will not work??
Sent from my LT26i using xda premium

Man I doubt about it cause I installed and notice more fluidity,however about bb..
Sent from my LT26ii using XDA Premium 4 mobile app

I still haven't tried but guys, when you try it, test firmly.
Every device will fly after restart - when you restart it - your RAM gets cleared and device will work softer and faster.
Try to see what's happening after one or two hours - don't fall on placebo effect afrer restart.
And please, don't get me wrong, I'm not saying it doesn't work, I haven't tried it yet.
I'm just saying how to test
Sent from my LT26i using Tapatalk 4

Tested. Well done. I report two bugs, some apps does not start automatically after a reboot,like Antitirus,etc. and photos won't open from Album Widget, only from the album itself.Anyway, good job, waiting for a stable version,until then, I'm back to my backup.

sure
Mr.AnakinSkywalker said:
Tested. Well done. I report two bugs, some apps does not start automatically after a reboot,like Antitirus,etc. and photos won't open from Album Widget, only from the album itself.Anyway, good job, waiting for a stable version,until then, I'm back to my backup.
Click to expand...
Click to collapse
as i dont own this device i cannot test it many times on friends mobile
need some tester/devs from this thread

BOSS said:
as i dont own this device i cannot test it many times on friends mobile
need some tester/devs from this thread
Click to expand...
Click to collapse
I understand, at least for now we know two bugs on SONY XPERIA S

Does it work on CM ? haahah newbie question but does it?

uDroid said:
Does it work on CM ? haahah newbie question but does it?
Click to expand...
Click to collapse
I dont think so
Pls read the op
Sent from my LT26i using Tapatalk 4

Rangeeshnathan said:
I dont think so
Pls read the op
Sent from my LT26i using Tapatalk 4
Click to expand...
Click to collapse
im sorry but i tested it and it works i guess.
i feel the difference.

whaiting for XPERIA Z version

[Q] How to change dns in android 4.3

hello,I am using tigra rom android 4.3...I can't change my dns with the usual method,both apps and manual in advanced setting ,,anyone can help me with this?

rulsfabre said:
hello,I am using tigra rom android 4.3...I can't change my dns with the usual method,both apps and manual in advanced setting ,,anyone can help me with this?
Click to expand...
Click to collapse
An article say, The Dns part of the 4.3 OS has been changed significantly, so the usual methode not working anynore

change Dns without root
ayahmayra said:
An article say, The Dns part of the 4.3 OS has been changed significantly, so the usual methode not working anynore
Click to expand...
Click to collapse
There is this app that without root change dns:
set google's dns
play.google.com/store/apps/details?id=com.dnset
pro user set dns:
play.google.com/store/apps/details?id=com.dnsetpro

adfadf89 said:
There is this app that without root change dns:
set google's dns
play.google.com/store/apps/details?id=com.dnset
pro user set dns:
play.google.com/store/apps/details?id=com.dnsetpro
Click to expand...
Click to collapse
thank bro!!!! it's working for me

Change your DNS servers in Android.
You can change the same thing on your rooted Android Device.
[email protected]:/ # ndc resolver flushif -- flushes old DNS servers
[email protected]:/ # ndc resolver flushdefaultif -- flush resolver
[email protected]:/ # ndc resolver setifdns <iface> <domains> <dns1> <dns2> ... -- Add the new servers
[email protected]:/ # ndc resolver setdefaultif -- Set as the default device

rulsfabre said:
hello,I am using tigra rom android 4.3...I can't change my dns with the usual method,both apps and manual in advanced setting ,,anyone can help me with this?
Click to expand...
Click to collapse
Change your DNS servers in Android.
You can change the same thing on your rooted Android Device.
With root privileges and a terminal app or (adb shell):
[email protected]:/ # ndc resolver flushif -- flushes old DNS servers
[email protected]:/ # ndc resolver flushdefaultif -- flush resolver
[email protected]:/ # ndc resolver setifdns <iface> <domains> <dns1> <dns2> ... -- Add the new servers
[email protected]:/ # ndc resolver setdefaultif -- Set as the default device
---
If you liked my post, then don't hesitate to hit the thanks button

I've been struggling with this issue in these days.
As you said, something is significantly changed in Android 4.3+
None of programs I tried so far worked.
This is my solution, not noob friendly!
adb shell
su
mount -o remount,rw /system
vi /etc/dhcpcd/dhcpcd-hooks/20-dns.conf
in vi editor you'll see set_dns_props() funtion which sets up dns servers when a wifi connection is established.
Code:
set_dns_props()
{
case "${new_domain_name_servers}" in
"") return 0;;
esac
count=1
for i in 1 2 3 4; do
setprop dhcp.${intf}.dns${i} ""
done
count=1
for dnsaddr in ${new_domain_name_servers}; do
setprop dhcp.${intf}.dns${count} ${dnsaddr}
count=$(($count + 1))
done
separator=" "
if [ -z "$new_domain_name" ]; then
separator=""
else
if [ -z "$new_domain_search" ]; then
separator=""
fi
fi
setprop dhcp.${interface}.domain "${new_domain_name}$separator${new_domain_search}"
}
as you see new_domain_name_servers contains dns servers array
add this line
Code:
new_domain_name_servers="8.8.4.4 8.8.8.8 $new_domain_name_servers"
function will be like below
Code:
set_dns_props()
{
new_domain_name_servers="8.8.4.4 8.8.8.8 $new_domain_name_servers"
case "${new_domain_name_servers}" in
"") return 0;;
esac
count=1
for i in 1 2 3 4; do
setprop dhcp.${intf}.dns${i} ""
done
count=1
for dnsaddr in ${new_domain_name_servers}; do
setprop dhcp.${intf}.dns${count} ${dnsaddr}
count=$(($count + 1))
done
separator=" "
if [ -z "$new_domain_name" ]; then
separator=""
else
if [ -z "$new_domain_search" ]; then
separator=""
fi
fi
setprop dhcp.${interface}.domain "${new_domain_name}$separator${new_domain_search}"
}
Edit: in vi editor
press i to edit mode. Make your changes then press esc. type :wq to write/exit

@ [email protected]:
Thank you very much, works in 4.4.2 on a LG G2, too.
(And if you use Root-Explorer, you don't need adb and vi, the File-Editor of Root-Explorer is easier IMHO.)
Needed that to use a home dnsmasq Server to access an internal owncloud Server with a router without NAT-Loopback.
PS:
A reboot is needed to make that work.

Override DNS for KitKat
bazon said:
@ [email protected]:
Thank you very much, works in 4.4.2 on a LG G2, too.
(And if you use Root-Explorer, you don't need adb and vi, the File-Editor of Root-Explorer is easier IMHO.)
Needed that to use a home dnsmasq Server to access an internal owncloud Server with a router without NAT-Loopback.
PS:
A reboot is needed to make that work.
Click to expand...
Click to collapse
Does it reliably work on 4.4.2? I'm surprised because I wrote an application which use the "ndc" command to override the DNS values.
I thought it was the only way...
P.S. My application is called "Override DNS for KitKat" and it's on the Play Store.

bazon said:
@ [email protected]:
Thank you very much, works in 4.4.2 on a LG G2, too.
(And if you use Root-Explorer, you don't need adb and vi, the File-Editor of Root-Explorer is easier IMHO.)
Needed that to use a home dnsmasq Server to access an internal owncloud Server with a router without NAT-Loopback.
PS:
A reboot is needed to make that work.
Click to expand...
Click to collapse
I am a terminal guy
Reboot is not required, just restart your wifi.
m.chinni said:
Does it reliably work on 4.4.2? I'm surprised because I wrote an application which use the "ndc" command to override the DNS values.
I thought it was the only way...
P.S. My application is called "Override DNS for KitKat" and it's on the Play Store.
Click to expand...
Click to collapse
Yes it does work on 4.4.2

Two additions:
1. IMPORTANT!
If you - as I proposed before - use Root Explorer to edit the 20-dns.conf file, Root Explorer will create a backup file called 20-dns.conf-bak. This file is parsed as well! So you have to delete that backup file if you don't want to have double definitions..
(I notices this, as my own DNSMASQ Server 192.168.2.222 was dns1 and dns2 as well...)
2. In order to avoid waiting for a timeout in another WLAN than my home WLAN, I wanted this custom DNS settings only to be applied in my own WLAN. So I wanted to include an if-condition that is only applied in my home-WLAN. As 20-dns.conf is some sort of bash file, I used the getprop function to find out how I could identify my own network. Unfortunately, there is no way to get the SSID, but something nearly as good: the Domain!
Type in a terminal on your android device:
Code:
$ getprop | grep domain
[dhcp.wlan0.domain]: [Speedport_W_921V_1_35_000]
(in my case.)
So I changed my /etc/dhcpcd/dhcpcd-hooks/20-dns.conf to only apply a custom DNS for that domain:
Code:
# Set net.<iface>.dnsN properties that contain the
# DNS server addresses given by the DHCP server.
if [[ $interface == p2p* ]]
then
intf=p2p
else
intf=$interface
fi
set_dns_props()
{
if [ "$new_domain_name" == "Speedport_W_921V_1_35_000" ]
then new_domain_name_servers="192.168.2.222 ${new_domain_name_servers}"
fi
case "${new_domain_name_servers}" in
"") return 0;;
esac
count=1
for i in 1 2 3 4; do
setprop dhcp.${intf}.dns${i} ""
done
count=1
for dnsaddr in ${new_domain_name_servers}; do
setprop dhcp.${intf}.dns${count} ${dnsaddr}
count=$(($count + 1))
done
separator=" "
if [ -z "$new_domain_name" ]; then
separator=""
else
if [ -z "$new_domain_search" ]; then
separator=""
fi
fi
setprop dhcp.${interface}.domain "${new_domain_name}$separator${new_domain_search}"
}
unset_dns_props()
{
for i in 1 2 3 4; do
setprop dhcp.${intf}.dns${i} ""
done
setprop dhcp.${interface}.domain ""
}
case "${reason}" in
BOUND|INFORM|REBIND|REBOOT|RENEW|TIMEOUT) set_dns_props;;
EXPIRE|FAIL|IPV4LL|RELEASE|STOP) unset_dns_props;;
esac
(you see the if-condition with the domain added...)
You can watch the settings with
Code:
$ getprop | grep dns
The settings are applied after a connection change, as [email protected] stated right.
PS: I don't use a Galaxy Note, but a LG G2, and not Android 4.3, but 4.4.
This seems to work in general, maybe the thread is better located in a general section than in a device-specific section?

Change DNS on kk 4.4.2 on 3G or 4G
Hello guys
i have been searching for a way to change my dns on kk 4.4.2 while on mobile date network but no luck is that anyone can help me to do that plz.
Thanks

Any methods that work for lollipop?

The script worked for my Samsung GS2 but my Moto XT1644 doesn't have a system/etc/dhcpcd directory. Is it OK to create the directory tree and copy a downloaded 20-dns.conf script into it? If so, would I need to set permissions for the modified script?

[mod][script] crystal clear 2/1/14

Welcome back to Crystal Clear!
You may have seen this mod in the past and it's back and improved. The Crystal Clear script has one goal and that's to make your device's screen more visually appealing. It's about better color saturation, contrast and an overall smoother image.
Don't expect your display to look like the newest high end device with an ultra HD display after flashing this. Crystal Clear provides a subtle visual experience and gives you the following...
- Higher color saturation.
- Better contrast.
- smoother image.
- Native multi sample anti-aliasing.
INSTALL INSTRUCTIONS!
1. Download the zip file.
2. Flash in recovery.
3. Use terminal emulator and type the following...
su
crystal
The Crystal Clear script will not survive a reboot and is designed to be initiated only when wanted.
UNINSTALL INSTRUCTIONS!
Use root explorer and delete /system/xbin/crystal
TESTED ON
TW 4.3
Should work just as well on AOSP
DOWNLOAD!
http://www.androidfilehost.com/?fid=23329332407568490

How Crystal Clear was built...
#razz1 Crystal Clear
echo "Installing Crystal Clear"
sleep 3
setprop ro.hwui.text_cache_height 256
setprop ro.hwui.fbo_cache_size 16384
setprop ro.hwui.layer_cache_size 16384
setprop ro.hwui.path_cache_size 16384
setprop ro.hwui.circle_shape_cache_size 16384
setprop ro.hwui.rect_shape_cache_size 16384
setprop ro.hwui.arc_shape_cache_size 16384
setprop ro.hwui.oval_shape_cache_size 16384
setprop ro.hwui.texture_cache_size 16384
setprop ro.hwui.gradient_cache_size 16384
setprop ro.hwui.resource_cache_size 16384
setprop ro.hwui.patch_cache_size 16384
setprop ro.hwui.disable_vsync true
setprop ro.hwui.layer_size 1024
setprop ro.hwui.stencil_buffer_size 9.0
setprop ro.hwui.disable_scissor_opt false
setprop ro.hwui.texture_cache_size 16384
setprop ro.hwui.layer_cache_size 16384
setprop ro.hwui.gradient_cache_size 16384
setprop ro.hwui.path_cache_size 16384
setprop ro.hwui.shape_cache_size 16384
setprop ro.hwui.drop_shadow_cache_size 16384
setprop ro.hwui.fbo_cache_size 16384
setprop ro.hwui.r_buffer_cache_size 16384
setprop hwui.use_gpu_pixel_buffers true
setprop libc.debug.malloc 0
setprop debug.sf.showupdates 0
setprop debug.sf.showcpu 0
setprop debug.sf.showbackground 0
setprop debug.sf.showfps 0
setprop touch.presure.scale 0.001
setprop debug.egl.force_msaa true
setprop persist.sys.use_dithering 1
setprop debug.mdpcomp.maxlayer 3
setprop logcat.live disable
setprop debug.enable.wl_log 0
setprop debug.mdpcomp.logs 0
setprop profiler.force_disable_ulog 1
setprop profiler.force_disable_err_rpt 1
echo 32 > /sys/kernel/debug/msm_fb/0/backbuff
echo 32 > /sys/kernel/debug/msm_fb/0/bpp
echo "Install finished"
sleep 1
echo "Done"

FUTURE

Cool.

Will this work in TW 4.1?
Sent from my SPH-L710 using xda app-developers app

vwags said:
Will this work in TW 4.1?
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
Yes but you won't get the full effect of anti-aliasing. You should still notice a difference though.

May need to change my screen saver to notice a difference.
Sent from my SPH-L710 using xda app-developers app

kennyla said:
May need to change my screen saver to notice a difference.
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
I think its most noticeable with a black background

cm12.1-20151109-NIGHTLY-nicki: can't change ttl

hello,
I have installed CM 12.1-20151109-NIGHTLY-nicki, enabled root but can't change ttl value. Is netfilter module missing in kernel?
[email protected]:/ # grep ^ro.cm.version /system/build.prop
ro.cm.version=12.1-20151109-NIGHTLY-nicki
error example:
[email protected]:/ # iptables -t mangle -I POSTROUTING -j TTL --ttl-set 65
iptables: No chain/target/match by that name.
how to add/install the module to the android system to be able modify TTL values?
[email protected]:/ # iptables -t mangle --list|grep -i ttl
1|[email protected]:/ #
It seems to be not avaialble in the CM12.1
when I checked it on my asus zeonfon2 runing on stock Android 5.0, the module is there and I can modify TTLs.
[email protected]:/ # iptables -t mangle --list|grep -i ttl
TTL all -- anywhere anywhere TTL set to 65
TTL all -- anywhere anywhere TTL set to 65
TTL all -- anywhere anywhere TTL set to 65