Sing Yu Chan pexcn

# unpack
bsdcpio -id < ../extra.lzma

# repack
find . | cpio -o --format='newc' --owner root:root | lzma > ../extra.lzma

# 4MB
# art: 0x003F0000-0x00400000, 65536 bytes
dd if=full.bin of=art.bin bs=1 count=65536 skip=4128768

# 8MB
# art: 0x007F0000-0x00800000, 65536 bytes
dd if=full.bin of=art.bin bs=1 count=65536 skip=8323072

# 16MB

https://www.google.com/android/uncertified

# disable root at first.

# backup
adb shell sqlite3 /data/data/com.google.android.gsf/databases/gservices.db \"select * from main where name='android_id'\"
# update
adb shell sqlite3 /data/data/com.google.android.gsf/databases/gservices.db \"update main set value='<my_certified_android_id>' where name='android_id'\"
# check

SDCard Write Speed Test

# 64k
dd if=/dev/zero of=test bs=64k count=1638 && rm -f test
dd if=/dev/zero of=test bs=64k count=1638 conv=fdatasync && rm -f test
dd if=/dev/zero of=test bs=64k count=1638 conv=fsync && rm -f test
dd if=/dev/zero of=test bs=64k count=1638 oflag=dsync && rm -f test
# 1024k
dd if=/dev/zero of=test bs=1024k count=100 &amp;&amp; rm -f test

ChinaDNS 的工作流程

ChinaDNS 的上游 DNS 分为 国内 DNS 和 可信 DNS。

工作流程

ChinaDNS 会同时向上游的 DNS 发送请求。
如果 可信 DNS 先返回，则直接采用 可信 DNS 的结果。
如果 国内 DNS 先返回，分两种情况：如果返回的结果是国内的 IP, 则采用；否则丢弃并转而采用 可信 DNS 的结果。

ChinaDNS

Deprecated

git clone https://github.com/pexcn/ChinaDNS.git && pushd ChinaDNS
./autogen.sh
CFLAGS="-O3 -ffast-math" ./configure --enable-static
make
strip src/chinadns.exe
popd

	#!/bin/sh -e
	#
	# Hurricane Electric DDNS script for OpenWrt
	#
	# crontab: /5 * * * INTERFACE=pppoe-wan USE_PEERDNS=1 DOMAIN=example.com KEY=password /usr/bin/he-ddns.sh
	#
	set -o pipefail

	INTERFACE="${INTERFACE:-pppoe-wan}"
	DOMAIN="${DOMAIN:-example.com}"

	#!/sbin/sh
	#
	# Copyright (C) 2018 Unlegacy Android Project
	# Copyright (C) 2018 Svyatoslav Ryhel
	# Copyright (C) 2019 Nick80835
	# Copyright (C) 2019 z3dd3r
	#
	# Made for Hammerhead
	#

	@echo off
	rem Batch file that extracts java from installer
	rem Original topic on stackoverflow:
	rem http://stackoverflow.com/questions/1619662/how-can-i-get-the-latest-jre-jdk-as-a-zip-file-rather-than-exe-or-msi-installe

	setlocal
	if [%1]==[] goto usage
	set fn=%~n1
	7z.exe e %1 .rsrc\1033\JAVA_CAB10\111
	if errorlevel 1 goto err

	#!/bin/bash -xe

	# Replace ******** with your token
	export SIGN_IN_URL=http://m.client.10010.com/SigninApp/signin/querySigninActivity.htm?token=********
	export DAY_SIGN_URL=http://m.client.10010.com/SigninApp/signin/daySign.do
	export SCRIPT_PATH=$(dirname $0)

	echo "$(date +'%Y-%m-%d %T')" >> $SCRIPT_PATH/log.txt

	curl $SIGN_IN_URL \