diff --git a/config_sample/blacklist.txt b/config_sample/blacklist.txt
new file mode 100644
index 0000000..a99f075
--- /dev/null
+++ b/config_sample/blacklist.txt
@@ -0,0 +1,3 @@
+{
+    "211.139.136.73":1
+}
\ No newline at end of file
diff --git a/config_sample/config.ini b/config_sample/config.ini
new file mode 100644
index 0000000..ccdad3f
--- /dev/null
+++ b/config_sample/config.ini
@@ -0,0 +1,8 @@
+bind = :53  # the address bind to
+configUpdateInterval = 0  
+upstream = udp:114.114.114.114:53  
+server = domains.txt,udp:8.8.8.8:53
+server = domains.txt,tcp:4.2.2.2:53
+#logfile = error.log
+blacklist = blacklist.txt
+debug = true
diff --git a/config_sample/domains.txt b/config_sample/domains.txt
new file mode 100644
index 0000000..ecc1a2b
--- /dev/null
+++ b/config_sample/domains.txt
@@ -0,0 +1,107 @@
+{
+    "xunlei.com":1,
+    "getlantern.org":1,
+    "greatfire.org":1,
+    "tietuku.com":1,
+    "dw.com":1,
+    "igfw.net":1,
+    "rfa.org":1,
+    "intercomcdn.com":1,
+    "gorillatoolkit.org":1,
+    "shadowsocks.org":1,
+    "openvpn.net":1,
+    "golang.org":1,
+    "reuters.com":1,
+    "lwgod.com":1,
+    "buzzfed.com":1,
+    "chinagfw.org":1,
+    "feedburner.com":1,
+    "bbc.com":1,
+    "fanqianghou.com":1,
+    "qiwen.lu":1,
+    "dropbox.com":1,
+    "laonanren.com":1,
+    "wikipedia.org":1,
+    "powerapple.com":1,
+    "ift.tt":1,
+    "bowenpress.com":1,
+    "assets-cdn.github.com":1,
+    "bx.tl":1,
+    "googlecode.com":1,
+    "gist.github.com":1,
+    "googleapis.com":1,
+    "sharethis.com":1,
+    "googletagservices.com":1,
+    "ablwang.com":1,
+    "githubusercontent.com":1,
+    "wordpress.com":1,
+    "linkedin.com":1,
+    "wsj.net":1,
+    "wsj.com":1,
+    "flickr.com":1,
+    "w3schools.com":1,
+    "hikinggfw.org":1,
+    "imgur.com":1,
+    "akamai.net":1,
+    "outbrain.com":1,
+    "amazonaws.com":1,
+    "wp.com":1,
+    "goo.gl":1,
+    "aboluowang.com":1,
+    "youmaker.com":1,
+    "gravatar.com":1,
+    "cmake.org":1,
+    "sourceforge.net":1,
+    "idv.tw":1,
+    "ntdtv.com":1,
+    "sourceforge.net":1,
+    "fbcdn.net":1,
+    "dw.de":1,
+    "imgur.com":1,
+    "bit.ly":1,
+    "fw.cm":1,
+    "cdninstagram.com":1,
+    "udn.com.tw":1,
+    "instagram.com":1,
+    "ltn.com.tw":1,
+    "wp.com":1,
+    "boxun.com":1,
+    "xys.org":1,
+    "allinfa.com":1,
+    "facebook.net":1,
+    "atgfw.org":1,
+    "pao-pao.net":1,
+    "torproject.org":1,
+    "nytimes.com":1,
+    "ifanqiang.com":1,
+    "googlevideo.com":1,
+    "freeweibo.com":1,
+    "ggpht.com":1,
+    "ytimg.com":1,
+    "renminbao.com":1,
+    "appspot.com":1,
+    "chinadigitaltimes.net":1,
+    "letscorp.net":1,
+    "t.co":1,
+    "dongtaiwang.com":1,
+    "kanzhongguo.com":1,
+    "youtube.com":1,
+    "haxx.se":1,
+    "feedly.com":1,
+    "peacehall.com":1,
+    "voachinese.com":1,
+    "voanews.com":1,
+    "secretchina.com":1,
+    "epochtimes.com":1,
+    "gstatic.com":1,
+    "facebook.com":1,
+    "blogblog.com":1,
+    "blogspot.com":1,
+    "googleusercontent.com":1,
+    "blogger.com":1,
+    "chromium.org":1,
+    "twimg.com":1,
+    "twitter.com":1,
+    "t66y.com":1,
+    "google.com":1
+}