diff --git a/index.js b/index.js
index a865134..399f853 100644
--- a/index.js
+++ b/index.js
@@ -1,7 +1,63 @@
-const tool4net = require('./tool4net.js')
-const tool4log = require('./tool4log')
-
-module.exports = {
-  tool4net,
-  tool4log
-}
+const os = require('os')
+const dns = require('dns')
+const util = require('util')
+
+module.exports = {
+
+  /*----------------------------------------------------------------
+  * Network tools
+  ----------------------------------------------------------------*/
+  async dn2ip(host) {
+    // domain name 2 ip
+    if (typeof host === 'string' && host) {
+      var ip = await util
+        .promisify(dns.resolve)(host, 'A')
+        .catch(function (err) {
+          mylog.warn('WARNING : host cannot resolve to ip: ' + host)
+          return null
+        })
+      if (ip && /^\d+\.\d+\.\d+\.\d+$/.test(ip[0])) {
+        return ip[0]
+      }
+    }
+    return null
+  },
+  isPrivateIp(addr) {
+    return (
+      /^(::f{4}:)?10\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
+      /^(::f{4}:)?192\.168\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
+      /^(::f{4}:)?172\.(1[6-9]|2\d|30|31)\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
+      /^(::f{4}:)?127\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
+      /^(::f{4}:)?169\.254\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
+      /^f[cd][0-9a-f]{2}:/i.test(addr) ||
+      /^fe80:/i.test(addr) ||
+      /^::1$/.test(addr) ||
+      /^::$/.test(addr)
+    )
+  },
+  getMyIp() {
+    var publicIp = null
+    var privateIp = null
+    var self = this
+    try {
+      var ifaces = os.networkInterfaces()
+      Object.keys(ifaces).forEach(function (ifname) {
+        ifaces[ifname].forEach(function (iface) {
+          if ('IPv4' === iface.family && iface.internal === false) {
+            //            console.log('ip='+iface.address)
+            if (self.isPrivateIp(iface.address)) {
+              privateIp = iface.address
+              //              console.log('privateIp='+privateIp)
+            } else {
+              publicIp = iface.address
+              //              console.log('publicIp='+publicIp)
+            }
+          }
+        })
+      })
+    } catch (e) {
+      console.log('ERROR in getMyIP(): ' + e.message)
+    }
+    return publicIp || privateIp
+  },
+}
diff --git a/package.json b/package.json
index 2276031..508fc4b 100644
--- a/package.json
+++ b/package.json
@@ -1,18 +1,9 @@
 {
-  "name": "base.tool",
+  "name": "basend-netinfo",
   "version": "1.0.0",
   "description": "",
   "main": "index.js",
-  "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
-  },
-  "repository": {
-    "type": "git",
-    "url": "https://git.faronear.org/npm/base.tool"
-  },
   "author": "",
   "license": "ISC",
-  "dependencies": {
-    "colors": "^1.4.0"
-  }
+  "dependencies": {}
 }
diff --git a/tool4log.js b/tool4log.js
deleted file mode 100644
index d378029..0000000
--- a/tool4log.js
+++ /dev/null
@@ -1,41 +0,0 @@
-const colors = require('colors')
-
-// HBuilder 内置环境的 console 不支持颜色。为了检查是否支持颜色，可测试 uniCloud 是否存在（不存在说明在自己的server环境里），或 require('supports-color')，相应的返回不同的 ccXXX 函数。
-
-module.exports = typeof uniCloud === 'undefined' ? {
-  cclog(...args) {
-    console.log({timeiso: new Date().toJSON()}, ...args)
-  },
-  ccinfo(...args) {
-    console.info({timeiso: new Date().toJSON()}, ...args)
-  },
-  ccerror(...args) { // console.error will appear in pm2's error log
-    console.error({timeiso: new Date().toJSON()}, ...args)
-  },
-  ccwarn(...args) { // console.warn will appear in pm2's error log
-    console.warn({timeiso: new Date().toJSON()}, ...args)
-  },
-  ccdebug(...args) {
-    if ('development'===process.env.NODE_ENV) { // 在server的测试环境下. 注意在 uniCloud 环境下，`process.env.NODE_ENV` 不存在. 如要应用本方法，需要手动设置 `process.env.NODE_ENV`
-      console.log({timeiso: new Date().toJSON()}, ...args)
-    }
-  }
-} : {
-  cclog(...args) {
-    console.log(colors.blue({timeiso: new Date().toJSON()}), ...args)
-  },
-  ccinfo(...args) {
-    console.info(colors.green({timeiso: new Date().toJSON()}), ...args)
-  },
-  ccerror(...args) { // console.error will appear in pm2's error log
-    console.error(colors.red({timeiso: new Date().toJSON()}), ...args)
-  },
-  ccwarn(...args) { // console.warn will appear in pm2's error log
-    console.warn(colors.yellow({timeiso: new Date().toJSON()}), ...args)
-  },
-  ccdebug(...args) {
-    if ('development'===process.env.NODE_ENV) { // 在server的测试环境下. 注意在 uniCloud 环境下，`process.env.NODE_ENV` 不存在. 如要应用本方法，需要手动设置 `process.env.NODE_ENV`
-      console.log(colors.rainbow({timeiso: new Date().toJSON()}), ...args)
-    }
-  }
-}
diff --git a/tool4net.js b/tool4net.js
deleted file mode 100644
index 399f853..0000000
--- a/tool4net.js
+++ /dev/null
@@ -1,63 +0,0 @@
-const os = require('os')
-const dns = require('dns')
-const util = require('util')
-
-module.exports = {
-
-  /*----------------------------------------------------------------
-  * Network tools
-  ----------------------------------------------------------------*/
-  async dn2ip(host) {
-    // domain name 2 ip
-    if (typeof host === 'string' && host) {
-      var ip = await util
-        .promisify(dns.resolve)(host, 'A')
-        .catch(function (err) {
-          mylog.warn('WARNING : host cannot resolve to ip: ' + host)
-          return null
-        })
-      if (ip && /^\d+\.\d+\.\d+\.\d+$/.test(ip[0])) {
-        return ip[0]
-      }
-    }
-    return null
-  },
-  isPrivateIp(addr) {
-    return (
-      /^(::f{4}:)?10\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
-      /^(::f{4}:)?192\.168\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
-      /^(::f{4}:)?172\.(1[6-9]|2\d|30|31)\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
-      /^(::f{4}:)?127\.([0-9]{1,3})\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
-      /^(::f{4}:)?169\.254\.([0-9]{1,3})\.([0-9]{1,3})$/i.test(addr) ||
-      /^f[cd][0-9a-f]{2}:/i.test(addr) ||
-      /^fe80:/i.test(addr) ||
-      /^::1$/.test(addr) ||
-      /^::$/.test(addr)
-    )
-  },
-  getMyIp() {
-    var publicIp = null
-    var privateIp = null
-    var self = this
-    try {
-      var ifaces = os.networkInterfaces()
-      Object.keys(ifaces).forEach(function (ifname) {
-        ifaces[ifname].forEach(function (iface) {
-          if ('IPv4' === iface.family && iface.internal === false) {
-            //            console.log('ip='+iface.address)
-            if (self.isPrivateIp(iface.address)) {
-              privateIp = iface.address
-              //              console.log('privateIp='+privateIp)
-            } else {
-              publicIp = iface.address
-              //              console.log('publicIp='+publicIp)
-            }
-          }
-        })
-      })
-    } catch (e) {
-      console.log('ERROR in getMyIP(): ' + e.message)
-    }
-    return publicIp || privateIp
-  },
-}