diff --git a/examples/dtrace/.#binds.d b/examples/dtrace/.#binds.d
deleted file mode 120000
index bd615d0..0000000
--- a/examples/dtrace/.#binds.d
+++ /dev/null
@@ -1 +0,0 @@
-mark@bluesnoop.local.63414
\ No newline at end of file
diff --git a/examples/dtrace/bindloop.js b/examples/dtrace/bindloop.js
deleted file mode 100644
index 01fc254..0000000
--- a/examples/dtrace/bindloop.js
+++ /dev/null
@@ -1,18 +0,0 @@
-var assert = require('assert');
-
-var ldap = require('../../lib/index');
-
-var client = ldap.createClient({
-  url: 'ldap://localhost:1389'
-});
-
-
-var finished = 0;
-var ITERATIONS = 1024;
-for (var i = 0; i < ITERATIONS; i++) {
-  client.bind('cn=root', 'secret', function(err) {
-    assert.ifError(err);
-    if (++finished === ITERATIONS)
-      client.unbind();
-  });
-}
diff --git a/examples/dtrace/binds.d b/examples/dtrace/binds.d
deleted file mode 100644
index 42cd7e1..0000000
--- a/examples/dtrace/binds.d
+++ /dev/null
@@ -1,12 +0,0 @@
-ldapjs*::bind:entry
-{
-  /*self->start = timestamp;*/
-}
-ldapjs*:::return
-{
-  /*
-    /self->start/
-    @ = quantize(timestamp - self->start);
-    self->start = 0;"
-  */
-}
diff --git a/examples/in_memory.js b/examples/in_memory.js
deleted file mode 100644
index 8d911a9..0000000
--- a/examples/in_memory.js
+++ /dev/null
@@ -1,201 +0,0 @@
-var ldap = require('../lib/index');
-
-
-///--- Shared handlers
-
-function authorize(req, res, next) {
-  if (!req.connection.ldap.bindDN.equals('cn=root'))
-    return next(new ldap.InsufficientAccessRightsError());
-
-  return next();
-}
-
-
-///--- Globals
-
-var SUFFIX = 'o=joyent';
-var db = {};
-
-//ldap.log4js.setLevel('Trace');
-var server = ldap.createServer();
-
-
-
-
-
-server.bind('cn=root', function(req, res, next) {
-  if (req.dn.toString() !== 'cn=root' || req.credentials !== 'secret')
-    return next(new ldap.InvalidCredentialsError());
-
-  res.end();
-  return next();
-});
-
-server.add(SUFFIX, authorize, function(req, res, next) {
-  var dn = req.dn.toString();
-
-  if (db[dn])
-    return next(new ldap.EntryAlreadyExistsError(dn));
-
-  db[dn] = req.toObject().attributes;
-  res.end();
-  return next();
-});
-
-server.bind(SUFFIX, function(req, res, next) {
-  var dn = req.dn.toString();
-  if (!db[dn])
-    return next(new ldap.NoSuchObjectError(dn));
-
-  if (!dn[dn].userpassword)
-    return next(new ldap.NoSuchAttributeError('userPassword'));
-
-  if (db[dn].userpassword !== req.credentials)
-    return next(new ldap.InvalidCredentialsError());
-
-  res.end();
-  return next();
-});
-
-server.compare(SUFFIX, authorize, function(req, res, next) {
-  var dn = req.dn.toString();
-  if (!db[dn])
-    return next(new ldap.NoSuchObjectError(dn));
-
-  if (!db[dn][req.attribute])
-    return next(new ldap.NoSuchAttributeError(req.attribute));
-
-  var matches = false;
-  var vals = db[dn][req.attribute];
-  for (var i = 0; i < vals.length; i++) {
-    if (vals[i] === req.value) {
-      matches = true;
-      break;
-    }
-  }
-
-  res.end(matches);
-  return next();
-});
-
-server.del(SUFFIX, authorize, function(req, res, next) {
-  var dn = req.dn.toString();
-  if (!db[dn])
-    return next(new ldap.NoSuchObjectError(dn));
-
-  delete db[dn];
-
-  res.end();
-  return next();
-});
-
-server.modify(SUFFIX, authorize, function(req, res, next) {
-  var dn = req.dn.toString();
-  if (!req.changes.length)
-    return next(new ldap.ProtocolError('changes required'));
-  if (!db[dn])
-    return next(new ldap.NoSuchObjectError(dn));
-
-  var entry = db[dn];
-
-  for (var i = 0; i < req.changes.length; i++) {
-    mod = req.changes[i].modification;
-    switch (req.changes[i].operation) {
-    case 'replace':
-      if (!entry[mod.type])
-        return next(new ldap.NoSuchAttributeError(mod.type));
-
-      if (!mod.vals || !mod.vals.length) {
-        delete entry[mod.type];
-      } else {
-        entry[mod.type] = mod.vals;
-      }
-
-      break;
-
-    case 'add':
-      if (!entry[mod.type]) {
-        entry[mod.type] = mod.vals;
-      } else {
-        mod.vals.forEach(function(v) {
-          if (entry[mod.type].indexOf(v) === -1)
-            entry[mod.type].push(v);
-        });
-      }
-
-      break;
-
-    case 'delete':
-      if (!entry[mod.type])
-        return next(new ldap.NoSuchAttributeError(mod.type));
-
-      delete entry[mod.type];
-
-      break;
-    }
-  }
-
-  res.end();
-  return next();
-});
-
-server.search(SUFFIX, authorize, function(req, res, next) {
-  var dn = req.dn.toString();
-  if (!db[dn])
-    return next(new ldap.NoSuchObjectError(dn));
-
-  var scopeCheck;
-
-  switch (req.scope) {
-  case 'base':
-    if (req.filter.matches(db[dn])) {
-      res.send({
-        dn: dn,
-        attributes: db[dn]
-      });
-    }
-
-    res.end();
-    return next();
-
-  case 'one':
-    scopeCheck = function(k) {
-      if (req.dn.equals(k))
-        return true;
-
-      var parent = ldap.parseDN(k).parent();
-      return (parent ? parent.equals(req.dn) : false);
-    };
-    break;
-
-  case 'sub':
-    scopeCheck = function(k) {
-      return (req.dn.equals(k) || req.dn.parentOf(k));
-    };
-
-    break;
-  }
-
-  Object.keys(db).forEach(function(key) {
-    if (!scopeCheck(key))
-      return;
-
-    if (req.filter.matches(db[key])) {
-      res.send({
-        dn: key,
-        attributes: db[key]
-      });
-    }
-  });
-
-  res.end();
-  return next();
-});
-
-
-
-///--- Fire it up
-
-server.listen(1389, function() {
-  console.log('LDAP server up at: %s', server.url);
-});
diff --git a/lib/dn.js b/lib/dn.js
index 8cd7a77..45b7cb1 100644
--- a/lib/dn.js
+++ b/lib/dn.js
@@ -21,7 +21,17 @@ function isWhitespace(c) {
   return re.test(c);
 }
 
-function RDN() {}
+function RDN(obj) {
+  var self = this;
+
+  if (obj) {
+    Object.keys(obj).forEach(function(k) {
+      self[k] = obj[k];
+    });
+  }
+}
+
+
 RDN.prototype.toString = function() {
   var self = this;
 
diff --git a/lib/dtrace.js b/lib/dtrace.js
index 7b78bce..15498aa 100644
--- a/lib/dtrace.js
+++ b/lib/dtrace.js
@@ -9,67 +9,64 @@ var dtrace = require('dtrace-provider');
 var SERVER_PROVIDER;
 
 /* Args:
- * 0 -> remoteIP
- * 1 -> bindDN
- * 2 -> req.dn
- * 3..5 -> op specific
+ * 0 -> RequestId (<ip>:<src port>:<msgID>)
+ * 1 -> remoteIP
+ * 2 -> bindDN
+ * 3 -> req.dn
+ * 4,5 -> op specific
  */
 var SERVER_PROBES = {
 
-  // 3: attributes.length
-  add: ['char *', 'char *', 'char *', 'int'],
+  // 4: attributes.length
+  add: ['char *', 'char *', 'char *', 'char *', 'int'],
 
-  bind: ['char *', 'char *', 'char *'],
+  bind: ['char *', 'char *', 'char *', 'char *'],
 
-  // 3: attribute, 4: value
-  compare: ['char *', 'char *', 'char *', 'char *', 'char *'],
+  // 4: attribute, 5: value
+  compare: ['char *', 'char *', 'char *', 'char *', 'char *', 'char *'],
 
-  'delete': ['char *', 'char *', 'char *'],
+  'delete': ['char *', 'char *', 'char *', 'char *'],
 
-  // 3: requestName, 4: requestValue
-  exop: ['char *', 'char *', 'char *', 'char *', 'char *'],
+  // 4: requestName, 5: requestValue
+  exop: ['char *', 'char *', 'char *', 'char *', 'char *', 'char *'],
 
-  // 3: changes.length
-  modify: ['char *', 'char *', 'char *', 'int'],
+  // 4: changes.length
+  modify: ['char *', 'char *', 'char *', 'char *', 'int'],
 
-  // 3: newRdn, 4: deleteOldRdn, 5: newSuperior
-  modifyDN: ['char *', 'char *', 'char *', 'char *', 'int', 'char *'],
+  // 4: newRdn, 5: newSuperior
+  modifyDN: ['char *', 'char *', 'char *', 'char *', 'char *', 'char *'],
 
-  // 3: filter, 4: scope, 5: attributes.length
-  search: ['char *', 'char *', 'char *', 'char *', 'char *', 'int'],
+  // 4: filter, 5: scope
+  search: ['char *', 'char *', 'char *', 'char *', 'char *', 'char *'],
 
-  unbind: ['char *', 'char *', 'char *'],
+  unbind: ['char *', 'char *', 'char *', 'char *'],
 
   // remote IP
   connection: ['char *'],
 
-  // statusCode, matchedDN, error message, remoteAddress, bindDN, req.dn
-  result: ['int', 'char *', 'char *', 'char *', 'char *', 'char *']
+  request: ['char *', 'char *', 'char *', 'char *'],
+
+  // requestId, remoteIp, bindDN, request.dn, statusCode, errorMessage
+  response: ['char *', 'char *', 'char *', 'char *', 'int', 'char *']
 };
 
 
 ///--- API
 
-module.exports = {
+module.exports = function() {
+  if (!SERVER_PROVIDER) {
+    SERVER_PROVIDER = dtrace.createDTraceProvider('ldapjs');
 
-  ServerProbes: SERVER_PROBES,
+    Object.keys(SERVER_PROBES).forEach(function(p) {
+      var args = SERVER_PROBES[p].splice(0);
+      args.unshift(p);
 
+      dtrace.DTraceProvider.prototype.addProbe.apply(SERVER_PROVIDER, args);
+    });
 
-  serverProvider: function() {
-    if (!SERVER_PROVIDER) {
-      SERVER_PROVIDER = dtrace.createDTraceProvider('ldapjs');
-
-      Object.keys(SERVER_PROBES).forEach(function(p) {
-        var args = SERVER_PROBES[p].splice(0);
-        args.unshift(p);
-
-        dtrace.DTraceProvider.prototype.addProbe.apply(SERVER_PROVIDER, args);
-      });
-
-      SERVER_PROVIDER.enable();
-    }
-
-    return SERVER_PROVIDER;
+    SERVER_PROVIDER.enable();
   }
 
-};
+  return SERVER_PROVIDER;
+}();
+
diff --git a/lib/messages/result.js b/lib/messages/result.js
index 8f72785..1d31e4e 100644
--- a/lib/messages/result.js
+++ b/lib/messages/result.js
@@ -8,7 +8,7 @@ var asn1 = require('asn1');
 var LDAPMessage = require('./message');
 
 var Protocol = require('../protocol');
-var dtrace = require('../dtrace').serverProvider();
+var dtrace = require('../dtrace');
 
 
 ///--- Globals
@@ -69,13 +69,17 @@ LDAPResult.prototype.end = function(status) {
   try {
     var self = this;
     this.connection.write(ber);
-    dtrace.fire('result', function() {
-      return [self.status,
-              (self.matchedDN || ''),
-              (self.errorMessage || ''),
-              (self.connection ? self.connection.remoteAddress : ''),
-              (self.connection ? self.connection.ldap.bindDN.toString() : ''),
-              (self.requestDN ? self.requestDN.toString() : '')];
+
+    dtrace.fire('response', function() {
+      var c = self.connection || {ldap: {bindDN: ''}};
+      return [
+        (self.logId || ''),
+        (c.remoteAddress || ''),
+        c.ldap.bindDN.toString(),
+        (self.requestDN ? self.requestDN.toString() : ''),
+        self.status,
+        self.errorMessage
+      ];
     });
   } catch (e) {
     this.log.warn('%s failure to write message %j: %s',
diff --git a/lib/messages/unbind_request.js b/lib/messages/unbind_request.js
index 98a9d18..79f4a1f 100644
--- a/lib/messages/unbind_request.js
+++ b/lib/messages/unbind_request.js
@@ -8,7 +8,7 @@ var asn1 = require('asn1');
 var LDAPMessage = require('./message');
 var LDAPResult = require('./result');
 
-var DN = require('../dn').DN;
+var dn = require('../dn');
 var Protocol = require('../protocol');
 
 
@@ -17,6 +17,8 @@ var Protocol = require('../protocol');
 
 var Ber = asn1.Ber;
 
+var DN = dn.DN;
+var RDN = dn.RDN;
 
 
 ///--- API
@@ -32,8 +34,14 @@ function UnbindRequest(options) {
   options.protocolOp = Protocol.LDAP_REQ_UNBIND;
   LDAPMessage.call(this, options);
 
+  var self = this;
   this.__defineGetter__('type', function() { return 'UnbindRequest'; });
-  this.__defineGetter__('_dn', function() { return new DN([{}]); });
+  this.__defineGetter__('_dn', function() {
+    if (self.connection)
+      return self.connection.ldap.bindDN;
+
+    return new DN([new RDN({cn: 'anonymous'})]);
+  });
 }
 util.inherits(UnbindRequest, LDAPMessage);
 module.exports = UnbindRequest;
diff --git a/lib/server.js b/lib/server.js
index e18fc4d..5db5ec6 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -174,6 +174,25 @@ function noExOpHandler(req, res, next) {
 }
 
 
+function getDTraceHander(op, cb1, cb2) {
+  assert.ok(op);
+
+  return function(req, res, next) {
+    dtrace.fire(op, function() {
+      var c = req.connection;
+      return [
+        req.logId,
+        c.remoteAddress,
+        c.ldap.bindDN.toString(),
+        req.dn.toString(),
+        cb1 ? cb1(req, res) : undefined,
+        cb2 ? cb2(req, res) : undefined
+      ];
+    });
+    return next();
+  };
+}
+
 
 ///--- API
 
@@ -216,7 +235,6 @@ function Server(options) {
 
   EventEmitter.call(this, options);
 
-  this.dtrace = dtrace.serverProvider();
   this.log = options.log4js.getLogger('Server');
   var log = this.log;
 
@@ -228,8 +246,8 @@ function Server(options) {
       c.remotePort = c.fd;
     }
 
-    var rdn = new dn.RDN();
-    rdn.cn = 'anonymous'
+    var rdn = new dn.RDN({cn: 'anonymous'});
+
     c.ldap = {
       id: c.remoteAddress + ':' + c.remotePort,
       config: options,
@@ -268,7 +286,8 @@ function Server(options) {
     setupConnection(c);
     if (log.isTraceEnabled())
       log.trace('new connection from %s', c.ldap.id);
-    self.dtrace.fire('connection', function() { return [c.remoteAddress]; });
+
+    dtrace.fire('connection', function() { return [c.remoteAddress]; });
 
     c.parser = new Parser({
       log4js: options.log4js
@@ -280,6 +299,15 @@ function Server(options) {
       if (log.isDebugEnabled())
         log.debug('%s: message received: req=%j', c.ldap.id, req.json);
 
+      dtrace.fire('request', function() {
+        return [
+          req.logId,
+          c.remoteAddress,
+          c.ldap.bindDN.toString(),
+          req.dn.toString()
+        ];
+      });
+
       var res = getResponse(req);
       if (!res) {
         log.warn('Unimplemented server method: %s', req.type);
@@ -288,6 +316,7 @@ function Server(options) {
       }
 
       res.connection = c;
+      res.logId = req.logId;
       res.requestDN = req.dn;
 
       var chain = self._getHandlerChain(req);
@@ -396,17 +425,11 @@ module.exports = Server;
  * @throws {TypeError} on bad input
  */
 Server.prototype.add = function(name) {
-  var self = this;
-
   var args = Array.prototype.slice.call(arguments, 1);
-  args.unshift(function(req, res, next) {
-    self.dtrace.fire('add', function() {
-      var c = req.connection;
-      return [c.remoteAddress, c.ldap.bindDN.toString(), req.dn.toString(),
-              req.attributes.length];
-    });
-    return next();
-  });
+  args.unshift(getDTraceHander('add',
+                               function(req, res) {
+                                 return req.attributes.length;
+                               }));
 
   return this._mount(Protocol.LDAP_REQ_ADD, name, args);
 };
@@ -423,16 +446,8 @@ Server.prototype.add = function(name) {
  * @throws {TypeError} on bad input
  */
 Server.prototype.bind = function(name) {
-  var self = this;
-
   var args = Array.prototype.slice.call(arguments, 1);
-  args.unshift(function(req, res, next) {
-    self.dtrace.fire('bind', function() {
-      var c = req.connection;
-      return [c.remoteAddress, c.ldap.bindDN.toString(), req.dn.toString()];
-    });
-    return next();
-  });
+  args.unshift(getDTraceHander('bind'));
 
   return this._mount(Protocol.LDAP_REQ_BIND, name, args);
 };
@@ -449,17 +464,14 @@ Server.prototype.bind = function(name) {
  * @throws {TypeError} on bad input
  */
 Server.prototype.compare = function(name) {
-  var self = this;
-
   var args = Array.prototype.slice.call(arguments, 1);
-  args.unshift(function(req, res, next) {
-    self.dtrace.fire('compare', function() {
-      var c = req.connection;
-      return [c.remoteAddress, c.ldap.bindDN.toString(), req.dn.toString(),
-              req.attribute, req.value];
-    });
-    return next();
-  });
+  args.unshift(getDTraceHander('compare',
+                               function(req, res) {
+                                 return req.attribute;
+                               },
+                               function(req, res) {
+                                 return req.value;
+                               }));
 
   return this._mount(Protocol.LDAP_REQ_COMPARE, name, args);
 };
@@ -476,16 +488,8 @@ Server.prototype.compare = function(name) {
  * @throws {TypeError} on bad input
  */
 Server.prototype.del = function(name) {
-  var self = this;
-
   var args = Array.prototype.slice.call(arguments, 1);
-  args.unshift(function(req, res, next) {
-    self.dtrace.fire('delete', function() {
-      var c = req.connection;
-      return [c.remoteAddress, c.ldap.bindDN.toString(), req.dn.toString()];
-    });
-    return next();
-  });
+  args.unshift(getDTraceHander('delete'));
 
   return this._mount(Protocol.LDAP_REQ_DELETE, name, args);
 };
@@ -502,17 +506,14 @@ Server.prototype.del = function(name) {
  * @throws {TypeError} on bad input.
  */
 Server.prototype.exop = function(name) {
-  var self = this;
-
   var args = Array.prototype.slice.call(arguments, 1);
-  args.unshift(function(req, res, next) {
-    self.dtrace.fire('exop', function() {
-      var c = req.connection;
-      return [c.remoteAddress, c.ldap.bindDN.toString(), req.name,
-              req.name, req.value];
-    });
-    return next();
-  });
+  args.unshift(getDTraceHander('exop',
+                               function(req, res) {
+                                 return req.name;
+                               },
+                               function(req, res) {
+                                 return req.value;
+                               }));
 
   return this._mount(Protocol.LDAP_REQ_EXTENSION, name, args, true);
 };
@@ -529,17 +530,11 @@ Server.prototype.exop = function(name) {
  * @throws {TypeError} on bad input
  */
 Server.prototype.modify = function(name) {
-  var self = this;
-
   var args = Array.prototype.slice.call(arguments, 1);
-  args.unshift(function(req, res, next) {
-    self.dtrace.fire('modify', function() {
-      var c = req.connection;
-      return [c.remoteAddress, c.ldap.bindDN.toString(), req.dn.toString(),
-              req.changes.length];
-    });
-    return next();
-  });
+  args.unshift(getDTraceHander('modify',
+                               function(req, res) {
+                                 return req.changes.length;
+                               }));
 
   return this._mount(Protocol.LDAP_REQ_MODIFY, name, args);
 };
@@ -556,18 +551,15 @@ Server.prototype.modify = function(name) {
  * @throws {TypeError} on bad input
  */
 Server.prototype.modifyDN = function(name) {
-  var self = this;
-
   var args = Array.prototype.slice.call(arguments, 1);
-  args.unshift(function(req, res, next) {
-    self.dtrace.fire('modifyDN', function() {
-      var c = req.connection;
-      return [c.remoteAddress, c.ldap.bindDN.toString(), req.dn.toString(),
-              req.newRdn.toString(), (req.deleteOldRdn ? 1 : 0),
-              (req.newSuperior ? req.newSuperior.toString() : '')];
-    });
-    return next();
-  });
+  args.unshift(getDTraceHander('modifyDN',
+                               function(req, res) {
+                                 return req.newRdn.toString();
+                               },
+                               function(req, res) {
+                                 return (req.newSuperior ?
+                                         req.newSuperior.toString() : '');
+                               }));
 
   return this._mount(Protocol.LDAP_REQ_MODRDN, name, args);
 };
@@ -584,18 +576,14 @@ Server.prototype.modifyDN = function(name) {
  * @throws {TypeError} on bad input
  */
 Server.prototype.search = function(name) {
-  var self = this;
-
   var args = Array.prototype.slice.call(arguments, 1);
-  args.unshift(function(req, res, next) {
-    self.dtrace.fire('search', function() {
-      var c = req.connection;
-      return [c.remoteAddress, c.ldap.bindDN.toString(), req.dn.toString(),
-              req.filter.toString(), req.scope, req.attributes.length];
-    });
-    return next();
-  });
-
+  args.unshift(getDTraceHander('search',
+                               function(req, res) {
+                                 return req.scope;
+                               },
+                               function(req, res) {
+                                 return req.filter.toString();
+                               }));
 
   return this._mount(Protocol.LDAP_REQ_SEARCH, name, args);
 };
@@ -611,15 +599,8 @@ Server.prototype.search = function(name) {
  * @throws {TypeError} on bad input
  */
 Server.prototype.unbind = function() {
-  var self = this;
-
   var args = Array.prototype.slice.call(arguments, 0);
-  args.unshift(function(req, res, next) {
-    self.dtrace.fire('unbind', function() {
-      return [c.remoteAddress, c.ldap.bindDN.toString(), c.dn.toString()];
-    });
-    return next();
-  });
+  args.unshift(getDTraceHander('unbind'));
 
   return this._mount(Protocol.LDAP_REQ_UNBIND, 'unbind', args, true);
 };