diff --git a/src/utility/nlsr_logger.cpp b/src/utility/nlsr_logger.cpp
new file mode 100644
index 0000000..804ef98
--- /dev/null
+++ b/src/utility/nlsr_logger.cpp
@@ -0,0 +1,59 @@
+#include "nlsr_logger.hpp"
+
+namespace nlsr
+{
+
+    string
+    NlsrLogger::getEpochTime()
+    {
+        std::stringstream ss;
+        boost::posix_time::ptime time_t_epoch(boost::gregorian::date(1970,1,1));
+        boost::posix_time::ptime now = boost::posix_time::microsec_clock::local_time();
+        boost::posix_time::time_duration diff = now - time_t_epoch;
+        ss<<diff.total_seconds()<<"."<<boost::format("%06i")%(diff.total_microseconds()
+                %1000000);
+        return ss.str();
+    }
+
+    string
+    NlsrLogger::getUserHomeDirectory()
+    {
+        string homeDirPath(getpwuid(getuid())->pw_dir);
+        if( homeDirPath.empty() )
+        {
+            homeDirPath = getenv("HOME");
+        }
+        return homeDirPath;
+    }
+
+    void
+    NlsrLogger::initNlsrLogger(std::string dirPath)
+    {
+        string logDirPath(dirPath);
+        if( dirPath.empty() )
+        {
+            logDirPath=getUserHomeDirectory()+"/nlsrLog";
+        }
+        cout<<"Log Dir Path: "<< logDirPath<<endl;
+        typedef sinks::synchronous_sink< sinks::text_file_backend > file_sink;
+        shared_ptr< file_sink > sink(new file_sink(
+                                         keywords::file_name = logDirPath
+                                                 +"/NLSR%Y%m%d%H%M%S_%3N.log",
+                                         keywords::rotation_size = 128 * 1024 * 1024,
+                                         keywords::time_based_rotation = sinks::file::rotation_at_time_point(12, 0, 0),
+                                         keywords::auto_flush = true
+                                     ));
+        sink->locked_backend()->set_file_collector(sinks::file::make_collector(
+                    keywords::target = logDirPath,
+                    keywords::max_size = 16 * 1024 * 1024 * 1024,
+                    keywords::min_free_space = 128 * 1024 * 1024
+                ));
+        sink->set_formatter(
+            expr::format("%1%: %2%")
+            % getEpochTime()
+            % expr::smessage
+        );
+        logging::core::get()->add_sink(sink);
+    }
+
+}//namespace nlsr