diff --git a/examples/platform/posix/logging.c b/examples/platform/posix/logging.c
index c11fdb95e..83ffdc293 100644
--- a/examples/platform/posix/logging.c
+++ b/examples/platform/posix/logging.c
@@ -50,63 +50,64 @@ void otPlatLog(otLogLevel aLogLevel, otLogRegion aLogRegion, const char *aFormat
     switch (aLogLevel)
     {
     case kLogLevelNone:
-        printf("NONE ");
+        fprintf(stderr, "NONE ");
         break;
 
     case kLogLevelCrit:
-        printf("CRIT ");
+        fprintf(stderr, "CRIT ");
         break;
 
     case kLogLevelWarn:
-        printf("WARN ");
+        fprintf(stderr, "WARN ");
         break;
 
     case kLogLevelInfo:
-        printf("INFO ");
+        fprintf(stderr, "INFO ");
         break;
 
     case kLogLevelDebg:
-        printf("DEBG ");
+        fprintf(stderr, "DEBG ");
         break;
     }
 
     switch (aLogRegion)
     {
     case kLogRegionApi:
-        printf("API  ");
+        fprintf(stderr, "API  ");
         break;
 
     case kLogRegionMle:
-        printf("MLE  ");
+        fprintf(stderr, "MLE  ");
         break;
 
     case kLogRegionArp:
-        printf("ARP  ");
+        fprintf(stderr, "ARP  ");
         break;
 
     case kLogRegionNetData:
-        printf("NETD ");
+        fprintf(stderr, "NETD ");
         break;
 
     case kLogRegionIp6:
-        printf("IPV6 ");
+        fprintf(stderr, "IPV6 ");
         break;
 
     case kLogRegionIcmp:
-        printf("ICMP ");
+        fprintf(stderr, "ICMP ");
         break;
 
     case kLogRegionMac:
-        printf("MAC  ");
+        fprintf(stderr, "MAC  ");
         break;
 
     case kLogRegionMem:
-        printf("MEM  ");
+        fprintf(stderr, "MEM  ");
         break;
     }
 
     va_start(args, aFormat);
-    vprintf(aFormat, args);
+    vfprintf(stderr, aFormat, args);
+    fprintf(stderr, "\r");
     va_end(args);
 }
 
diff --git a/examples/platform/posix/serial.c b/examples/platform/posix/serial.c
index 5f7ae98f7..8cf488c3f 100644
--- a/examples/platform/posix/serial.c
+++ b/examples/platform/posix/serial.c
@@ -57,6 +57,19 @@ static int s_out_fd;
 static pthread_t s_pthread;
 static sem_t *s_semaphore;
 
+static struct termios original_stdin_termios;
+static struct termios original_stdout_termios;
+
+static void restore_stdin_termios()
+{
+    tcsetattr(s_in_fd, TCSAFLUSH, &original_stdin_termios);
+}
+
+static void restore_stdout_termios()
+{
+    tcsetattr(s_out_fd, TCSAFLUSH, &original_stdout_termios);
+}
+
 ThreadError otPlatSerialEnable(void)
 {
     ThreadError error = kThreadError_None;
@@ -69,6 +82,18 @@ ThreadError otPlatSerialEnable(void)
         s_in_fd = dup(STDIN_FILENO);
         s_out_fd = dup(STDOUT_FILENO);
         dup2(STDERR_FILENO, STDOUT_FILENO);
+
+        if (isatty(s_in_fd))
+        {
+            tcgetattr(s_in_fd, &original_stdin_termios);
+            atexit(&restore_stdin_termios);
+        }
+
+        if (isatty(s_out_fd))
+        {
+            tcgetattr(s_out_fd, &original_stdin_termios);
+            atexit(&restore_stdout_termios);
+        }
     }
     else
     {
@@ -106,7 +131,6 @@ ThreadError otPlatSerialEnable(void)
     {
         // get current configuration
         VerifyOrExit(tcgetattr(s_in_fd, &termios) == 0, perror("tcgetattr"); error = kThreadError_Error);
-        s_in_termios = termios;
 
         // turn off input processing
         termios.c_iflag &= ~(IGNBRK | BRKINT | ICRNL | INLCR | PARMRK | INPCK | ISTRIP | IXON);
@@ -116,7 +140,7 @@ ThreadError otPlatSerialEnable(void)
 
         // turn off character processing
         termios.c_cflag &= ~(CSIZE | PARENB);
-        termios.c_cflag |= CS8;
+        termios.c_cflag |= CS8|HUPCL|CREAD|CLOCAL;
 
         // return 1 byte at a time
         termios.c_cc[VMIN]  = 1;
@@ -135,14 +159,13 @@ ThreadError otPlatSerialEnable(void)
     {
         // get current configuration
         VerifyOrExit(tcgetattr(s_out_fd, &termios) == 0, perror("tcgetattr"); error = kThreadError_Error);
-        s_out_termios = termios;
 
         // turn off output processing
         termios.c_oflag = 0;
 
         // turn off character processing
         termios.c_cflag &= ~(CSIZE | PARENB);
-        termios.c_cflag |= CS8;
+        termios.c_cflag |= CS8|HUPCL|CREAD|CLOCAL;
 
         // configure baud rate
         VerifyOrExit(cfsetospeed(&termios, B115200) == 0, perror("cfsetospeed"); error = kThreadError_Error);
@@ -167,18 +190,8 @@ ThreadError otPlatSerialDisable(void)
 {
     ThreadError error = kThreadError_None;
 
-    if (isatty(s_out_fd))
-    {
-        tcsetattr(s_out_fd, TCSANOW, &s_out_termios);
-    }
-
-    if (isatty(s_in_fd))
-    {
-        tcsetattr(s_in_fd, TCSANOW, &s_in_termios);
-    }
-
-    close(s_out_fd);
     close(s_in_fd);
+    close(s_out_fd);
 
     return error;
 }
diff --git a/src/cli/cli_serial.cpp b/src/cli/cli_serial.cpp
index f38084be4..2e6fd884f 100644
--- a/src/cli/cli_serial.cpp
+++ b/src/cli/cli_serial.cpp
@@ -32,6 +32,7 @@
  */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 
 #include <cli/cli.hpp>
@@ -101,6 +102,10 @@ void Serial::ReceiveTask(void)
 
             break;
 
+        case 3: // CTRL-C
+            exit(1);
+            break;
+
         case '\b':
         case 127:
             otPlatSerialSend(sEraseString, sizeof(sEraseString));