diff --git a/.gitignore b/.gitignore
index 544caf0..6638998 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,4 +37,4 @@ src/server/stanza.lo
 src/server/xmppclient.lo
 src/client/.dirstamp
 src/client/stabber.lo
-
+src/server/log.lo
diff --git a/Makefile.am b/Makefile.am
index 687a924..7652cef 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5,6 +5,7 @@ sources = \
 	src/server/xmppclient.c src/server/xmppclient.h \
 	src/server/parser.c src/server/parser.h \
     src/server/stanza.c src/server/stanza.h \
+    src/server/log.c src/server/log.h \
     src/client/stabber.c src/client/stabber.h
 
 libstabber_la_LDFLAGS = -export-symbols-regex '^stabber_'
diff --git a/configure-debug b/configure-debug
index 85bfd81..10a63b9 100755
--- a/configure-debug
+++ b/configure-debug
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-./configure CFLAGS='-g3 -O0' CXXFLAGS='-g3 -O0'
+./configure CFLAGS='-g3 -O0' CXXFLAGS='-g3 -O0' --prefix=/usr
diff --git a/runstabber.c b/runstabber.c
index 60ba8e0..9003691 100644
--- a/runstabber.c
+++ b/runstabber.c
@@ -1,6 +1,41 @@
+#include <glib.h>
+#include <stdlib.h>
 #include <stabber.h>
 
-int main(void)
+
+int
+main(int argc , char *argv[])
 {
-    return stabber_start(5230);
+    int port = 0;
+
+    GOptionEntry entries[] =
+    {
+        { "port", 'p', 0, G_OPTION_ARG_INT, &port, "Listen port", NULL },
+        { NULL }
+    };
+
+    GError *error = NULL;
+    GOptionContext *context;
+
+    context = g_option_context_new(NULL);
+    g_option_context_add_main_entries(context, entries, NULL);
+    if (!g_option_context_parse(context, &argc, &argv, &error)) {
+        g_print("%s\n", error->message);
+        g_option_context_free(context);
+        g_error_free(error);
+        return 1;
+    }
+
+    g_option_context_free(context);
+
+    if (port == 0) {
+        port = 5230;
+    }
+
+
+    if (argc == 2) {
+        port = atoi(argv[1]);
+    }
+
+    return stabber_start(port);
 }
diff --git a/src/server/log.c b/src/server/log.c
new file mode 100644
index 0000000..6b8cdac
--- /dev/null
+++ b/src/server/log.c
@@ -0,0 +1,154 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <glib.h>
+#include <glib/gstdio.h>
+
+static FILE *logp;
+static GTimeZone *tz;
+static GDateTime *dt;
+
+gchar *
+_xdg_get_data_home(void)
+{
+    gchar *xdg_data_home = getenv("XDG_DATA_HOME");
+    if (xdg_data_home)
+        g_strstrip(xdg_data_home);
+
+    if (xdg_data_home && (strcmp(xdg_data_home, "") != 0)) {
+        return strdup(xdg_data_home);
+    } else {
+        GString *default_path = g_string_new(getenv("HOME"));
+        g_string_append(default_path, "/.local/share");
+        gchar *result = strdup(default_path->str);
+        g_string_free(default_path, TRUE);
+
+        return result;
+    }
+}
+
+static gchar *
+_get_main_log_file(void)
+{
+    gchar *xdg_data = _xdg_get_data_home();
+    GString *logfile = g_string_new(xdg_data);
+    g_string_append(logfile, "/stabber/logs/stabber");
+    g_string_append(logfile, ".log");
+    gchar *result = strdup(logfile->str);
+    free(xdg_data);
+    g_string_free(logfile, TRUE);
+
+    return result;
+}
+
+gboolean
+_create_dir(char *name)
+{
+    struct stat sb;
+    if (stat(name, &sb) != 0) {
+        if (errno != ENOENT || mkdir(name, S_IRWXU) != 0) {
+            return FALSE;
+        }
+    } else {
+        if ((sb.st_mode & S_IFDIR) != S_IFDIR) {
+            return FALSE;
+        }
+    }
+
+    return TRUE;
+}
+
+gboolean
+_mkdir_recursive(const char *dir)
+{
+    int i;
+    gboolean result = TRUE;
+
+    for (i = 1; i <= strlen(dir); i++) {
+        if (dir[i] == '/' || dir[i] == '\0') {
+            gchar *next_dir = g_strndup(dir, i);
+            result = _create_dir(next_dir);
+            g_free(next_dir);
+            if (!result) {
+                break;
+            }
+        }
+    }
+
+    return result;
+}
+
+void
+log_init(void)
+{
+    gchar *xdg_data = _xdg_get_data_home();
+    GString *log_dir = g_string_new(xdg_data);
+    g_string_append(log_dir, "/stabber/logs");
+    _mkdir_recursive(log_dir->str);
+    g_string_free(log_dir, TRUE);
+    g_free(xdg_data);
+
+    tz = g_time_zone_new_local();
+    gchar *log_file = _get_main_log_file();
+    logp = fopen(log_file, "a");
+    g_chmod(log_file, S_IRUSR | S_IWUSR);
+    free(log_file);
+}
+
+void
+log_println(const char * const msg, ...)
+{
+    va_list arg;
+    va_start(arg, msg);
+    GString *fmt_msg = g_string_new(NULL);
+    g_string_vprintf(fmt_msg, msg, arg);
+    dt = g_date_time_new_now(tz);
+    gchar *date_fmt = g_date_time_format(dt, "%d/%m/%Y %H:%M:%S");
+    fprintf(logp, "%s: %s\n", date_fmt, fmt_msg->str);
+    g_date_time_unref(dt);
+    fflush(logp);
+    g_free(date_fmt);
+    g_string_free(fmt_msg, TRUE);
+    va_end(arg);
+}
+
+void
+log_print(const char * const msg, ...)
+{
+    va_list arg;
+    va_start(arg, msg);
+    GString *fmt_msg = g_string_new(NULL);
+    g_string_vprintf(fmt_msg, msg, arg);
+    dt = g_date_time_new_now(tz);
+    gchar *date_fmt = g_date_time_format(dt, "%d/%m/%Y %H:%M:%S");
+    fprintf(logp, "%s: %s", date_fmt, fmt_msg->str);
+    g_date_time_unref(dt);
+    fflush(logp);
+    g_free(date_fmt);
+    g_string_free(fmt_msg, TRUE);
+    va_end(arg);
+}
+
+void
+log_print_chars(const char * const msg, ...)
+{
+    va_list arg;
+    va_start(arg, msg);
+    GString *fmt_msg = g_string_new(NULL);
+    g_string_vprintf(fmt_msg, msg, arg);
+    fprintf(logp, "%s", fmt_msg->str);
+    fflush(logp);
+    g_string_free(fmt_msg, TRUE);
+    va_end(arg);
+}
+
+void
+log_close(void)
+{
+    g_time_zone_unref(tz);
+    if (logp) {
+        fclose(logp);
+    }
+}
diff --git a/src/server/log.h b/src/server/log.h
new file mode 100644
index 0000000..5013677
--- /dev/null
+++ b/src/server/log.h
@@ -0,0 +1,10 @@
+#ifndef __H_LOG
+#define __H_LOG
+
+void log_init(void);
+void log_close(void);
+void log_println(const char * const msg, ...);
+void log_print(const char * const msg, ...);
+void log_print_chars(const char * const msg, ...);
+
+#endif
diff --git a/src/server/server.c b/src/server/server.c
index eca7528..ae5f082 100644
--- a/src/server/server.c
+++ b/src/server/server.c
@@ -9,6 +9,7 @@
 #include "server/parser.h"
 #include "server/stanza.h"
 #include "server/server.h"
+#include "server/log.h"
 
 #define XML_START "<?xml version=\"1.0\"?>"
 
@@ -29,8 +30,7 @@ listen_for_xmlstart(XMPPClient *client)
     GString *stream = g_string_new("");
     errno = 0;
     while ((read_size = recv(client->sock, buf, 1, 0)) > 0) {
-        printf("%c", buf[0]);
-        fflush(stdout);
+        log_print_chars("%c", buf[0]);
         g_string_append_len(stream, buf, read_size);
         memset(buf, 0, sizeof(buf));
         if (g_strcmp0(stream->str, XML_START) == 0) {
@@ -40,21 +40,23 @@ listen_for_xmlstart(XMPPClient *client)
 
     // error
     if (read_size == -1) {
-        perror("Error receiving on connection");
+        char *errmsg = strerror(errno);
+        log_println("");
+        log_println("Error receiving on connection: %s", errmsg);
+        free(errmsg);
         xmppclient_end_session(client);
         g_string_free(stream, TRUE);
         return -1;
 
     // client closed
     } else if (read_size == 0) {
-        printf("\n%s:%d - Client disconnected.\n", client->ip, client->port);
+        log_println("");
+        log_println("%s:%d - Client disconnected.", client->ip, client->port);
         xmppclient_end_session(client);
         g_string_free(stream, TRUE);
         return -1;
     }
 
-    printf("\n");
-    fflush(stdout);
     return 0;
 }
 
@@ -68,14 +70,14 @@ send_to(XMPPClient *client, const char * const stanza)
         to_send -= sent;
         marker += sent;
     }
-    printf("SENT: %s\n", stanza);
-    fflush(stdout);
+    log_println("SENT: %s", stanza);
 }
 
 void
 stream_end(XMPPClient *client)
 {
-    printf("\n--> Stream end callback fired\n");
+    log_print_chars("\n");
+    log_println("--> Stream end callback fired");
     send_to(client, STREAM_END);
 }
 
@@ -89,9 +91,8 @@ listen_to(XMPPClient *client)
     GString *stream = g_string_new("");
     errno = 0;
     while ((read_size = recv(client->sock, buf, 1, 0)) > 0) {
-        printf("%c", buf[0]);
+        log_print_chars("%c", buf[0]);
         parser_feed(buf, 1);
-        fflush(stdout);
         parser_reset();
         g_string_append_len(stream, buf, read_size);
         if (g_str_has_suffix(stream->str, STREAM_END)) {
@@ -103,14 +104,18 @@ listen_to(XMPPClient *client)
 
     // error
     if (read_size == -1) {
-        perror("Error receiving on connection");
+        char *errmsg = strerror(errno);
+        log_println("");
+        log_println("Error receiving on connection: %s", errmsg);
+        free(errmsg);
         xmppclient_end_session(client);
         g_string_free(stream, TRUE);
         return -1;
 
     // client closed
     } else if (read_size == 0) {
-        printf("\n%s:%d - Client disconnected.\n", client->ip, client->port);
+        log_println("");
+        log_println("%s:%d - Client disconnected.", client->ip, client->port);
         xmppclient_end_session(client);
         g_string_free(stream, TRUE);
         return -1;
@@ -122,17 +127,19 @@ listen_to(XMPPClient *client)
 void
 stream_start_callback(XMPPClient *client)
 {
-    printf("\n--> Stream start callback fired\n");
+    log_print_chars("\n");
+    log_println("--> Stream start callback fired");
     send_to(client, XML_START);
     send_to(client, STREAM_RESP);
     send_to(client, FEATURES);
-    printf("RECV: ");
+    log_print("RECV: ");
 }
 
 void
 auth_callback(XMPPStanza *stanza, XMPPClient *client)
 {
-    printf("\n--> Auth callback fired\n");
+    log_print_chars("\n");
+    log_println("--> Auth callback fired");
     XMPPStanza *query = stanza_get_child_by_ns(stanza, "jabber:iq:auth");
     XMPPStanza *username = stanza_get_child_by_name(query, "username");
     XMPPStanza *password = stanza_get_child_by_name(query, "password");
@@ -143,13 +150,14 @@ auth_callback(XMPPStanza *stanza, XMPPClient *client)
     client->resource = strdup(resource->content->str);
 
     send_to(client, AUTH_RESP);
-    printf("RECV: ");
+    log_print("RECV: ");
 }
 
 int
 server_run(int port)
 {
-    printf("Starting on port: %d...\n", port);
+    log_init();
+    log_println("Starting on port: %d...", port);
 
     struct sockaddr_in server_addr, client_addr;
 
@@ -157,7 +165,9 @@ server_run(int port)
     errno = 0;
     int listen_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_IP); // ipv4, tcp, ip
     if (listen_socket == -1) {
-        perror("Could not create socket");
+        char *errmsg = strerror(errno);
+        log_println("Could not create socket: %s", errmsg);
+        free(errmsg);
         return 0;
     }
 
@@ -169,7 +179,9 @@ server_run(int port)
     errno = 0;
     int ret = bind(listen_socket, (struct sockaddr *)&server_addr, sizeof(server_addr));
     if (ret == -1) {
-        perror("Bind failed");
+        char *errmsg = strerror(errno);
+        log_println("Bind failed: %s", errmsg);
+        free(errmsg);
         return 0;
     }
 
@@ -177,30 +189,34 @@ server_run(int port)
     errno = 0;
     ret = listen(listen_socket, 5);
     if (ret == -1) {
-        perror("Listen failed");
+        char *errmsg = strerror(errno);
+        log_println("Listen failed: %s", errmsg);
+        free(errmsg);
         return 0;
     }
 
-    puts("Waiting for incoming connections...");
+    log_println("Waiting for incoming connections...");
 
     // connection accept
     int c = sizeof(struct sockaddr_in);
     errno = 0;
     int client_socket = accept(listen_socket, (struct sockaddr *)&client_addr, (socklen_t*)&c);
     if (client_socket == -1) {
-        perror("Accept failed");
+        char *errmsg = strerror(errno);
+        log_println("Accept failed: %s", errmsg);
+        free(errmsg);
         return 0;
     }
 
     XMPPClient *client = xmppclient_new(client_addr, client_socket);
     parser_init(client, stream_start_callback, auth_callback);
-    printf("RECV: ");
+    log_print("RECV: ");
     int res = listen_for_xmlstart(client);
     if (res == -1) {
         return 0;
     }
 
-    printf("RECV: ");
+    log_print("RECV: ");
     listen_to(client);
 
     stanza_show_all();
@@ -213,42 +229,7 @@ server_run(int port)
     shutdown(listen_socket, 2);
     close(listen_socket);
 
+    log_close();
+
     return 1;
 }
-
-int
-main(int argc , char *argv[])
-{
-    int port = 0;
-
-    GOptionEntry entries[] =
-    {
-        { "port", 'p', 0, G_OPTION_ARG_INT, &port, "Listen port", NULL },
-        { NULL }
-    };
-
-    GError *error = NULL;
-    GOptionContext *context;
-
-    context = g_option_context_new(NULL);
-    g_option_context_add_main_entries(context, entries, NULL);
-    if (!g_option_context_parse(context, &argc, &argv, &error)) {
-        g_print("%s\n", error->message);
-        g_option_context_free(context);
-        g_error_free(error);
-        return 1;
-    }
-
-    g_option_context_free(context);
-
-    if (port == 0) {
-        port = 5230;
-    }
-
-
-    if (argc == 2) {
-        port = atoi(argv[1]);
-    }
-
-    return server_run(port);
-}
diff --git a/src/server/stanza.c b/src/server/stanza.c
index e651738..f318546 100644
--- a/src/server/stanza.c
+++ b/src/server/stanza.c
@@ -4,6 +4,7 @@
 #include <glib.h>
 
 #include "server/stanza.h"
+#include "server/log.h"
 
 static GList *stanzas;
 
@@ -31,24 +32,24 @@ stanza_new(const char *name, const char **attributes)
 void
 stanza_show(XMPPStanza *stanza)
 {
-    printf("NAME   : %s\n", stanza->name);
+    log_println("NAME   : %s", stanza->name);
 
     if (stanza->content && stanza->content->len > 0) {
-        printf("CONTENT: %s\n", stanza->content->str);
+        log_println("CONTENT: %s", stanza->content->str);
     }
 
     if (stanza->attrs) {
         GList *curr_attr = stanza->attrs;
         while (curr_attr) {
             XMPPAttr *attr = curr_attr->data;
-            printf("ATTR   : %s='%s'\n", attr->name, attr->value);
+            log_println("ATTR   : %s='%s'", attr->name, attr->value);
 
             curr_attr = g_list_next(curr_attr);
         }
     }
 
     if (stanza->children) {
-        printf("CHILDREN:\n");
+        log_println("CHILDREN:");
         GList *curr_child = stanza->children;
         while (curr_child) {
             XMPPStanza *child = curr_child->data;
@@ -65,7 +66,7 @@ stanza_show_all(void)
     while (curr) {
         XMPPStanza *stanza = curr->data;
         stanza_show(stanza);
-        printf("\n");
+        log_println("");
         curr = g_list_next(curr);
     }
 }