diff --git a/stratum/client.cpp b/stratum/client.cpp
index 4281737..223763c 100644
--- a/stratum/client.cpp
+++ b/stratum/client.cpp
@@ -442,7 +442,7 @@ bool client_auth_by_workers(YAAMP_CLIENT *client)
 //		source = new YAAMP_SOURCE;
 //		memset(source, 0, sizeof(YAAMP_SOURCE));
 //
-//		strncpy(source->ip, client->sock->ip, 1024);
+//		strncpy(source->ip, client->sock->ip, 64);
 //		source->speed = 1;
 //
 //		g_list_source.AddTail(source);
diff --git a/stratum/client.h b/stratum/client.h
index f2d150d..c58260b 100644
--- a/stratum/client.h
+++ b/stratum/client.h
@@ -5,12 +5,12 @@
 //	int count;
 //	double speed;
 //
-//	char ip[1024];
+//	char ip[64];
 //};
 
 struct YAAMP_ALGO
 {
-	char name[1024];
+	char name[64];
 	YAAMP_HASH_FUNCTION hash_function;
 
 	double diff_multiplier;
diff --git a/stratum/client_core.cpp b/stratum/client_core.cpp
index c7732a7..08f4098 100644
--- a/stratum/client_core.cpp
+++ b/stratum/client_core.cpp
@@ -126,6 +126,10 @@ void client_block_ip(YAAMP_CLIENT *client, const char *reason)
 {
 	char buffer[1024];
 	sprintf(buffer, "iptables -A INPUT -s %s -p tcp --dport %d -j REJECT", client->sock->ip, g_tcp_port);
+	if(strcmp("0.0.0.0", client->sock->ip) == 0) return;
+	if(strstr(client->sock->ip, "192.168.")) return;
+	if(strstr(client->sock->ip, "127.0.0.")) return;
+
 	int s = system(buffer);
 	stratumlog("%s: %s blocked (%s)\n", g_stratum_algo, client->sock->ip, reason);
 }
@@ -134,8 +138,12 @@ void client_block_ipset(YAAMP_CLIENT *client, const char *ipset_name)
 {
 	char buffer[1024];
 	sprintf(buffer, "ipset -q -A %s %s", ipset_name, client->sock->ip);
+	if(strcmp("0.0.0.0", client->sock->ip) == 0) return;
+	if(strstr(client->sock->ip, "192.168.")) return;
+	if(strstr(client->sock->ip, "127.0.0.")) return;
+
 	int s = system(buffer);
-	stratumlog("%s: %s blocked via ipset %s\n", g_stratum_algo, client->sock->ip, ipset_name);
+	stratumlog("%s: %s blocked via ipset %s %s\n", g_stratum_algo, client->sock->ip, ipset_name, client->username);
 }
 
 bool client_reset_multialgo(YAAMP_CLIENT *client, bool first)
diff --git a/stratum/socket.cpp b/stratum/socket.cpp
index 107b0ac..b708f96 100644
--- a/stratum/socket.cpp
+++ b/stratum/socket.cpp
@@ -24,7 +24,7 @@ YAAMP_SOCKET *socket_initialize(int sock)
 	memset(&name, 0, len);
 
 	int res = getpeername(s->sock, (struct sockaddr *)&name, &len);
-	inet_ntop(AF_INET, &name.sin_addr, s->ip, 1024);
+	inet_ntop(AF_INET, &name.sin_addr, s->ip, 64);
 
 	res = getsockname(s->sock, (struct sockaddr *)&name, &len);
 	s->port = ntohs(name.sin_port);
diff --git a/stratum/socket.h b/stratum/socket.h
index 75a0421..c169e33 100644
--- a/stratum/socket.h
+++ b/stratum/socket.h
@@ -3,7 +3,7 @@
 
 struct YAAMP_SOCKET
 {
-	char ip[1024];
+	char ip[64];
 	int port;
 
 //	pthread_mutex_t mutex;