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I've just started learning the basics of sockets (Linux). I tried my hand at a small example, but it doesn't work and I have no idea what's wrong. I get a "Connection Refused" error message. Here's my code: #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <netinet/ip.h> #include <stdio.h> #include <string.h> #include <errno.h> int main() { int c; c = socket(AF_INET, SOCK_STREAM, 0); if (c < 0) { printf("Error in creating socket! %s\n", strerror(errno)); return 1; } struct sockaddr_in server; memset(&server, 0, sizeof(server)); server.sin_port = htons(1234); server.sin_family = AF_INET; server.sin_addr.s_addr = inet_addr("127.0.0.1"); //local host if (connect(c, (struct sockaddr *)&server, sizeof(server)) < 0) { // Here is my error printf("Error when connecting! %s\n",strerror(errno)); return 1; } while(1) { char msg[100]; printf("Give message: "); fgets(msg, sizeof(msg), stdin); send(c, &msg, sizeof(msg), 0); char resp[100]; recv(c, &resp, sizeof(resp), 0); printf("Received: %s\n", resp); } close(c); } EDIT Of course ! the error was actually in the server. I simply found it weired that the client sent the message, so I narrowed my view, didn't even bother looking back at the server. Since the error seems to be also in my server, I might end up asking another question and linking it here Server was listening to (12345) ...

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