0
votes
3answers
757 views

Source Address / Source Port vs Destination Address / Destination Port

I am new to TCP/IP and trying hard to learn basics. Well, I really wonder about inbound rules and outbound rules of Firewall and concept of source adress:port, destination adress:port. For example I ...
0
votes
1answer
100 views

Firewall between Client and Server - Which ports do you open?

I want to know the following: (exam type question) When you have a client-server system, that uses uncommon ports (e.g. in range 48000 - 49000), and you have a firewall between the client and the ...
0
votes
1answer
913 views

Allow all inbound traffic from specific IP addresses

I am running one of our server applications on Windows 7 and I'm having trouble with the firewall. The application receives various events over TCP from a network device but the connection port varies ...
0
votes
2answers
743 views

Why don't outgoing TCP/IP connections need firewall ports to be opened?

While creating an incoming TCP/IP or UDP connection we need for a firewall port to be opened or to get privilege for the specified port. Why not for outgoing TCP/IP connections?
0
votes
1answer
228 views

FTPS - Cant Open Data Connection over WAN

Here is my setup, 1 Windows 2008 R2 Standard Box /w G6 FTP Server installed G6 is configured to use explicit SSL connections only (TCP:990) 1 WatchGaurd Firebox Firewall (between server and internal ...
2
votes
1answer
5k views

How can I disable any TCP/IP port on a Windows 7 machine?

I need help on finding out how to disable any particular TCP/IP port on a Windows box whenever a need arises. I googled before posting the question and I got links to articles mentioning only ...
2
votes
3answers
3k views

SQL Server Ports

The Microsoft website states The firewall must be configured to permit port 1433 incoming (or the port numbers that SQL Server listens to on TCP/IP), and ports 1024 to 65535 outgoing. Does this ...
3
votes
2answers
3k views

Using localhost TCP/IP communication in a program - always safe?

I have an application which is separated to several parts (processes) communicating over TCP/IP, using a pre-defined port on localhost. Is this always safe? Can some kind of a firewall (corporate, ...