Tagged Questions

0
votes
0answers
28 views

Secure TCP based protocol through an application layer firewall

I have two networks, one considered secure, lets call it A and one considered insecure, B. The software I need to use, uses HSMS, a protocol based on TCP with no security built in. Now the problem is ...
0
votes
1answer
69 views

TCPview: Some strange process?

I just install the TCPview to check if there are any abnormalities in my computer connections, and there are something looks strange: There are 2-3 process that show the following status from time to ...
0
votes
1answer
102 views

TCP-IP versus TCP-IP over VPN

What are the advantages and disadvantages of a TCP-IP connection over VPN opposed to a regular TCP-IP connection? I am interested mainly in speed and security! Thank you.
7
votes
6answers
2k views

Port scan revealed port 1111 open. What is it?

I am new to systems administration and have a new server running a website with http (at port 80), https (at port 443) and ssh (at port 22). I did an nmap port scan using my personal laptop and other ...
1
vote
3answers
1k views

closing open TCP ports under WinXP SP3

I must confess I have not been very security-conscious over the last few years, and I just did an NMAP scan of my computer to see how it was doing. The results amazed me. There were literally ...
10
votes
7answers
6k views

Why is it bad to have open ports?

Here's something that has always baffled me. Why is it bad to have open ports on your computer? Assuming you don't have a virus on your computer or some other program listening to a port that may ...