Tagged Questions
0
votes
4answers
124 views
SYN scan victim sending back RST
I'm confused on the case of SYN scan and closed ports (the case of open ports makes sense). So, the attacker sends a ~40 byte SYN packet, a "closed port" would send a RST packet back to the attacker ...
2
votes
5answers
193 views
How to bypass Nmap blockage?
I rent a server, and my provider seems to be blocking nmap. Is there any other tools I could use to test my home network from the outside?
Also, does blocking nmap on a network provide any security?
...
1
vote
2answers
158 views
Spike in TCP port 5904 activity - what for?
There is an 'Internet Weather Report' on the Threat!Traq video blog by AT&T security researchers. In the March 14th broadcast, at around 31 minutes in, they mention an increase of scanning ...
0
votes
0answers
119 views
Tool too scan open ports on a firewall [closed]
How can we check which ports are open on a firewall that use header flags?
Any free tool that sends packets to the host to map these ports?
-1
votes
2answers
401 views
Port scanning legal or not? [closed]
Is port scanning legal ?
In which countries ?
my option :
I think port scanning is like a short-walk( or a long-walk) in the neighbourhood, just curious about neighbours are up to.
I think that ...
4
votes
4answers
622 views
How can I scan open ports without being traced back
I would like to scan open ports of a server. But as far as I know, when I try to scan the open ports with something like nmap in shell they would be able to trace me. Is there a way to secure this ...
2
votes
2answers
209 views
Tools/methods helping to determine application/protocol serving specific port
I do blackbox testing of the server and figured out that there is a bunch of listening ports. I need to determine what services/protocols those ports are used for.
What I've tried so far is to use ...
3
votes
1answer
445 views
How does OS detection work in practice?
I was wondering how OS detection really works on Nmap. I know it is about to send different tcp probes to see how the target machine responds to them.
But what kind of probes would distinguish a ...
2
votes
1answer
3k views
Detected Port Scanning Attack in ESET Smart Security
I receive a number of notifications from ESET Smart Security about Port Scanning attack. But I'm behind a router. But as far as I know, computers behind a router is not accessible from others (Please ...
