1
vote
0answers
90 views

Why does scanlogd miss port scans?

I am running scanlogd to detect port scans. I have observed the following to generate a log message in /var/log/syslog. When I use zenmap (nmap gui) to port scan this system from another computer on ...
0
votes
1answer
102 views

Do an os scan with nmap only

Is it possible to do an OS detection scan with nmap without scanning a port? I really need only OS detection and try to reduce the amount of traffic as much as possible. By the way what is the most ...
0
votes
2answers
289 views

nmap scan only state of port

Is it possible with nmap to check only the state of a port whether- open, closed or filtered and NOT the services behind it? The aim is to speed up scan results. Since UDP scan is also involved it is ...
2
votes
2answers
755 views

Weird Port scanning results using nmap

I was scanning one of my friends servers using nmap and got these port details. PORT STATE SERVICE 22/tcp open ssh 42/tcp filtered nameserver 80/tcp open http 111/tcp open ...
1
vote
1answer
172 views

Nmap reporting incorrect results from an idle scan

I have a VPS that I was scanning to make sure everything is in check. A regular SYN scan reports that ports 25 and 80 are open (which they should be). When I run an idle scan however, I get back that ...
1
vote
5answers
3k views

Can't get nmap to work under Windows 7 64 bit

I'm trying to install and run the nmap tool to test my server, but it keeps saying Note: Host seems down. If it is really up, but blocking our ping probes, try -P0 and showing all the server ports ...
0
votes
2answers
322 views

how do I scan all computers in my network with nmap?

I am trying to use nmap to scan the computers on my network for conficker. I am using Windows. What do I put in the target for all computer on a given subnet? It is running: nmap -T4 -A -v I put ...