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For example https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/service-overview-and-network-port-requirements requires ports 49152 – 65535. Is there any reason you can’t just open ports 49152-50152? Why does it need ~… Continue reading Do you have to abide by port range specifications? [closed]
I am curently scanning for open ports on a subdomain. Say I have example.com and subdomain.example.com, but this subdomain can only be reached at port 8443. How can I scan for other potential open ports? Nmap will show this warning when tr… Continue reading Scan for open ports on subdomain
My typical cloud server hardening includes blocking ports at the UFW level on the server as well as at the AWS security group level.
I recently learned that Docker overwrites your IPTables. Given that, I had previously blocked a port x wit… Continue reading Does AWS security group block unintentionally exposed ports from Docker?
I am a security engineer trying to understand the risks of having LDP exposed to the Internet on port 646. I cannot find much information available on the Internet documenting this. Any information including further reading links would be … Continue reading Does Label Distribution Protocol (LDP) on port 646 need to be open to the Internet? What are the risks associated with it?
Ran nmap
nmap IP -p1-5000
Found an open port 1221 called sweetware-app. Not sure what this port is or what it does.
After some research on the Internet, I haven’t gotten much information. Some pages I found said it belonged to Microsoft … Continue reading Open Port 1221 Found on Server [closed]
Many outline access keys use a random port but some do 443, I’ve found out since port 443 is for http its harder to find out that port is using a vpn.
So the question is, why don’t other Outline servers use port 443 instead of a random por… Continue reading Best port to setup Outline VPN for obfuscation
Probing with nmap returns BlackICE on a couple of ports however it seems to be a really old tool according to these manuals.
Starting Nmap 7.80 ( https://nmap.org ) at 2022-10-16 20:27 EDT
Nmap scan report for _gateway (192.168.0.1)
Host i… Continue reading How to confirm what service is running on a port identified by nmap?
I have a device and I am trying to port scan it. I did the basic
nmap -A -p0- 192.168.0.x
but I am just getting
0/tcp filtered unknown
so I don’t think it is working. The device works on p2p so I am thinking that is why it may not be worki… Continue reading How can I port scan my p2p device?
Is there a way to prevent a port from being discovered by nmap? I found that port 1433 is still being flagged as "open" when using the following command:
nmap <ip_add> -Pn -p1433
or
nmap <ip_add> -Pn
However, it’s n… Continue reading Prevent Discovery of Port from NMAP scan using -Pn
I’m currently learning how to discover web applications running on a machine using port scanning, vhost bruteforcing and directory fuzzing. When it comes to port scanning, there is one thing I can’t wrap my head around.
Let’s say I have sc… Continue reading Web application discovery: Can there be virtual hosts configured even when there is a response without host header?