4
From nmap.org:
If no host discovery options are given, Nmap sends an ICMP echo
request, a TCP SYN packet to port 443, a TCP ACK packet to port 80,
and an ICMP timestamp request. ... For unprivileged
Unix shell users, the default probes are a SYN packet to ports 80 and
443 using the connect system call.
I am guessing you ran nmap as an unprivileged user, so ...
3
Blockchain is good in exactly one scenario: establishing trust at a peer-to-peer level when there are zero valid options for agreeing upon a mutually trustworthy third party. That's it. In every other case, using a mutually trusted third party (i.e. a Certificate Authority) can provide the trust needed in a much easier, cheaper, and more standardized way.
...
3
You appear to not be aware of established and more robust options:
approve signed apps: that's much, much better than your "more dynamic mitigation strategy"
javascript is not saved as an "app" but in browser storage: your strategies are much easier for JS when you realise this
global publisher blockchain doesn't mitigate compromised ...
1
In general, there's very little that involves configuring an Ethernet driver that can control security or privacy. The job of an Ethernet driver is to get data from the kernel, where it's formed into packets, and turn it into actual signals on the wire. The Ethernet driver doesn't generally have a lot of say in what data it gets; that job is handled by the ...
1
It depends on your network. If you have a large corporate network, you should limit the protocols to the subnets/vlans/ports where they are required. On the other side of the spectrum, on most home networks, you will see a lot of protocols that people just don't know about.
Do not just think about subnets where they may be used, but also think layer 2 and ...
1
I recently found out that HDMI cables (v1.4 and over) have ethernet capabilities for higher res output
Yes, the HDMI protocol allows using HDMI as a transport for Ethernet. No, this isn't dependent on the spec of the cable you use, and no, it doesn't have anything to do with getting higher res video.
Say I have a PC/laptop connected to the internet, and a ...
1
Couldn't local IP addresses and OS usernames be used by a hacker to attempt remote desktop connections?
Unless your dev workstation is internet-facing (ie you've port-forwarded it through your router), I wouldn't worry about the IP part. Maybe your username and project name could be considered sensitive.
When they say "without encryption" I think ...
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