masscan
fwknop
masscan | fwknop | |
---|---|---|
64 | 10 | |
22,670 | 1,028 | |
- | - | |
7.8 | 7.3 | |
about 2 months ago | about 1 month ago | |
C | Perl | |
GNU Affero General Public License v3.0 | GNU General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
masscan
- Why so many bots?
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Mass Scanning
Can I get banned for mass scanning with https://github.com/robertdavidgraham/masscan or does it slow down any other vms from other persons?
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Has anyone ever had their homelab or network hacked? What happened?
Nope, this doesn't work any more. Shodan checks all ports (so any attackers using data from Shodan already know which ports you have open), and tools like masscan (https://github.com/robertdavidgraham/masscan) let you portscan the entire IPv4 address space in less than 10 minutes.
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Private server intruded
https://github.com/LogoiLab/mcsl https://github.com/robertdavidgraham/masscan
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My home server is frustrating me. Please help me, home server wizards.
Changing the default port does nothing for security. It only prevents some basic brute force or default password scripts. Anyone is able to scan for it in no time anyway (https://github.com/robertdavidgraham/masscan).
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Should I be Concerned?
But it should blow away the far-too-common belief that no-one's after you because you're not interesting enough. IPv4 is smaller than we think. It is not difficult to scan the entire ipv4 space in minutes. And every single one of those is going to knock your door on the way past.
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Ask HN: Looking for an Old Article
I'm not sure about the article, but the blazingly-fast IP scanner sounds a lot like Masscan. It can scan the entire Internet in 5 minutes and has received a lot of press: https://github.com/robertdavidgraham/masscan . https://rushter.com/blog/how-masscan-works/ is one of many articles about it.
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Is my Synology getting port-scanned?
Here's an except from the masscan docs:
- I was hit with ransomware in my Plex server and I'm not sure where it came from. Could a DMZ be the cause?
- PSA: Masscan has changed his IP. Please block the new one on your firewall! Its likely our vps reporting worked.
fwknop
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Fail2ban Sucks
sounds fun; i see the arch aur has a few options as well. have you tried https://www.cipherdyne.org/fwknop/ ?
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Has anyone ever had their homelab or network hacked? What happened?
Yes that's the basic idea, i tried to use fwknop first but it didn't do what i wanted it to do so i made my own
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How to securely enable SSH access to my home network?
Port knocking. Or better yet FWKNOP. I'm disappointed I don't hear people talk about it more. The port isn't even open until you give the secret combination of knocks on a large number of ports. There's much more to it. I recommend listening to Episode 865 ofSecurity Now.
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Show HN: Knockles – eBPF Port Knocking Tool
> Is this approach used elsewhere?
Yes, or at least in a similar fashion. An alternative variant of port knocking is SPA (Single Packet Authorization). Often SPA protocols use UDP and contain within the body field an encrypted payload containing all the required data to authenticate and authorize a particular request.
There are multiple different implementations of SPA: OpenSPA [1] (full disclosure: I am the author of OpenSPA), fwknop [2] just to name a few.
SDP (Software Defined Perimeter) often builds upon SPA technologies in order to achieve a form of zero trust access.
[1] - https://github.com/greenstatic/openspa
[2] - https://github.com/mrash/fwknop
I am currently re-writting the OpenSPA protocol (version 2) and I plan on playing around with eBPF as well, so thanks eeriedusk for paving the way :)
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Blocking SSH Bot Net Attack
As an alternative to port knocking, there is: https://github.com/mrash/fwknop
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Start VPN server based on external trigger
fwknop is nice and simple
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UFW setup for decent security
Sure, few links for when you dig in: http://iplists.firehol.org/, https://crowdsec.net/, https://www.zeroflux.org/projects/knock/, https://www.cipherdyne.org/fwknop/
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Who's Attacking My Server?
An upgrade to port knocking is Single Packet Authorization [1]. It doesn’t suffer from the observability, and other, problems of port knocking.
[1] https://www.cipherdyne.org/fwknop/
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How Self Hosting (and password reuse) led to the compromise of Linked In, Dropbox, & more.
Or keep the port closed like I do with my ssh port and use fwknop to open the port only when needed.
What are some alternatives?
RustScan - 🤖 The Modern Port Scanner 🤖
pfSense - Main repository for pfSense
zmap - ZMap is a fast single packet network scanner designed for Internet-wide network surveys.
Fail2Ban - Daemon to ban hosts that cause multiple authentication errors
amass - In-depth attack surface mapping and asset discovery
OSQuery - SQL powered operating system instrumentation, monitoring, and analytics.
nuclei - Fast and customizable vulnerability scanner based on simple YAML based DSL.
autoVPN - Create On Demand Disposable OpenVPN Endpoints on AWS.
zgrab2-configurations - A repository for possible zgrab2 configurations
crowdsec - CrowdSec - the open-source and participative security solution offering crowdsourced protection against malicious IPs and access to the most advanced real-world CTI.
mitmproxy - An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.
Glastopf - Web Application Honeypot