Login-Shield
Fail2Ban
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| Login-Shield | Fail2Ban | |
|---|---|---|
| 2 | 49 | |
| 35 | 10,423 | |
| - | 4.6% | |
| 5.1 | 8.8 | |
| 6 months ago | 5 days ago | |
| Shell | Python | |
| GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
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Login-Shield
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About the roadmap...
However I do not merely rely on this trust. I monitor my systems aggressively. I implement additional security measures to mitigate my exposure and liability. There are systems like fail2ban and login-shield that I use as additional layers (and have audited the code - these systems are a lot simpler than Linux - it's unrealistic for anybody to actually fully-audit the Linux kernel).
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I find security vulnerabilities in the connected devices that we use every day. I’m the VP of Research at Armis — ask me anything!
Obviously your focus is on finding vulnerabilities, but how important would you say is stopping unauthorized people from even having a chance to find/exploit vulnerabilities in the first place? There are systems like like Fail2Ban and Login-Shield that use IP-based blacklisting that in my opinion can protect us from the vulnerabilities we aren't even aware of. How important is this in your plan of protection?
Fail2Ban
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Looking for a way to remote in to K's of raspberry pi's...
now some things you need to think about: - cloud init - this will need to be secure so lock it down hard anything not needed an alternative OS to look at if you have the ability's is https://www.alpinelinux.org/ also as these devices are not that powerfull every extra agent / abstaction layer you add impacts performance need to look at low over head security https://www.crowdsec.net/ and https://github.com/fail2ban/fail2ban (if you call fail2ban security) - using certificates to authenticate ssh login
- Fail2Ban
- Fail2Ban – Daemon to ban hosts that cause multiple authentication errors
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I am (to be) a web designer, how to ensure security on a vps?
See https://github.com/fail2ban/fail2ban for beginner's guide, basically you set it up to monitor logfiles and it would act accordingly (plenty of built-in config to handle various daemons so you don't have to write yourself).
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Home Lab Setup Recommendations
- Nginx & crowdsec/fail2ban if you are exposing your parts (services) to the public ( https://hub.docker.com/r/baudneo/nginx-proxy-manager, https://www.crowdsec.net, https://www.fail2ban.org )
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fail2ban not notifying Cloudflare
— In /etc/fail2ban/action.d/cloudflare.conf I copied the file from https://github.com/fail2ban/fail2ban/blob/master/config/action.d/cloudflare.confand added my ‘cftoken’ and ‘cfuser’ on the bottom
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Firewall rules beyond "deny incoming, enable only the ports that you need"
https://github.com/fail2ban/fail2ban is a mature, easy to set up way to have some dynamic firewall rules that respond to attacks. There are more sophisticated options, but they are probably not worth the return on time investment for you.
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Comments/Suggestions on security-auditing different services
You can create your own regexes for custom services: https://github.com/fail2ban/fail2ban/wiki/Developing-Regex-in-Fail2ban
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Fail2Ban Limitation
Others seem to be (or were) experiencing this too: https://github.com/fail2ban/fail2ban/issues/3100
What are some alternatives?
crowdsec - CrowdSec - the open-source and participative security solution offering crowdsourced protection against malicious IPs and access to the most advanced real-world CTI.
Suricata - Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine developed by the OISF and the Suricata community.
Snort - Snort++
Denyhosts - Automated host blocking from SSH brute force attacks
OSSEC - OSSEC is an Open Source Host-based Intrusion Detection System that performs log analysis, file integrity checking, policy monitoring, rootkit detection, real-time alerting and active response.
pfSense - Main repository for pfSense
Nginx Proxy Manager - Docker container for managing Nginx proxy hosts with a simple, powerful interface
Wazuh - Wazuh - The Open Source Security Platform. Unified XDR and SIEM protection for endpoints and cloud workloads.
SpamAssassin - Read-only mirror of Apache SpamAssassin. Submit patches to https://bz.apache.org/SpamAssassin/. Do not send pull requests
maltrail - Malicious traffic detection system
wazuh-ruleset - Wazuh - Ruleset
fwknop - Single Packet Authorization > Port Knocking