Collaborate Disseminate
I am trying to create a firewall rule to allow Microsoft Teams thru my firewall. I can see here https://docs.microsoft.com/en-us/microsoft-365/enterprise/urls-and-ip-address-ranges?view=o365-worldwide#skype-for-business-online-and-microsof… Continue reading How to construct firewall rule from 52.112.0.0/14 [migrated]
Let’s say, I am in my home office connected through a VPN with the company network with a company device.
When I am using Firefox, not controlled by the Company like Chrome or Edge, the certificates of the websites are not substituted by a… Continue reading How is it possible for a Company to block Websites when at home, using DNS over HTTPS and no Certificate issued by the Company? [duplicate]
How iptables 7 work with SSL encrypted traffic ?
Or what usage of iptables layer 7 in encrypted world ?
Continue reading How iptables layer 7 work with SSL [closed]
Is it possible to whitelist only 1 domain name but not IP?
For example:
On some "Doogle" hosting is IP 1.1.1.1 and have multiple domain resolution for this IP: dog.com, cat.com
cat.com generating phishing attempts, brute-forcing … Continue reading Whitelisting only domain not IP [closed]
Section 5.3 of RFC6052 explained how an attacker could abuse the NAT64 translation mechanism to bypass security mechanism such as firewall or IDS/IPS if those devices only have an IPv4 blacklist. The mitigation is to convert the IPv4-embed… Continue reading How to Prevent Attacker from Abusing IPv4-embedded IPv6 to Bypass Security Mechanism?
I have a website hosted on AWS EC2, and I have some questions about security.
How is the best way to protect my web application in AWS?
Can I open the HTTP (80) and HTTPS (443) to the world (0.0.0.0/0)?
About the SSH port (22), can I open … Continue reading What are the best practices to configure security group in AWS web application?
Why would someone want to disable an ipv6 firewall. Are they trying to hack my router?
My buddy disabled my ipv6 firewall. Is this so he can hack my internet?
Continue reading Reasons for disabling IPv6 on the firewall [closed]
I’m trying to write a proof of concept exploit for CVE-2016-5410.
I’ve installed the 0.4.3.2 version in a Ubuntu virtual machine.
The only information that I have is:
"firewalld.py in firewalld before 0.4.3.3 allows local users to by… Continue reading PoC exploit for FirewallD CVE-2016-5410 [closed]
I want to prevent my daughter from accessing YouTube while she’s attending school. So I was thinking to add protections in iptables. Unfortunately, when she goes to YouTube, the DNS resolves to IP addresses which reverse lookup to 1e100.ne… Continue reading How can I block hits to Youtube using iptables?