Some of the most commonly-used firewalls are subject to a hacker exploit that lets an attacker trick a firewall and get into an internal network as a trusted IP connection. More on security: 20 hot IT ...

When I use the netstat command to look at the open TCP/IP connections on my PC, there are connections that should be closed that are in the TIME_WAIT state. What is this, and why do connections stay ...

Cloudflare processes 60 million HTTP requests per second, of which about 70% are TCP connections and about 30% are UDP/QUIC connections. Of these, only about 80% of data exchanges are actually ...

This month, we shift our focus to an important security issue. We will combine some information about IP addresses, the TCP three-way handshake, and the role of the firewall. This security issue is ...

I have a VM in EC2 that has been running dual stack IPv4 and IPv6 successfully for over a year now, but things have recently broken on the IPv6 side. My VPC has a /20 block in RFC1918 space, and a /64 ...

Security and networking platforms for large enterprises and data centers are rapidly evolving in sophistication and performance. In the security space, simple packet-filtering firewalls are evolving ...