Yesterday, I noticed some really strange traffic coming from our mailserver. It was trying to connect to a loopback address (in the IANA space assigned for them, 127.0.0.0/8) on port 25. <BR><BR>I ...

Work is afoot to free up several internet protocol version 4 (IPv4) address ranges which have been unroutable as reserved, invalid or used for loopback networks since the 1980s. Seth Schoen, who ...

Popular npm library netmask has a critical networking vulnerability. netmask is frequently used by hundreds of thousands of applications to parse IPv4 addresses and CIDR blocks or compare them. The ...