While we're at it, let's deprecate IPv4 now that IPv6 is fully deployed
Come on Mr. Herrin. Blocking a port is much easier than deprecating a heavily used protocol. Google stats show ~75% use IPv4. On Sat, Jan 12, 2019 at 7:30 AM William Herrin <bill@herrin.us> wrote:
On Fri, Jan 11, 2019 at 5:52 PM Viruthagiri Thirumavalavan <giri@dombox.org> wrote:
In addition, it bypasses all the security folks have built around the idea of blocking port 25 traffic from sources which should not be operating as mail servers. Let's not make the network less secure in the name of making it more so.
I already addressed this issue in the "security considerations" section.
"Port 26 will be a secure alternative for Port 25. So Internet Service Providers are adviced to take precautions to prevent email spam abuse. They are advised to block port 26, if necessary."
While we're at it, let's deprecate IPv4 now that IPv6 is fully deployed.
-Bill
-- William Herrin ................ herrin@dirtside.com bill@herrin.us Dirtside Systems ......... Web: <http://www.dirtside.com/>
-- Best Regards, Viruthagiri Thirumavalavan Dombox, Inc.