On Mon, Apr 16, 2018 at 02:05:35PM -0400, tlhackque via Mailman-Users wrote: > Good advice.??? But use httpS: (and make sure the UA validates the server > certificate). > Unless you fancy experimenting with DOS attacks.
Yep. You're exactly right. > But the biggest source of attacks, by far, is the US.??? Unfortunately, > while some people run business that don't interact with the US, in most > cases a non-country based approach is necessary for that :-) Yes. There's no question that the US is a huge source of attacks, and if I were running a mailing list for birdwatchers in Australia, I'd seriously consider blocking it. But you're right, that bumps into all kinds of hosting/infrastructure issues and so blocking the whole country will likely have unpleasant side effects. > https://github.com/tlhackque/BlockCountries > A new release that provides better management is overdue -- but > hopefully soon. That...is cool. Thanks for the pointer. > The best defense for ssh is to configure it for certificate > authentication only. >The script kiddies will make their 10,000 login attempts [...] True, but I find the clutter in logs annoying. ;) So in situations where I know a priori that a valid login attempt will never originate from an operation, I just firewall it and let them eat dropped packets. > [I'm not kidding; I do see lists of 10K+ attempts from "adam adam", > "adam password" thru "zeke password" "zeke zeke"...] I stood up a new server last fall with *no* valid ssh access and logged about 750,000 attempts in a month. Similar patterns. > If you keep up your lists of cloud services' network blocks & have them > on a publicly accessible > website, I'll add them to my list of optional block lists.??? (Hopefully > you use a standard format - e.g. > ipaddress[/netmask or length] with # or ; comments...) I keep them in CIDR<tab>network-name but honestly I'm not diligent enough about maintaining them. As a result, they're always under-inclusive (very rarely over-inclusive). That works for what I use them for, but I'm hesitant to inflict my laziness on others. Let me see if I can locate someone who's doing a better job than I am. ---rsk ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org https://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: https://mail.python.org/mailman/options/mailman-users/archive%40jab.org