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But I used cloudfare as DNS, Free account that is, and clicked around for a couple of minutes and it pretty much solved all my mail server issues got it properly configured.

Cleaner reverse DNS lookups unless you use cloudflare

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I can't trust it after the recent downtime lasting over 10 hours, it would create dns resolution issues

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(about debian 10 run on 64 MB ram VPS) ... but on your screenshot, there is 256 MB swap ... does natvps enable ram swap, or you just create disk/partition-swap? I just remember when old debian (6 or 8

All you can do is hope they gonna stop paying for it, but then I would suggest not visiting the website/DNS as this brings traffic... so someone is interested, so worth to hold it.

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@FlorinMarian , just close them, both ways, in and out. for the moment for all sub-nets, for the moment no one will cry if it does not have DNS resolution, as non have access to their stuff, go with u

DNS Amplification exhausts all your bandwidth by sending requests to your entire subnet, even if you only have a few IPs used from a single subnet.

If it's DNS Amp based, should make you a no DNS provider or SSDP.

Inbound our switch does not support it but anyway...current attack is DNS Amplification based.

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For me it's absolutely pointless to charge any money for IPs with IPv4, when IPv6 is nearly unlimited and given from RIRs - and could be DNS-proxied to IPv4 from Cloudflare, for example. I don't see I

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ie mail is simply being rejected rather than a DNS issue

Hazi is DDoSed via DNS amplification of about 4Gbps, waits for Arbor (3 working? days ETA)