Got this from ViaBtc a few hours ago:
Dear ViaBTC users,
Recently, due to the impact of DNS pollution, some of the users in certain regions experienced abnormal resolution of the ViaBTC domain name (
www.viabtc.com) and were unable to access the website properly. After emergency maintenance, ViaBTC has activated a new domain name (
www.viabtc.net). If you have ever encountered the above situation, please use the new domain name to visit the website.
DNS pollution as in spoofing?
Poolin and F2pool were reachable at noon (GMT), viabtc.com was off, can't test .net for a while to see if it works.
I can get to the viabtc.net site, looks same as the old one. I did not try to log in, waiting for someone braver to do that.
But when I replace .com with .net in my miners, I still get unresolved host.