Just got an email from the host:
We are seeing a high level of DDoS activity today across all locations, leading to bursts of packet loss and near-constant emergency null-rutes. We are monitoring and investigating, and trying to do everything we can to slow these down, but in most cases, they are causing problems for Internap upstream, so we have no real options available.
So, if server is acting shitty tonight, that is likely why.