I got a debian VPS last day and installed on it a few things (nodejs, nginx, redis) and as of last night it's mostly inaccessible by ping, after each reboot it works for a few seconds and then goes to blackout, I have no idea what happens. With each reboot I have a few seconds to ssh to it and do a command or two.
I know this is a very vague question, but it's because I don't know what I'm looking for. If you have any idea of what might be the cause, please say.
It was a network issue after all, after restarting networking (eth0) daemon for a few seconds everything is fine, but after that I can't even ping the gateway! iptables are empty, no policy is added.