Hot answers tagged vps
Under "normal/common" circumstances (for example, when you're running a "normal" server, that, as far as you know, should NOT be running and should not have installed any kind of "hostile" software), all the software components used/usable for hostile activities tries to escape any kind of detection. So, as a first rule, it's generally not possible to ...
Obviously it isn’t okay. Why would it be? It’s a BSOD. You wouldn’t kill the init process on Linux, so why would it be okay to do so on Windows? Update Apparently, they don’t support shutdown via ACPI (which is not that cool) but simply “kill the power”. You should encourage them to implement a ACPI power button solution. It’s what VirtualBox does and it ...
If you do not saturate your RAM, then it is not necessary to add it. However, consider that additional RAM should improve your i/o speed by virtue of disk caching. So, if your workload is read-mostly and you are suffering of high CPU iowait time, adding more RAM can be useful.
If you have a means to console into the server you should do so during a high load time and see what processes are hogging the most CPU usage. You may discover that you can disable or modify certain protocols to lower overhead. As stated in the other answer, if your RAM usage is not peaking and your CPU is, than your CPU is the bottleneck.
Bandwidth consumption is more complicated than what can be described with just a single number. However the exact scenario you are asking about can mostly be explained by looking at two measures. What is the actual link speed and what is the monthly quota? Link speeds are usually measured in megabits per second (Mb/s for short). Typically those ranges from ...
Maybe fail2ban is blocking you after a few minutes of failed login attempts. Even if you're not sending those, someone else is. If the fail2ban rule is too broad, it could be locking you out. If that's not it, then you should check to see if you're able to connect by telnet to port 22 on your host.
If the attack is over and your VPS is not participating in it anymore, you can't tell. If it is still ongoing you can check it via tcpdump. You could search your system for stuff you didn't put there, but otherwise you are out of luck.
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