At present, many users use Linux servers, but the current network environment is not very calm, and there are always malicious attacks. At ordinary times, some friends may encounter the problem of server hacking. After collecting and sorting out relevant materials, I have found a solution for Linux Server hacking, I hope you will have a lot to learn.
If you have installed all the correct patches, have tested firewalls, and have activated Advanced Intrusion Detection Systems at multiple levels, then you will be hacked only in one situation, that is, you are too lazy to do what to do, such as installing the latest BIND patch.
It is really embarrassing to be hacked without being careful. More seriously, some script moles will download some well-known "rootkits" or popular spying tools, these occupy your CPU, memory, data, and bandwidth. Where did these bad guys start? This starts with rootkit.
A rootkit is actually a software package that hackers use to provide themselves with root-level access permissions to your machine. Once the hacker can access your machine as root, everything is done. The only thing you can do is to back up your data with the fastest efficiency, clear the hard disk, and reinstall the operating system. In any case, it is not easy to restore your machine once it is taken over by someone.