Are there open source "bookmarks" for Linux servers?

Question

linux

For example, on a server (rented) all ports are closed, except for 80, 443 and a random one under ssh with key authorization. Suppose a colleague accidentally demolishes my key while he goes on vacation.
Is there something ready-made that can work in daemon mode from root, and at the same time disguise itself as something harmless to put and forget. And in the case of such an accident as above, would it be possible to get root access?

Answer 1

If you have physical access to the server, you can get root without any problems: habrahabr.ru/post/104536

Answer 2

For the situation described above, no software is needed - ipkvm, log in, put the key back in place ...
And to disguise, etc. then the example is correct. However, it is unlikely that someone here will tell you where to get rootkits and how to use them.

Answer 3

Yes, it’s full of the standard set of software - forwarding control through nc , but I consider it at least unethical to advise various rootkits here, as in the case of a colleague who left, disguise is not needed.

Answer 4

Well. In general, in this case, it makes sense to store a copy of the key in .ssh/authorized_keys2.
https://debian.pro/1278 but in general here I wrote how to run something via http on the server "in the console" without apache+cgi. Just do not forget to remove this thing for authorization. What will be inside the script is up to you. You can change the root password from there to one known only to you.

Answer 5

If we take the situation described in the question. then each hoster has a support where they can easily recover the password and a web panel where the keys can be loaded manually. If the goals are different, then you need to look for some rootkits, I don’t think that they are openly on some github. It is necessary to climb into specialized communities.