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3

Migrate FTP users from one server to another

rated 0 times [ 3] [ 0] / answers: 1 / hits: 3130 / 3 Years ago, sat, september 4, 2021, 11:45:11

I have a situation where I have ~10 FTP users, and I need to migrate them from one server (server A) to another (server B).

The userdata (so their files) are in /home/<username>, so moving that is as simple as an rsync job.

I also need to keep their existing usernames/passwords etc - if it's at all possible, the users shouldn't notice that they had the server switched on them.

Is there a "easy" way to do this?

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answered 3 Years ago polcomposte · Accepted Answer

Generally speaking all you need to do is migrate the relevant lines in /etc/passwd, /etc/shadow and the group variants (/etc/group and /etc/gshadow) along with home files.

You might be able to just clone these files over but I think it's probably better to strip out the system accounts which might (poor design, but they might) store their passwords around the system which might be different on your new installation.

The best guide I've seen to do this selectively is this one. Just be careful that in the end you're using >> to append the old user accounts on to the new server's files and not > which would replace them.