How can I get a a list of installed packages from a debian setup which is mounted to /mnt/ while using a rescue mode?
Scenario: Server crashed, only rescue mode possible. Setting up a new server, migrate data from old server to new with rsync.
But how to install all packages on the new server which were installed on the old server (yeah, rescue mode only)?
Thanks!
I'm just a bit confused about the correct DNS setup for hosting multiple domains on a single server with one ip.
For example the mail server (domain/reverse: example.com) should host 3 domains:
example.com
domain.com
test.com
So whats the correct dns setup?
example.com mx 1 example.com
domain.com mx 1 example.com
test.com mx 1 example.com
or
example.com mx 1 example.com
domain.com mx 1 domain.com
test.com mx 1 test.com
And whats about the mx priority? Only 1 entry for each host? I guess thats fine, because there is only one server and no extra failover server.