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Reindl Harald wrote the following on 26.08.2013 07:56:
Am 26.08.2013 02:46, schrieb Tamsy:
LuKreme wrote the following on 26.08.2013 06:42:
In my dovecot.conf I do not have pop3-login anabled (since I do not
support pop3):
as said already, it's one line in dovecot.conf protocols = imap
Besides of the above, if you are not going to use POP3 at all I would close port 110 and port 995 with DROP to let to go these accesses to nowhere
besides the fact that unused services should not listen at all this advice in case of firewalls is wrong - close *any* port as default and open *only* the one you are using
not the other direction DROP specific ones you do not want
frankly, there are 65535 possible ports
Reindl is correct like almost always. But isn't it the basics anyway when going for IPtables, to drop all at first and open one by one as needed? Obviously LuKreme has at least port left 110 open and what I ment is to close it right away to let these thousands (tens of thousands) accesses to go nowhere....
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