Re: cyrus 2.5 imap idle/stuck connections (DOS like)

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My  "man imapd.conf" doesn't list this option at all. I think my Cyrus 2.5.10 is older than it..

But I've added it to the .conf anyway. Won't hurt if it doesn't exist yet, right? lol


Atenciosamente,

Heiler Bemerguy - CINBESA
Analista de Redes, Wi-Fi,
Virtualização e Serviços Internet
(55) 91 98151-4894

Em 07/03/2019 11:58, Wolfgang Breyha escreveu:
Heiler Bemerguy via Info-cyrus wrote on 07/03/2019 15:39:
Yes I've read imapd.conf and cyrus.conf and found no options to limit
connections per source IP or "idleness"..

It means anyone can open a lot of connections to any port (143, 25, 110 etc)
and render the server unusable??
You can try to set
imapidletimeout: <minutes>
as documented in "man imapd.conf".

To keep your server "RFC friendly" this value should not be lower than 30
minutes, because RFC 2177:3. recommends that clients show activity at least
every 29 minutes.

Greetings, Wolfgang
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