<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><span class="">Dear Cyrus friends and Heiler Bensimon Bemerguy,<br class=""></span><div class=""><br class=""></div><div class="">You could use your firewall to achieve this.</div><div class=""><br class=""></div><div class="">For ipfw:</div><div class=""><br class=""></div><div class="">${fwcmd} add pass tcp from any to ${ip_me} imap setup limit src-addr 10</div><div class=""><br class=""></div><div class="">You have to lookup the right syntax for your firewall.</div><div class=""><br class=""></div><div class="">Dit you check man imapd or man cyrus, maybe there is also an option for the daemon itself, but I would prefer the firewall. </div><div class=""><br class=""></div><br class=""><div class="">
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<div><br class=""><blockquote type="cite" class=""><div class="">On 7 Mar 2019, at 14:53, Heiler Bemerguy via Info-cyrus <<a href="mailto:info-cyrus@lists.andrew.cmu.edu" class="">info-cyrus@lists.andrew.cmu.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Hail,<br class=""><br class="">I've noticed an user with ~200 open connections to cyrus imap port (143) and, because of him, no one else could login to the server.<br class=""><br class="">I've noticed even with a single "telnet ip 143", the connection is accepted and never ever dropped, even while still unauthenticated.<br class=""><br class="">How to stop that from happening?<br class=""><br class="">cyrus.conf:<br class="">imap cmd="imapd -U 30" listen="imap" prefork=6 maxchild=200<br class=""><br class=""><br class="">-- <br class="">Atenciosamente,<br class=""><br class="">Heiler Bensimon Bemerguy - CINBESA<br class="">Analista de Redes, Wi-Fi,<br class="">Virtualização e Serviços Internet<br class="">(55) 91 98151-4894<br class=""><br class="">----<br class="">Cyrus Home Page: <a href="http://www.cyrusimap.org/" class="">http://www.cyrusimap.org/</a><br class="">List Archives/Info: <a href="http://lists.andrew.cmu.edu/pipermail/info-cyrus/" class="">http://lists.andrew.cmu.edu/pipermail/info-cyrus/</a><br class="">To Unsubscribe:<br class=""><a href="https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus" class="">https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus</a></div></div></blockquote></div><br class=""></body></html>