On Sat, Feb 21, 2009 at 8:39 AM, Kyle <k...@attitia.com> wrote: > It's all good. Keep the thoughts coming please. > > I actually use IMAP over SSL.
you can use openssl s_client in place of telnet to connect - http://www.jaharmi.com/2007/09/26/using_openssl_securely_connect_your_imap_account has a guide. > But for good measure Telnetted (and > Wiresharked) over both my SSL IMAP port and 25. Both responses come back > PDQ. And Wireshark shows traffic moving from one host to the other and > return. I'm pretty confident of my iptables setup as I have refined that > over a period of years. > > Both NIC's in full-duplex (albeit negotiated down to 100Mbps for the switch > behind the router.) > > Is there anything in sysctl.conf I can mess with other than the single; > 'net.ipv4.ip_forward = 1' param which will help? > > If I switch off ipv6, will that help? > > ------------------------------------------------------------------------ > Kind Regards > > Kyle > > > > pe...@chubb.wattle.id.au wrote: >> >> So, connexions to the (imap? smtp?) mail server time out. Can you run >> wireshark on the server, and see what's happening? Does the server >> have a correct route to the clients? >> >> If it's smtp, then try telnet from a client to the server (telnet >> 192.168.1.1 25) on the inside of the firewall, while watching top on >> the firewall. What does the load look like? Does the telnet session >> time out? During which part of the connexion? >> > -- > SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ > Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html > -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
