Hi Thomas, Yes, you will need to configure network interfaces for each IP on your machine. You need to also setup A records, MX records and reverse DNS records (PTR) for each IP with your name server as well. Your ISP may need to setup your PTR records for you. Read all of the comments regarding Multi IP in home/exim4u/public_html/exim4u/config/variables.php and etc/exim/exim4u_local.conf.inc from the exim4u distribution. Ensure that your name server's DNS zone files are setup properly for each domain/IP that will be implemented with Exim4U's multi-IP configuration and that you have reverse lookups (PTR records) working properly as well. With MULTI_IP = YES, then the IP address that is designated for each local domain within the exim4u's web interface is advertised during outgoing SMTP sessions instead of the default main IP address. For incoming mail, the IP address is designated by $received_ip_address. The domain name that is advertised is the PTR record for each IP. Therefore, reverse DNS records (PTR records) must be published for each domain. You only need to configure multi-IP for exim and your IMAP server (dovecot IMAP or courier IMAP). That is it. All other applications, including Horde, will rely on exim and your IMAP server for all incoming/outgoing mail. Refer to section 7 of the INSTALL file in the exim4u distribution for further instructions for how to configure dovecot. Exim4U's Dovecot configuration files for multiple IPs and SSL certificates are in the directory etc/dovecot. Each configuration file for each IP is named dovecot.IP.conf. For example, dovecot.127.0.0.1.conf is for the local machine whereas dovecot.111.222.333.444.conf is for IP address 111.222.333.444. The service script for dovecot must be modified for multi IPs/SSL certificates. Example service scripts are included in etc/init.d. An example Dovecot service script for multi IPs is located at etc/init.d/dovecot-MULTI_IP and the corresponding default Dovecot service script is located at etc/init.d/dovecot. Exim4U works perfectly when properly configured for multi IPs. Good luck and let me know if you have any other questions. Gordon On 10/01/2010 03:46 PM, Thomas Carrie wrote:
Hello,
I have been running exim4u with a single domain for a few months.
Now I am activating the multi IP setup before migrating my 3 domains from Vexim to Exim4u, here are my questions :
Do I need to configure new network interface for each additionnal IP on my host ?
If so, what are the servers (horde ? imap ? exim ?) that must or may take advantage of the additionnal IP by listening on a new interface associated to the IP ?
-- Thomas
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