Changing the IP Address of Openexchange Server

Support knowledgebase (rsimai_slox_change_IP)
Applies to

Openexchange Server: Version 4

Concern

How to change the IP address of Openexchange Server.

Requirements

You can use YaST for the basic change.
However, YaST is not able to change the IP address in all places where this is necessary. The major part of the DNS configuration is in LDAP; YaST cannot perform any changes here.
If you do not use the local DNS, you do not necessarily have to perform these changes. However, remember that an operational DNS is imperative for a mail server, and the default setting is to use the local DNS!
Depending on the setup, Postfix or other services you configured manually may also have to be modified.

The following values are used in this example:
old valuenew value
IP address10.10.10.16192.168.0.1
Subnet mask255.255.0.0255.255.255.0
The host name cheetah is not changed.

Procedure

  1. Make a backup copy of the LDAP directory /var/lib/ldap

  2. Log in with the browser as cyrus and select Tools, LDAP Browser and view the entries under o=DNS. You will see three entries:

  3. Edit the entry relativeDomainName=@ as follows:
    old valuenew value
    zoneName10.10.IN-ADDR.ARPA0.168.192.IN-ADDR.ARPA
    aRecord10.10.10.16192.168.0.1

  4. Edit the entry relativeDomainName=cheetah as follows:
    old valuenew value
    aRecord10.10.10.16192.168.0.1

  5. Edit the entry relativeDomainName=16.10 as follows:
    old valuenew value
    zoneName10.10.IN-ADDR.ARPA0.168.192.IN-ADDR.ARPA
    relativeDomainName16.101

  6. Exit the LDAP browser, select Hosts and Domains, Virtual Domains, and click Export. The DNS configuration will be saved and the DNS will read its configuration anew. Use the commands host, dig, or nslookup to check if your modifications were successful.

  7. Log in locally to the server as root in a console and use YaST to change the IP address in the network configuration. The network will be restarted, after which the server can be accessed under the new address.

  8. If you performed changes in the Postfix configuration, check these. You should especially check if the parameter $mynetworks in /etc/postfix/main.cf is still up to date.
    If you configured any additional services for which you specified IP addresses, check their configurations too.
Keywords: OPENEXCHANGESERVER, SLOX, CHANGE, IP, NETWORK, ADDRESS

Categories: SuSE Linux IMAP Server

SDB-rsimai_slox_change_IP, Copyright SuSE Linux AG, Nürnberg, Germany - Version: 19. Dec 2002
SuSE Linux AG - Last generated: 19. Dec 2002 by afaber (sdb_gen 1.40.0)