Not registered in DNS

[Tonatiuh]

Installing Oracle Application Server 10g (9.0.4) on Red Hat Linux 3.0 I get the following error:

DNS Lookup FAILED = Host not correctly registered in DNS

What is exactly this? how to register host in DNS?

[Ivan Ferreira]

You need to ensure that the hostname can be resolved to an ip address. Ask your DNS administrator to register the host.

OR

Make sure that the name of the host in /etc/sysconfig/network exists in the /etc/hosts file, and the IP address that correspond with this host is the IP address of the network interface ethX.

To test if your hostname resolves correctly to a IP address, you can use the ping or host command.

[Rick Garland]

What kind of system is the DNS server? WIN? LINUX?

Check and make sure that the A and PTR records are correct. Are you using DHCP?

In the /etc/sysconfig/network file there is an entry that is the $HOST name. Is this correct?

Also go into the /etc/sysconfig/network-scripts directory and view the files related to your NIC. There are entries that are DHCP specific as well.

[Patrick Terlisten]

Hi,

on whicht host do you run the dns-server? On the same machine or another machine in you network? Can you find your dns-server in the /etc/resolv.conf? What does nslookup return?

You need a correct A and PTR record in a dns-server for your RedHat host. An you need to put this dns-server in the /etc/resolv.conf file. If you run a dns-server on your RedHat host, you also need to put the ip of your RedHat host in the /etc/resolv.conf. If you use dhcp check your dhcpcd config. Maybe your dhcp-server deploy the correct dns-server, but the dhcpcd does not write these settings in the /etc/resolv.conf.

Regards,
Patrick