entry in /etc/hosts file for localhost localhost.localdomain
 

Hi All,

I need your valuable advise. I am trying to install Oracle 11g on Oracle Linux 6.2. While I was going through an article on installing 11g, I came across the following lines:

Make sure that there is an entry in /etc/hosts file for your machine like this:

[IP-address] [fully-qualified-machine-name] [machine-name]

/*
Where "fully-qualified-machine-name" is your
"machine_name"."domain_name"
*/

when I opened the /etc/hosts file following entry was there:
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain

Is the above entry currently on /etc/hosts is correct? If not then I would like to understand what I should enter on the file /etc/hosts? How I can find what is the localhost localhost.localdomin details.

Thanks
Suresh Panchanathan

The entry you show is for localhost. What you need is the real name of your machine and the domain that name exists it.

Every machine has an entry for itself to talk to itself.
You've got 1 entry there for IPv4 and one for IPv6; all perfectly normal.

HI,

As I am new to Linux I am learning through this machine. So can I modify as follows:

127.0.0.1 localhost.localdomain

instead of

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4

is this is okay?

Thanks

Suresh Panchanathan

No, if that's what the install setup, leave it alone ...

There's nothing wrong with adding entries to /etc/hosts. That's what it's there for. But leave the localhost lines.

Here's from my hosts:

For some fool reason, I name all my computers after sea creatures.