What is localhost Localdomain?
localhost is a hostname. localdomain is a domain name. localhost.localdomain is a FQDM… well fully qualified on the localsystem. You need that record because it is suppose to be there.
How do I find my Oracle host name?
The HOST_NAME column of the V$INSTANCE view contains the host name of the server running the instance.
How do I change the hostname in Oracle?
Shutdown the Oracle listener service and the Oracle database. Open the file /network/admin/tnsnames. ora in a text editor. Change the hostname in the file to the new hostname, and save the file.
How do I change the hostname in CentOS?
How to Change Centos Hostname
- Step 1: Check Existing Hostname.
- Step 2: Set a New Static Hostname.
- Step 3: Check the Hostname.
- Step 4: Edit the /etc/hosts File.
- Step 5: Reboot and Check CentOS 7 machine hostname.
- Step 6 (Optional): Using a Pretty Hostname.
- Step 7 (Optional): Setting a Transient Hostname.
How do I find my Oracle database address?
Check and change the IP address of the Oracle database listener.
- Open the listener. ora file. In the following example, 10.137. 59.87 is the current IP address of the Oracle database listener.
- Open the tnsnames. ora file. In the following example, 10.137. 59.87 is the current IP address of the Oracle database listener.
How do I change the hostname in Oracle restart standalone configuration?
Set ASM Profile and go to $ORACLE_HOME/crs/install directory. Change hostname in this step. I have changed my hostname from deveci to MehmetSalih in the /etc/hosts and /etc/sysconfig/network files. Reboot server and then check Hostname.
How do I change the hostname in grid infrastructure?
- /etc/sysconfig/network. Edit this file and set the new name.
- /etc/hosts. Update /etc/hosts as appropriate.
- ifcfg-ethX. Change the IP address.
- listener.ora. Change the hostname in the listener configuration file.
How do I find my hostname in CentOS?
The procedure to find the computer name on Linux:
- Open a command-line terminal app (select Applications > Accessories > Terminal), and then type:
- hostname. hostnamectl. cat /proc/sys/kernel/hostname.
- Press the [Enter] key.
What is Oracle SID and service name?
Oracle SID is the unique name that uniquely identifies your instance/database, whereas the Service name is the TNS alias that you give when you remotely connect to your database, and this Service name is recorded in tnsnames.
How do I change the hostname in RAC?
The only way to change private hostname is by deleting/adding nodes, or reinstall Oracle Clusterware. In 11.2 Grid Infrastructure, private hostname is no longer recorded in OCR and there is no dependency on the private hostname. It can be changed freely in /etc/hosts.
How do I find my hostname on Linux?
Finding the computer name on Linux
- Open a terminal. To open a terminal in Ubuntu, select Applications -> Accessories -> Terminal.
- Type hostname at the command line. This will print your computer name on the next line.
Where do I put the hostname on my localhost?
I personally recommend to put the hostname in the localhost line as well as creating a new line with the actual IP address, although the later is not really necessary. For instance: 127.0.0.1 myhostname.localdoman myhostname localhost.localdomain localhost 192.168.196.102 myhostname.localdoman myhostname
What is the default host name and IP address of Oracle?
The thing is that when I installed the Operating System Oracle Linux 5, its default host name is “localhost.localdomain” and default IP address is 127.0.0.1. Now, its IP address has been configured as 192.168.196.102 but its host name remain as “localhost.localdomain”.
What is the IP address of localhost now?
Now, its IP address has been configured as 192.168.196.102 but its host name remain as “localhost.localdomain”. The hard-coded relationship “localhost.localdomain and 127.0.0.1” is breaked down and causes problems.
Why is localhost not an FQDN?
It’s because localhost.localdomain is not actually considered an FQDN and is thus specifically broken so that applications don’t treat it as such. This is particularly obvious if you enable things like Avahi/mDNS which use .local for auto-discovery.