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Unable to connect to oracle in red hat linux

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Homework and Emergencies Emergency UNIX and Linux Support Unable to connect to oracle in red hat linux
# 8  
Old 01-17-2011
Ok, another thing to check because of the TNS error: check your /etc/hosts that the machine has an entry for itself other than 127.0.0.1.
# 9  
Old 01-17-2011
i checked it and

I think it is correct

Code:
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1               localhost.localdomain localhost
::1             localhost6.localdomain6 localhost6

# 10  
Old 01-17-2011
Nope, you'll need another entry for the machine name dhcppc0 and an IP address other than 127.0.0.1
# 11  
Old 01-17-2011
thanks pludi,
could you please tell me what line i should add
Do you mean like
Code:
127.0.5.2 dhcppc0 localhost

I am confused ,please guide me
# 12  
Old 01-17-2011
Get your current IP using ifconfig. Then add that IP to the hosts file like this
Code:
123.456.789.987 dhcppc0.local dhcppc0

and hope that you'll get the same IP again on the next reboot. Or ask your administrator for a fixed IP.
# 13  
Old 01-18-2011
I did as you told no luck. The same error I am facing.

Regards,
sanjay
# 14  
Old 02-02-2011
Usually after sucessfull oracle xe installation you get:
"Install completed sucessfully", not sure what was your status.

Try:
Quote:
/etc/init.d/oracle-xe enable
reboot your system

Quote:
Start Listener (default port 1521)
#lsnrctl start
Quote:
#lsnrctl status
it should say connected to this port.
then set the env and try connecting through sqlplus client as you mentioned you should be good.
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