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тАО12-16-2010 10:18 PM
тАО12-16-2010 10:18 PM
Our customer has an HPUX server ( BL860c ) running Oracle database under HPUX 11i V3.
They are facing the following problem :
unable to access the server through hostname from application and from telnet sessions.
No problem when using IP address.
Please advise .
Thanks and Regards
Roger
Solved! Go to Solution.
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тАО12-16-2010 10:29 PM
тАО12-16-2010 10:29 PM
Re: Hostname/ IP address
for windows machines:
WIN_DRIVE:\Windows\System32\drivers\etc\hosts
for UNIX and LINUX clients:
/etc/hosts
thanks
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тАО12-16-2010 10:38 PM
тАО12-16-2010 10:38 PM
Re: Hostname/ IP address
can you check entry on below file
more /etc/nsswitch.conf
hosts: files [NOTFOUND=continue] dns
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тАО12-16-2010 10:39 PM
тАО12-16-2010 10:39 PM
Re: Hostname/ IP address
Thanks for your concern.
The file /etc/hosts include all hostnames and IP addresses normally and the server is functionning since many months correctly.
Now rhe customer has infomed me that the problem wad fixed after rebooting HPUX , but they want to know what was the problem with the server to avoid any future similar case.
Roger
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тАО12-16-2010 11:17 PM
тАО12-16-2010 11:17 PM
Re: Hostname/ IP address
Looks like it has to be a hostname resolution problem. Without knowing what mechanism you are using it is difficult to say but it MIGHT be that the administrator has performed a hostname resolution mechanism change.
However, I would like to say this again that whenever a configuration change is made, starting that particular service might not serve the purpose as those services would have dependencies and the cleanest way of starting the services in a sequential fashion is to give a reboot if allowed which has solved your problem.
Regards
Ismail Azad
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тАО12-16-2010 11:29 PM
тАО12-16-2010 11:29 PM
Re: Hostname/ IP address
Please i want to know what are the factors in the HPUX server which could affect the hostname resolving mechanism
( processes, ....) because the problem was fixed after the reboot.
Thanks and Regards
Roger
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тАО12-17-2010 12:12 AM
тАО12-17-2010 12:12 AM
Solutionif you are referring to host name resolving mechanism,
possibilities :- "Which I can think off"
DNS Server failure
routing table (i mean if some one have removed default gateway)
inetd process down or died
hosts: files [NOTFOUND=continue] dns
Above entries should be added to continued host name resolution can be carried by /etc/hosts even though (DNS Server fails)
under file /etc/nsswitch.conf
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тАО12-17-2010 12:15 AM
тАО12-17-2010 12:15 AM
Re: Hostname/ IP address
example :- changing hostname