BismillahirRehmanirRahim

Hi Admins,


i am facing a strange problem in one of our SunFire v215 Servers.


the ping to the hostname of the Server and ping to the hostname of
any
other server in /etc/hosts fail.


but if you ping with IP_Adress it get success. i.e.


hostname=mytest ; IP=10.54.23.1 , hostname2=mydev ; IP2=10.54.23.2


ping mytest
[ failed ]


ping 10.54.23.1
[success]


ping mydev
[ failed ]


ping 10.54.23.2
[ success]


I dont know why its unable to resolve hostname from /etc/hosts.


i didnt find any error in /var/adm/messages


its very urgent, hope to hear soon from you.


Your Junior
Salman

"Salman" <hudamuslim@gmail.com> wrote in message news:1186030243.968494.199760@57g2000hsv.googlegroups.com...

>
> I dont know why its unable to resolve hostname from /etc/hosts.

What is in /etc/nsswitch.conf ? Try: getent hosts servername

-- 
John.

On Aug 2, 12:01 am, "John L" <j...@lammtarra.notthisbit.fslife.co.uk>
wrote:
> "Salman" <hudamus...@gmail.com> wrote in messagenews:1186030243.968494.199760@57g2000hsv.googlegroups.com...
>
> > I dont know why its unable to resolve hostname from /etc/hosts.
>
> What is in /etc/nsswitch.conf ? Try: getent hosts servername
>
> --
> John.

Also check your /etc/inet/ipnodes file. Usually I just cp /etc/hosts
to /etc/inet/ipnodes since I am not using ip6. But Sol10 checks
ipnodes first before hosts. That is stated in the nsswitch.conf file.

BismillahirRehmanirRahim

Hi All,

Just wanted to update you all about the status of this problem.

Alhumdolillaah, its working fine now.

All i did is to add the /etc/inet/hosts files entries in /etc/inet/
ipnodes.

previously ipnodes file was as below:

------------------------------------------------
[root@prod-01 /]# more /etc/inet/ipnodes
#
# Internet host table
#
::1             localhost
127.0.0.1       localhost
------------------------------------------------

I checked the ipnodes of other SunFire Servers they are same as above.
and they are able to ping other hosts mentioned in /etc/hosts using
their hostname.

So Still i am not sure what was the actual problem. The O/s is Solaris
9:

SunOS prod-01  5.9 Generic_118558-28

 The /etc/nsswitch.conf file is as follow:

------------------------------------------------------------------------------
# /etc/nsswitch.dns:
#
# An example file that could be copied over to /etc/nsswitch.conf; it
uses
# DNS for hosts lookups, otherwise it does not use any other naming
service.
#
# "hosts:" and "services:" in this file are used only if the
# /etc/netconfig file has a "-" for nametoaddr_libs of "inet"
transports.

passwd:     files
group:      files

# You must also set up the /etc/resolv.conf file for DNS name
# server lookup.  See resolv.conf(4).
hosts:      files dns
ipnodes:    files
-----------------------------------------------------------------------------

The output of getent hosts host_name was okay.

If anyone get some clue regarding this issue then let me know.


Thanks for all who tried to help me out. i really appreciate them.

Your Junior Admin
Salman


On Aug 3, 5:24 pm, tinman <adam.richa...@gmail.com> wrote:
> On Aug 2, 12:01 am, "John L" <j...@lammtarra.notthisbit.fslife.co.uk>
> wrote:
>
> > "Salman" <hudamus...@gmail.com> wrote in messagenews:1186030243.968494.199760@57g2000hsv.googlegroups.com...
>
> > > I dont know why its unable to resolve hostname from /etc/hosts.
>
> > What is in /etc/nsswitch.conf ? Try: getent hosts servername
>
> > --
> > John.
>
> Also check your /etc/inet/ipnodes file. Usually I just cp /etc/hosts
> to /etc/inet/ipnodes since I am not using ip6. But Sol10 checks
> ipnodes first before hosts. That is stated in the nsswitch.conf file.