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Home > Archive > Unix administration > August 2006 > unable to resolve IP address from hosts file
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unable to resolve IP address from hosts file
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| mehaboob@gmail.com 2006-08-23, 1:27 pm |
| Hi,
I have HP UX box :HP-UX B.11.23 U ia64 0468963392
The /etc/hosts file has entry as below
16.81.21.52 box1.gb.tel.com box1
When I use the command below,
$ping box1.gb.tel.com,the response is fine
PING box1.gb.tel.com: 64 byte packets
64 bytes from 16.81.21.52: icmp_seq=0. time=0. ms
64 bytes from 16.81.21.52: icmp_seq=1. time=0. ms
64 bytes from 16.81.21.52: icmp_seq=2. time=0. ms
But when I tried using the command below,there is no respone
$ping box1
1)Seems like ping command is not looking into /etc/hosts file to get
the ip address
2)Also tried telnet command...similar behaviour is seen.
Tried googling but not of much use.Any idea what could be the reason.
Regards,
Mehaboob
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| Barry Margolin 2006-08-23, 7:27 pm |
| In article <1156347500.139559.217550@74g2000cwt.googlegroups.com>,
mehaboob@gmail.com wrote:
> Hi,
>
> I have HP UX box :HP-UX B.11.23 U ia64 0468963392
>
> The /etc/hosts file has entry as below
> 16.81.21.52 box1.gb.tel.com box1
>
> When I use the command below,
> $ping box1.gb.tel.com,the response is fine
> PING box1.gb.tel.com: 64 byte packets
> 64 bytes from 16.81.21.52: icmp_seq=0. time=0. ms
> 64 bytes from 16.81.21.52: icmp_seq=1. time=0. ms
> 64 bytes from 16.81.21.52: icmp_seq=2. time=0. ms
>
>
> But when I tried using the command below,there is no respone
> $ping box1
>
> 1)Seems like ping command is not looking into /etc/hosts file to get
> the ip address
> 2)Also tried telnet command...similar behaviour is seen.
>
> Tried googling but not of much use.Any idea what could be the reason.
Does /etc/nsswitch.conf say to use the hosts file for hostname lookups?
--
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***
*** PLEASE don't copy me on replies, I'll read them in the group ***
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| I encountered the same issue a few years ago. After experimenting with
ideas, I added two seperate entries in /etc/hosts such as follows:
16.81.21.52 box1.gb.tel.com box1
16.81.21.52 box1 box1
You could add multiple instances of hostnames in /etc/hosts so they
point to a specific IP address. It's obvious that this wouldn't be
the proper way of addressing the problem, however, it worked for me.
Kevin Curtis, Jr.
kevin@unixsite.net
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| Renato 2006-08-24, 7:26 am |
| mehaboob@gmail.com wrote:
> But when I tried using the command below,there is no respone
> $ping box1
Does HP UX have /etc/resolv.conf ? If so, put the line below on it:
domain gb.tel.com
or, if your domain is other, you can include it on the search:
search yourdomain.com gb.tel.com
Remember that the order is important on search, so if there's a
box1.yourdomain.com it'll be ping'd instead of box1.gb.tel.com.
cheers,
--renato
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| mehaboob@gmail.com 2006-08-24, 1:38 pm |
|
Renato wrote:
> mehaboob@gmail.com wrote:
>
> Does HP UX have /etc/resolv.conf ? If so, put the line below on it:
> domain gb.tel.com
>
> or, if your domain is other, you can include it on the search:
> search yourdomain.com gb.tel.com
>
> Remember that the order is important on search, so if there's a
> box1.yourdomain.com it'll be ping'd instead of box1.gb.tel.com.
>
> cheers,
> --renato
Hi,
Thanks a lot for the reply.
Updated the /etc/nsswitch.conf to look into the hosts files and DNS.
Thanks,
Mehaboob
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