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Top Forums UNIX for Advanced & Expert Users ping and telnet - HP-UX Post 302442968 by newbie_01 on Friday 6th of August 2010 05:29:15 AM

08-06-2010

Registered User

ping and telnet - HP-UX

Hi all,

I am not sure if my problem is specific to HP-UX or not. Hopefully someone can tell me what's wrong.

I have a server name server1 10.100.50.10 in the /etc/hosts file and if I do a ping server1, it shows the right IP address.

However, if I run telnet server1, it is not using 10.100.50.10 but the one that is on the DNS server. Can someone please advise if this is the "normal" or expected behavior of telnet? Is there something that I have to do to force telnet to resolve the name using the /etc/hosts file first instead of the DNS server?

FYI, I checked the /etc/nsswitch.conf and I do not have uncommented entries there which means it is not used. I have the /etc/resolv.conf file but I presume that the order of name resolution is the /etc/hosts first and then /etc/resolv.conf, is this a wrong assumption?

Any advise will be very much appreciated. Thanks in advance.

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resolvxc

RESOLV.CONF(5)							File Formats Manual						    RESOLV.CONF(5)

NAME

       resolv.conf - Domain Name System resolver configuration

SYNOPSIS

       /etc/resolv.conf

DESCRIPTION

       The  /etc/resolv.conf  is used to configure how the host will use the Domain Name System to resolve hostnames to IP addresses.  It may con-
       tain these two lines:

	      nameserver     IP-address
	      domain	     domain-name

       The nameserver entry tells the IP address of the host to use for DNS queries.  If it is set to 127.0.0.1 (which is the  default)  then  the
       local  name  daemon is used that may use the /etc/hosts database to translate host names.  You normally only need a nameserver entry if the
       name server is at the other side of a router.  The default nonamed name server can't look beyond the local network.

       The domain entry tells the default domain to use for unqualified hostnames.  This entry is usually not given in which case  the	domain	of
       the local host is used.

       The long version of this story can be found in resolver(5).

FILES

       /etc/resolv.conf    DNS resolver configuration file.

SEE ALSO

       resolver(5), hosts(5), nonamed(8), boot(8).

AUTHOR

       Kees J. Bot (kjb@cs.vu.nl)

																    RESOLV.CONF(5)

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