I can nslookup but not ping...

IRIX (marduk)
 
login: root
Password:
IRIX Release 6.5 IP32 marduk
Copyright 1987-1998 Silicon Graphics, Inc. All Rights Reserved.
Last login: Thu Feb 14 16:13:18 PST 2008 by UNKNOWN@10.1.3.241
bash#
bash#
bash# nslookup ad2.com
Server:  resolv-va1.ns.eni.net
Address:  205.214.45.10
 
Non-authoritative answer:
Name:    ad2.com
Address:  64.93.69.43
 
bash# ping ad2.com
ping: Cannot resolve "ad2.com" (Unknown host)
bash#
                                              

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bash# cat /etc/resolv.conf
nameserver 205.214.45.10
nameserver 205.214.51.16
#nameserver 10.1.3.112
#nameserver 65.113.20.253
#nameserver 65.113.20.254
bash#
                                              

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par -sSS nslookup ad2.com
                                              

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bash# ls -l $HOME/.nslookup
Cannot access //.nslookup: No such file or directory
bash# par -sSS nslookup ad2.com | grep '"'
    0mS                 : execve("/usr/sbin/nslookup", 0x7fff2f5c, 0x7fff2f68)
    3mS                 : open("/lib32/rld", O_RDONLY, 04) = 3
    4mS                 : open("/dev/zero", O_RDONLY, 0) = 3
    9mS                 : open("/etc/resolv.conf", O_RDONLY, 0666) = 3
    9mS                 : read(3, "nameserver 205.214.45.10\nnames", 4096) = 125
   10mS                 : gethostname("marduk", 255) OK
   11mS                 : open("//.nslookuprc", O_RDONLY, 0666) errno = 2 (No such file or directory)
  136mS                 : write(1, "Server:  resolv-va1.ns.eni.net", 122) = 122
bash# par -sSS ping ad2.com | grep '"'
ping: Cannot resolve "ad2.com" (Unknown host)
    0mS                 : execve("/usr/sbin/ping", 0x7fff2f5c, 0x7fff2f68) errno = 2 (No such file or directory)
    0mS                 : execve("/usr/bsd/ping", 0x7fff2f5c, 0x7fff2f68) errno = 2 (No such file or directory)
    0mS                 : execve("/sbin/ping", 0x7fff2f5c, 0x7fff2f68) errno = 2 (No such file or directory)
    0mS                 : execve("/usr/bin/ping", 0x7fff2f5c, 0x7fff2f68) errno = 2 (No such file or directory)
    1mS                 : execve("/etc/ping", 0x7fff2f5c, 0x7fff2f68) errno = 2 (No such file or directory)
    1mS                 : execve("/usr/etc/ping", 0x7fff2f5c, 0x7fff2f68)
    4mS                 : open("/lib32/rld", O_RDONLY, 04) = 3
    5mS                 : open("/dev/zero", O_RDONLY, 0) = 3
    8mS                 : stat("/etc/hosts", 0x7fff2d40) OK
    9mS                 : open("/var/ns/cache/hosts.byname", O_RDONLY, 0400) = 3
   10mS                 : write(2, "ping: ", 6) = 6
   10mS                 : write(2, "Cannot resolve "", 16) = 16
   10mS                 : write(2, "ad2.com"", 8) = 8
   10mS                 : write(2, " (", 2) = 2
   10mS                 : write(2, "Unknown host", 12) = 12
   10mS                 : write(2, ")", 1) = 1
   10mS                 : write(2, "\n", 1) = 1
bash# more /var/ns/cache/README
                DO NOT DELETE FILES IN THIS DIRECTORY
 
The files in this directory are mdbm files which holds a systemwide cache
of name-service results, and may be held open by long running processes.
Deleting these files will NOT free the disk space that is used, and will
NOT cause nsd or any other application that is running to flush their name
service cache that is contained in the file.
 
The command /sbin/mdbm_remove will safely and correctly mark the mdbm file
as invalid and unlink the file.   All running applications will notice this
on their next access of these caches, and do the right thing.   mdbm_remove
will only delete mdbm_files.
 
bash# /sbin/mdbm_remove /var/ns/cache/hosts.byname
bash# par -sSS ping ad2.com | grep '"'
ping: Cannot resolve "ad2.com" (Unknown host)
    0mS                 : execve("/usr/sbin/ping", 0x7fff2f5c, 0x7fff2f68) errno = 2 (No such file or directory)
    0mS                 : execve("/usr/bsd/ping", 0x7fff2f5c, 0x7fff2f68) errno = 2 (No such file or directory)
    0mS                 : execve("/sbin/ping", 0x7fff2f5c, 0x7fff2f68) errno = 2 (No such file or directory)
    0mS                 : execve("/usr/bin/ping", 0x7fff2f5c, 0x7fff2f68) errno = 2 (No such file or directory)
    1mS                 : execve("/etc/ping", 0x7fff2f5c, 0x7fff2f68) errno = 2 (No such file or directory)
    1mS                 : execve("/usr/etc/ping", 0x7fff2f5c, 0x7fff2f68)
    4mS                 : open("/lib32/rld", O_RDONLY, 04) = 3
    5mS                 : open("/dev/zero", O_RDONLY, 0) = 3
    9mS                 : stat("/etc/hosts", 0x7fff2d40) OK
    9mS                 : open("/var/ns/cache/hosts.byname", O_RDONLY, 0400) errno = 2 (No such file or directory)
    9mS                 : access("/ns/.local/hosts.byname", X_OK|EFF_ONLY_OK) OK
   11mS                 : open("/ns/.local/hosts.byname/ad2.com", O_RDONLY, 02001336400) errno = 2 (No such file or directory)
   12mS                 : write(2, "ping: ", 6) = 6
   12mS                 : write(2, "Cannot resolve "", 16) = 16
   12mS                 : write(2, "ad2.com"", 8) = 8
   12mS                 : write(2, " (", 2) = 2
   13mS                 : write(2, "Unknown host", 12) = 12
   13mS                 : write(2, ")", 1) = 1
   13mS                 : write(2, "\n", 1) = 1
bash#
                                              

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