NIS:low response when tried to ping a none-exist host

[leereg_6]

Hi, Gurus,
When I tried to ping a non-exist host on my nis slave server. It took long time to prompt the following message.
# ping dds
ping: unknown host dds


Does my NIS master or slave has some problem? How to improve it?
Thanks a lot!

[U.SivaKumar_2 · Accepted solution]

Hi,

Can you paste the contents of /etc/nsswitch.conf file ?

regards,
U.SivaKumar

[Donald Kok]

Hi,

Mostky this is due to problems with resolving the IPadres from the hostname. You can check this by
nslookup dds
the configuration of hostname resolving is done in two file: /etc/resolv.conf and /etc/nsswitch.conf; whixh both have a decent man-page.

Hope this helps
Donald

[leereg_6]

# cat nsswitch.conf
#
# /etc/nsswitch.nis:
#
# An example file that could be copied over to /etc/nsswitch.conf; it
# uses NIS (YP) in conjunction with files.
#
# "hosts:" and "services:" in this file are used only if the
# /etc/netconfig file has a "-" for nametoaddr_libs of "inet" transports.

# the following two lines obviate the "+" entry in /etc/passwd and /etc/group.
passwd: files nis
group: files nis

# consult /etc "files" only if nis is down.
hosts: files nis dns
ipnodes: files
# Uncomment the following line and comment out the above to resolve
# both IPv4 and IPv6 addresses from the ipnodes databases. Note that
# IPv4 addresses are searched in all of the ipnodes databases before
# searching the hosts databases. Before turning this option on, consult
# the Network Administration Guide for more details on using IPv6.
#ipnodes: nis [NOTFOUND=return] files
networks: nis [NOTFOUND=return] files
protocols: nis [NOTFOUND=return] files
rpc: nis [NOTFOUND=return] files
ethers: nis [NOTFOUND=return] files
netmasks: nis [NOTFOUND=return] files
bootparams: nis [NOTFOUND=return] files
publickey: nis [NOTFOUND=return] files

netgroup: nis

automount: files nis
aliases: files nis

# for efficient getservbyname() avoid nis
services: files nis
sendmailvars: files
printers: user files nis

auth_attr: files nis
prof_attr: files nis
project: files nis

[U.SivaKumar_2]

Hi,

modify the hosts: line to this.

hosts: nis files

Try again , does the problem exists ?

regards,
U.SivaKumar