Perhaps the host cache needs to be invalidated (nscd, sssd)? What OS and version are you using?
From man nscd of an old version of nscd for example:
Code:
NOTES
Nscd doesn't know anything about the underlaying protocols for a ser-
vice. This also means, that if you change /etc/resolv.conf for DNS
queries, nscd will continue to use the old one if you have configured
/etc/nsswitch.conf to use DNS for host lookups. In such a case, you
need to restart nscd.
Newer version of nscd try to watch for changes to this file, but even then there may be a delay..
NOTES
The daemon will try to watch for changes in configuration files appropriate for each data-
base (e.g., /etc/passwd for the passwd database or /etc/hosts and /etc/resolv.conf for the
hosts database), and flush the cache when these are changed. However, this will happen
only after a short delay (unless the inotify(7) mechanism is available and glibc 2.9 or
later is available), and this auto-detection does not cover configuration files required
by nonstandard NSS modules, if any are specified in /etc/nsswitch.conf. In that case, you
need to run the following command after changing the configuration file of the database so
that nscd invalidates its cache:
$ nscd -i <database>
I don't have DNS, and would like to resolve EVERYTHING through local /etc/hosts file.
My first sunbox has the following configuration:
# hostname
mybox.home.com
My host file is as follows:
# cat /etc/hosts
#
# Internet host table
#
127.0.0.1 localhost
192.25.x.x ... (6 Replies)
hey guys, how to add soalris box as a microsoft DNS Client ?
and how to register in the microsoft DNS ??
i managed to query from the DNS server after adding /etc/resolve.conf and editing /etc/nsswitch.conf
but i need to register the soalris server (dns Client) into Microsoft DNS automatically.... (3 Replies)
#!/bin/sh# 'clear'for i in $(seq -w 15 37)doecho $iecho The content in ZZ=`wget --dns-timeout=0.001 http://napdweb${i}.eao.abn-iad.ea.co.../test/test.jsp`echo $ZA="Connection timed out."echo The content in Aecho $Aexpr "$A" : '..\(...\)'echo $Adone
Hi,Please see the above program.
The above... (9 Replies)
Hi!
I have a dns server (bind) with 2 zones forward and reverse and i need to resolve one ip completely different. I have add to /etc/hosts and i can ping but i can't do nslookup. I've tried to add the dns server responsible to resolve that ip on /etc/resolv.conf without success. So how can i... (2 Replies)
I'd like to get some opnions on choosing DNS server:
Windows DNS vs Linux BIND comparrsion:
1) managment, easy of use
2) Security
3) features
4) peformance
5) ??
I personally prefer Windows DNS server for management, it supports GUI and command line. But I am not sure about security... (2 Replies)
Dear Members,
Please help me to resolve below script. The script is used to send the attachment in the mail with all the details. However in one of the incidents, the attachment in the mail was blank. Now the client is after me to get it resolved ASAP. So prompt response would be highly... (2 Replies)
Hi,
I have a question on how to point the DNS server-1's A-record to second DNS server, which is DNS server-2. So, the computer can access other domain which only listed in the DNS server-2. The scenario is as follow:
http://img689.imageshack.us/img689/6333/12234.png
How to configure this... (4 Replies)
I am trying to setup a CentOS 6.2 server that will be doing 3 things DHCP, DNS & Samba for a very small office (2 users). The idea being this will replace a very old Win2k server. The users are all windows based clients so only the server will be Linux based.
I've installed CentOS 6.2 with... (4 Replies)
Hi,
We have built a new server (RHEL VM)and added that IP/hostname into dns zone configs file on DNS server (Solaris 10). Reloaded the configuration using
and added nameserver into resolv.conf on client. But when I am trying nslookup, its not getting resolved. The nameserver is not able to... (8 Replies)
Discussion started by: snchaudhari2
8 Replies
LEARN ABOUT REDHAT
nscd
nscd(8) System Manager's Manual nscd(8)NAME
/usr/sbin/nscd - name service cache daemon
DESCRIPTION
Nscd is a daemon that provides a cache for the most common name service requests. The default configuration file, /etc/nscd.conf, deter-
mines the behavior of the cache daemon. See nscd.conf(5).
Nscd provides cacheing for the passwd(5), group(5), and hosts(5) databases through standard libc interfaces, such as getpwnam(3), getp-
wuid(3), getgrnam(3), getgrgid(3), gethostbyname(3), and others. Each cache has a separate TTL (time-to-live) for its data; modifying the
local database (/etc/passwd, and so forth) causes the cache to become invalidated within fifteen seconds. Note that the shadow file is
specifically not cached. getspnam(3) calls remain uncached as a result.
OPTIONS --help will give you a list with all options and what they do.
NOTES
Nscd doesn't know anything about the underlaying protocols for a service. This also means, that if you change /etc/resolv.conf for DNS
queries, nscd will continue to use the old one if you have configured /etc/nsswitch.conf to use DNS for host lookups. In such a case, you
need to restart nscd.
SEE ALSO nscd.conf(5), nsswitch.conf(5)AUTHOR
nscd was written by Thorsten Kukuk and Ulrich Drepper.
GNU C Library 1999-10 nscd(8)