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Full Discussion: DNS flush is not working
Homework and Emergencies Emergency UNIX and Linux Support DNS flush is not working Post 302667589 by solaris_1977 on Friday 6th of July 2012 01:15:41 PM
Old 07-06-2012
DNS flush is not working

I have a Linux machine and it seems DNS cache is not getting clear on it. It is still showing old values, even after changing in DNS server by Network team. I did
Code:
/etc/init.d/nscd restart

But still it is showing old values on this server.
On my rest of servers in environment, nslookup is showing updated value, so problem is only with this server.
Please advice.
 

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ldns-notify(1)						      General Commands Manual						    ldns-notify(1)

NAME
ldns-notify - notify DNS servers that updates are available SYNOPSIS
ldns-notify [options] -z zone servers DESCRIPTION
ldns-notify sends a NOTIFY message to DNS servers. This tells them that an updated zone is available at the master servers. It can perform TSIG signatures and it can add a SOA serial number of the updated zone. If a server already has that serial number it will disregard the message. OPTIONS
-z zone The zone that is updated. -h Show usage and exit -v Show the version and exit -s serial Append a SOA record indicating the serial number of the updated zone. -p port Use port as destination port (default the DNS port 53) for the UDP packets. -y key:data Use the given TSIG key and base64-data to sign the NOTIFY. Uses the hmac-md5 algorithm. -d Print verbose debug information. The query that is sent and the query that is received. -r num Specify the maximum number of retries before notify gives up trying to send the UDP packet. EXIT CODE
The program exits with a 0 exit code if all servers replied an acknowledgement to the notify message, and a failure exit code otherwise. AUTHOR
Written by the ldns team as an example for ldns usage. REPORTING BUGS
Report bugs to <ldns-team@nlnetlabs.nl>. COPYRIGHT
Copyright (C) 2005 NLnet Labs. This is free software. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR- POSE. 9 Jan 2007 ldns-notify(1)
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