DNS Caching Issue

2011-07-26 Thread Sathyan Arjunan (sarjunan) [CONTRACTOR]
Recent days, I am facing frequent caching issues with my DNS servers which are responsible for recursive lookup to external queries. As a temporary solution, we used to refresh the named daemon to clear the cache. To isolate this issue we upgraded the BIND to BIND 9.7.3 but even after the upgrade

Re: DNS Caching Issue

2011-07-26 Thread Kevin Darcy
On 7/25/2011 10:22 AM, Sathyan Arjunan (sarjunan) [CONTRACTOR] wrote: Recent days, I am facing frequent caching issues with my DNS servers which are responsible for recursive lookup to external queries. As a temporary solution, we used to refresh the named daemon to clear the cache. To

Re: DNS Caching Issue

2011-07-26 Thread Lyle Giese
On 07/25/11 09:22, Sathyan Arjunan (sarjunan) [CONTRACTOR] wrote: Recent days, I am facing frequent caching issues with my DNS servers which are responsible for recursive lookup to external queries. As a temporary solution, we used to refresh the named daemon to clear the cache. To isolate this

Re: DNS Caching Issue

2011-07-26 Thread Mark Andrews
The zone is badly configured so that all queries end up going to a dead server after a sucessful query. nameserver1.gpi-g.com says the NS RRset is just nameserver2.gpi-g.com. nameserver2.gpi-g.com returns SERVFAIL. Both nameservers should be listed in the zone rather than just one and the

Re: DNS Caching Issue

2011-07-26 Thread TCPWave Customer Care
lame-ttl is an option in named.conf which defines the number of seconds to cache lame delegations or lame servers i.e servers which are marked as authoitative but do not respond as authoritative. Set that option to 0 so that you will never cache a bad delegation. max-ncache-ttl sets the maximum

Re: DNS Caching Issue

2011-07-22 Thread Paul Ooi Cong Jen
What is the Caching issue are you facing. Bind should cache according to TTL. Other than that I do not see much problem from Bind. -- Paul Ooi http://systems.takizo.com On Jul 22, 2011, at 6:02 AM, Sathyan Arjunan (sarjunan) [CONTRACTOR] wrote: Recent days, I am facing frequent caching

DNS Caching Issue

2011-07-21 Thread Sathyan Arjunan (sarjunan) [CONTRACTOR]
Recent days, I am facing frequent caching issues with my DNS servers which are responsible for recursive lookup to external queries. As a temporary solution, we used to refresh the named daemon to clear the cache. To isolate this issue we upgraded the BIND to BIND 9.7.3 but even after the upgrade

Re: DNS Caching Issue

2011-07-21 Thread Chuck Swiger
On Jul 21, 2011, at 3:02 PM, Sathyan Arjunan (sarjunan) [CONTRACTOR] wrote: Recent days, I am facing frequent caching issues with my DNS servers which are responsible for recursive lookup to external queries. As a temporary solution, we used to refresh the named daemon to clear the cache. To