Free eBook: Alternative DNS Servers
Grab this 747 pages DNS eBook for Free; Written by Jan-Piet Mens, titled “Alternative DNS Servers”. I glance through at the eBook and found several interesting topics for DNS deployments. Bind DLZ – The Bind extension which can store your…
Bind Error: “max open files (3520) is smaller than max sockets (4096)”
Just notice one of the DNS server has the error message 28-Jun-2010 16:28:24.283 general: max open files (3520) is smaller than max sockets (4096) It’s something to do with kernel setting, on FreeBSD, configure the following shell> sysctl kern.maxfiles=4096 shell>…
Turn on DNS Query Log on Bind
You are running a recursive DNS server and would like to find out the statistic of your user browser behavior (Whether they browse Facebook or Google?). Turn on DNS query logs will allow you to find out the statistic. To…
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