Slaving root zone

Old topic to be discussed.

Slaving the following zones from the root name servers has some significant advantages:
1. Faster local resolution for your users
2. No spurious traffic will be sent from your network to the roots
3. Greater resilience to any potential root server failure/DDoS


On the other hand, this method requires more monitoring than the hints file to be sure that an unexpected failure mode has not incapacitated your server.  Name servers that are serving a lot of clients will benefit more from this approach than individual hosts.

great! now Bind 9.9.0 supports raw file for slave zone.

References:
[1] FreeBSD's /etc/namedb/named.conf
[2] https://www.isc.org/software/bind/new-features/9.9

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http://www.soumu.go.jp/main_sosiki/joho_tsusin/eng/presentation/pdf/111208_1.pdf
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Presentation "Cloud Services in Japan" is available on
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Presentation "Law and Policy for Broadband Deployment in Japan" is available on
http://www.soumu.go.jp/main_sosiki/joho_tsusin/eng/presentation/pdf/100408_1.pdf
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Presentation of Japan National Broadband Policies is available on:
http://www.soumu.go.jp/main_sosiki/joho_tsusin/eng/presentation/pdf/091019_1.pdf
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Maintaining Communications Capabilities during Major Natural Disasters and other Emergency Situations

Final report from Internal Affairs and Communications "Maintaining Communications Capabilities during Major Natural Disasters and other Emergency Situations" is available on
http://www.soumu.go.jp/main_content/000146938.pdf
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flow

flowtable on FreeBSD 8.0:

net.inet.flowtable.nmbflows: 4096
net.inet.flowtable.tcp_expire: 86400
net.inet.flowtable.fin_wait_expire: 600
net.inet.flowtable.udp_expire: 300
net.inet.flowtable.syn_expire: 300
net.inet.flowtable.collisions: 1
net.inet.flowtable.max_depth: 1
net.inet.flowtable.free_checks: 2519
net.inet.flowtable.frees: 473
net.inet.flowtable.misses: 475
net.inet.flowtable.lookups: 46289
net.inet.flowtable.hits: 45814
net.inet.flowtable.enable: 1