check Availability before sending response
bortzmeyer at nic.fr
Wed Dec 3 15:08:51 UTC 2008
On Wed, Dec 03, 2008 at 10:53:43PM +0800,
Ken DBA <mysqld at yahoo.cn> wrote
a message of 21 lines which said:
> ie, given the domain name www.site.com was pointed to 188.8.131.52 and
> 184.108.40.206 in Bind. When a client query for www.site.com, Bind will
> check the health status for these two servers. If one is
> unavailable,Bind shouldn't direct client's requests to it.
How BIND could:
* Know what protocol to test? www.site.com is probably for HTTP but
mail.site.com ? POP ? IMAP ?
* Embed all these protocols? HTTP, HTTPS, POP, IMAP, BitTorrent, DNS,
whois, FTP, SSH, SMTP...
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