Re: Anycast DNS - LB/LTM

2012-03-12 Thread ju wusuo
...@nachtmaus.us To: ju wusuo juwu...@yahoo.com Cc: bind-users@lists.isc.org bind-users@lists.isc.org Sent: Saturday, March 10, 2012 3:31 PM Subject: Re: Anycast DNS - LB/LTM Exactly. The script runs inside the LTM, and wraps nslookup or dig. It should output a distinct output for success

Re: Anycast DNS - LB/LTM

2012-03-10 Thread David Klein
the advertising? -- *From:* David Klein r...@nachtmaus.us *To:* ju wusuo juwu...@yahoo.com *Cc:* bind-users@lists.isc.org bind-users@lists.isc.org *Sent:* Wednesday, March 7, 2012 11:18 PM *Subject:* Re: Anycast DNS You would need to create a custom script to use as your

Re: Anycast DNS - LB/LTM

2012-03-09 Thread ju wusuo
Klein r...@nachtmaus.us To: ju wusuo juwu...@yahoo.com Cc: bind-users@lists.isc.org bind-users@lists.isc.org Sent: Wednesday, March 7, 2012 11:18 PM Subject: Re: Anycast DNS You would need to create a custom script to use as your monitor, which does a lookup of an address that you know

Re: Anycast DNS

2012-03-07 Thread ju wusuo
thanks everyone for all responses with the great inputs .. now if I want to put the DNS servers behind LBs, 1) would the LTMs be able to announce the routes dynamically for the DNS servers, and a VIP can be withdrawn when the site is gone? 2) would the LTMs be able to detect a DNS service

Re: Anycast DNS

2012-03-07 Thread David Klein
You would need to create a custom script to use as your monitor, which does a lookup of an address that you know will always be in your domain. If that fails, force-down/inactive the node, and tie this script as a monitor to the pool holding the DNS server nodes. You can advertise the /32

Re: Anycast DNS

2012-03-01 Thread Phil Mayers
On 29/02/12 03:55, ju wusuo wrote: Have seen some anycast DNS implementations using more than one address, some times even on the same subnet, any considerations or reasons for doing that? We do that. We use two different, indepentent methods to route traffic to the IPs. We feel

Re: Anycast DNS

2012-03-01 Thread sthaug
Have seen some anycast DNS implementations using more than one address, some times even on the same subnet, any considerations or reasons for doing that? We do that. We use two different, indepentent methods to route traffic to the IPs. We feel this provides a greater degree

Re: Anycast DNS

2012-02-29 Thread takizo
Ju, What do you mean on more than one address? -- Paul Ooi On Feb 29, 2012, at 11:55 AM, ju wusuo wrote: Have seen some anycast DNS implementations using more than one address, some times even on the same subnet, any considerations or reasons for doing

Re: Anycast DNS

2012-02-29 Thread Barry Margolin
wrote: Have seen some anycast DNS implementations using more than one address, some times even on the same subnet, any considerations or reasons for doing that? I assume he's asking why Google has 8.8.8.8 and 8.8.4.4, and why whoever runs 4.2.2.2 has 4.2.2.1, 4.2.2.2, etc. I don't have

RE: Anycast DNS

2012-02-29 Thread Todd Snyder
: Anycast DNS Have seen some anycast DNS implementations using more than one address, some times even on the same subnet, any considerations or reasons for doing that? - This transmission (including any attachments) may contain

Re: Anycast DNS

2012-02-29 Thread Beavis
@lists.isc.org Subject: Anycast DNS Have seen some anycast DNS implementations using more than one address, some times even on the same subnet, any considerations or reasons for doing that? - This transmission (including

Anycast DNS

2012-02-28 Thread ju wusuo
Have seen some anycast DNS implementations using more than one address, some times even on the same subnet, any considerations or reasons for doing that? ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list