Re: Loadbalance caching dns server
On Tue, Mar 20, 2012 at 4:40 PM, Stefan Certic wrote: > Hi, > > That can be achieved using iptables: > > iptables -A PREROUTING -i eth0 -p tcp --dport 53 -m state --state NEW -m > nth --counter 0 --every N --packet 0 -j DNAT --to-destination > 192.168.1.98:53 > iptables -A PREROUTING -i eth0 -p tcp --dport 53 -m state --state NEW -m > nth --counter 0 --every N --packet 1 -j DNAT --to-destination > 192.168.1.99:53 > > Where N represent packet number. > > Regards, > > On Tue, Mar 20, 2012 at 10:11 AM, trm asn wrote: > >> Dear List, >> >> Is there any mechanism to load balance Caching-DNS server. For example.. >> >> Cache-DNS1 : 192.168.1.98 >> Cache-DNS2: 192.168.1.99 >> >> Client : 192.168.1.199 >> >> When 192.168.1.199 send 10 request to query cache-dns then this 10 >> request will be send to each Cache-DNS server with a load balance method. >> Each server will get 5 requests. >> >> >> /\ >> TRM >> >> _ >> > Requirement is slightly different. The client's request can go to any of the Caching server. If one of the Caching server down, then also it should serve the request from 2nd server. Is there any way where I can configure the VIP and that VIP will communicate to the down stream both the caching dns server. So the client will be configured with VIP in resolve.conf file. /\ TRM ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Subdomain Issue
On Thu, Nov 10, 2011 at 8:28 PM, Lyle Giese wrote: > On 11/09/11 15:59, trm asn wrote: > >> >> >> On Wed, Nov 9, 2011 at 3:15 PM, Matus UHLAR - fantomas >> mailto:uh...@fantomas.sk>> wrote: >> >>Now I have only one question: >> >> >>On 08.11.11 20:27, trm asn wrote: >> >>The moment I have done the "rndc reload example.com >><http://example.com>", the domain and all >> >>subdomain were became not resolvable. >> >> >>what does the named's log say? >> >>-- >> >> >> Is there any thing wrong if I declare my zone like this as below... >> >> $TTL 300 >> @ IN SOA ns4.example.com. postmaster.example.com. ( >> 200806 ; Serial Number >> 10800 ; Refresh after 3 hours >> 3600; Retry after 1 hour >> 604800 ; Expire after 1 week >> 300 ) ; Minimum TTL of 1 day >> ; Name servers >> IN NS ns4.example.com >> IN NS ns2.example.com >> IN NS ns1.example.com >> testINNS ns1973.hostgator.com >> testINNS ns1974.hostgator.com >> >> INA203.39.45.19 >> INMX mail.goole.com >> wwwINCNAME example.com >> >> aINA203.39.45.20 >> bINA203.39.45.21 >> >> >> /\ >> *Tarak* >> * >> > > Where are your A records for your name servers, ns1.example.com, ns2, > example.com and ns4.example.com? > > And please answer the question above, what does the named's log say when > starting up? > > Lyle Giese > LCR Computer Services, Inc. > > ns4 named[3073]: client 116.48.39.92#61358: update 'example.com/IN <http://example.com/IN>' denied ns4 named[3073]: client 1.22.246.108#55201: update 'example.com/IN <http://example.com/IN>' denied ns4 named[3073]: client 1.22.246.108#62801: update 'example.com/IN <http://example.com/IN>' denied ns4 named[3073]: client 1.22.246.108#51446: update 'example.com/IN <http://example.com/IN>' denied ns4 named[3073]: client 1.22.246.108#51446: update 'example.com/IN <http://example.com/IN>' denied ns4 named[3073]: client 1.22.246.108#51446: update 'example.com/IN <http://example.com/IN>' denied ns4 named[3073]: client 220.226.190.130#24055: update 'example.com/IN <http://example.com/IN>' denied ns4 named[3073]: client 116.48.39.92#64924: updating zone 'example.com/IN <http://example.com/IN>': update failed: 'RRset exists (value dependent)' prerequisite not satisfied (NXRRSET) ns4 named[3073]: client 116.48.39.92#60524: update 'example.com/IN <http://example.com/IN>' denied ns4 named[3073]: client 116.48.39.92#51572: updating zone 'example.com/IN <http://example.com/IN>': update failed: 'RRset exists (value dependent)' prerequisite not satisfied (NXRRSET) ns4 named[3073]: client 116.48.39.92#53227: update 'example.com/IN <http://example.com/IN>' denied ns4 named[3073]: client 202.134.152.150#1050: update 'example.com/IN <http://example.com/IN>' denied ns4 named[3073]: client 202.134.152.150#1082: updating zone 'example.com/IN <http://example.com/IN>': update failed: 'RRset exists (value dependent)' prerequisite not satisfi ed (NXRRSET) ns4 named[3073]: client 202.134.152.150#1085: update 'example.com/IN <http://example.com/IN>' denied ns4 named[3073]: client 116.48.39.92#54887: updating zone 'example.com/IN <http://example.com/IN>': update failed: 'RRset exists (value dependent)' prerequisite not satisfied (NXRRSET) ns4 named[3073]: client 116.48.39.92#64927: update 'example.com/IN <http://example.com/IN>' denied Above are the logs, & it's flooded with those error messages . /\ Tarak ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Subdomain Issue
On Wed, Nov 9, 2011 at 3:15 PM, Matus UHLAR - fantomas wrote: > Now I have only one question: > > > On 08.11.11 20:27, trm asn wrote: > >> The moment I have done the "rndc reload example.com", the domain and all >> subdomain were became not resolvable. >> > > what does the named's log say? > > -- > Is there any thing wrong if I declare my zone like this as below... $TTL 300 @ IN SOA ns4.example.com. postmaster.example.com. ( 200806 ; Serial Number 10800 ; Refresh after 3 hours 3600; Retry after 1 hour 604800 ; Expire after 1 week 300 ) ; Minimum TTL of 1 day ; Name servers IN NS ns4.example.com. IN NS ns2.example.com. IN NS ns1.example.com. *testINNSns1973.hostgator.com. testINNSns1974.hostgator.com.* INA203.39.45.19 INMXmail.goole.com. wwwINCNAMEexample.com. aINA203.39.45.20 bINA203.39.45.21 * /\ *Tarak* * ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Subdomain Issue
Dear List, Please help me out to investigate the below scenario . I have one domain "example.com" $TTL 300 @ IN SOA ns4.example.com. postmaster.example.com. ( 200806 ; Serial Number 10800 ; Refresh after 3 hours 3600; Retry after 1 hour 604800 ; Expire after 1 week 300 ) ; Minimum TTL of 1 day ; Name servers IN NS ns4.example.com. IN NS ns2.example.com. IN NS ns1.example.com. INA203.39.45.19 INMXmail.goole.com. wwwINCNAMEexample.com. aINA203.39.45.20 bINA203.39.45.21 *testINNSns1973.hostgator.com. testINNSns1974.hostgator.com.* named-checkzone example.com named.example.com.forward < No Error The moment I have done the "rndc reload example.com", the domain and all subdomain were became not resolvable. After commenting out below entries & rndc reload , all back to normal. *;testINNSns1973.hostgator.com. ;testINNSns1974.hostgator.com.* Please help me out on this issue. /\ Tarak ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
