Software :: Zone Transfers For Load-balanced BIND Servers?
May 13, 2010
I am planning to implement hardware load-balanced DNS servers. There will be one master and three slaves in the server farm. I will have two virtual servers associated with the server farm that will be listed as external nameservers for our domain.
BIND uses the list of NS records to determine the servers that need zone transfers. The zone NS records will not be the addresses of any of the real servers. How do I tell the master to do zone transfers to the real slave servers?
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Jun 29, 2011
Im used to Win Server so Im not very familiar with ubuntu server, I want to setup a load balanced service I have three server , one as a load balancer and the other two as my web servers, now my questions is that what are the steps I need to do to setup my cluster, I dont mean the requirements, not the actual detailed configuration.
Im gonna have my Mail server on these servers, how am I gonna setup the mail server to work with the load balancer, I mean is it possible to load balance the mail server like web server on ubuntu?
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Mar 11, 2011
how to setup an Active/Active Load Balanced and High Available (If one of the nodes is down the system still runs) MySQL cluster. I have found quite a few howto's but I have some things unclear in my mind. I found a few solutions like this one: [URL] or this: [URK] Those are using two or four MySQL nodes, two Load Balancers to avoid a single point of failure but only one MySQL cluster management server. What happens if the MySQL cluster management fails?
I have also found a "MySQL Master-Master Circular Replication" technique but from what I read, with this option there is a chance that conflicts will arise if node A and node B both insert an auto-incrementing key on the same table.
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Feb 6, 2011
Is there a way to show print all zones and associated records in BIND?
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Dec 9, 2010
It's possible to configure a second level zone like this:
IN CNAME www.domain2.ext
For example, if I want:
host domain1.ext -> CNAME of www.domain2.ext?
and NOT only www.domain1.ext -> CNAME of www.domain2.ext?
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May 12, 2010
After installing Bind DNS and configuring our zone, we got the following error message when clicking on "Apply Zone": NDC command failed : rndc: connect failed: 127.0.0.1#953: connection refused [/U]
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Apr 30, 2011
I have a problem with the configuration of the NS zone. Looked through the logs, and there:
Apr 28 21:20:19 szewczyk named[18340]: /etc/bind/db.domain.pl:1: no current owner name
Apr 28 21:20:19 szewczyk named[18340]: zone domain.pl/IN: loading from master file /etc/bind/db.domena.pl failed: no owner
[code]....
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Oct 12, 2009
I am using RHEL5. These are my config files:
Code:
options {
listen-on port 53 { 127.0.0.1; 192.168.14.54; };
listen-on-v6 port 53 { ::1; };
directory "/var/named";
[code]....
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Mar 21, 2010
I have a DNS server with 3 zonesone is dynamic with an associated reverse and one is static
Everything was fine until I added a single host in the staticzone then the server stopped resolving names in that zoneThe only way I could get it to work again was delete the whole zone and re enter the zone and hosts
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Nov 1, 2010
1. When I'm not logged into the server, only the shares are visible on my Windows computer. Clicking on the share folder displays an error message. As soon as I log in at the server, the files within the shares become accessible on the Windows box.
2. File transfers between the machines are extremely slow. Watching the system monitor, there's a brief burst of network activity followed by 10-30 seconds of nothing...on a gigabit network, the effective transfer rate is ~120kbs. There's no other network activity going on that would account for this behavior.
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Apr 28, 2011
I have an existing bind setup, which serves a local DNS zone: merlin.local.
I would like to setup a subzone, below merlin.local, (preferably ad.merlin.local) to be used by an M$ AD domain, and thus M$ DNS servers. I would like to then be able to lookup addresses in both of the zones mentioned from any machine on my network.
I thought that this would be as simple as creating a zone delegation in bind, however when I have done this, and setup an M$ domain using ad.merlin.local as it's DNS name. Whilst this hasn't presented me with any errors, as such, I have been unable to come up with a setup which allows me to lookup addresses in both the merlin.local domain and the ad.merlin domain. To be perfectly honest, I'm not sure what configuration I need to perform to allow this to happen, I stupidly assumed it would just work!
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Jan 10, 2010
I successfully configured my local DNS server. I have server1.mydomain.com, pc1.mydomain.com and so on ..
The problem is that my website is hosted on an external server (not on the local network), so www.mydomain.com is not found in the configured zone/subnet
How can I tweak my DNS to fetch ALL subdomains from the gateway (just as it went before the DNS existed)?
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Aug 11, 2010
I am trying to get bind 9 up and running on a new installation of server 10.04 and keep getting errors when starting the daemon -
* /etc/bind/named.conf.local:19: unknown option 'zone'
* /etc/bind/named.conf.local:20: unknown option 'zone'
* /etc/bind/named.conf.default-zones:3: unknown option 'zone'
* /etc/bind/named.conf.default-zones:11: unknown option 'zone'
* /etc/bind/named.conf.default-zones:16: unknown option 'zone'
* /etc/bind/named.conf.default-zones:21: unknown option 'zone'
* /etc/bind/named.conf.default-zones:26: unknown option 'zone'
The onlything I could find after scrubbing the internet is once ina while there's a missing bracket. But I have checked and triple checked my config files and the syntax and can't find anything wrong. I have another installation of bind9 running on Fedora and the same exact syntax works just fine.
[Code]....
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Apr 1, 2011
I'm at a loss to why my reverse lookup zone doesn't work for me.I've got two views. One internal and one external. My domain is isp2.datornatverk.se. Public IP: 130.240.133.81.
dig -x @8.8.8.8 130.240.133.81
gives me:
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 2917
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
I've set it up so that the internal subnets gets the domains resolved to the internal IP-addresses. When querying from external addresses I will get public IP.My named.conf.local file:
Code:
acl internals {
127.0.0.0/8;[code]..........
I don't know whether the views has messed something up. It worked before I added the views.
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Aug 12, 2009
I'm trying to get BIND running on one of our Fedora 10 servers, since we've had some issues with the DNS from our service provider. This BIND server is not authoritative for any domain, it's merely for caching purposes. I used the sample DNS file at [URL].., and modified it slightly with our internal IP addresses.
I'm getting the following errors when I do service named start:
Error in named configuration:
zone localhost/IN: loading from master file master.localhost failed: file not found
_default/localhost/in: file not found
zone 0.0.127.in-addr.arpa/IN: loading from master file localhost.rev failed: file not found
_default/0.0.127.in-addr.arpa/in: file not found
I also tried changing the line directory "/var/named"; To the /var/named/chroot/var/named directory with the same result.
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May 10, 2011
I was wondering if anyone knows how to make a zone file for bind dns server that points "example.com" and all (by all i mean any) sub-domains to this 127.0.0.1 address. and i wanted to set up a virtual host in apache to use /var/www/eample/index.php for 'example.com' and all of its sub-domains.
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Sep 10, 2010
I need to setup 2 BIND servers where I would need to configure automatic fail over where if one of the DNS server goes down other one should be able to pick it up.I was thinking to deploy VRRP solution with keepalived or vrrpd
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Sep 22, 2009
I am working on fedora 10 and configured dns on my college lan which already has it's dns at 192.168.5.20 .So i configured my private dns server at 192.168.101.91 which is my ip too.And the domain name is the host name of my system for example server.onkie.com.MY dns port 53 is shown when i do nmap localhost but but doesnt show when i do nmap 192.168.101.91 .Also when tested my server on other computers on my lan with there primary dns as 192.168.5.20 and secondary as 192.168.101.91 they cant access my site at my system with the name [URL].. . nmap localhost
Starting Nmap 5.00 ( http://nmap.org ) at 2009-09-22 21:24 IST
Interesting ports on onkar (127.0.0.1):
Not shown: 993 closed ports
PORT STATE SERVICE
22/tcp open ssh
53/tcp open domain ----the dns is running
[Code]...
I already disabled my selinux and iptables ..but then also it's not accessible in Lan .
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Mar 18, 2010
Have basic LAMP setup on 9.10 box. I want to have a publicly accessible website AND I want to have phpmyadmin available. The only thing is I would rather not have the phpmyadmin interface available on the internet. I usually open a ssh port forwarded tunnel when I need to use phpmyadmin on this server. I want to add a directive to make phpmyadmin bind only on localhost. I have found the phpmyadmin config file in /etc/apache2/conf.d
phpmyadmin.conf -> ../../phpmyadmin/apache.conf
I have tried adding some LISTEN directives, but apache does not like my directives-- I am obviously not doing it right. I have looked for a bit on the internet and can't find out how to disable external access to a configured site in Apache.
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Jul 15, 2010
I have searched some about Bind9 and have it installed in my server. Now I'm looking for a Tools like mysqlBind and I found unxsBind is the next version of mysqlBind (These tools help you config BIND DNS with MySQL). But the issue is: I don't know how to Install it in Ubuntu - there just say how to install with Centos.
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Nov 13, 2010
bind9 is taking a lot of the RAM
process info:
ID Owner Size Command
17559 root 290396 kB /usr/sbin/named -c /etc/bind/named.conf
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Jun 19, 2011
I need a bind-server (I mean DNS server) with a SQL backend. As far as I have seen, the only viable option I have is to recompile bind9 with support for either MySQL or PostGre.
Link to this: [URL]with an additional
Code:
apt-get install libpqxx3-dev
From some tutorials I have read, I see I need to recompile it to enable its SQL support.
But when I do it that way, I won't get any security updates, won't I?
So... Is there any bind server with SQL support in the repositories ? For that I don't have to worry about security updates...
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Jul 31, 2011
Has anyone else had trouble with Fedora 14s system-config-bind GUI for named. When I try to save my configuration, there is always an error something like.... "Zone has no adresses either A or AAAA"
Seems system-config-bind is broken is Fedora 14.
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Jun 9, 2010
I'm thinking about installing a DNS server on Fedora 13 running bind. I looked around for available bind packages and found only these:
Now the first one contains bind utils the second one is for running DNS in a chroot env and the last one is a bind with some DB backend.
Does this mean that fedora 13 doesn't support/.provide "standard" bind server (I mean the one to run without chroot/without db backend) ? Or am I missing anything in my repolist which is :
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May 14, 2011
anyone come across a mysql driver for Bind that is already in RPM format? I know there is one that you can compile, but i was just curious if anyone knew of a MAINTAINED package that does that same thing?
==Edit== While i'm at it, does anyone know of a way to have bind call a STORED PROCEDURE, instead of directly querying a table? That'd be sweet. --Or, even having bind query a php file, or a webhost, would be good... I'm going to google that one now....
==Edit== Screw the mysql driver: [URL]
how to use php to serve dns requests...
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Jan 10, 2011
I'm having an issue with a BIND server. After a restart, (or randomly, I assume whenever a cache expires,) when I try to resolve any domain I get a "Host yahoo.com not found: 2(SERVFAIL)" Eventually it starts working and works fine till the cache expires again;
[Code]...
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Jan 21, 2011
I have 2 nameservers setup, a master and a slave. when I first setup the slave, I restarted bind9 and all of the zone records propagated just fine. Today, I updated one of the records on the master (no problems), but when I restarted bind9 on the slave it gave me a FAILED message. I checked the log and it was trying to receive notify's from my gateway address (192.168.10.1), and got "Failed to update from non-master". I did some research and found several people having a similar problem, but their slaves were trying to update from their own IP, not from the gateway IP. I tried their solution (allow-notify { 192.168.10.1; }) but all that did was allow the slave to restart bind without errors, it still doesn't update the records. It says "zone is up to date" but it's not.
IP's are:
Gateway 192.168.10.1
Master 192.168.10.200
Slave 192.168.10.201
All of my zone records have the masters statement set to 192.168.10.200 I don't know how it even came up with the gateway address
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Feb 13, 2011
However I just built a 10.10 server, installed webmin, vmware, and the server is working perfectly. I configured my bind 9 server using the latest webmin and on the server everything resolves perfectly to both the internet and lan. I have it set to 127.0.0.1, the server ip address is 10.1.50.25. However, it will not accept dns client queries in which they cannot resolve to the lan or internet. I have the dhcp giving out the dns server 10.1.50.25. NSLOOKUPS from the client show query refused. I know there has to be some setting or config that will allow clients to query but I am not able to locate it, and I am not totally knowledgeable of named.conf and been all through the webmin module and configuration settings.
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Jul 8, 2009
I'm having a problem getting BIND to start after doing the FC10->FC11 upgrade. Others have been reporting some bad symbolic links, but this isn't that problem. I've searched the forums here, but I don't see anything like this anywhere.
Here's what I see:
Code:
[root@atomu etc]# /etc/init.d/named start
Starting named: [FAILED]
So, no error message. Logs read as follows:
Code:
Jul 8 00:38:00 atomu named[2414]: starting BIND 9.6.1-RedHat-9.6.1-2.fc11 -u named
Jul 8 00:38:00 atomu named[2414]: built with '--build=x86_64-redhat-linux-gnu' '--host=x86_64-redhat-linux-gnu' '--target=x86_64-redhat-linux-gnu' '--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc'
[code]....
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Aug 10, 2009
When DNS server is configured on Windows server, it will automatically detect and catch computer names and IP address. With Linux (BIND), I have to enter each clients manual under zone file. example (computer1 IN A 10.10.1.4). is there anyway to make Linux detect client automatically as windows does?
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