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?
There's this domain, that is apparently a cname of a cname which is, I know, not recommended, but it's not forbidden by the rfc. The domain is [URL]. If I try with windows or bind dns I get this results in nslookup:
** server can't find [URL]: NXDOMAIN
but if I try with opendns I have some results.
> [URL]
Server:208.67.222.222
Address:208.67.222.222#53
Non-authoritative answer:
www.groenegordel.becanonical name = www.vlaamsbrabant.be.
www.vlaamsbrabant.becanonical name = waf.vlaamsbrabant.be.
Name:waf.vlaamsbrabant.be
Address: 193.53.37.42
With this I see it's a [URL] it's a cname or a cname. Is there a way to force bind to resolve this domain? Is this a limitation of bind?
I'm trying to create a cname in system-config-bind. I can create the record but when I go to save it I get a "Zone file save error".
Here's the full output:
Save of Zone file var/named/chroot/var/named/plantsareperfect.com.db failed
dns_master_load_/var/named/chroot/var/named/plantsareperfect.com.db:10lantsareperfect.com:cname and other data (sorry, the rest is off the page and I cant see it)
Why I can't save this cname?
I need to know how to configure the address of the next level DNS server in my BIND server. im in a FEDORA 10 system.
View 3 Replies View RelatedI 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]....
Is there a way to show print all zones and associated records in BIND?
View 1 Replies View RelatedI 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?
This is my example domain name
loc1.test.com --> 10.8.5.5
loc2.test.com --> 10.8.5.6
con1.test.com --> 10.8.5.7
mail.test.com --> con1.test.com
mk.test.com --> loc1.test.com,loc2.test.com
per1.test.com --> mk.test.com
per2.test.com --> mk.test.com
per3.test.com --> mk.test.com
per4.test.com --> mk.test.com
We have configured DNS Zone like this .....
How to configure CNAME for
mk.test.com --> loc2.test.com
and
per1.test.com --> mk.test.com
per2.test.com --> mk.test.com
per3.test.com --> mk.test.com
per4.test.com --> mk.test.com
Need configuring CNAME for mk.test.com,per1.test.com,per2.test.com,per3.test.com and per4.test.com
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]
View 1 Replies View RelatedI 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]....
The little home server of mine has bind configured as a caching dns server. I would like to configure it to resolve local host names. I know dnsmasq can do this, so what would someone need to do to get bind to do this?The network is entirely private with all private IPs which are distributed by dhcpd.(While writing this, the feeling creeps in that it would be easier to just have dnsmasq running.)
View 2 Replies View RelatedI have problem that I am unable to install the bind* and cach* pakages for configuring DNS.I am using RHEL 5.4. I have tried using both yum & rpm, but still the same. The error is listed below (when i execute the command:#yum install bind* cach* -y): warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY,key ID 37017186 Public key for caching-nameserver-9.3.6-4.P1.e15.i386.rpm is not installed.
View 1 Replies View RelatedI'm running Ubuntu Server 10.04 to provide DHCP and Internet Sharing on my home LAN. In a previous configuration, I was running Fedora + AMAHI to provide the same services. As most of my linux devices are Ubuntu, I decided to decommission and rebuild my server. I've been able to configure all of my services with the exception of one. As a rule, I assign static IP or reservations based on MAC address's for any of my network devices or appliances.
One cool feature that AMAHI provided a GUI for, was the ability to recognize devices by name as well as IP. i.e.. "http://192.168.1.50" or "http://home-NAS" Going from memory, the long name upon first entry may actually have been "http://home-NAS.adomainname.com"? From my reading, I think I either need to setup up a Static Alias or CNAME for each assigned IP. I can't find any tutorial's that will walk me through this process. I'm guessing I need to generate the records under one of the master DNS zones, but that is just a guess?
what is bind vs bind-chroot vs caching-nameserver ?what is the different between eatch others ?
View 7 Replies View Related1.How create a Zone file
2.Named.conf file conf...
3.Dig check is not working......
I am wanting assistance with getting Zoneminder working under ubuntu 11.04.I have ran the install and setup the settings via http://ipaddress/zmadded the camera re instructions.I cannot view anything via Zone Minder.Cam is a Logitech Pro 5000
View 13 Replies View RelatedThe thing is, I've created a new local zone here (called "local.lan"), and, aparently, it is working fine, and DHCP3-SERVER is updating DNS info through the controls.But sometimes I get some strange answers from the server, like when I do the "arp" command in one of the clients, and get the server's hostname "mixed" with it's own reverse, like this: "dns.local.lan.2.168. | ether | 00:02:1e:f5:61:74 | C | eth0". Other thing is that sometimes my DNS don't update when a computer "enters" the lan. In the /var/log/syslog the DHCPOFFER appears, but the information about the DNS update isn't there.So, I would like to show you my named.conf file and my local zone db file, and get some feedback from you (what would you change... what is wrong...).
# ------------------- #
* named.conf:
# ------------------- #
[code]....
how to configure reverse zone for x.x.x.x/18 subnet ,all the example on the internet are for /24 or /16 subnets?
View 9 Replies View RelatedI am no expert when it comes to BIND. I seem to be able to resolve NS and A and TXT records for my domain, but I cannot get the MX records to come out. Does anyone have an idea what might be wrong with my BIND zone file? I wonder if it might have something to do with the fact that my IP is currently on a policy Block List?
Code:
I want to compare zone file counting and same name, not records etc of master and slave dns server so that i sure both server contains same copy of the files at a time. Any utility to compare such files in linux?
View 5 Replies View RelatedThis is the entry which iam seeing in my /var/log/messages. code...
because of the issue now i cant able to write the zone file, via my application. automatically..is it possible to resolve this issue!
I need to script to change TTL of all zone file in my DNS and aslo i require the serial to be updated to reduce my work load.
View 2 Replies View RelatedI 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
I have a server which time zone is in GMT format. I have a user which is also get time zone variable in GMT. But I want to run script which will start from crontab in EST time zone. For that I�m not suppose to give extra entry in crontab. May be it would be in script.
How can I achieve this?
I chose -Server-, if this is more appropriate in -Networking-, just let me know. Basically, I need to be able to merge responses stored in a zone file with responses from an "upstream" authoritative server. I'm in the sad position of needing to "intercept" requests to *part* of a domain (but not restricted to a sub-domain!) and return results for *some* hosts that use an internally routed address, and results for the rest using the public internet addresses. Unfortunately, it's not my domain, so I can't just use views (although I suspect they could end up having some part to play in this, at least potentially)... but instead I have to actually send requests recursing to the other site's external DNS for any hosts my server doesn't have records for in the zone file.
Some background on the situation:
I work at a local government, which has a private link / VPN connection to a state government entity, and needs to use internal addresses for some of the state servers, which then get routed over an "internal" network link. But the state uses the same domain name internally and externally, just presenting views to internal clients vs. external clients. -- However, we are only being allowed access to certain of their servers through the internal link, which means that for any other servers that we don't have internal/private access for, we have to visit the public addresses just like anyone else on the internet... So, I can't just send all requests to their internal DNS and get responses, because we'd get IPs for some servers (e.g. their main web site) that we wouldn't then be able to reach using the internal network link.
For Example: Say I have a client machine, "client1", on my network ("my.net"), which uses "mydns1.my.net" for name resolution ... and which needs to access 2 servers on the state network, "private.st.us" and "public.st.us" -- so named based on how "my.net" needs to access them.
The external state DNS server/view ("ext-dns.st.us") responds to requests with something like:
private.st.us -- 1.2.3.456
public.st.us -- 1.2.3.457
(Those are just crap addresses, obviously.
The internal state DNS server/view ("int-dns.st.us") responds to requests with something like:
private.st.us -- 10.0.0.8
public.st.us -- 10.0.0.10
This works on their network because their own clients have access to all such IPs.
But for us, they only allow traffic flowing between "my.net" and their internal network to reach the 10.0.0.8 address, blocking all other address destinations. So, when "client1.my.net" asks "mydns1.my.net" for the address of "public.st.us", I need "mydns1" to recurse out to "ext-dns.st.us" to get an answer (1.2.3.457) and then return that IP to "client1" -- because "my.net" is blocked from accessing the server's 10.0.0.10 address. But, when client1 asks mydns1 for "private.st.us" I need to pull the IP (10.0.0.8) from a local zone file instead of asking either of the state DNS servers -- or optionally forward the request to "int-dns.st.us" I suppose -- because the state blocks access to certain services (which we need and are the whole cause of this problem!) via the public (1.2.3.456) address.
We have a 10.0.0.x network with a working DNS Server (BIND) setup. Recently we purchased Watchguard firewall and configured three networks, so that our internal network can be divided into three networks and talk to each other through firewall routing. So I configured three ips 192.168.0.1,172.16.0.1 and 10.0.0.1 for local network card in the firewall router. I separated three networks and individually configured machines with static ip and given gateway as the above ips. Now, I need to configure DNS server for each zone in the same server which is in the network 10.0.0.x, is this possible?. If yes do I need to setup ip aliases for eth0 in the DNS server with different ips from each network?
View 1 Replies View RelatedI'm having this problem that's driving me nuts.Basically I've set up 2 virtual DNS servers.1. Master on fictive domain "domain.xx". 2.ster of fictive domain "sub.domain.xx"NS 1 delegated sub. zone-space to the DNS 2.Everything works except for reverse lookup on sub-domain.For instance. 172.16.0.101 should resolve to my fictive mail.sub.domain.xxIf I try to resolve it with 'host 172.16.0.101' from domain.xx I get:Host 101.0.16.172.in-addr.arpa not found: 2(SERVFAIL)If I do the same from the actual sub.domain.xx I get:Host 101.0.16.172.in-addr.arpa. not found: 3(NXDOMAIN).
If I, on the other hand, try to resolve a hostname both from domain.xx or sub.domain.xx with 'host mail.sub.domain.xx' I get the proper address as the answer: 172.16.0.101I've delegated the in-addr.arpa space to sub.domain.xx dns-server according to RFC 2317 specification, at least I think...Please note this is a virtual network address 172.16.0.0/24Here are the excerpts of the in-arpa-files on both domain.xx and the sub.domain.xx server.
Code:
$TTL 12h
$ORIGIN 0.16.172.IN-ADDR.ARPA.
[code]...
Here's a little tool that does this:
Without arguments, updates the SOA serial in a zonefile to the current date. If the date was already updated, just updates the revision number (incrementing up to 99, and then again 01). Uses RFC 1912* recommended format.
With $1 == <two digit number>, auto updates (if necessary) just the date part and uses your provided revision number.
With $1 == <eight digit number>, uses that as a date (no validation of any kind), and just auto update the revision number
With $1 == <full serial>, will just replace whatever the serial is with the provided serial, without any validation
* YYYYMMDDRR (4-digit year, 2-digit month, 2-digit day of month, 2-digit revision number)
This script + keeping SOA/NS/MX/CNAME RRs in a common file $included from other files with $ORIGIN and A/PTR/TXT RRs, made everything way easier to manage, enabling me to script some zone switchers, automatic failover/redirection of DNS on WAN changes, etc, etc. I think this stuff might be cool to integrate with something like this script and make nice CLI toolset for bind. Looking forward to implement it.
Code in pastebin
Code:
#!/bin/bash
# globals
script_name="${0##*/}"
script_dir=$(readlink -f "${0%/*}")
script_version=1 .....
I have configured master and slave Bind servers. Everything works fine. But whenever I add a new zone entry at master server it is not getting updated at slave server in logs I see this error:
client 192.168.1.1#43428: view external: received notify for zone 'yourdomainname.com': not authoritative
At master server I do not see any error or warning message. This error clearly indicates that named.conf file does not have zone entry in it or domain name is wrong. While checking the named.conf file I see that the zone entry has not been updated at slave server. If I update it manually and reload named on slave then zone files (db files) are getting created without any issue and any modification at master server for the zone records are also getting updated. My concern is why zone record is not getting appended at slave server in named.conf file.
Is there anything I am missing in the configuration. I am pasting the steps which I have followed to configure my master and slave server:
Configure Bind as master and slave server
Install Bind on your server
yum install bind
OR
sudu apt-get install bind9
Generate RNDC Key using the command
rndc-confgen -a -k rndc-key
it will stored in /etc/rndc-key file
Master Server IP 192.168.0.1
Slave Server IP 192.168.1.1
Master Server Configuration
options .....
I just ordered a new unmanagd VPS I have already Apache, PHP and Mysql the only problem I have now is how to create a A,NS and MX record in CentOS. I dont know where the DNS zone file is in CentoS
View 2 Replies View Related
