Hostname Does Not Resolve To Any IP

Oct 31, 2009

I hope your day is going good. I've been trying to fix a problem I had all week. I receive daily email notification that "example.[url]" does not resolve to any IP. However, when in WHM, it already contains Server Main Ip: I've tried a few solutions from the web, but to no avail:

IMPORTANT: Do not ignore this email.
The hostname ( resolves to . It should resolve to Please be sure to correct /etc/hosts as well as the 'A' entry in zone file for the domain.

Some are all of these problems can be caused by
/etc/resolv.conf being setup incorrectly. Please check this file if you
believe everything else is correct.

You may be able to automaticly correct this problem by using the
'Add an A entry for your hostname' under 'Dns Functions'
in your Web Host Manager

1) Within WHM, I have the following:

-Add an A entry for your hostname (I only have one listed)
Server Main Ip:

-Primary/secondary nameserver
Primary Nameserver: (A entry =
Secondary Nameserver: (A entry =

-Resolver Configuration
Primary Resolver:
Secondary Resolver:

-Additional IP my webhost gave me to use: (used in primary name server) (used in secondary name server)

-Current DNS Zone listing: (my website URL that is currently working) (hostname I made myself that contains the server main IP) (A entry = (A entry =

2) My edit "edit /etc/resolv.conf" contains the following:
Search localdomain

Issue: I receive daily email notification that "" does not resolve to any IP. However, when in WHM, it already contains Server Main Ip:

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DNS :: The Hostname ( Resolves To . It Should Resolve To

Jun 24, 2008

5 hours back I got fails of services mails and then I restart VPS but after few minuts services status up but sites not working.

I contact with support and they told me "Service Named is down on your server".

Any how they update Cpanel, during updation I got email that with subject


[ipcheck] Problems with dns setup on

The hostname ( resolves to . It should resolve to

Support added entries for me, but sites still not up. They again updating CPANEL. Seems they unable to solve problem.

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Servage :: The Cache Was Not Able To Resolve The Hostname Presented In The URL

Apr 16, 2008

The error message is

The requested URL could not be retrieved

While trying to retrieve the URL:


The following error was encountered: Unable to determine IP address from host name for The dnsserver returned: Server Failure: The name server was unable to process this query. This means that:

The cache was not able to resolve the hostname presented in the URL.

Check if the address is correct.

Your cache administrator is webmaster.

Generated Wed, 16 Apr 2008 13:13:49 GMT by (squid/2.6.STABLE19)

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Aug 7, 2008

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Aug 28, 2008

I am new to the dedicated servers. I have just upgraded myself to a dedicated machine.

I am getting error "couldnt resolve host" at every domain name when I type like


I searched over internet and found some people telling that I should put nameserver to /etc/resolv.conf?

nameserver <ip here>
nameserver <ip here>

I dont know what IP to put here or if it is a solution to my problem.

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DNS :: Domains Will Not Resolve

Aug 5, 2009

I've been having this problem for a while now. I have a dedicated linix server running with the cpanel. I've setup my own nameservers and for the most part it all runs without a problem. However, every now and then the domains will not resolve for many people.

This may only last a few minutes but it happens regularly. There doesn't seem to be any pattern. The server is still available via IP address. Also, any domain name set as a nameserver with the registrar is not affected by this problem. All other domains are affected. This problem has persisted over many cpanel updates.

I have gone through all the nameserver files (I can think of or have read about) looking for something that may be causing this but everything looks normal.

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May 12, 2007

I have nameservers setup on my server. As I have changed my servers, I need to resolve the sites. I changed the nameservers Ips to resolve to new one: and

But my sites and my clients sites are going down.


And similar report by dnsreport is being given saying that NS didnt responded timely.

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Nov 4, 2009

I have installed WHM 11 on centos 5.3.

Currently I get problems that domains at certain places not open.

Like e.g I write my server IP XXX.XXX.XXX.XXX it works fine and I get ping reply also, but at the same time I write [url]it would not resolve.

Similarly in web browser I write server IP it gives cpanel page but on same computer I write [url]I get page cannot be opened, when I refresh the page at certain times then it would open. Now once it is opened in the same computer it would work fine here.

In some internet connections it works fine i.e no problems, in some connections get similar problems that domains does not resolve properly.

I checked my named service works fine.

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Apr 20, 2009

I've got several subdomains on the server, but I recently created a subdomain (the same way as before) and it doesn't resolve

The dig command run through shell works. DNS records seem to be setup. I restarted the DNS and even the http server.

What gives? (it was a WHM setup via whmcs)

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Jun 2, 2008

how do i speed up dns resolving my website. It is taking much time about 5-8 seconds. My site is

usually when i type and like other websites, those sites load much faster than anything. Is this dns or any other issue>

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Domains Never Resolve, Probably Named

Sep 13, 2007

the DNS Server never resolves, i create one account on my server, i put the nameservers... about 6 Hours ago and nothing, i setup the Domain DNS and nothing, what can be? how i can fix this?

I have a Dedicated Server (Xeon 2.8 | 1 GB Ram)

OS: Fedora 6

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Apr 16, 2008

I can't resolve hosted domains on ssh or via php on my server. All of other domains fine when i dig or ping but mine is not.

I did run fix scripts for dns and restarted named but result is still same.

Also, when i try to reach one of my domains via php's fsockopen function, i get "65 No route to host" or "68 Too many users" error.

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PHP Bug- PHP Can't Resolve Domains, Server Can

Jul 23, 2007

My VPS was a clean build 2 weeks ago and so far i have installed cpanel and configured everything and added accounts. I began that one of my scripts that uses gethostbyaddr($ip) was failing to resolve any of the ip's it received. I made another PHP file to test this, with this code:

PHP Code:

 <?phpecho file_get_contents[url];?>

Resulting in:

Warning: file_get_contents() [function.file-get-contents]: php_network_getaddresses: getaddrinfo failed: Name or service not known

The thing is, the VPS is resolving domains just fine

I can ping, send emails, even dig:

[root@server etc]# dig

; <<>> DiG 9.2.4 <<>>
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34548
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 4, ADDITIONAL: 4

; IN A

;; ANSWER SECTION: 300 IN A 300 IN A 300 IN A

;; AUTHORITY SECTION: 343652 IN NS 343652 IN NS 343652 IN NS 343652 IN NS

;; ADDITIONAL SECTION: 343143 IN A 343143 IN A 343143 IN A 343143 IN A

;; Query time: 62 msec
;; WHEN: Tue Jul 24 04:49:35 2007
;; MSG SIZE rcvd: 212

I have no clue what's up, and i think there must be a guru here that has an idea of what is going on?

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Sep 26, 2007

Yesterday we registerd and created 2 domains in our server.
Everything is ok, files uploaded, dns zones created, httpd virtual host created...

The problem is that trying to browse the site trough redirects me to [url] my main server IP address, this page shows a cPanel Welcome message.

But, using [url], the site is loaded ok, withouth any problems.

DNS zone shows:

; cPanel 11.11.0-BETA_16977
; Zone file for
$TTL 14400
@ 86400 IN SOA (
2007092601 ; serial, todays date+todays
86400 ; refresh, seconds
7200 ; retry, seconds
3600000 ; expire, seconds
86400 ) ; minimum, seconds 86400 IN NS 86400 IN NS IN A IP_ADDRESS IN A IN MX 0

Apache virtual host code

<VirtualHost IP_ADDRESS>
DocumentRoot /home/siteuser/public_html

<IfModule mod_suphp.c>
suPHP_UserGroup siteuser siteuser
<IfModule mod_php4.c>
php_admin_value open_basedir "/home/siteuser:/usr/lib/php:/usr/local/lib/php:/tmp"
<IfModule mod_php5.c>
php_admin_value open_basedir "/home/siteuser:/usr/lib/php:/usr/local/lib/php:/tmp"

User siteuser
Group siteuser
BytesLog /usr/local/apache/domlogs/
CustomLog /usr/local/apache/domlogs/ combined
Options -ExecCGI -Includes

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Apr 20, 2007

I set up a domain in plesk 8 (LAMP), but the www version of the domain doesn't resolve via the browser, wheras the non-www version does. I set the nameservers (and glue records) yesterday.

Why might this be? Could this be due to dns propagation?

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like this pic [url] is that danger? and how can i resolve it?

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Jul 11, 2007

I have come accross an issue with DNS in cpanel 11.x , where named.conf is badly configured by cpanel ,

Here is how a DNS report from would look because of this :

FAILS for SOA record
Fails for lame nameservers .

Here's how to fix it ,

SSH to server ,

Backup your named.conf file by

cp /etc/named.conf named.conf.back

pico /etc/named.conf


include "/etc/rndc.key";

controls {
inet allow { localhost; } keys { "rndc-key"; };

/* make named use port 53 for the source of all queries, to allow
* firewalls to block all ports except 53:
query-source port 53;

// Put files that named is allowed to write in the data/ directory:
directory "/var/named"; // the default
dump-file "data/cache_dump.db";
statistics-file "data/named_stats.txt";
memstatistics-file "data/named_mem_stats.txt";

/* If you want to enable debugging, eg. using the 'rndc trace' command,
* named will try to write the '' file in the $directory (/var/named).
* By default, SELinux policy does not allow named to modify the /var/named directory,
* so put the default debug log file in data/ :
channel default_debug {
file "data/";
severity dynamic;

// All BIND 9 zones are in a "view", which allow different zones to be served
// to different types of client addresses, and for options to be set for groups
// of zones.
// By default, if named.conf contains no "view" clauses, all zones are in the
// "default" view, which matches all clients.
// If named.conf contains any "view" clause, then all zones MUST be in a view;
// so it is recommended to start off using views to avoid having to restructure
// your configuration files in the future.

view "localhost_resolver"
/* This view sets up named to be a localhost resolver ( caching only nameserver ).
* If all you want is a caching-only nameserver, then you need only define this view:
match-clients { localhost; };
match-destinations { localhost; };
recursion yes;

zone "." IN {
type hint;
file "/var/named/";

/* these are zones that contain definitions for all the localhost
* names and addresses, as recommended in RFC1912 - these names should
* ONLY be served to localhost clients:
include "/var/named/named.rfc1912.zones";

view "internal"
/* This view will contain zones you want to serve only to "internal" clients
that connect via your directly attached LAN interfaces - "localnets" .
match-clients { localnets; };
match-destinations { localnets; };
recursion yes;

zone "." IN {
type hint;
file "/var/named/";

// include "/var/named/named.rfc1912.zones";
// you should not serve your rfc1912 names to non-localhost clients.

// These are your "authoritative" internal zones, and would probably
// also be included in the "localhost_resolver" view above :

view "external"
/* This view will contain zones you want to serve only to "external" clients
* that have addresses that are not on your directly attached LAN interface subnets:
match-clients { !localnets; !localhost; };
match-destinations { !localnets; !localhost; };

recursion no;
// you'd probably want to deny recursion to external clients, so you don't
// end up providing free DNS service to all takers

// all views must contain the root hints zone:
zone "." IN {
type hint;
file "/var/named/";

// These are your "authoritative" external zones, and would probably
// contain entries for just your web and mail servers:

// BEGIN external zone entries

include "/etc/rndc.key";

controls {
inet allow { localhost; } keys { "rndc-key"; };
And then goto bottom of the file and remove

}; at the bottom .

Save file and exit

then test config
service named configtest
if you have done this correctly , it should display something like this:

zone loaded serial 2007070901
zone loaded serial 2007070906
zone loaded serial 2007070901
zone loaded serial 2007071001
zone loaded serial 2007071001

Then restart named by

service named restart

your DNS should be working now .

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[root@cp ~]# wget =>`ossec-hids-2.0.tar.gz'
Resolving failed: Temporary failure in name resolution.

it hangs on the "Resolving bit for a long time.

my resolv.conf file is as follows:



which are the 2 nameservers of my datacenter.

I tried doing a /scripts/upcp --force and I get this:


[root@cp ~]# /scripts/upcp --force
Updating /scripts...
Sync Source:

and it just hangs there

the sites I am hosting use PHP script that make a lot of outbound web connections so this is crippling my server

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Jul 13, 2015

Apply an IP fix to a specific domain but this domain dont resolve on browser [URL] .....

On chrome i got this : ERR_NETWORK_ACCESS_DENIED

I already disable iptabes and denyhosts

I check on dnsstuff and everything seems good.

I check ifcfg-eth0 file - ok

IP its add into Plesk panel by ToolSetings -ok

Its set on domain by Hosting parameters -ok

Reverse on IP is ok ....

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Mask IP address subnet Retailer Sites Interface (shared) eth0 0187
2001: xxxx: x: xxxx :: 1 (dedicated) 64 0 0 eth0

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Nov 5, 2008

I got a new server from uk2, has whm but i just couldnt get the server to work, i changed hostname and made nameservers etc but couldnt get it to work i pointed ips to hostnames and everything no response, domain is and i havent used cpanel for 2 years now and i used to have alot of experience in it before these days i just stick to directadmin and other control panels.

I just need to ask a few questions and i need help too to get my server up and running as im losing alot of time and money here

i remembered when i changed hostname on whm i need to run this through ssh:
So i did, and this was the result:


login as:'s password:
Last login: Sat Nov 1 01:39:07 2008 from
root@server1 [~]# /usr/local/cpanel/cpkeyclt
Updating Internal cPanel Information........................................quer y failed: query timed out
[]: No working dig found!
Unable to establish connection. License server hostnames could not be resolve to IPs.
root@server1 [~]#

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ScriptLog: UdpServerUplink: Failed to resolve master server address, aborting.

im running through a router.

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I have a fresh server running CentOS 6 (final). I am trying to install Plesk 11.5.30 but i am experiencing some problems. When i run the plesk-installer i get this message:

Your host name must resolve to the correct IP address of your server, unless you are using network address translation (NAT).

Please quit Parallels Installer, fix the host name resolution problem, and then try installing again.

You can skip the hostname check and continue the installation, however, in such a case, the installer cannot guarantee successful installation.

Now, in my /etc/hosts file i have this: localhost localhost.localdomain localhost4 localhost4.localdomain4
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Is this correct? Or do i need to add/change something else?

My server is in the clound.

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But I now get this come up 30 times when I start the firewall:

hostname: Unknown host

Some guides talk about setting a hostname but I dont have a domain name just an IP Address.

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Jul 17, 2008

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#grep 'exit signal Bus' error_log

[Wed Jul 16 21:18:45 2008] [notice] child pid 19433 exit signal Bus error (7)
[Wed Jul 16 22:12:56 2008] [notice] child pid 22194 exit signal Bus error (7)
[Wed Jul 16 23:08:53 2008] [notice] child pid 31096 exit signal Bus error (7)
[Wed Jul 16 23:30:29 2008] [notice] child pid 1139 exit signal Bus error (7)
[Thu Jul 17 00:09:58 2008] [notice] child pid 3336 exit signal Bus error (7)
[Thu Jul 17 00:28:03 2008] [notice] child pid 6256 exit signal Bus error (7)
[Thu Jul 17 00:53:55 2008] [notice] child pid 7459 exit signal Bus error (7)

Memory and Hardware test passed (DC people checked). Reload RHEL4 OS with 64 bit.

Server Details:
CPU : Intel(R) Xeon(R) CPU X3210 @ 2.13GHz (4 CPU)
CPU MHz: 2133.413

RAM : 4 GB
Apache : 2.0 (Previously tested with 2.2.9)
PHP : 5.2.5
MySQL : 5.0.1 (Running separate box)

Current Apache Settings:

KeepAlive On
MaxKeepAliveRequests 0
KeepAliveTimeout 5
UseCanonicalName Off
<IfModule prefork.c>
StartServers 5
MinSpareServers 5
MaxSpareServers 10
ServerLimit 2000
MaxClients 2000
MaxRequestsPerChild 0

Previous Apache Settings:
(Tried with below apache settings on that time also the signal bus error created )

Apache 2.2.9 with eAccelerator compailed.

KeepAlive Off
MaxKeepAliveRequests 50
KeepAliveTimeout 10
UseCanonicalName Off
<IfModule prefork.c>
StartServers 16
MinSpareServers 8
MaxSpareServers 64
ServerLimit 500
MaxClients 500
MaxRequestsPerChild 10000

Compiled in modules:

Apache Server compiled with....
-D APACHE_MPM_DIR="server/mpm/prefork"
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D HTTPD_ROOT="/usr/local/apache"
-D SUEXEC_BIN="/usr/local/apache/bin/suexec"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_LOCKFILE="logs/accept.lock"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="conf/mime.types"
-D SERVER_CONFIG_FILE="conf/httpd.conf"

Running single website with drupal based flash arcade website. Per day 2500 visitors and 150 users online normally.

I am almost 3 weeks to resolve this issue.

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Apr 5, 2009

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2. The nameservers I use are something like and which I registered it already on my domain registrar.

3. is use on other Dedicated server

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