CentOS 5 Networking :: Bind9 Not Starting After Changing Config

Oct 15, 2009

I am running centos 5.3 with the latest bind, i have made some changes in the config and now it wont start.

Fel i named-konfigurationen:/etc/named.conf:27: unexpected end of input (last line)
My named.conf looks like this:
options { directory "/var/named/";
view "externt" {
match-clients { any; };
recursion no;
zone "dala.hk" {
type master;
file "dala.hk";
zone "" {
type master;
file "";
view "intern" {
match-clients {;};
zone "intern" {
type master;
file "intern;

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CentOS 5 Networking :: System-config-authentication Is Not Starting?

Sep 6, 2010

I trying to set up a LDAP server using openLDAP / db4. The server runs fine but I cannot get the client to work. Client and server are on the same machine, as for now. The problem seems to be in PAM. However I cannot start the system-config-authentication tool which should do the trick.

CentOS release 5.4 (Final)


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CentOS 5 Networking :: Masters And Slave Bind9

Oct 26, 2009

Im trying to set up a slave dns to my master, but the problem is that only one of the views is being transferd.

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CentOS 5 Networking :: Bind9 Failed To Start?

Jun 29, 2010

I have installed CentOS 5.5 final on VM ware 7.0 workstation.... and I was trying to install and configure bind9.. it installed alright but it refused to start because named.conf is not in the /etc/ directory. I have copied the template for /usr/share/doc/named/* to (/etc/ and /var/named/) the appropriate directory but it still fails but on it does not gives me any error message. Oh... least I forgot I was trying to configure it as a cache only server for now.

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Ubuntu Servers :: Bind9 Not Starting On Boot

Mar 2, 2011

Since I have not gotten anything on the "General Help" I am posting this here: When a Ubuntu 10.10 I have starts up apache2, MySQL and postfix start properly but bind9 doesn't. Once booted is I run 'sudo /etc/init.d/bind9 start' it starts. The only thing odd on this system is I have a "inet6 v4tunnel" interface defined in my /etc/network/interfaces. From booting in the syslog there is:


/var/log/syslog:Feb 28 19:02:42 ubuntu named[1029]: starting BIND 9.7.1-P2 -u bind -d 9
/var/log/syslog:Feb 28 19:02:42 ubuntu named[1029]: built with '--prefix=/usr' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--sysconfdir=/etc/bind'


Even with the bind debug level at set at 90 I do not get any more in the logs that what I posted before. The lack of errors in the logs is giving me no idea where to start. I commented out the IPv6 tunnel interface and rebooted and still no help. bind still is not starting at boot. OK, it is not a permissions issue, I have changed the config and zone files to be owned by bind:bind, root:bind, root:root and bind:root and it has made no difference. Doing a fresh install on a Virtual Box VM and configure it in a similar manner bind9 starts normally. (I am almost to the point where I will rebuild the box)

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CentOS 5 Networking :: Bind9 In Chroot Environment Failed To Start?

Mar 19, 2011

system: centos 5.5 Kernel 2.6.18-194.el5 freshly installed. bind is configured in chroot environment out of the box. placed named.conf in /var/named/chroot/etc and my zone files in /var/named/chroot/var/named.


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Server :: Bind9 Config Files: Leading Whitespace Requirements?

Apr 19, 2011

Is leading whitespace significant in bind9 config files? This reverse lookup file (/var/chroot/bind9/etc/bind/zones/rev.168.168.192.in-addr.arpa) did not work; /var/log/messages had "zone 168.168.192.in-addr.arpa/IN: has no NS records".Inserting 3 spaces before IN in the NS line fixed it:


; IP Address-to-Host DNS Pointers for the subnet
@ IN SOA CW8vDS.localdomain. hostmaster.localdomain. (
2011041901 ; serial
8H ; refresh


Reading the man pages and netsearching, I did not find anything about indentation requirements except for "This is usually indented for readability, but the indents are required syntactically" here.Although the above file works, named-checkconf reports an error in it:


root@CW8vDS:/var/chroot/bind9/etc/bind/zones# named-checkconf rev.168.168.192.in-addr.arpa
rev.168.168.192.in-addr.arpa:1: syntax error near ';'

but named initialisation does not log any errors or warnings in /var/log/messages when processing this file except "/etc/bind/zones/rev.168.168.192.in-addr.arpa:2: no TTL specified; using SOA MINTTL instead".

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CentOS 5 Networking :: Config Proxy Client Side For CentOS 5

Oct 4, 2010

I've tried to read many of the topics in this forum first and tried to find a solution to my problem, but can't find one.I'm testing CentOS 5.5, it's the first time I'm using a CentOS Linux release.I'm trying to configure the proxy "client side " on it and cannot find how to do it.On other Linux release I've used the ENV variable like "http_proxy" or "HTTP_PROXY" etc etc.This time, I don't know why but it doesn't work.I've put the name and @ip of the proxy in /etc/hosts and tried different version upper/lowercase of "http_proxy" "HTTP_proxy" "ftp_pr.." but it doesn't work.If I configure manually Firefox and puting the name or @ip of the proxy we have on our network, it works.But if I try to use ENV variable it doesn't work...

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CentOS 5 :: Svn Server Config - Understanding Location Svnpath Parameter On Svn Config

Sep 7, 2009

I was tryin to deploy svn on centos 5 with respect to [URL] I am stuck understandin the location svnpath parameter on svn config


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CentOS 5 Networking :: Dnsmasq Not Starting Correctly?

Nov 2, 2009

Since latest large update to CentOS 5.3, which also upgraded to 5.4, I have problem with dnsmasq. CentOS is real server on real hardware (not virtual). I use dnsmasq as dhcp server as usual. On hardware startup or reboot, these lines are included in /var/log/messages

Nov 2 19:06:16 server avahi-daemon[2965]: New relevant interface eth0.IPv4 for mDNS.
Nov 2 19:06:16 server avahi-daemon[2965]: Joining mDNS multicast group on interface eth0.IPv4 with address


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CentOS 5 Networking :: DNSMasq Update Looking For Config File

May 26, 2010

I did a yum update this morning that included a dnsmasq update. Subsequently, for an unrelated reason, I restarted dnsmasq, but it failed because /etc/dnsmasq.d didn't exist. It looks like my /etc/dnsmasq.conf file now includes "conf-dir=/etc/dnsmasq.d" at the end. Since dnsmasq was starting and I didn't remove dnsmasq.d, I assume this line was added by the update. Commenting the line resolves the issue.

An alternative hypothesis, given that I don't really know what the state of /etc/dnsmasq.conf and /etc/dnsmasq.d/ was before the update, might be that the directory did exist, but was removed by the update. I find this the least likely of my 2 stated hypotheses. (There are other hypotheses, but I think they are even less likely). Am I correct is concluding the conf-dir line was added by the update? If so, shouldn't the updated RPM create the directory during install?

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Dec 31, 2010

I have a SSH box which is command line only and no X, this will be used remote and i'm trying to get the wireless network configured to start at boot. I'm using wpa_supplicant as the access point is secure with WPA2 At present if I send the following commands the machine will connect to the wifi and be reachable via ssh

ifup wlan0
/usr/sbin/wpa_supplicant -c /etc/wpa_supplicant/wpa_supplicant.conf -D wext -dd -i wlan0 -B
dhclient wlan0

This does not start at boot but requires manual input of the above commands. I've just come to a complete blank on geting this to start at boot time. Also I would like to set a fixed IP for this box.

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CentOS 5 Networking :: NIC Card And Config Won't Come Up In The Ifcfg-eth0 File?

Mar 18, 2009

I've been racking my brains over the past few days trying to figure out why my NIC card (network interface card) won't show up in the ifcfg-eth0 file.When I configure a new server (like this one) I always go to:/etc/sysconfig/network-scripts/ifcfg-eth0 and from there I usally see the name of my NIC's manufacturer's name and the hardware MAC address.Then it's only a simple process of entering the server's IP address, netmask and gateway and I'm up and running in no time...But not in this case! the ifcfg-eth0 file is completely blank! There's not ONE single line of config info in it... (?)The server runs an Intel core 2 duo (dual-core) CPU with 1 gig of RAM.

I've even re-formatted the drive and re-installed Centos 5.1 on the darn thing 3 times and it simply won't work.The server cannot resolve when I do a wgetIt also gives me a 'resolution problem in the named configuration'.What I don't understand is that the 2 small LEDs on the Cat 5 cable lights up and flash at what appear to be regular intervals here.

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CentOS 5 Networking :: Diffrent Nic Config Setting Showing When Doing Ifconfig?

Jul 7, 2010

i have encounter strange situation i have set all my network configuration via /etc/sysconfig/network-scripts/ifcfg-eth0 ,eth0.2 ,eth1 etc ....i have used only once Gnome network manage settings to add routing since then all my network config change although all files mention above showing the same config i have set initially and same for Gnome network Manager.

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CentOS 5 Server :: Cannot Get Bind9 Internal View Served To Connecting Vpn Client.

Sep 25, 2010

I have a white slate centos 5.5 installation on a virtual box at Media Temple (one of their new VE servers). I am trying to create a development environment where I can have Bind9 serve up one set of zone files to me and other developers on the internal network and another set of zone files to external requests (ie... using the views feature). I would like to be able to develop for sites for which the dns is not yet pointed at my server. The network is created by having the VE server be an OpenVPN server, and connecting my client box to the server (my mac - / my ve server

I have the connections working fine, I have also been able to route all network traffic from my mac through the vpn to the server. For some reason, I cannot get the DNS server on the ve server to serve me an internal view zone file. When my vpn is on, I cannot ping or navigate to any web pages from my mac. I think this is because my ve server is not setup as a dhcp server and the ip tables are not setup to allow all internal requests to use the server to go get web pages.

I cannot view-ping anything else from my mac/client when on the vpn, I can successfully ping any website my ve is authoritative for. This tells me that my ping is obviously going over the vpn, and thus an internal request, but the external zone file is still served up. The following is my named config.

acl "lan_hosts" {;;


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Nov 7, 2009

I am trying to change the configuration of sendmail so that I can relay mail through google smtp server as suggested here.

First I ran 'm4 sendmail,mc > sendmail.cf' with the original .mc file that came with Fedora 10. There was no error.

I added the following lines.


FEATURE(`authinfo','hash /etc/mail/auth/client-info.db')dnl
define(`RELAY_MAILER_ARGS�, `TCP $h 587′)
define(`ESMTP_MAILER_ARGS�, `TCP $h 587′)

I ran ''m4 sendmail,mc > sendmail.cf' again and got this message:

m4:/usr/share/sendmail-cf/mailer/procmail.m4:33: ERROR: end of file in argument list

I did not change anything in the procmail.m4 file. What do you think caused this error?

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CentOS 5 Networking :: Network Script - Changing Hosts File?

Aug 4, 2009

I need a script but i am not good at programming soWhat script have to do:- Every 1 minute is checking if ip address is available (ping)- if ip answers nothing happens- if ip does not answers: * file /etc/hosts is changed by one stored in /home/user/hosts* notification by xterm to restart some programIf finally ip answers file /etc/hosts is changed by one stored in /home/user2/hosts

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CentOS 5 Networking :: Reinstall Network Driver After Changing Motherboard?

Jan 17, 2010

I have a newly installed CentOS 5.4 on Gigabyte G31M-ES2C, I had to change the motherboard since it has some problems. Unfortunately the new motherboard is a rev 2.x board, which has a different onboard NIC (old one is RTL 8102E, new one is AR8132), so now my ethernet connection doesn't work anymore (no eth0 device), I assume I need to install a new driver for the AR8132? If so, what's the steps to do so?lspci shows Ethernet controller as: Attansic Technology Corp. Atheros AR8132 / L1c Gigabit Ethernet Adapter (rev c0)

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Mar 1, 2011

I'm looking if it is possible to change the whole Linux install without having to boot up using a live-cd.
The purpose is to remotely log on to a machine using SSH or other to replace the complete installation, without loosing network setup so I don't loose contact with it. Perhaps loading the live-cd while linux is already running?

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Networking :: Bind9 : Reverse Lookup And PTR Value?

Oct 23, 2009

I have the following bind9 configuration, and I'm trying to resolve reverse lookup IP address to name.

$ttl 38400
mydomain.org.INSOAmyhosting.com. (


** server can't find NXDOMAIN

Is my PTR wrong, or what do I need to have the reverse lookup working ?

Note: I replace real IP by, same for my domain name.

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Networking :: How To Test If Bind9 Really Working

Dec 15, 2010

Set up a server with Bind, Dovecote, Apache etc. Registered a domain and made all the necessary things for it to work. The server can send/receive mail on my domain, but when I try to look up the site I have it returns a lookup failure. I know Apache is working as I can browse the site when I used my ip address but I can't when I use the domain name. Anyone got a few tricks I could try to dumb down and find the possible failures I did when setting this up?

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Jul 22, 2011

I am trying to write a bash script that installs a program fully automated for me. I am stuck at the one part where i need to change a line in one config file. I have tried various syntax for sed and none have worked. Maybe someone can suggest how to go about this. Since the line appears in the middle of the file, I can't use echo or cat. Also the file will be diffrent lengths depending on the install.

The line I need changed is:

I need that changed to:

the last syntax i tried is:

Yes this is for PNP4Nagios on centos 5.6 64bit. If i can get this figured out. I will be willing to post the whole thing for others to use. it will be used to install PNP after a working nagios install is done.

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Jan 6, 2010

I have Ubuntu 9.10 PC on my home network acting as a VPN gateway. It is using vpnc & iptables to provide access to the remote network - other computers on my local network have routing rules in place to go via the Ubuntu gateway if trying to reach an IP on the remote network. This works just fine, except DNS lookups for names on the remote network don't work.

I'm trying to solve this by using Bind9 on the gateway, so it can act as DNS for the local network. I don't want to create excess VPN traffic or load on the remote DNS, so I want the gateway to forward the lookup to my ISPs DNS first and if the name is not found then try the remote network DNS. Is this possible, or is there another (better) way around this? The Bind9 configs seem to admit multiple DNSs, but use them in a failover sense - only using secondary DNSs when the first one in the list is not reachable at all.

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Networking :: BIND9 Fails With Specific Setup

Apr 3, 2010

when i try to set up bind9 to resolve the top level of the name it cant do it. for current sake of arguement i have 4 servers on the network diana.undernets.lan jen.undernets.lan amanda.undernets.lan alex.undernets.lan

those are the IP addresses of the servers and their respective hostnames
so if i send a request for anything to just undernets.lan it will fail because there is no record for that. so i added this to the bottom of the zone record

IN CNAME amanda

thinking that a blank would refer to the top of the zone

here is my named.conf.local which is called in my named.conf

zone "undernets.lan" {
type master;
file "/etc/bind/undernets.db";
zone "0.168.192.in-addr.arpa" {


i want to be able to lookup undernets.lan and it give me the IP address of amanda.undernets.lan

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Sep 5, 2010

I'm trying to configure bind9 to block porn by having it pretend to be authoritative for a list of porn domains. It can then return a "fake" IP for the port sites, which points to a page on my server. So far, the only way I have found to do in this in bind requires a separate zone for each porn domain. This doesn't work because of memory problems - I have 1000's of porn domains to block.

I'd like to instead have bind forward queries to rbldnsd, which can take a list of domains in a "data set" file, and use it to return a single A record (pointing to my "access denied" page). However, I think this will not work because I would still need a separate "zone" for each porn domain name.

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Oct 3, 2010

Here's my current setup:Ubuntu 10.04

When I go to run it via this command:

I get the following error message:


This is my /etc/bind/named.conf.options file:


I've looked at various solutions already:

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Dec 10, 2010

I want to setup bind9 so that IPs from one range will use the Google DNS Servers and IPs from another range will work from Opens DNS but am unable to get it working here are my configs.anyone that can help me please?

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Networking :: Windows Client Can't Use Ubuntu Bind9 DNS Service / Fix It?

Dec 3, 2008

I have setup ubuntu server and right now i'm trying to get my DNS server working for my intranet.

I'm using my ubuntu as gateway wo internet and somehow my windows client can't use my DNS service.
when i do nslookup www.google.com from my server ( it return me answer code...

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Ubuntu :: 10.4: Networking - Using Bind9 And Dhcp3 - Properly Configure Static Wired Connection?

Jun 15, 2010

v10.4 {I have completely re-edited this thread because I have started over fresh. I am no longer using bind9, but now using the installation-defaults nameserver and dhcp and trying to get a handle on how things ought to be setup properly. My previous attempts was a disaster.}

Coming fresh out of a newly installed 10.4, I obviously was able to get network connectivity but then I ran into trouble the minute that I tried to change eth0/eth1 connections via network-manager's applet. What I found was, that when I attempted to define static connections, all bets were off. It seems that once one attempts to change eth0/eth1 which are wired devices, I was no longer able to recover my network connectivity!

I was however able to setup a wireless connection, so in this way I was able to get back network (and Internet) connectivity, and write this thread on this forum. I notice also, that there is no longer 'Networks' in the System->Administration menus! Geez, what the hell is going on? how to properly configure my static wired connection? Networks in 10.4 have really changed alot!

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Apr 10, 2009

I tried to run system-config-kickstart when after full installed CentOS 5.3,it report error as following,does anyone face the same problem?

[root@localhost ~]# system-config-kickstart
Loaded plugins: fastestmirror, kernel-module, priorities, protectbase,
: versionlock


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