Red Hat / Fedora :: BIND-slow Queries Results ?

Mar 8, 2010

I have installed BIND 9.6.1-P3-RedHat-9.6.1-16.P3.fc12 on Fedora Core 12.

I found out that when i perform i DNS lookup to a some record that is not in the DNS cache or zones(means...recursive) it takes about 4 sec to give the IP results.

I dig a little bit on the internet and found out that it is a known issue but all places says that it is fixed on newer version of BIND (after version 9.3)

I tried:

1. start BIND with -4 argument ( named -4) - the server started but no changes on the delay.

2. disable IPV6 on the server - i tried the articles on the web but still i get IPV6 address.

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Server :: BIND 9.5 On Fedora Core 9 Not Resolving Dns Queries

Apr 21, 2010

I have this ISP grade Nameserver running on BIND 9.5 on Fedora Core 9 64 Bit.

Its been pretty working well for sometime until a last week when we noticed it stopped resolving for our clients using on our service.

It gives correct authouritative answers for our own ISP domain with the A, PTR and MX intact but does not return resolving queries back to clients.

Below are my files

This is the message from /var/log/messages

The 41.223.x.x and 41.215.x.x ip address are from our ISP subnet and so are our own clients being denied.

The box is also hosting our traffic graph server which is on a LAMP but listens on another IP/ethernet card.

So far the load on the server is minimal as is a Dell R200 rack server.

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Fedora Servers :: MySQL Queries Running Extraordinarily Slow On 15?

Jun 5, 2011

i'm not sure if this is because i'm having problems with my Raid setup, which mysql is running on, or if it is unrelated, but is anyone else noticing that mysql is VERY slow on Fedora 15?

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Server :: BIND Refuses Queries ?

Feb 15, 2010

I am currently running the latest version of Bind, and for some completely unknown reason I can NOT get queries to work for PTR records. All queries to the servers for reverse name lookup get query denied:

Using domain server:
Name: 66.150.173.1
Address: 66.150.173.1#53
Aliases:

Host 27.173.150.66.in-addr.arpa not found: 5(REFUSED)

And it shows in my logs:

I am at my wits ends with the piece of crap. Can anyone shine some light on why this damn Bind install won't respond to these queries?

For reference here is my named.conf:

Code:

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Ubuntu Servers :: 10.10 - Bind 9 Not Accepting DNS Client Queries

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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Software :: Caching-only Name Server To Forward Queries-Bind

Feb 14, 2011

I can configure a caching-only name server fine, but how do I make it forward DNS queries too?

I'm thinking I could add the below to the options stanza in the /etc/named.conf file:

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CentOS 5 Networking :: Bind Server Not Responding To Client Queries

Mar 4, 2011

I am bit new to Linux and have setup caching-only name server with Centos 5.5. when i do dig server, it provide resolutions. but when i use the server IP as DNS on my windows client, it says, "connection refused" on the NSlookup output. (IP table didn't enable) My server Ip is 192.168.1.253 and bellow is the configuration of "/var/named/chroot/etc/named.conf"

options {
listen-on port 53 { 127.0.0.1; 192.168.1.253; };
listen-on-v6 port 53 { ::1; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt"; .....

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Fedora Networking :: DNS Queries - Connect To A Ssh Server ?

Aug 28, 2011

How often are dns queries sent? Assume I want to connect to a ssh server, will I send one dns-query in order to do that or do I send multiple during my connection? What if I request web-pages, do I send a query only when I enter a site or will I send queries every time I visit a new page on that site?

I'm asking since I'm considering getting an account at dyn.com (the standard account for $30/yr) and it comes with 600 000 queries per month (which is way more than I expect to get but knowing exactly what it means is always good).

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Red Hat / Fedora :: Does Centos Cache DNS Queries By Default

Feb 27, 2011

I try to forward all the network traffic on specific port from my VPS to home PC.The problem is that I have dynamic IP at home so I've installed Dynamic Update Client (DUC) from no-ip.com.I also use 'redir' software on Centos VPS to redirect the traffic and everything works fine till my ISP change the IP of my home PC.Does Centos cache DNS queries by default (nscd is not running)?Is there a some way/software that will periodically check if the IP of particular domain has changed and update accordingly.

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Networking :: Creating Domain Name In Bind Exposing Bind To Internal Network

Sep 3, 2009

I am configuring bind9 on fedora 9(sulphur).I have configured /etc/named.conf and created zone file in /var/named/I have started the service but when I am executing the command nslookup mydomain.com it is not able to resolve the name.Another problem I am facing when I do telnet localhost 53,I am able to connect.but when I do telnet myip 53 it does not connect.Seems to be a firewall problem but I ve disabled iptables selinux completely even I ve disabled dnsmasq but still not working.

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Server :: What Is Bind Vs Bind-chroot Vs Caching-nameserver?

Jul 8, 2011

what is bind vs bind-chroot vs caching-nameserver ?what is the different between eatch others ?

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General :: Saving The Results Of The Time Command While Discarding The Results Of The Command Being Timed

Apr 6, 2010

I'm timing how long it takes to run a command foo. I'm looking to append the results from the time command to a file, and discard the results from the foo command. I tried the following, but it didn't do what I want:

$ time ./foo > /dev/null >> output_from_time_command.txt

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Fedora :: Yum Update Results In Python IndexError?

Jun 17, 2010

I haven't been able to update my system as of late, because yum keeps giving me the same error, everytime I try to run updates/install packages.

Code:
Running Transaction
Traceback (most recent call last):
File "/usr/bin/yum", line 29, in <module>
yummain.user_main(sys.argv[1:], exit_code=True)

[Code]....

Running it with -v did not provide any other information regarding this problem. I tried running yum -clean all as well as package-cleanup --dupes and other various forms and rpm -Va --nodeps --nofiledigest but didn't get any output.

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Networking :: Copying /var/named Files From Fedora 7 To Fedora 11 Does Not Configure Bind?

Aug 12, 2009

host A: Fedora 7 has bind 9.4.2
host B: Fedora 11 has bind 9.6.1

I want to migrate my bind configuration from A to B I've read the release notes and man pages and I can't see why copying

/etc/named*
and
/var/named/*

I checked /etc/sysconfig/named too... Seems to have no effect on my brand new install on Fedora 11. Host B stays basically un-configured.

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Fedora :: NVidia Driver Results In Nowhere ( Black Screen )?

Sep 23, 2009

NVidia FX5200: nvidia-glx-173xxx The problem is that, when I install it, upon rebooting, I get a black screen with one blinking underscore at the top left corner. I somehow managed to get into the console and .. there's something wrong with the video card driver ( no way I could catch it into a picture ).

This was the exact reason why my Fedora CD was laying on the corner for months - I remember having this issue earlier as well.

Is there a way to fix it or at least, recover from a broken video card driver ?

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Fedora :: Screensaver/power Management Results In Logout?

Dec 22, 2010

I have searched for a solution to this issue (it's difficult to come up with a minimum number of search terms) and have found at least one person reporting it, but the solution is "check the xorg logfile" - which is entirely too vague, since I don't know what I'm looking for in the file. Here's the issue: The screensaver and/or power management appears to initiate a logout when I try to awaken the computer, whether the screensaver is still functioning or the screen has been turned off. Wither way, I jiggle the mouse, and it appears there is a crash (black screen with spinning mouse circle) resulting in a new login screen, which is entirely disruptive if I have software running, such as recording an audio stream with Audacity.

I'm using KDE with an OpenGL screensaver (antinspect) set to engage after 10 minutes. As for power settings, I am "letting powerdevil manage screen power saving." On the screen tab I have checked "Dim display when idle for more than [10] minutes." I have enabled display power management - standby after 20 minutes and power off after 30 minutes. (There are way too many options under KDE now, and I don't find an explanation of what the various "Profile Management" options do and what the tabs for "Actions" and "CPU and System" do differently from the "Screen" tab. I have an ATI 4650 video adapter. I'm not using a proprietary driver, since I've not been able to determine that there is one that will work with Fedora 14 (or any other Fedora, for that matter). The machine is a recent AMD (dual core 6000+) with 4Gb of memory.

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Fedora :: Fortran Program Gives Different Results Between F15 I686 And X86_64

Sep 2, 2011

I am having a problem with a simple program I wrote in Fortran (gfortran). This program basically reads a long list of numbers and makes some operations with them. Double precision is used in the variables and functions, and AFAIK everything is in order with the program. The thing is that I accidentally noticed that said program yields different results, and I am talking about integers being different, something noticeable. Apparently the offending chunk of code might be:

Code:

DOUBLE PRECISION FUNCTION tamano (x1,y1,z1)
DOUBLE PRECISION x1,y1,z1
tamano=dsqrt((x1)**2+(y1)**2+(z1)**2)

[code]....

One of the involved machines has F15 x86_64 and the other one F15 i686. My first guess is that this has something to do with how Fortran handles precision (which I supposed was the same for 32 and 64 bits). To compile the program I use:

Code:

gfortran --free-form -fno-whole-file program.f90

Is there another option I should pass the compiler to make sure the same precision is used in both cases? Or what can I do here?

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Fedora Servers :: User Directory Apache Results In 403 Errors?

Mar 14, 2009

I want to enable User Directories in Apache. So in httpd.conf I set:

Code:
<IfModule mod_userdir.c>
#UserDir enabled // commented out
UserDir public_html
</IfModule>
Directory /home/kees is listed has the following file permissions: drwx--x--x 32 kees kees
Directory /home/kees/public_html has the following file permissions: drwxr-xr-x 2 root root

Directory public_html has two files: index.html and index.php, both with file permissions: -rwxr-xr-x 1 root root If I now try to open http://myhost/~kees/index.html (or index.php) in my browser I get a 403 Forbidden error. If I look in my error log I see the following messages if I first try to open the index.html and then the index.php file:

[Code]...

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Fedora :: Rpmfusion Nvidia Driver Results In Unusable Display?

Feb 14, 2010

I would prefer to be able to use the rpmfusion nvidia driver instead of the closed driver but when I try it, KDE4 runs fine for a while but then the whole display starts blinking and the cpu % goes to 99% for XMy PC is Fedora 12 x86_64, the video card is a XFX 8800GT[URL]1) installed the kmod-nvidia-190.53-1.fc12.1.x86_64 and dependencies2) blocked nouveau with rdblacklist=nouveau in grub.conf, 3) Ran: setsebool -P allow_execstack on4) fixed the xorg.conf (I had to move my old xorg.conf out of the way and merged my DontZap option back in)
5) rebootedI did not yum remove the nouveau driver,.... didn't seem necessary.My desktop will run for a while but inevitably starts flashing uncontrollably. I can't even ssh to it to run init 3 to kill X (I can ssh to it but for some reason I can't su to root to kill X).

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Fedora Networking :: Weird Results: Mounting The Home Directory?

Jun 4, 2010

i am getting weird results after mounting the /home directory from the server. seems like the client sees the ldapuser and it's directory from the server side.. /home/ldapuser. but it's pulling the "blank" user as it's permission. blank is the actual user on the client side. any ideas why?

server side:
[root@localhost ~]# showmount -e
Export list for localhost.localdomain:

[code]...

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CentOS 5 :: Ntp Queries But Also Fails

Mar 16, 2009

All our CentOS servers sync to a windows domain time server and we're migrating to a new CentOS time server. however in testing the setup with the clients I get the following

# ntpdate 10.10.31.211
16 Mar 09:20:46 ntpdate[2646]: no server suitable for synchronization found

checking to see if I can at least query...

# ntpdate -q 10.10.31.211
server 10.10.31.211, stratum 16, offset 17579.121921, delay 0.02591
16 Mar 09:08:07 ntpdate[2606]: no server suitable for synchronization found

so it queried the server and also failed.

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Fedora :: Get BIND Running On One Of Our F10 Servers?

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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Fedora :: Make A Dns Server Using Bind 9.5.1 In 10?

Jan 8, 2010

I want to make a dns server using bind 9.5.1 in fedora 10 but i 've got this following error when nslookup.

Quote:

nslookup admindevice1.fmipa
Server: 127.0.0.1
Address: 127.0.0.1#53
** server can't find admindevice1.fmipa.dns.fmipa: SERVFAIL

this is my named.conf

Quote:

//
// named.conf
//
// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS

[code].....

but when i start bind and try my dns i got a wrong ip for both ns and admindevice1.

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Ubuntu :: Running SQL Queries Through Java?

Jun 20, 2010

I would like some help to run sql queries in Ubuntu. For a school IT project, we must write a Java program that runs queries. Seeing that I'm going away on holiday and will be away from my Win7 desktop, I will have to work on my Ubuntu laptop. When I run my program, I get these two sql exceptions:

Code:

sun.jdbc.odbc.JdbcOdbcDriver
No suitable driver found for jdbc:odbc:ITPAT2010

Note: it is not my program that is causing the problem, since it works fine on Win7. But here's my code anyway:

Code:

void OpenDB()
{
System.out.println("INTO BRIDGE");
String url = "jdbc:odbc:ITPAT2010"; //JOU BRUG SE NAAM

[code]....

I believe the drivers that handles the connection to the database aren't installed. The format of my database is: *.accdb (was created on Win7 using Office 2010). I can't open this file, probably because I have no database programs installed?

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Jul 5, 2011

I would like configure a DNS server on Debian, only to forward through my ISP DNS servers.

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General :: Queries Regarding Partition Size

Mar 6, 2010

i want to know about the partition size of linux in my system..i have pentium 4 with 512 mb ram and 15 gb hard disk for opensuse 11.1..i want to know how much space should be allocated for /,/home ,swap etc and under what kind of partition they should be formatted (like primary,logical,extended etc)...kindly help me in this regards...I have windows xp and want to install opensuse with it.

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Server :: Named Not Responding To Queries

Feb 23, 2010

My DNS server used to work flawlessly but for some reason it no longer responds to queries. It seems that named always queries internet root serves!!

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Server :: Stop All Outbound DNS Queries?

Nov 7, 2010

I have internal-only email server that has internal BIND9 running. Thought it only has its IP address defined in /etc/resolv.conf, it is still resolving outside addresses.

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Fedora :: Private BInd DNS Server Not Accessible To Other?

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 server.onkie.com . nmap localhost

[Code]...

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Fedora Servers :: BInd DNS Server Not Accessible To Other?

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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