Networking :: Installed Dnsmasq To Speed Up Dns Querry For My Network
Dec 20, 2010
I installed dnsmasq to speed up dns querry for my network. i didn't really change any thing in my dnsmasq.conf file. i only just put my upstream dns addresses in resolv.conf. i have dchp running and configured to issue the ip address of the system running dnsmasq as dns ip to the dhcp clients. But i have noticed that if i do ipconfig /all on my windows clients, instead of the dnsmasq server ip showing, i still see the dns ip of my upstream provider. by this, iam assuming that the client are not using the cache even though the service is running on the server.
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Mar 17, 2010
I'm sharing the wireless signal (wlan0) on my fedora 12 machine.However, when the computer starts up I have to execute:> service dnsmasq stopOnly after this, will the computer share the internet signal (through eth0).Why is that? Should I uninstall dnsmasq?I've already removed it from chkconfig:> chkconfig --del dnsmasq
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Jan 1, 2010
how to change the IP range provided by default by Network Manager / dnsmasq from 10.42.43.-- to something else?
I have setup a working network using a Bell wireless modem (Canada) and Network Manager in 8.10, 9.04, and 9.10.to do Internet connection sharing. In 8.10 the only way I could get it to work was with WICD and KPPP, many hours spent on this one. I got it to work in 9.04 and 9.10 using network manager, but certainly not out-of-the-box. If someone would like some tips on how I did it, in each case, let me know.
My current challenge is trying to set the dhcp range of dnsmasq (which I am 99% sure is what is handing out addresses) from th 10.42.43.-- address range to a 192.168.0.-- range.
I HAVE edited /etc/dnsmasq.conf and can get the edits to this file to break the setup (dnsmasq will not start) but have not been able to get it to change the IP address range.
It seems that either this file is ignored, or overridden by some other process. I have looked at the very good post at [URL] about dnsmasq but this does not do the trick.
By the way, the way I can get this to work is to start NM, establish my cellular internet connection, then kill dnsmasq then establish my ICS network (on eth0). If I don't kill dnsmasq, then it does bring up the connection, but it then shuts down in a matter of seconds. It is all very manageable using a launcher (kdesudo pkill dnsmasq) on the task bar, but not all that elegant.
the IP range and where this is provided to Network Manager or the network itself is my real question now.
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Dec 30, 2010
I am running dnsmasq in debian lenny, wvdial connecting but dnsmasq doesn't work, the /var/run/dnsmasq/resolv.conf file is empty this is /var/log/syslog:
The /etc/resolv.conf and /etc/resolvconf/run/resolv.conf is ok:
This is my /etc/dnsmasq.conf:
[url]
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Dec 27, 2010
ubuntu: 10.04dnsmasq: 2.52-1ubuntu0.1I've installed dnsmasq and it is performing DNS duties correctly. I'd like to limit access to the dnsmasq service to a specific address or interface. I've tried adding variations and combinations of the following to /etc/dnsmasq.conf:
Code:
interface=eth0
and
[code]....
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Feb 17, 2010
I am trying to get more control of my small office network. It consists of several windows workstations, a debian box, and a ZyXEL P-660HW-D1 router, Right now, the only way to reach the debian box from other computers is to type in its ip address.
The goal is to be able to reach the box by just typing ://debianBox into my browser, though ideally I want to set it up to be something like ://debianBox.officenet, and to also reach other people's computers by typing ://mattBox.officenet and ://fredBox.officenet
The Zyxel router has a LAN page with a DHCP Setup tab with fields setup like so In the past I was able to mange this using an Orange router, but now I have to use the ZyXel.
So I installed dnsmasq on the debianBox, but I do not know how to configure it to get the results. I want and still get internet fromthe Zyxel router.
In the etc/hosts file of the debian box I added 192.168.69.15 debianBox, and for testing on my windows machine I set the primary dns entry of the Ip4 connection to 192.168.69.15 as well, but typing ://debianBox in my browser still gives me not found.
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May 29, 2010
My upstream DNS server is a bit slow, so I've installed the dnsmasq cacher locally. I have the service starting on runlevels 2, 3, and 5. But I can tell by Firefox's behavior that dnsmasq does not work upon boot. Firefox lets its own DNS cache expire after 60 seconds. When I do my second Google search five minutes after my first, the second DNS lookup for www.google.com is just as slow as the first.If I manually restart the dnsmasq service, I get the fast name resolutions I expect.
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Jun 19, 2011
I just noticed that files are transferring between my two computers at no more than 11.3Mb/s no matter what I do.
I regularly use sshfs to mount a drive on my main computer. But after noticing a dismal speed of 10Mb/s when copying a file, I thought maybe sshfs is slow. So I tried scp, and I'm getting 11.3Mb/s with scp. Using the blowfish cypher gave me no change to this, still exactly 11.3Mb/s.
I have a Gigabit network except for the cable, which is a 10meter, 100Mb/s cable.
I have a custom modified sysctl.conf file which I'll post here if needed.
Is there anything I can do about this pathetic speed ? Maybe a modification to my ssh config ? sysctl ? anything ?
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May 10, 2011
I have a linux debian on a network connected to a router through a ethernet cord. My linux is hogging the network speed and the users of the other computers on the network aren't very happy. Is there a way to limit the download speed on only my computer?
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May 11, 2011
I have a DNS server (dnsmasq v2.55) at the center of three subnets: x.y.1.0/24, x.y.2.0/24 & x.y.3.0/24. dnsmasq does a grand job of issuing a suitable DNS server address with the DHCP option 6. So, machines on subnet x.y.3.0/24 are told that the DNS server is x.y.3.2, machines on subnet x.y.2.0/24 are told that the DNS server is x.y.2.2 and machines on subnet x.y.1.0/24 are told that the DNS server is at x.y.1.2. Even though the DNS server is the same box (although with three nics).
Now the question is:
How do I make dnsmasq respond similarly to name resolution requests? So that when:
Machines from x.y.3.0/24, ping <name of DNS server> dnsmasq returns x.y.3.2,
Machines from x.y.2.0/24, ping <name of DNS server> dnsmasq returns x.y.2.2, and
Machines from x.y.1.0/24, ping <name of DNS server> dnsmasq returns x.y.1.2.
Currently, the DNS server returns the IP address that is assigned in /etc/host. Which, of course can be changed, but via that mechanism, will always be wrong two out of three cases.
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Jul 27, 2011
probably this is the most idiotic question and probably i know the answer. But I want to get confirmed. Is it anyway possible that my mobile broadband speed is slow because of my installation is wrong? actually, I formatted my machine and make it dual-boot. After that my mobile-broadband speed is horrible slow. I installed (a)kmod-wl and as dependency, broadcom-wl but my lspci only shows intel network manager.
Code:
$ lspci|grep Network
17:03:00.0 Network controller: Intel Corporation Device 008a (rev 34)
can this be related or just coincidence?
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Jan 18, 2010
Any command line tool to measure the network speed between my two linux servers without taking disk speed into account? My network is supposed to be 100Mb, but it doesn't feel like that so I wonder where the bottleneck is. The numbers that I see doesn't correlate well to that. So I'd like to know the speed network card to network card.
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Nov 12, 2010
how to view my network connection speed. EG: 10/100/100 mbit. I searched and searched with no luck, I tried ethtool as well as mii-tool.
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Jan 26, 2010
I was wondering how to calculate some problems related to network transfer speed. If someone can show me a function to calculate network transfer speed over time, I would appreciate it.I'm in the midst of transferring 1.3TB of data to a network storage system. By looking at the stats, 4.6GB file transferred out in 6 min and 30 seconds. How long would it take to transfer 1.3TB of data?
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May 4, 2011
In mi fstab file I mount a smb file server at boot. The code is:
//<ip address>/data /home/eng-2/NAS smbfs credentials=/home/eng-2/.smbcredentials,dir_mode=0775,gid=1000,uid=1000 0 0
Transfer rate to the server is approx 100 KB/s
Whilst transfer rate from the server 16 MB/s
If I mount it from Places>connect to server. Both to and from speeds are 16 MB/s. Why is it so slow when mounted through fstab?
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Jul 13, 2009
I upgraded from Fedora 10 to Fedora 11 last night in response to a pop up window. When I rebooted after the upgrade my wife immediately complained about the internet not working. Actually the connection up was working but Fedora 11 upgrade had made it slow almost to a stop There are two XP machines the network behind a local D-Link wireless router with Comcast high speed internet. When I disable networking on the Fedora machine the internet connection immediately returns to normal on the other two machines. Also there is a second or two period after enabling networking for a quick upload or download before the connection clogs.I checked the system monitor network history and found that there is a constant networking send rate of just under 180 kb/s in the background.This occurs even when the browser, email client, and automatic backup are off and the only process showing significant CPU use in the system monitor is the monitor itself.
I tried netstat but there were so many /tmp/orbit entries that I could not scroll up to the top of the listing. Is this normal. If so, does anyone know the netstat command options to just see connections with sent packets. I also tried ifconfig -a. This shows no Rx packets at all, and no TX packets except on eth0, The total etho TX packets matches t,he reported by the system monitor, and in the monitor you can watch the total accumulate in approx 180 kb/sec increments. I don't understand why 180kb/sec TX would make a dramatic difference in internet network internet speed. Comcast reports upload speeds in megabytes. I need to be able to use the net in Federa, but I am also curious to learn what is the caused the problem.
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Apr 22, 2010
I have problems with my network speed when i ping my proxy server I end up getting a high packet loss generally more than 30%.I have tried to use various network monitoring softwares like etherape, wireshark, tcpdump but I am not able to get to the bottom of the problem.basically I am trying to find out where the lost packets are going.
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May 18, 2010
A lot of people have the problem to find themselves with Lucid Lynx 10.04 and experience massive issues when connecting to wireless - me too. As a service, here some relevant links which promise relief:
[code]...
I tried all of them, and none reliably worked. Every solution which required re-association wtih the AP helped for some time, but nothing helped for long. First, don't let yourself fool by the disable IPv6 trap - while it is "enabled" it is acutally not used by Lucid! I have a clean install of Kubuntu 10.04 on an AMD64 Laptop with Broadcom STA driver: 03:00.0 Network controller: Broadcom Corporation BCM4328 802.11a/b/g/n (rev 03) However I can reliably stabilize my connection for some time either by manually disabling WiFi with the hardware switch or disabling WiFi by software means and re-activating. This brings speed at par with Kubuntu 9.10 until some time. Can anybody confirm this behaviour?
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Jan 20, 2011
I need to test network card throughput and speed between two computers, one is running Fedora and other running Windows 7. Usually I would use netperf to perform this task, however I can't find Windows build of netperf. Can anyone recommend any network evaluation tool, similar to netperf (clien/server) which has both Windows and Linux versions.
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Apr 1, 2011
I believe I'm running Kubuntu 10.04, but don't quote me on that. Here's the version string from dmesg. Linux version 2.6.32-31-generic (buildd@crested) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #60-Ubuntu SMP Thu Mar 17 22:15:39 UTC 2011 (Ubuntu 2.6.32-31.60-generic 2.6.32.32+drm33.14 I have an emergent problem with my wired ethernet resetting the connection on a frequent basis. When it resets it re-negotiates the link speed and I often end up with a 10Mb/s link and on some occasions a 100Mb/s. The configured speed for the link is 1000Mb/s full duplex using a preup ethtool command. I do not use NetworkManager but have the interface configured in /etc/network/interfaces.
[code]....
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Feb 12, 2010
EDIT: The problem is more basic than dnsmasq. On testing to see if the nameservers are reachableCode:root@ps1:~# ping 218.248.255.146connect: Network is unreachablePost title pre-pended with [DO NOT REPLY] dnsmasq on a recent Slackware 13.0 install is not resolving. Usually dnsmasq "just works". I have tried all the problem analysis techniques I know and am stumped.
First the symptoms:
Code:
root@ps1:~# vi /etc/dnsmasq.conf
[code]...
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Oct 20, 2010
I'm getting error messages or a password querry withouht entry box, if i want to apply admin changes on my system in gui tools
e.g.Software Center
Language Settings
free - gdm settins
users & groups
gksu and sudo are working with my user - it was the 1st user on the system, today i got the following message:
Quote:
org.freedesktop.PolicyKit.Error.NotAuthorized: ('system-bus-name', {'name': ':1.122'}): org.debian.apt.install-or-remove-packages
and sometimes the box apears multiple times and shakes like it does if entering a wrong password - and ends up with failed I'd be pleasant to get some help as it looks like most of the people in the german IRC don't know what to do as they thought like me these software parts would use gksu
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Jun 11, 2009
I have configured a Fedora 10 server on a mixed Win / ix network but am unable to get DNS to resolve on my Fedora boxes.My DHCP is provided from a D-Link 108G Router - but this will not provide DNS.Therefore I have tried to configure dnsmask to provide just DNS and not DHCP. I can ping around my 192.168.1.x network by IP but not name
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Mar 4, 2011
This is the scenario: gentoo box (distro shouldn't be relevant here) and win7 box. Gentoo box is dhcp and dns server, via dnsmasq. From win7, I can ping gentoo by both ip and name. No problem there. From Gentoo, I can ping win7 by ip, but not by name. The dnsmasq log seems to receive the name ok, it's "Tere-PC". I have been looking around for many hours now and I know there must be something simple I am not taking into account.
Code:
dnsmasq-dhcp: 55480937 available DHCP range: 192.168.0.50 -- 192.168.0.150
dnsmasq-dhcp: 55480937 client provides name: Tere-PC
dnsmasq-dhcp: 55480937 vendor class: MSFT 5.0 .....
Code:
# ping Tere-PC
ping: unknown host Tere-PC
Is there any way that dnsmasq, which is supposedly a dns server, will link this name to the given ip?
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Mar 20, 2011
I have 2 questions:
1. How can I set the TTL to 2 days for all stuff cached by dnsmasq?
2. When I go to [URL] from my browser and then execute [URL] the query time returned is > 0 ms. When i execute it again it is 0 as it should be. So is dnsmasq not caching the domains looked up by my browser or what? in /etc/resolv.conf I have only 127.0.0.1 and for the upstream servers I have a different file that is only used by dnsmasq.
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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 192.168.0.1.
[Code]....
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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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Jan 9, 2011
I got a CentOS server setup as a dhcp server using dnsmasq. I followed this guide more or less: [URL] So, the problem seems to be concerning the DNS server on the clients. In windows I get the "limited connectivity" icon for the network, and when I select troubleshoot it says the DNS server does not respond. Issuing 'ipconfig /all' clearly shows the IP of the CentOS machine as the DNS server, which should be correct, yes?
ETH0 is working as WAN connection and that works great.. no problem with the WAN connection at all on the CentOS machine. ETH1 has the IP 192.168.0.1 and mask 255.255.255.0 When starting eth1, it sometimes says that it can't start eth1 because the IP 192.168.0.1 is already in use.. but that is most certainly not the case. Maybe there's some kind of issue here that messes with the DNS? What's mind boggling is that it works great on a linux machine (dhcp client) and on a windows xp machine. but it does not work on the windows 7 laptop and a vista laptop and a pda device.
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May 5, 2010
I'm trying to get the Windows machines on my network to access hostname.local addresses. I want to do this without setting up extra software or settings on the Windows computers.
I already have dnsmasq on my server handling all DHCP and DNS requests. How can I get dnsmasq to return an IP address for a .local address?
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Nov 12, 2010
I am experiencing severe DNS delays today, so I tried to install DNSMASQ by following the instructions given on several pages on the web to make it function as a local DNS cache.
The installation was successful, and after editing the configuration files as instructed, I now have a working DNS cache on my computer.
However, it seems that the addresses are not cached for a long time ; for a given domain, the speedup lasts for a few minutes. If I try to access a previously visited domain once more after several minutes, a new (slow) external lookup is made.
Since websites' IP addresses are not changed every five minutes, would there be a way to tell DNSMASQ to keep the IPs in the cache for a long time (several hours at least) ?
This is very important for me because the DNS lag that I am experiencing makes external lookups last 10 to 20 seconds.
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