Ubuntu Networking :: Opendns - All Connections Rather Than 1 By 1?
Nov 14, 2010
So I'm going to try out opendns as an internet filter. But I'm not doing it on a network/router, just on my local machine. Using ubuntu, I read that I need to select each connection and change the dns settings.Is there a way to generically add the dns settings so that if I connect to a new network I don't have to manually update it's settings?
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Jun 9, 2011
I am trying to block unappropriated sites on my ubuntu 11.04 with openDNS I installed it and in addithion to the catagoriegs I checked I also added some sites to the always block list, everything according to the site should work. But the problem is that nothing is blocked (also the sites in the always block list). I cleared the browsers cache but it didn't help when i try to clear the local cache with the provided command in their site I think it says it ignored my network.
About firefox,I want to block images only on facebook automatically so I added [URL] to the always block list in the images category and it should work but it just won't block the images. I should note that I use the same method on chrome and there it work like a charm. how to get that working on firefox?
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Apr 15, 2010
I've started using OpenDNS on my network, the problem is, my router gets an dynamic IP, which means I have to regularly update the OpenDNS settings.
DDClient apparently supports OpenDNS, but the Ubuntu package for it asks for various details I don't know, and can't find. I'd rather not have to boot up a Windows computer just for this.
So I've got two questions, I guess - first is, are any of the Windows clients known to work under Wine (that can retrieve the IP from the router and forward it), and the second being, how exactly do you set up DDClient to use OpenDNS?
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Jul 3, 2010
I am having trouble setting up FamilyShield on an Ubuntu 8.04 system. The setup instructions on this (opendns.com) site are for newer versions of Ubuntu. Network Manager settings are different in 8.04 and don't correspond to the instructions. However, given the age of this computer, it cannot run a newer version of Ubuntu, and 8.04 is an LTS supported until 2011,
Complicating matters is I am living as a guest, so do not have the option of setting FamilyShield on the router. It must be done on my computer.
Here's what I've tried:
System->Administration->Network
go to DNS Tab and add the FamilyShield DNS numbers. BTW, there are two DNS numbers from the internet owner's ISP (Roadrunner) automatically in here already, along with "socal.rr.com" in the Search Domains field. If I try to delete them, they reappear when I reboot. If I add FamilyShield DNS numbers here, either along with, or in place of the ones that automatically appear here, they do not take, and on next boot FamilyShield DNS numbers are gone, but "socal.rr.com" DNS and search domains reappear.
I've also tried:
Code:
sudo gedit /etc/dhcp3/dhclient.com
and added following line at the end:
Code:
prepend domain-name-servers 208.67.222.123,208.67.220.123
When I reboot the system, I'm still using the assigned DNS numbers from "socal.rr.com".
I was able to try a newer version of Ubuntu (on a different machine) on this network, and it worked fine with the setup instructions. So this appears to be a problem specific to how Ubuntu version 8.04 handles DNS number changes.
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Nov 17, 2010
I have an odd thing going on with DNS. I have two machine's running Ubuntu and for some reason they do not always resolved internet addresses on my Internet connection. This has gone on since the Ubuntu 8.04 when I first started using Ubuntu. Anyway, I use OpenDNS' DNS servers and I have been running perfectly.
This is what is odd. My Windows XP Machine never has the problem. It always resolves. Does Windows Possibly have some Microsoft hosted DNS server hard coded in there as a backup? Things are working fine this way so I am not looking to change. I am just a little puzzled and finally got around to asking, "Why is this".
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Feb 7, 2011
have a problem with my network-manager in ubuntu 10.10.when I dial one of my vpn connections, my other vpn connections be disabled and I can't use them!I tried to restart network-manager and gnome-panel, but it does't seem to solve this problem.
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May 17, 2011
setup OpenDNS on natty. I've gone through the OpenDNS forums, and the ddclient.conf files I found there, when used, don't work.
[URL]
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Sep 18, 2010
Anyway, my internet has been working fine until recently (last week or so). For most sites, Firefox will load the page quickly. However, every once in a while, but frequently enough to annoying, it will say "loading" for 10 seconds, then direct me to OpenDNS, which says the page cannot load. When I try it again, I get the same problem. Other sites are fine.
Then, when I quit Firefox and restart it, that site will work fine, but soon enough, another site stops loading properly.
For example, Google will work fine for awhile, then I'll get the error, but after restarting, Google will be fine again, but now Wikipedia, which loaded before, gets the error. And the cycle continues on yet another website...
I haven't changed any Internet or network settings recently. I'm on Ubuntu 10.04.
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Oct 23, 2010
So for ive changed the dns on my home router to Opendns and ive added this What does a dns attack look like? how would i know is my dns was poisoned or if i was under a kaminsky style attack?
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Oct 15, 2009
I'm using fedora 11-KDE version but I'm not change my dns adress.Can you write here it step step =) Only I want use opendns fedora 11-kde =)
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Aug 23, 2010
Neither of my wired network connections are listed in the network manager applet. I know that networking seems to be functional since I can ping local devices on the network. I can't resolve DNS names however. I suppose this is because network manager usually handles DNS? I've posted the outputs of various configurations below.
Code:
/etc/NetworkManager/nm-system-settings.cfg
# This file is installed into /etc/NetworkManager, and is loaded by
# NetworkManager by default. To override, specify: '--config file'
# during NM startup. This can be done by appending to DAEMON_OPTS in
[code]....
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Jan 21, 2011
Is it fair to say that connLimit and hashlimit are very similiar on Linux i.e. while hashlimit caters to limits for groups of ports, they both set the connection rate limit per host? How in IPTables, do I configure a policy that limits connections on a port that encapsulates the total sum of all connections from all hosts? i.e. I do not want to allow more than 6000conn/minute for port range that is the sum of all connecting hosts?
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May 30, 2011
I recently installed Fedora 15 now, and during installation I set the internet connection manually, then did update and after reboot, the internet connection settings have been removed. Now I can not set because the network connection to the Internet Connection is inactive. I mention that before the update was functional internet connection.
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Jan 12, 2010
When I click on the network manager icon next to the date in the upper right corner of my screen, my network connections do not show up. I have added two DSL connections on my laptop (username & password) but it doesn't show up. Everyday I need to use
Code:
sudo pppoeconf
if I wish to connect to the internet.
Both these connections are added in the same way on my Desktop Computer and it shows up on the network manager. One of them is even the default which connects automatically on startup.
Because it's not working I assume network manager is not compatible with my laptop. Are there patches to install or other programs that can easily manage my internet connection?
I'm using Ubuntu 9.10 on a not-so-new laptop.
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Jul 27, 2010
I have recently installed lucid 10.04, and I am having difficulty accessing my wireless. Following instructions to install the drivers for my wireless card, I always run into a problem when I need to configure my card. When I go to system-administration-network, there is no connections tab listed. I can only access General, DNS and hosts.
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Aug 15, 2010
Did ragemaw ever get that missing connections tab? Mine is missing too and furthermore wireshark cannot set up on any interfaces, because it cannot find them.
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Jan 30, 2010
Here is the layout of my network:My cable modem plugs into eth0 on my ubuntu server which acts as a firewall (shorewall) and dhcp server to my lan. A dd-wrt access point is plugged into eth1 and then a bridge connecting my xbox360 and another bridge connecting a desktop computer.Everything works pretty well, except a few times a day, my network will just shut down. The wireless on my macbook and my wife's laptop will just shut down, and if my xbox is running, it will lose connectivity. It will be down for maybe a minute or two, and then come back up like nothing ever happened.I never had this problem when I had just a dd-wrt router running everything instead of my server.When I ssh into my server afterwards and run dmesg, this is what I will get:
Code:
[398598.251548] martian source 169.254.1.255 from 169.254.1.33, on dev eth1
[398598.251565] ll header: ff:ff:ff:ff:ff:ff:00:23:69:3d:b1:82:08:00
[code]....
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Feb 7, 2010
I have been using Ubuntu for a couple of days now and I am starting to like it alot. I decided to install it on my laptop, but getting it to connect wireless is becoming a problem. I have been searching all day on how to fix this but nothing so far has helped.I had Windows 7 installed before and it connected fine.
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Apr 7, 2010
I have the latest Ubuntu (9.10) desktop. My 2 cards are:
WiFi: Intel(R) Wireless WiFi Link 5100
Ethernet: Marvell Yukon 88E8072 PCI-E Gigabit Ethernet Controller
Is there any way to get drivers working? My hardware switch is on and i have Ubuntu 9.10 running persistently on my usb so i can download the drivers etc. and install them.
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May 17, 2010
Fresh install of UbuntuStudio 10.04. This is really bizarre.
I can't seem to connect to the wired connection mainly because there is no connections tab (pic attached).
Here's some printouts:
dmesg:
Code:
lshw -C network:
Code:
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Jun 7, 2010
I am a user of Ubuntu 10.04 and I use Firestarter because it lets me know which IPs I am connected to, which ports are used, and which applications are using those ports. The problem is that I can't use Firestarter with my non-sudo account (well, I know that I can change my system settings to do that, but I'd rahther not do it).
So the question is: Is there any application that lets the user monitor the internet connection?
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Jun 17, 2010
Alrighty, I have a couple of questions regarding use of the TSC for remote desktop connections. I'm connecting from my Ubuntu Desktop (Lucid) and i'm connecting to my Laptop (Windows 7) i'm running PC Tools Firewall Plus on the windows machine. The window's machine has remote assistance allowed. At the moment i'm just trying to get the TSC to work on my home network. I filled it out as follows:
Computer: Lappy's IP
Protocol: RDPv5
Username: ZachAdmin
Password: *My password*
Domain: Blank
Client Hostname: Blank
Now the first time I tried to connect, about 20ish seconds passed and "The connection has timed out" appears. So I went into my Firewall and sure enough it was blocking the UDP/TCP packets that my desktop was sending. So I temporarily allowed all UDP/TCP packets. Now when I connect "Connection Refused" immediately pops up. I go into my firewall and it's allowed both inbound and outbound packets from my laptop to my desktop and vis versa. So now i'm really stumped.
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Jul 17, 2010
Now I know how to set up port forwarding on a router so this is not that. What I want to do is, if possible, connect from Computer A to computer B and use computer B as a proxy for all of the Transmission (bit torrent) connections. I know how to do this with DNS, Http, etc etc but I'm not quite sure how to go at this with torrenting.Note that in this case Computer B is a ubuntu 10.04 server with an SSH server but no torrenting program installed.
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Aug 3, 2010
i have my connections up & running once i connect my laptop in my .....but the trivial problem of cant browse the internet
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Aug 21, 2010
So it snatched up this old Dell Inspiron 5100 with a WN511B wifi card. When I plug the card into the slot nothing happens and no wireless connections show up. Can someone walk me through on getting the wifi card to work?
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Aug 22, 2010
I run a webserver Apache2, php5, and MySQL. They are all set up correctly and I can access my website at [URL] I have, also installed, noip2 to update my IP address to no-ip.com for my domain name. Here's the problem: I can access my website through that domain name on other computers, both on internet and on the same network. But I cannot access it from my own computer (using the domain name instead of localhost). I need to be able to access the domain name on my computer because some pages on my website have been defined as the address to my domain name and not localhost. I cannot change this to localhost because if I do then people outside cannot work the webpages correctly. I had the same troubles on Windows before and I simply enabled loopback connections by typing in my private IP address along with the domain name into the Windows hosts file. I use version 10.04.
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Sep 10, 2010
I got this working om my laptop but on my desktop this keeps going wrong, its an upgraded system to 10.04. Made a standard pptp connection using network-manager (and the connection is 100% fine, working on laptop and on windoooz machine) This is syslog any ideas, i reinstalled network-manager-pptp and pptp-gnome, but no go no go..
[Code].....
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Nov 10, 2010
I have an Acer AspireOne D255 netbook. I just installed Ubuntu Netbook Remix 10.10 and it looks pretty sweet.Right now, I'm on a wired connection. It's not detecting any networks, and I know at least my home wifi should show up (and usually we can get onto our neighbors!)I used to have a different model of an AspireOne (I think it was 531h but I'm not 100% sure) with UNR 10.04, and my network was detected right out of the box.
This reminds me of when I installed the desktop version of 10.04 on my iMac. I couldn't bring the wired connection to the room it was in, and my wifi didn't show up on it. I just gave up because I like my Mac so it wasn't a *huge* deal. but I definitely don't want to use this stupid Windows 7 Starter that comes on this netbook!
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Jan 10, 2011
I've just started using ufw with the frontend gufw. I've configured it like this:
Accept everything in and out as default Block incoming FTP connections from a certain IPv4 address (brute-force for days)
Today I noticed that IPv6 connections don't work anymore. The connection to two hosts (IPv6 only) times out. As soon as I disable ufw entirely, the connections work again. The host I want to connect to is:
2001:638:a00:f00b:200:1cff:fedb:d38f port 7337
2001:638:a00:f00b:a00:6ff:fe07:cda2 port 7337
These are small telnet servers that print out a number (temperature nearby) and close again. I'm logging those values in a database.
Is ufw not IPv6-capable and blocks things it's not supposed to?
Update: ufw seems complete garbage to me... You can't even configure it while it's disabled! How am I supposed to safely activate it when the first thing it does is blocking all communications? I can't even configure it to let me in before I configure it to keep me out... And then, even if I explicitly let it pass port 7337, it still blocks it through IPv6.
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Feb 8, 2011
I went to get online on my laptop this morning, and have no connection. When i click on the icon up top in the task bar, it only shows vpn connection. It does not show ANY wireless connections at all. I checked, and the enable wireless is checked. It just does not pick up any connections.
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