Networking :: Cannot Connect To Internet At AirPort - Invalid Certificate
Aug 27, 2010
I'm at the AirPort. I can't connect with Linux but can connect with Windozzze. In Linux I get: You have received an invalid certificate. Please contact the server administrator or email correspondent and give them the following information: Your certificate contains the same serial number as another certificate issued by the certificate authority. Please get a new certificate containing a unique serial number (Error code: sec_error_reused_issuer_and_serial). The page you are trying to view can not be shown because the authenticity of the received data could not be verified.
The airport requires that one look at a login message and agree to its terms before making any other connection: that's what I can't get and can't get further. Up-to-date Slackware, latest kernel (self-built), Atheros wireless chipset, eMachines e725-4250 laptop. I've connected here before, always in Linux.nl. Who's objecting? This is in Firefox the only browser with Javascript I have. What certificate are they talking about? I just downloaded Opera: it works. It detects the defective certificate and asks if I want to proceed. How do I get Firefox to do that? Should I move this message to a different forum?
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Feb 27, 2009
Kernel: 2.6.27.15-170.2.24.fc10.i686
WLAN: Broadcom BCM4311
Problem: I run WPA2 Personal encryption on all my wireless devices. At work we use Cisco WAPs and I can connect flawlessly, simply by entering the password. At home I use Apple's Timemachine, which is basically an Airport Extreme A/B/G/N router.
I go to Network Manager and choose "Connect to Hidden Wireless Network". I enter in the SSID of my home wireless, choose WPA2 Personal, and enter in the password. After ~1 minute Network Manager spits back a window requesting the WEP key.... But I'm not running WEP. This is extremely frustrating. I delete the network and try again... same behaviour. My assumption is that this may be isolated to Airport Extreme network devices but I'd really love to find a fix. Just FYI: I have a MacBook Pro and a system running Vista that connect without a hitch.
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Jun 15, 2010
Got F13 installed yesterday, this afternoon I suddenly started getting Secure Connection Failed warnings. I'm not sure whose problem it is because it mentions uses an invalid security certificate.This certificate is only valid for *.opendns.com(Error Code: ssl_error_bad_cert_domain)It continues to say that someone could be impersonating the actual server. I am still receiving mail through google and my google calendars seem to be working. I do use OpenDNS for my DNS instead of my ISPs (Comcast which would very often slow down) and obviously I use IMAP mail with google on Thunderbird. So is it google, or OpenDNS, or Thunderbird that has a problem. Firefox does not seem to have a problem
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Oct 28, 2010
At home, I can easily connect to my home network with ubuntu. But at school, things are differently. The wireless security is tighter, and I need more then just my username and password to connect.
(See attachment for Screenshot)
The last two lines, okay, but I seem to need a certificate, and that MSCHAPv2, Anonimous identity. I don't understand what I need to enter in those fields. I only got a username and password from school and that's all I need for windows. So why does Ubuntu want/need more info?
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Jun 20, 2011
I had to do a hard shut down on my linux computer. Every since then it is not working properly and I get an invalid certificate on every page.I have never upgraded Debian since I installed it two years ago. With my experience with Gentoo I have found that upgrades can be a problem and it worked fine so I never messed with it.
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Oct 7, 2010
At the login webpage of <[URL]>, the Time Warner Cable (TWC) Webmail site, I am immediately confronted with a warning that the Security Certificate is invalid & that the site is untrusted. This occurs with Firefox, Seamonkey, & Konqueror. This does not occur on Microsoft or Apple systems; I have checked other colleagues machines. I have manually overridden the warning & everything functions fine. I have contacted TWC & am awaiting their tests. But, I would like some independent corroboration from other users in the Linux community. Could some of you perform the test yourself on this URL? An error will be readily apparent.
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Sep 17, 2010
My organization just moved to using a zscaler proxy system. Basically, I have to use a .pac file in Firefox to get onto the proxy, which directs me to a series of two Flash pages, one to input my username, one for the password. After reading through the .pac file, I was able to get some command-line things to work by specifying the proxy given at the end. However, this server uses an SSL certificate that is not emitted by an authority, but rather directly by our organization. In Firefox, I had to import this certificate to enable https:// browsing.
Is there any way to "import" this certificate so that yum can use it? Because yum freezes with the error:
Code:
Could not get metalink [URL] error was
14: Peer cert cannot be verified or peer cert invalid
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Apr 25, 2009
I just upgraded from Ubuntu 8.10 to 9.04. I installed Webmin 1.470 but when I tried to run it from Firefox 3.09 I got the following message.
localhost:10000 uses an invalid security certificate. The certificate is not trusted because it is self signed. (Error code: sec_error_untrusted_issuer).
Never had this problem with Ubuntu 8.04.
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Nov 1, 2010
So I cant get 7.10 to run, it gives me a "Not enough video ram" issue. So on my 300mhz iBook I have shoved 6.06 into it. Airport issues are the only problem, I cant get it to connect to Wifi at all.
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May 19, 2011
I get an Untrusted Connection error when I visit this site to login into my GRE account, and I cannot add it as an exception, in Mozilla Firefox 4.0 on Ubuntu 11.04. When I visit the site using Chrome, I have no issues. Is this a bug in Firefox's certificate management? I'm using Ubuntu 11.04. I do not get this error in Windows' Firefox 4.0.
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May 11, 2010
I was easily able to install Ubuntu 10.04 (powerpc version) on my old iBook G4 just to see what it was like. After installation, I tried to connect to my Airport Extreme, and it didn't work.
For the past few days, I have been trying to research how to be able to connect to my Airport Extreme, and I have had no luck. Apparently, there is some sort of driver that I have to install called b43-fwcutter, but I have no clue where to find it or how to install it.
Btw, the iBook obviously isn't the only computer I have, so I am able to download necessary packages on other computers, and transport it with USB flashdrives.
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Jan 12, 2010
I'm not sure if this is even possible and I've tired searching, but I can't seem to figure it out. I have a few shares setup in Samba. I want them to prompt for a username and password. If an invalid user/pass is entered I want the user to be authenticated as a guest.
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Feb 1, 2010
On this box I have Two seperate Ubuntu installations. Recently in both I seem to be having the same problem. I initially can connect to the internet as per normal and use any internet application. But after a period of time, sometimes just minutes, sometimes hours, even though the icon says connected, I cant update pages or send emails etc because there is no actual connection. My Physical connection is good I know - My Ubuntu laptop and Windows gamming PC connect fine during this period. So
Does this suggest an intermittent hardware fault or is there some thing in Ubuntu I can check to make sure that it is setup correctly and nothing has been corrupted? I am a lay PC person - I dont really want to be command prompting - Plug & Play and Point & Click is my limit.
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Oct 21, 2010
I tried to install Xubuntu 10.10 Maverick as dual boot on my laptop. However when xubuntu is on, I can't find a way to connect to internet. When I try the 2 arrows on the up-right corner the option for wireless is deemed. I tried offline/online, that did not work either. when I click the firefox It says you are not connected.
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Apr 6, 2011
I am trying to setup a dhcp server for my internal network. I have two NICs, a modem, and a wireless router. I have my server connected directly to my modem which is providing me with Internet access on eth1 and is working fine. I have dhcp and dns setup on eth0 which is connected to my router. The router shows that it is connected to the Internet but when the router gives a client computer an IP address, the client is unable to connect to the Internet but can connect to the router. I will post my configuration files below with my current configuration.
[Code]....
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Aug 8, 2011
I can connect to the internet through wifi, but I cannot connect to anything on my network. I have a printer and a NAS, so I would really like for this to work again. I have a dell laptop with a Broadcom card.
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Aug 15, 2010
I had put my computer on standby and when i restarted it, it powered off within a few seconds. I turned it back on and after that i've lost connectivity to internet on Ubuntu 10.04.
However I have VMware (XP) installed and internet/network works on that. I'm a newbie with Linux.
Here are some outputs:
I have tried to edit the connection using System>Preferences>Network Connections. I entered manual settings for IPV4, but whatever i enter there, it doesnt get reflected when i type ifconfig in the terminal window. I tried setting it to Automatic DHCP as well. Doesnt work.
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Jun 14, 2010
I use Ubuntu i can not work internet connection Please help me search for a solution but did not find
Use the USB modem model x060s.
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Nov 12, 2009
I've recently set up a local development webserver using Karmic Koala. I downloaded and installed the server version of Kubuntu and have the web server working.
The problem is that for some reason, I'm no longer able to connect to the internet. I can connect to my router, and other machines in my network can VNC into the server.
I'm using an wired connection to the router and have the server set up on an internal IP of 192.168.0.100. I used to be able to connect to the internet, I downloaded and installed a load of packages etc before it stopped working.
The last thing I remember doing before it stopped working was that I installed Samba so I could share files with the other machines on the network (two Macs running Leopard and a WinXP laptop).
I got the share working - I copied a load of files to the server via the share, rebooted, and for some reason now I can't connect to the net (and other machines can't see the Samba share either.) However I can still VNC into the server.
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Mar 21, 2011
I have installed linux 10.10 and i want to connect internet through USB Bsnl EVDO modemprocedure/commands to connect to internet
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Dec 2, 2010
When i boot my computer and open ubuntu version 10.04.1 the internet wireless connection i have connected automatically. Now, for one reason i don't know, the internet did not connect to the internet. The progam display a message to uncheck the checkmark in the File Menu. After doing this, i refresh the system but it still not connect.
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Sep 15, 2009
I have a Dell PowerEdge 1650 server with 3 NICs in it. I am trying to use one NIC (eth0) to connect to the internet, the second NIC (eth1) to share the internet connection to a LAN, and the third NIC (eth2) to connect to the LAN.
It is running Ubuntu server 8.10
The problem that I'm having is that NetworkManager (version 0.7.0) keeps setting eth2 as the default connection, and then I don't get any internet at all from the server.
My main goal is to be able to share files from the server to computers on the LAN. The secondary goal is to have a virtual machine hosting a Halo server, connected through eth2, so that it can host LAN games. But that is a secondary goal after I get the connections to work.
I've been looking around and finding other people who have done bits and pieces of this, but not the whole thing. I had been hoping to simply use the NetworkManger, but I don't mind editing config files.
Also I can't seem to find any good instructions on editing the /etc/network/interfaces file. The man file is incomplete, and everything seems to point back to the man file.
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Mar 6, 2010
I have installed fedora 12 recently. after installation i tried to connect to the internet using BSNL broadband connection. I filled in the details such as IP, Netmask, Gateway and even DNS servers. In the services also I ensured that the network manager services is on. However even though my computer cannot connect to the internet. I then tried the ping test of the modem from the address 192.168.1.1 and found that the ping test is successful. Then i tried the network administrator and there I noticed something unusual.
There are two options in the devices eth0 and eth1 thats ok but the unusual; thing is that the Activate (green button), Deactivate (red button) and even the delete buttons are in the background and I cannot select them. Isthis the problem for the network connectivity.
[Code]....
I then tried the ping test of the modem from the address 192.168.1.1 and found that the ping test is successful. Then i tried the network administrator and there I noticed something unusual. There are two options in the devices eth0 and eth1 thats ok but the unusual; thing is that the Activate (green button), Deactivate (red button) and even the delete buttons are in the background and I cannot select them. Isthis the problem for the network connectivity.
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Apr 4, 2011
After working tirelessly for that past 2 months to make my ethernet card works on my toshiba laptop, finally the computer recognizes the ethernet card. But the problem now is the network configuration as i can't connect to the internet. i'm able to assign the eth0 an ip address and netmask and make it up running, and when i do ifconfig -a i can see all is fine but yet i'm not connected to the internet. So i checked /etc/sysconfig/network-scripts and found out that ifcfg-eth0 and resolv.conf are not present. Now my question is how can i create them(step by step pls)? and what should be their values? And is that all i need to do to configure the network and have my internet connected?
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Oct 28, 2010
I have just installed fedora 13
i want to connect to Internet
i am using broadband connection
how to do it via dsl
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May 22, 2009
I'm trying to connect to the ethernet using my ethernet cable but it seems that my Desktop is not able to get and ip address.
I connect the cable to my laptop, using slackware OS too, it can connect and surf the internet. Before i install my Desktop with slackware, i have tried connecting to the internet using windows which shows that the network card is working.
I have tried to use this command as root:
Code:
But the system still does not get the ip address of my network.
I wonder if slackware has install my network card in my system.
My 1st question: How do i check if my network card has been install and configure in the system?
This is the network card in my desktop when i use lspci command:
Code:
My 2nd Question: How can i set up the desktop to connect to my network?
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Feb 18, 2009
My proxy server just stopped from connecting to the Internet. I am using webmin squid proxy. All my setting are fine, meaning that l did not change them. My ip address for the Internet is 192.168.0.1 and for my internal LAN 10.0.0.34 and subnet mask is 255.255.255.0. I have check all the settings seems fine and the squid is running on webmin what could be the problem or where should i start my troubleshoot it. Firewall is turn off. It was working this morning. I did not do any configuration.
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Nov 3, 2009
I installed fresh copy of fedora 11. I can't activate or deactivate ethernet from system>Administration>Network. Why is this............I can connect to internet directly by enabling network icon on right topmost corner. Even doing so dosen't guarantee connection at times. What could be wrong here ? Also my network icon shows it is disconnected whenever I start my computer. Cant fedora 11 just connect to the internet while it boots ?
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Dec 31, 2010
I have installed fedora 14 x86_64 in my pc. i m trying to connect to internet. in wndows i have connected to the internet using following info:
EVOLUTION NETWORK(BROADBAND INTERNET PROVIDER)
username: username
password:...
I am connected to the internet provider via lan. they provide me automatic ip.
Now how can i configure my network connection in fedora 14.
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May 19, 2011
I just installed Fedora 14 on my laptop as a Dual Boot with Windows 7.The problem I am having is that I can't get fedora to connect to my wireless internet.I can access it just fine on the windows side.On my Fedora desktop at the top there a little icon with two little computer monitors there is also a little x by them. Here is whats in the computer as far as networking devices:
Realtek RTL8191SE Wireless Lan 802.11N PCI-E NIC
I also have a:
Realtek RTL8187 Wireless 802.11b/g 54Mbps USB 2.0 Network Adapter
No matter how I configure settings it don't work.If I have to download something on the windows side to fix this please let me know how to get it to the linux partition.
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