Ubuntu :: No Internet Access After Installing GUI On Server
Dec 14, 2010
I was having a hard time configuring ubuntu server with command line so this is the steps I did to install the GUI;
Code:
then
Code:
then
Code:
The GUI started up fine and I logged in as root, then I tried Update Manager and received this error message:
Requires installation of untrusted packages
I tried this in terminal window
Code:
and got
W: Failed to fetch [url]........(-5 - No address associated with hostname
So I did System Testing and got the result that my network was fine but my internet failed!
I could do command line update no problem before installing GUI. I can see it on the network on another computer though.
Trying to setup without the GUI is starting to look easier than with.
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Aug 29, 2010
I'm installing Lotus Domino on Linux Server. Did anyone know how to reverse proxy for HTTP and POP3/IMAP on linux ? I've problem when try to open webmail from internet. I can't access webmail and POP3 from internet. Seems because connection from internet can't directly to Domino through Firewall. If using apache seems no problem with the webmail, but POP3 still can't access.
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Aug 26, 2010
I have a linux box (fedora) with two ethernet cards eth1 and eth2. On eth1 I successfully configured a PPPOE internet connection. Such that from the server I can browse the internet. On eth2 I wired it to a wireless router essentially to provide the wireless cloud. On eth2 I also configured dhcp, such that the Linux box is both PPPOE and DHCP server.However my clients on the LAN cannot access the Internet.
On passing the routing command I get
Destination Gateway Iface
196.44.x.y 0.0.0.0 ppp0
192.168.1.0 0.0.0.0 eth2 (my subnet)
0.0.0.0 0.0.0.0 ppp0.
The router (functioning as a wireless access point mainly) has a fixed IP address of 192.168.1.2 and eth2 has IP address 192.168.1.1. The dhcp file running on Linux has been set with option router (Gateway) 192.168.1.1. I cannot figure out how to correctly set the routing table such that my clients on wireless can access the internet cloud. I googled and googled but no solid solution. Any suggestions?
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Oct 27, 2010
Windows 2008 R2 Enterprise Edition, hyper-v install Windows 2003 R2 for normal Internet use.hyper-v no Internet access after installing ubuntu10.10 64bit is the use of the legacy network adapter, whether or static MAC address and MAC address spoofing is not the Internet,ubuntu network card settings should be no problem.?
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Sep 8, 2010
I have a Toshiba M400 tablet laptop. I installed SuSE 11.2 and have connection to the internet via internal wireless connection to modem zoomtown. I click on mozilla or konquorer but get a blank webpage. I've tried everything I can think of but have not been successful.
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Jun 1, 2010
My wireless card: TP-LINK 322G + I ask, after the installation is complete debian5.04, how to configure wireless Internet access,
lspci entry:
00:00.0 RAM memory: nVidia Corporation MCP61 Memory Controller (rev a1)
00:01.0 ISA bridge: nVidia Corporation MCP61 LPC Bridge (rev a2)
00:01.1 SMBus: nVidia Corporation MCP61 SMBus (rev a2)
00:01.2 RAM memory: nVidia Corporation MCP61 Memory Controller (rev a2)
00:02.0 USB Controller: nVidia Corporation MCP61 USB Controller (rev a3)
00:02.1 USB Controller: nVidia Corporation MCP61 USB Controller (rev a3)
00:04.0 PCI bridge: nVidia Corporation MCP61 PCI bridge (rev a1)
[Code]...
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Mar 17, 2011
I'm currently working on a project in a secure environment with no internet access and I need to install Ettercap and Wireshark on the machines. I thought this would be a simple task of loading Wireshark onto a USB but this did not work and replied with error messages such as: ' Invalid config x86_64-unknown-linux'
what does the error message mean and do I need internet access to install the apps?
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Jan 9, 2011
What distro is the easiest for a new person to get started? I also need wireless internet access. I've tried to do this once before with linux (mandriva as I recall, I gave up)before and had problems installing the programs that would allow that. Also are there Linux versions that I could install on my pocket PC?
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Jun 1, 2010
I am not really that good with linux, yet, I have a smc 2602W v3 wireless pci card, and I want to install it on linux, so I could access the internet, but I haven't found any solutions yet. Btw latest ubuntu desktop version. Info about the card: [URL]
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Sep 26, 2010
I use openSUSE 11.1 since quite a bit and I frequently use YAST (not as root of course). However, since the problems I have to deal with while trying to install WiFi internet access I meet the following problem. I call YAST, get the small authentication screen, I give the right password, which seems to be recognized as such, but I never see YAST appearing. So I can't manage neither my hardware, nor my software.
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Nov 6, 2010
Installing from Live USB: Installing from USB on my desktop (used this method for laptop install) goes without a hitch. EXCEPT, I notice there is no support for my wireless card chipset (Atheros 7413, used /bin/lspci to find). I download the drivers for Linux, but I need Make to build the drivers...ok. I download the Make files from my laptop, make coffee, slap the makefiles onto a flash drive and run the configure file on my desktop version of SUSE. Whoops, need a c compiler (odd that openSUSE did not come with gcc? bit confused on that). If you can't tell by now, I've been using linux for less than a month so I am what you would call a noob? After the lack of c compiler, I drove to my office to snag some DVDs to download the DVD iso image, hoping it would have some form of c compiler/make packaged, since the description does say the DVD has more software (can't find any prebuilt versions of either...?)
Installing from DVD: This was my next step. I wrote the iso image to a DVD and proceeded to boot from DVD. The installer fails at the system analysis, saying it cannot "create a repository". writing the iso to a second DVD produces the same result. Googling has not yielded a solution. tl;dr can't use openSUSE on my desktop because my wireless chipset is not suported by SUSE. I need Make to build the drivers, but I need a c compiler to compile Make, and I need the internet to get both for my machine.
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Nov 2, 2010
Ok i want to access my server from internet, ok I have checked with my mobile internet provider (3) they say they dont block any ports, is it just a case of letting the firewall let external access to pc? ( no router just mobile dongle)And do i just ssh into external ip on ssh port
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Jun 19, 2011
I have a server that was set up by a friend so I have a location to save all my documents for work in a RAID array.
It is on a static IP address, I can ping the hub and other computers on the network absolutely fine.
I can't connect to the internet, the router in question is a Netgear CG3101D. Logging into the router I can see that the server is a trusted device and in all the parameters are the same as other computer running Ubuntu Studio.
Does anyone have any tips of how I can find out how to find what is wrong?
It is Ubuntu 10.04.2 LTS (Lucid).
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Jul 8, 2011
First off - I'm running 11.04 as a VPS on an OpenVZ.
I've set up a very basic environment of LAMP + mail server. Installing apache, php, mysql and proftpd all went fine, but whenever I install iRedMail (which is postfix + dovecot + clamav and few more packages) I lose the internet connection.
Although the server is easily reachable by ssh and http, I can't connect anywhere from the server. At first I thought it only had issues with resolving domain names, but now I see it doesn't even ping IPs as well.
Code:
# ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
[Code]....
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Jan 2, 2011
I'm setting up an old box as a dedicated file-sharing server on the LAN as well as an internet web server for my personal web site but I have no network connection. My computer is connected to a router which is connected to my DSL modem. The router has the Ubuntu box's MAC address as well as a Win7 box, which connects to the internet fine.
Here is what I've tried:
1. Check routing table
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2. Try to add a default gateway to the internet on eth2, this happens:
Code:
3. I edited resolv.conf, which was empty, adding:
4. I edited /etc/network/interfaces as follows:
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Then I type the following:
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And it keeps doing this endlessly because it's not finding the DHCP server, presumably...? This didn't solve the problem and so I attempted another configuration:
Code:
Still, not internet connection and no ability to apt-get anything (says packages not found)
So, this didn't work either. What I've tried should work, especially the route command. Now why won't it work?
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Jan 7, 2010
i have successfully setup PPTPD on my server and I can open a VPN tunnel but my clients can only ping the server's IP, they don't have access to the internet through the VPN.
i have searched different forums and understand that I have to create a route on the server to route packets between the VPN interface and my internet gateway, but I didn't manage to get this work.
here is what my setup looks like:
Code:
root@r31495:~# ifconfig
eth0 Link encap:Ethernet HWaddr 00:1c:c0:c7:13:35
inet addr:94.23.197.XX Bcast:94.23.197.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[Code]....
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Apr 28, 2010
Ubuntu lts server distro using on remote machine. i have remote site where internet access given via squid proxy. so when we enter in browser it start working internet fine. but on command line(bash shell prompt terminal) like wget,ping,nslookup,traceroute etc these commands does not work.
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Apr 20, 2011
I'm getting my first web server configured, and as per a tutorial I found, I used shorewall. However, it blocks all internet access (even from apt) to my server! Does anyone know a decent firewall program or a good guide on configuring shorewall?
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Oct 1, 2009
In my computer networking class I have the option of doing a project where I set up a dns server for our classroom network. The problem is that this network is totally separate from the school network and we aren't allowed to connect it to the internet. I want all the machines to ping each other by name instead of ip using dns instead of host files on all 20 computers. I read on a site somewhere that you cannot do this because the dns queries will always go to the root servers. Is this correct? Is there some way I can do this using dns? The machine in question is using Ubuntu 9.04.
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Jul 15, 2010
Is there a safe way for me to configure my server for access from any internet connection as well as from my home/office LAN? I'd like to be able to access file shares, webmin, the router console behind my Gateway for maintenance purposes. Access to Server Desktop itself would be a bonus.
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May 20, 2011
I am using a CentOS 5.4 server for Snort (it's actually using the easyIDS config). I'm trying to modify some things, and I've noticed that I can't seem to download any files. WGET, FTP, etc... all just time out. It's not a network firewall issue, as I've been monitoring the logs and see no blocked traffic, and other machines on the subnet can get outside with no problems. I checked the Cent firewall using the setup command, and it says it is disabled as well. I'm very new to linux, so I'm wondering how I can troubleshoot this? The wget and ftp errors just say the connection timed out, but I'm not sure why.
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Feb 5, 2011
Turning an old computer of mine into a server and I don't have an ethernet with me to connect it to the router so I was just wondering if I can install Ubuntu Server without being connected to the internet.
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Jan 15, 2011
I have install centos 5 in my dell laptop, now i want to configure and run wifi to access internet through wireless.
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Mar 7, 2011
I am having a server in a corporate data centre. There are some virtual machines running on it.The main server is accessible from internet via SSH. There are some people who within the lan access the virtual machines whose IPs on LAN are
Quote:
192.168.1.1
192.168.1.2
192.168.1.3
192.168.1.4
from internet only one host is allowed SSH. This machine has public IP and is also connected to LAN on the IP 192.168.1.50. Tunnel is not allowed on our network.So now I am came across a solution as explained on this link. I am not clear with on which machine .ssh/config file I add following
Code:
Host securehost.example.com ProxyCommand ssh user1@insidemachine.com nc %h %p Should above be done on gateway where public IP and ssh is allowed or client on internet who has to login. Do I need to create separate accounts on the gateway also so that the users who can SSH to gateway then are forwarded to inside machines? Or one account on gateway is sufficient for different people logging in via internet to my gateway and then forwarded to internal machine?
Then do I need to create an account user1 on the gateway also?
1) What is the correct syntax for ProxyCommand on gateway's .ssh/config should I use
Code:
ProxyCommand ssh user1@inside.machine nc %h %p
or I should use
Code:
ProxyCommand ssh user1@gateway.com in nc %h %p
2) Should I create new user accounts on gateway also which exist on internal machine?
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Apr 28, 2010
Centos 5.4 distro using on remote machine. I have remote site where internet access given via squid proxy. So when we enter in browser it start working internet fine. But on command line (bash shell prompt terminal) like wget, ping, nslookup, traceroute etc., these commands does not work.
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Jul 24, 2010
I've a SQUID proxy server installed in SUSE 9.0 ES server. I've created cache dirs on seperate partitions for better caching. Its working fine. But since last 15-20 days, i've experienced very slow net access to clients. I've gone through the /var/log/messeges file, it generates a two line error messeges
client read request fd602 invalid request
parse http request: unsupported method;HET
This messege increases as the number of clients increates (for internet access). The apperance of error messege lowering down as soon as the number of clients reduces.
As the count of clients increases error messeges increases, internet access getting slower and slower.
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Feb 20, 2010
I have configured squid server and it is working fine. I want that only specific ip addresses in my LAN should be able to access internet and for that I have given these entries in access control lists in squid.conf file:
acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl to_localhost dst 127.0.0.0/8
acl SSL_ports port 443
acl Safe_ports port 80
acl Safe_ports port 21
acl Safe_ports port 443
acl Safe_ports port 70
acl Safe_ports port 210
acl Safe_ports port 1025-65535
acl Safe_ports port 280
acl Safe_ports port 488
acl Safe_ports port 591
acl Safe_ports port 777
acl CONNECT method CONNECT
acl QUERY urlpath_regex cgi-bin ?
acl apache rep_header Server ^Apache
acl our_networks src 192.168.0.181/255.255.255.0 192.168.0.182/255.255.255.0
And in http access I have given this:
http_access allow our_networks
http_access allow manager localhost
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost
http_access deny all
In this I want that only 192.168.0.181 and .182 should be able to access internet but Now the problem is that all the IPs in the LAN like 192.168.0.20 are also able to access internet. What changes I need to do to allow access to specific IP addresses. I am not using any firewall or iptables entries and i am manually changing in the firefox at client side to access internet.
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Sep 29, 2010
Am using Suse 10.2 for internet and e-mail server. currently all my users have access to the internet if they know how to setup their web browsers. how do i deny some users internet access so that a user can only access his/her e-mail but not internet.
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Apr 21, 2009
We have Apache installed on CentOS 5.3 in our laboratory. Indeed the server is running fine for almost two years since it is actually the first CentOS 5 that was released just regularly updated. Now, most of our applications are custom made PHP applications and until now we somehow managed to avoid using PHP to fetch files that are on the internet itself. But now we are desperate because we need to allow PHP to fetch files through Apache but it seems as if Apache is not allowed to make a connection to the outer world. Additionally we use a proxy server to connect to the outer world so right at the beginning http_proxy is used to set that environmental variable. And for the root user it all works fine after that but it seems as if the apache user is not allowed to access the internet. Just to make a remark our web server can be accessed from the outer world so its a one way street for now.
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Feb 15, 2010
i want to buy a pci weasel, people told me i will have access to the server over internet with this board.Does anyone have any experience with this kind of card?How can i have access to server over internet to the bios,etc.
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