Ubuntu Networking :: Using PC As A Router To Share Internet: Laptop Connects But Desktop PC Doesn't
Oct 15, 2010
Since I have 3 Network cards in my Desktop PC I've configured it to act as a Router using GNU/Linux Ubuntu Lucid in combination with Samba so I could share my internet connection. It works on any laptop a connect to it using any of the network cards ports [regardless of the operating system installed on the Laptops], but when I plug that same network cable to any Desktop PC [regardless of the operating System installed] it doesn't even light the LED in the netcards. From the Client PC seems like nothing is plugged in the the netcards.
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Nov 11, 2010
trying to run 10.04 netbook live from a memory stick with a view to installing it on my laptop. However although I can see my wireless router and connect to it I cannot access the internet. I have tried this on my laptop and desktop with the same result. I was however able to download Seamonkey browser using the software manager....this also cannot access the internet. Both of my PC's have no problem when using XP or Linux Mint.
I have also discovered that if I piggyback, using Ubuntu 10.04, on a neighbours open wifi link I can gain access to the internet. My wifi is using WEP protection but as I said I can set the link up to the router, entering the appropriate key code, and have a good signal strength, I just cannot access a google search page.
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Dec 29, 2009
I've just spent the entire night trying to get my computer to share Internet with my laptop. I have DSL Internet with the modem configured to bridge mode. On the openSUSE server I have two NIC's. When setting up the DSL (pppoe) it created a dsl0 which is using the NIC eth0. So now I have dsl0, eth0, and eth1 I configured eth1 for DHCP server. When I connect with my laptop using DHCP it gets an IP address just fine. However I can't access the Internet. I think my problem is in the Kernel IP Routing Table. Here is the output from /sbin/route -n
[Code]...
dsl0 obtains IP from ISP eth0 is set to DHCP although that confuses me because how can the same NIC have two IP Addresses? eth1 static IP 10.30.60.1
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Feb 11, 2010
I have a laptop with Ubuntu 9.10. And I want to connect it to Internet using wifi. Also I have desktop with Ubuntu 9.10 (another desktop with Win XP, but for some day it will run under Ubuntu too ). I want one of this these desktops to share wifi with laptop. I think that a wifi adapter is a way to solve this problem. I found a D-Link dwa-110. i've read on forums that someone successfully installed drivers [URL]. Is there any other ways to share wifi with laptop (only 1 laptop needs to be shared with)? Had someone connected desktop with D-Link dwa-110 and laptop (as I want)? Both desktops connected to Internet via wire.
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Jan 6, 2011
My Desktop is wired through eth0 to my wireless router. The router is connected to the internet. the ipaddress leased to my desktop was done with dhcpcd. My laptop is connnected to the wireless router through the wifi card known as device eth1 and i used dhcpcd for that also. How can I network my laptop via wifi through the router to the Desktop?
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Jan 16, 2011
My wireless adapter connects to my WPA2 network perfectly, but when I run firefox it says it can't load the webpage, no matter what page I go to. Also, downloading new software doesn't work either. Any ideas please?
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May 17, 2010
I have a laptop running Ubuntu 10.04 with wireless working out of the box. I've been using it for the past few weeks because my iMac G5 has really slowed down with OS X. Today I installed 10.04 on the iMac G5 as well. However, wireless isn't working out of the box as it asks me to install the Broadcom wireless driver. The problem is, without this wireless driver, I can't install the drivers.
I am wondering if I can connect the laptop, which has wireless, to the iMac with a spare ethernet cable to give the iMac internet so it can download the driver.I'd rather not have to unplug it and move it downstairs to the router just to install the drivers.
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Apr 14, 2010
I have sendmail running on my centOS 4.6. My lamp server also runs on it. I want to send mail through php mail function. when i execute php page, which fires the mail function, it takes so much long tim1 say even 1 minute, and at last displays that message sent successfully. Suppose, destination address is [URL].... I did not get any mail there. My server is running in LAN. I checked the status of sendmail, it shows me that it ios running. when i issue "nmap localhost" it shows me that SMTP port 25 is open, but when i issue "nmap myserver" (192.168.1.20 myserver ( written in hostfile)), it does not show that SMTP port is open.
I checked the /var/log/maillog, one person in my previous post advice me to see that. There it shows that message is accepted for delivery...but i do not get any mail in my destination, even not in spam folder. One more confusion is that, in my case my server is in LAN and if I am at all enable to open the SMTP port on it, does i need to open SMTP port on my router (which connects my LAN to internet) also needs to open? I think no, because SMTP is application layer protocol, it will wrap my mail in IP packet, which router just need to forward. am i right?
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Jan 22, 2011
I have installed Centos 5 on my laptop.And I have installed Oracle databases and also VMWARE server 2 software on it.But I see no page opens in firefox browser on this laptop.I can't understand why.The laptop doesn't have internet connection. But the VMWare web access page where we can login to console and create virtual machines doesn't require internet access.I am a newbie to linux and also network issues.How to figure out what is the problem? Are there any step by step guide to investigate this issue?All the pages I open get stuck with "waiting for abc.com" etc.It never opens.Javascript is enabled for this browser.
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Jan 11, 2011
I have an old desktop computer that I installed Ubuntu 10.04 on. I also have a laptop with Windows 7 Pro which is connected wirelessly to the internet. The desktop does not have a wireless card and the modem is in another room. I have a spare ethernet cable, is it possible to connect the Ubuntu desktop to the internet by connecting it to the laptop with the cable? I'm not very good with computers.If this isn't possible, how would I go about connecting the desktop to the internet?
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Nov 6, 2009
I have a desktop PC running Ubuntu 9.10 and Windows 7, and a Eee PC 701 laptop running EasyPeasy Ubuntu 9.04. I'd like to connect the desktop to the laptop with a wired connection (eth0), then the laptop to my ADSL router using wireless (ath0).
I have a crossover ethernet cable (I bought on ebay). I have set up my laptop with a static IP address on my LAN and it uses OpenDNS.
I have added this to /etc/sysctl.conf on the laptop:
net.ipv4.ip_forward=1
Then I tried this on the laptop:
sudo iptables --table nat --append POSTROUTING --out-interface ath0 -j MASQUERADE
sudo iptables --append FORWARD --in-interface eth0 -j ACCEPT
This is a variation on what I found on other sites describing how to set up a router. I don't understand iptables very well, but I gather that the above two lines should set up forwarding so that traffic from my router to the laptop will be forwarded to the desktop, and vice versa.
But this doesn't work. The connection doesn't even establish between the laptop and the desktop.
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Feb 4, 2010
I have two linux laptops. Currently, I'm using both of them at work, side-by-side. Now the problem is, I'm connected to a wireless router, but the wireless only works on one of the laptops. So I'm stuck with one laptop that has no access to the internet. Both machines do, however, have working ethernet nic cards. So, I was wondering if I could use the laptop with the wireless connection to share the internet connection with my other linux machine and access the internet on both of them. Or as an alternative, just use the internet on the machine without wireless and be able to switch back and forth, that would increase my productivity like 30 fold.
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Nov 23, 2010
Let me start by saying that I am new to ubuntu, and that I always use forums as a last resort.
I installed ubuntu 10, and immediately after the Wifi card deected my network name, and actually connected to it, but then I opened up firefox and....no internet.
Since then I have been trying to fix this problem, and after some research I found out that my card (PCI Cwp-905) is RT2760 based, and I downloaded the linux RT2760 drivers for it.
The driver folder contained a readme file with commands you should enter to install it, and other setup files.
The problem: every command I typed in didn't work. I tried "make", and then "sudo make", but just got permission denied each time. I am now at a dead end. (Please note that I changed my directory to the folder location before doing this)
Does anyone know what I am doing wrong? If you want I can attach the driver files.
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Jun 20, 2010
I recently installed Xubuntu 10.04 on my desktop computer that had a USB wireless adapter DLink DWA-140. I didn't have to install any additional drivers to get it to work. I put in the network SSID and the password and was connected immediately. However, when I try starting firefox it doesn't load any sites. Can anyone help me in approaching this problem. I have a DLink DIR-655 router. If I should gather more information to get this problem solved then please let me know and I will do so.
Edit: Now I am unable to connect to the network. When I click the network icon in the taskbar, my home network is not visible while it is visible under another ubuntu computer I'm running.
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Jul 17, 2010
I bought a laptop today (Compaq Presario cq62) and loaded Ubuntu 10.04 on it. Everything has been running great, but the Wifi has been acting up. It connects to my router for a few seconds to a minute, and then stops all data transfer (although it still shows that I am connected to the internet). My other computers running Mac work fine. I took my laptop to another place with wifi, and it did the same thing.
The data transfer seems to stop when there is a lot going on. Whenever I try downloading new software, it gets to exactly 5% then stops. If I disconnect the wifi, and reconnect it works again for another minute. I may need to be walked through any terminal codes.
On that note, where would be a great place to read up on using Ubuntu (online book?)
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Aug 25, 2010
I installed Ubuntu 10.04 32-bit on an old desktop (1.5ghz Pentium 4, 20GB hard drive, 768MB RAM) a week or two ago, at the same time that I installed Xubuntu 10.04 on an even lower performance IBM tower server. The server functions perfectly and my other (Windows XP) desktop recognized it from the start, as did the Ubuntu desktop. However, I rearranged a few ethernet cables the other day without turning off the desktops and ever since my Ubuntu machine does not recognize my server, even though all of the devices are connected via ethernet cable to a linksys router and it connects to the internet without a problem. I'm a linux newbie - this is my first move away from Windows - and I don't know where to turn. Far more confusing is the fact that, when I boot from a LiveCD, the network is recognized and I can read/manipulate files on my server without a problem. Oh, and I briefly flirted with OpenSUSE KDE (not as noob-friendly as Ubuntu, so I'm back) and encountered the same problem.
Needless to say, booting from the hard drive is preferable to booting from CD every time
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Jul 5, 2011
OpenSuse 11.4 Asus Netbook 1000H Following other members in the forums I have installed Opensuse 11.4 on the Netbook. In the early days Ubuntu Netbook Remix worked well for me. But this has been discarded, and the "one size fits all" Ubuntu had become slow and cumbersome. So..... onto my post. Opensuse is working well. The install went beautifully.
It detected the Wireless Internet and I am able to get on line. I also need to share the Internet connection to a desktop. This is done via a small network switch. Thus far I cannot do this. I tried to use ifup to configure a static ip but this busted my Wireless configuration. I went back to knetwork manager. Then I tried to set up the wired network using knetwork manager and under IPV4 "share" the connection. But this blanks out any possiblity of a static address and substitutes dhcp. My desktop cannot ping the this dhcp address. Ubuntu had this thing called Firestarter? - from memory. This configured the system to sharing the network.
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Apr 23, 2010
The computer connects wirelessly to a router. The router is connected to the internet and that is working well. (If i use a cable connection to the router, I can reach the internet).
Why wont the wireless connection reach the Internet? It is a strong connection. It worked before wirelessly. I am on 10.04 beta, with the recent updates installed.
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Jan 12, 2010
I don't know how to share files between my desktop and laptop, each running Xubuntu (9.04 and 9.10, respectively).using LAN, but I've gotten lost going through several Samba, NFS, and FTP guides, most of which seem oriented towards vanilla Ubuntu.
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Mar 10, 2010
I had started another thread about this but had a terrible subject line. Others may have this issue.Found the answer deep in the bowels of documentation. My question now is " did version 20 mess this up for everyone with dialup"?
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Jan 20, 2011
i have a leased line ( speed 2 MB ) which we use to connect to our mail server , oracle ERP etc.. we have a dhcp scope defined as 192.168.100.1-192.168.101.254. with a default gateway as 192.168.100.90 ( which is a cisco router ) we have a pix firewall ( 192.168.100.10 ).. now the gateway passed all the request to firewall..
we have an ADSL of 4 MB speed.. ip is 83.*.*.230 from ISP. i have a proxy server ( squid ) eth0 is connected to ISP (83.*.*.230).. eth1 to LAN ( 192.168.100.79 ) now the problem is when i put default gateway to eth1 ie 192.168.100.90 the squid connects to internet via leased line.. if i leave the default gateway field empty on eth1 , the squid connects to internet via ADSL ( which i want ) but the problem is no one on the lan cant ping the squid server ( no connectivity to internet for the whole LAN ) how can i solve this problem? i want squid to connect to internet with ADSL, but if i put gateway on eth1 ie LAN squid goes through leased line which i dont want to happen.
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Dec 8, 2010
i have a problem with my new router and ubuntu 10.10. The problem is that my internet connection show me that my laptop had connect to internet but my browser can't open a website ( this problem is the same with my netbook ) to fix it always must turn it off and after on either it never makes.
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Jun 26, 2011
I just installed Linux on a partition to my hard drive and now my wireless internet doesn't work.
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Aug 9, 2010
I have one pc on which I have installed slackware and samba (fixed IP, mask 255.255.255.0) I have another PC (also XP) which also has fixed IP running XP, and I can connect that to the slackware server easily My third PC connects to the internet and gets its IP address from the Cisco router(?) that provides the IP and mask on boot up.
I tried changing the IP and Mask on the slackware server to match the internet PC (which uses a mask 255.255.254.0) but the PC mask and IP changed on the internet PC I want the PC that connects to the internet to also be able to connect to the slackware server, but I see no need for the slackware server to also connect to the internet - I will mainly use it as a file server When I worked for another company I think the IT department talked about having 2 network cards in the PC that connects to the internet
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Aug 6, 2010
I know Windows forward and backward but I am so new to linux it's just wrong. I just installed fedora (like 1hr ago) on and old toshiba laptop with a WiFi PC card. Everything seems to work fine except. My Networks connects to my home Wifi network but it will not connect to internet. When it connects the IP address isn't even close to being in the same range as my other laptops and PCs. Like I said I'm new to linux but I'm wanting to learn. Any fixes for this issue? Which linus book is the best one to read for a beginner? Other then not connecting to internet I have no complaints.
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Mar 27, 2011
Is there a way to share your evolution settings from say desktop to a laptop without backing up and importing everytime? Kinda like have an outlook pst file on a server and anyone can open it? I work at my desktop alot but sometimes at my laptop in the livingroom.
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Sep 19, 2010
Where can I find set up information in order to share internet between my Ipod touch and my laptop? Laptop is connected to cable modem and has wifi interface (so no wireless router).
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Jul 17, 2010
1. Want to share printer via Router (with print server function)2. Want to share files OSs and network map see image.Then tell me how I may achieve this is such a diverse network.note sharing printer by router is not the same as sharing printer connected to another computer, which 99.9% of CUPS and Samba guides concern themselves with. My router model is DIR-320 or ASUS RTN16 both capable of print server hosting.
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Oct 21, 2015
When I connect my Debian PC to my WiFi router my PC doesn't get internet if other devices are connected to it .
When i disconnect those devices and connect my Debian PC only then my PC connects to internet but other devices connected to it later do not get inernet connection.
When I connect my Debian PC using LAN Cable to the same router all devices work fine.
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Jun 12, 2010
i have some problems.. I set the laptop when I close the lid to hibernate and none of them really work. it doesnt "hibernate". the pc is on.. fans are on all lights are on i left it overnight and it got HOT i have to have it "shut down" when i close lid...
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