Ubuntu Networking :: Direct Connection With A Cross Over Cable?

Jan 10, 2010

I've got a Laptop with wireless broadband connection which needs to be connected to a desktop machine so that the internet connection could be shared. Both has got Ubuntu 9.1. I don't have a router or a switch. I just need direct connection with a cross over cable.

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Networking :: Connect Two Pc By Cross Cable In Ubuntu?

Dec 21, 2010

How can connect two PCs that both of them have ubuntu by cross cable?

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Ubuntu Networking :: NetworkManager Won't Connect Wired Direct To Cable Modem

Jul 9, 2011

I cannot connect my Dell Inspiron 1300 through the NetworkManager "wired" connection, when I try to go direct to the cable modem. It fails to connect.

If I connect the cable modem to my (linksys WRT54GS) wireless router, and then connect my laptop to a wired port in the router, it connects in seconds, successfully.

This has happened to me 2 other times, when I tried to connect my laptop to a client's cable modem, because my client did not have a wireless router available, in their home.

My wireless works fine. This has me perplexed. I'm using Ubuntu 10.04 LTS and NetworkManager Applet 0.8

I've tried some things to see what is going on, such as "ifconfig" "dhclient" as well as modifying the "Auto eth0" parameters and adding my laptop's MAC address, etc. Results were no fix or solution. I feel like I'm headed down the wrong road. Would someone set me straight? I have a feeling this is simpler than I think.

Do I have to actually reset my own or someone's cable modem to get this to work? I don't want to do that unless there's no other way. Is there? Let me know what commands I can or should run.

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Networking :: File Transfer Using Ethernet Cross Over Cable?

Apr 18, 2010

I am running Ubuntu Linux 9.10 on my laptop and desktop. I would like to transfer files from one to the other using an Ethernet Cross Over Cable. Is there software already installed in the bundle, that would allow me to setup network drives for each machine when the cable is connected. Also how would I setup the configuration.

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Networking :: How To Connect Two Laptops With Cross Cable In Fedora 9

May 3, 2010

I have two laptops running fedora 9 (32-bit and 64-bit on each system) and I want to connect them together for sharing files. For this I have a cross cable i.e.,a simple cable that is usually used to connect a PC with ADSL modem.

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Ubuntu Multimedia :: Get VGA Card To Support Direct Tv Out Through A Rca Cable?

May 28, 2011

I just purchased a "VGA Adapter to TV S-Video RCA Out Cable for PC Video" but it isn't working. How do i get my VGA card to support direct tv out through a RCA cable?

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General :: Connecting Two Pcs Via Cross Cable?

May 5, 2011

I want connect my two Linux PCs running in 2.6 kernel via cross over cable. To do this I have done the following settings after a Google search:

In PC1

ifconfig eth0 netmask up route add default gw eth0 (default gateway which is ip of pc2 )

In PC2

ifconfig eth0 netmask up route add default gw eth0 (default gateway which is ip of pc1 )

Then i tried pinging i could not able to connect.Are these above settings enough or any thing am i missing?

For your more information

In PC1

ifconfig output
eth0 Link encap:Ethernet HWaddr 00:16:76:A1:33:37
inet addr: Bcast: Mask:
inet6 addr: fe80::216:76ff:fea1:3337/64 Scope:Link


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Networking :: How To Cross-over Connection

Jul 30, 2010

I want to connect my laptop and desktop using ethernet cards and cross-over cable, but I don't konw how to properly configure such connection.

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General :: System Not Connected With LAN By Cross Over Cable / Fix It?

Dec 1, 2010

I have linux system which receive data from other system having linux OS in that also. but i cannot send data on other system.

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Slackware :: Share Internet Via Cross Cable?

Jul 5, 2011

i have 2 laptop first one run fedora14 and Second run slackware 13.37 can i share internet via cross Cable?

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General :: Connect Redhat To Window Xp By Cross Over Cable?

Sep 18, 2010

I have two desktop one have rhel 5 and other window xp i am trying to connect both with cross over cable.IP for windows system is IP for linux system is I am able to ping my linux system from windows but unable to ping windows system from linux.

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Ubuntu Networking :: Wireless And Cable Connection Same Time

Apr 7, 2010

I have a wireless connection with static ip to connect to Internet through a modem / router ADSL ip Lan I connect with no problems. I have a wired network in the office to work with the servers. the router is, my connection eth0 with static ip work, but Internet by Internet nothing. If i disconnect the cable i have Internet from wireless. ?? What i have to do to ,to received internet by wireless and be connected ate same time to my wired network by eth0 too.

all routers have DHCP active.

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Ubuntu Networking :: Wireless Connection Dies With No Cable

Apr 15, 2010

I recently installed the vt6656 wireless pci card that came with my zotac motherboard. I can associate with my ap and get an ip address successfully. When I disconnect my ethernet cable, however, my wireless interface stops responding (can't ping it). The box itself is in a place where I don't have a monitor connected to it so I cant see anything since my ssh session gets killed as soon as I disconnect the ethernet cable.

What would be the reason why the ehternet cable being unplugged, disconnects my wifi card as well? Does something get triggered? I did some testing with iptables, blocking the 8080 traffic to the wired interface, and noticed that the 8080 traffic also gets blocked to the wifi ip. I'm afraid that this never worked properly to begin with.

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Ubuntu Networking :: No Connection With 75ft Ethernet Cable?

Sep 21, 2010

I am trying to run a cable from my wireless router over a 75ft cat6 cable to my bedroom. I don't get any connection on my end and I don't have any other ideas. I did setup a m0n0wall box just to try. I got the network led on my server to light up in my room but nothing more than that. Lastly, I tried adding a 5 port switch in my room and then connecting that to my server and nada.

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Ubuntu Networking :: Serial Cable Crossover Connection?

Oct 13, 2010

I've been reading too much and understanding too little. What I have: Lucid laptop & desktop. Both have ethernet > hub > internet. What I want: connect them directly by the serial ports so the laptop can access the desktop's drives, and the desktop can be retired from the internet. I've got an old DB-25 null-modem, last used for multiplayer Doom. The laptop's dock has DB-9, so the connections is desktop > null-modem > Belkin DB-25 - DB-9 cable > laptop.

I had hoped this post would get me somewhere:[URL].. No such luck. When I ping 'grin.local', the connection is through the internet. If I disconnect the hub, i cannot ping.

Dunno if there's something more I should do to enable serial connection in Lucid, or if my null-modem is no longer good. I'm also rather curious how "grin.local" manages a connection through my ISP's system. These are DHCP. Shouldn't that have required the full numerical IP?

(It's nothing to do with the hub. Checked that by connecting a third box to the hub. My ISP only hands out two IP. I couldn't ping the third box.)

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Ubuntu Networking :: SSHFS Crossover Cable Connection 10x Slower In 10.04

May 2, 2010

I have a desktop running Ubuntu 8.04. I installed 10.04 on my laptop. When I mount my desktop music folder on my laptop and transfer files, they now only go at 100-200 KB/s. When I had 9.10 installed, they transferred at 1-2 MB/s.

This is the command I use to mount the directory:
sshfs matt@ /home/matt/Music/desktop/
Is there any way I can speed it up to get it back to max speed?

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Networking :: Shared Connection With Playstation 3 - Put Ethernet Cable Between Them

May 2, 2011

How do I make share internet connection with playstation 3 with Linux Mint? I have put ethernet cable between them.

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Ubuntu Networking :: Slow Wifi - But Fast Connection On Network Cable

Jan 22, 2011

I have a strange problem that I cannot diagnose -- slow wifi. About two or three weeks ago, I noticed that my wifi began to slow down dramatically. The problem is the same on my ubuntu laptop and my ipad. But when I connect directly to the router with a network cable, my connection is fine. So it is definitely a problem with the wifi signal itself.

What I have done so far:
(1) I checked all of the MAC addresses connected to my wifi. I identified my tivo box, laptop, and ipad. Nothing else.

(2) I used [I]wifi analyzer[I] on my android phone and selected an unused wifi channel (channel 8).

(3) I changed the username/password on my wifi signal. I also changed the password for my router's admin privileges.

(4) I restarted my router and computer.
None of this helped.

I am using a Netgear WGR614 wireless router.

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Ubuntu Networking :: Ethernet Connection Does Not Come Back If Cable Had Been Manually Disconnected

Jan 28, 2011

OS: Maverick Ethernet driver: tested with sky2 an sk98lin This has been driving me crazy for the last few months: if I unplug ethernet cable while my laptop is on reconnecting it sometimes does not bring the connection back.

And once ethernet is gone nothing that I try seems to consistently bring it back. Rebooting, disabling/enabling the driver, disabling/enabling NIC in BIOS, changing driver from sky2 to sk98lin, deleting connection from Network Manager, resetting the router - nothing helps. It seems to come back randomly a few weeks later. Once I used live Ubuntu on a USB stick and ethernet came back not only on a live distro but then when I rebooted also on my main OS. But when I tried that trick next time ethernet was missing in the live distro as well.

Also once I was able to revive ethernet but compiling sk98lin driver, blacklisting sky2 and rebooting. Of course next time doing the same routine did not help. The thing is - ethernet works fine with either sky2 or sk98lin and I can unplug the cable and plug it back in most of the time without any issues. But then every so often - bang and I'm stuck with only wireless until ethernet suddenly starts working again.

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Ubuntu Networking :: Have Single Cable Connection To Switch Carrying Two Subnets?

Mar 15, 2011

how i can use VLANs. as i have red on the web, it is possible to have a switch to allocate ports to a single VLAN. thus splitting subnets on a port allocation. since i have a pc running KVM, it is possible to create multiple subnets for DMZ and LAN. thus my question is - is it possible to have a SINGLE cable connection to a switch that carries TWO subnets? so that i can decide how to distribute then on the pc?

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Networking :: Cable Modem - Losing Connection - Resolved By DHCP Request

Dec 12, 2010

Running 2.6.29-gentoo-r1 on a Sun Ultrasparc 10 with a Sun Happy Meal on eth0 connected directly to my cable modem. Intermittently, with a frequency between a few hours and a few days, I lose internet connectivity. Running ifconfig eth0 indicates all is well and I have a valid IP address but I cannot even ping the cable modem's management address; pings to and eth0's IP address do get a reply but no other address I've tried does. I can 'fix' the problem by issuing


If I check the CM logs, it appears that it has rebooted itself prior to the loss of connectivity. The strange thing is that the incoming traffic doesn't seem to be affected by this, my PSAD log is full of incoming scans even during the periods when I can't connect to the net. I suspect this is an ISP problem (they own the CM);

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Networking :: Cable Modem Connection Fails - Static Route Disappears

Jan 24, 2011

Running Gentoo with kernel 2.6.29 on a Sparc Ultra 10. I'm having problems with my cable modem connection failing, so I've added a static route that enables me to log into the modem's diagnostics page at when the connection drops; my /etc/conf.d/net looks like this (with the comment lines removed).

config_eth1=(" netmask broadcast")
" via"
) dhcpcd_eth0="-N"

This works but after a period of several hours to several days, this static route disappears from the routing table.

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Networking :: Slow Outbound - Fast Outbound Cross Country Connection

Jun 2, 2011

I'm having an issue where a server in CA (1000/full) and in VA (100/full) have very lopsided data transfer.

CA -> VA with iperf shows ~20Mbps
VA -> CA with iperf shows ~93Mbps

If we change the CA server to 100/FULL, transfer speed is 93Mbps both ways.

Some tuning was done to TCP window scaling parameters, but it won't correct the issue, just improve the CA -> VA numbers to what is listed above. I will say, turning TCP window scaling OFF will lower the transfer speed both ways to < 20Mbps.

The only clue I have when looking at wireshark dumps is that the window scale going OUT would never go past 10240 (scale is 8, so 2^8 x 40bytes). In the opposite direction, the window size will go above 3MB (scaled).

It is not a bandwidth problem as iperf with UDP shows 93Mbps both ways. Local transfers (CA 1000/full to CA 100/full) show full speed both ways, so I feel it is strictly related to TCP window scaling.

RedHat 5 64-bit on both sides. Any ideas why it won't scale above 10240?

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Networking :: Can Cat5e Cable Tester Be Used For Cat 6 Cable

Apr 7, 2010

Can Cat5e RJ45 connector crimper be used for Cat 6 connector because I heard cat 6 connector is different from cat 5e connector and also same question for cable tester can cat5e cable tester be used for cat 6 cable?

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Debian :: Direct PC-PC Ethernet Connection?

Aug 19, 2011

So I have been struggling to make this happen for a bit and cannot figure it out. I want to communicate directly from my non-GUI Debian to my Puppy Linux PC. I have set up my Puppy PC for direct connection as per the instructions in the network wizard. I need to set up my Debian to do the same.

I have done the

auto eth0
iface eth0 inet static

in /etc/network/interfaces.

I still cannot ping the Debian machine from the Puppy one. Are there any other steps to the direct connection? (I already have the crossover cable in place)

I have also tried this with both PCs connected to a Netgear router. I CAN connect to the debian machine if it is on the router at the IP I assigned it and the Puppy PC is configured to use the router.

Is there a file I can edit or a process I can turn off? I think it's close I am just not sure what I am missing.

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Ubuntu Installation :: Cannot Seem To Get A Wired Connection Direct From The Modem?

Jun 9, 2010

I have been experiencing extensive networking problems with 10.04 and I was wondering what options there are for downgrading to a different (hopefully more stable) release. I cannot seem to get a wired connection direct from the modem. I don't know if its just me but I feel an operating system that can't do something simple like this (without extensive terminal codes and file edits etc) is not for me. Here are my system specs:

3.06 GHz E6600 Core 2 Duo
MSI G41M4-F (Realtek Ethernet)
500 GB Seagate 7200

I also have a PCI NIC card Intel PWLA8391GTBLK GIGABIT 1PC I just want to connect to the internet in a hassle free manner. Is there a release of ubuntu that I can "downgrade" to that will make networking hassle free? I have previously used 8.04 on a different machine with no problems. Is downgrading from 10.04 trivial? I currently do not have any important files as this is a new build and file backup is not an issue. Is there anything I should keep in mind or be aware of before downgrading?

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Ubuntu :: Force App Which Is Using A Direct Internet Connection Inherently To Connect?

Sep 14, 2010

How can we force an application which is using a direct Internet connection inherently to connect through a proxy server connection. Like redirecting the direct traffic generated to a proxy server.

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Ubuntu Servers :: Set Up As A Firewall - Direct Internet Connection Through Where Will Block

Apr 19, 2011

I want to set up Ubuntu Server as a firewall in which I want to direct my internet connection through where Ubuntu Server will block, filter, and monitor anything that come into either three of my computers using the same internet connection. Is this easy to do? sum up the steps that I will have to go through to establish this, and any relevant information, and where I might be able to find necessary information etc. I plan to use ubuntu-10.04.2-server-i386.

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Ubuntu :: Set Cable Connection To Only VLC?

Oct 4, 2010

So my problem is: With internet cable I have connected to modem which support IPTV, so I can watch it, and I can't browse. With my wireless connection I browsing, and I can't watching IPTV.

I need anwser to this if can I set cable connection to only VLC (with which I can watching IPTV), and wireless connection to other programs or only Firefox?

P.S.: I'm using Ubuntu 10.04 64 bit.

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Ubuntu :: 9.10 - No Internet Connection Via Ethernet Cable

Mar 9, 2010

I just built my first pc, installed ubuntu 9.10 and tried connecting to the net through my ethernet cable and all that happens is it says cannot find server. Do I need to install network settings & if so what & where,or should it automatically detect them? As this is my first build I am a novice but am willing to listen & learn.

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