Ubuntu Networking :: Switch Won't Work With Machine
Dec 23, 2010
I got a Ubuntu machine running a local web server. It is connected to an archaic 10mbit hub, and I'd like a little bit faster network. I got a new 100/1000mbit switch connected to my router. I have 3 other PC's running off it, no problems at all. No configuration was necessary, and all existing cables worked fine.
Since the router and hub are located at the opposite end of the house, and the switch is in my PC room, I made up a new cable to connect it to my Ubuntu machine. It's just a straight-through cable, just like the other cables connecting the switch to other PC's. Okay so, when I plug the cable in to the machine I get no ethernet lights on either the machine nor the switch. But here's the kicker: I plug the cable into my laptop (running Windows 7), and it works perfectly. I restart the machine with the cable in, and get a green light. As soon as Ubuntu loads up, no lights, no connectivity. It shouldn't matter, but I'm running a static IP on the machine. I also have static IP's on the other PC's connected to the switch and nothing had to be changed.
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Dec 8, 2009
I have a program that attaches to an interface. I can run two copies of the program on two systems (each running one instance), connect it to a switch, say 1.1.1.1 & 1.1.2.1. In this configuration two instances of the program can communicate and everything is fine.
Now, to reduce cost, it want to use only one system with two nics connected to the same switch, running two instances of the above program, each instance attached to two interfaces respectively on the system. I have the following settings:
eth1 Link encap:Ethernet HWaddr XXXXXXXXXXXXXXX
inet addr:1.1.1.1 Bcast:1.1.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
eth2 Link encap:Ethernet HWaddr XXXXXXXXXXXXXXX
inet addr:1.1.2.1 Bcast:1.1.2.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[Code]...
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May 11, 2011
I am new with Linux and I am trying to figure out how to get my wireless working. My wireless LED does not switch on and it also does not work. In some threads I have seen people post some outputs of command from the terminal. I do not know how to copy this because I can not use ctrl + c in the terminal.
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Mar 10, 2011
i'm running Ubuntu 10.10 32-bit on an Acer Aspire 3050 laptop with an Atheros AR5BMB5 WiFi card.
The problem i'm having is that the hardware switch to turn the WiFi on and off isn't working right. When I hit the switch to turn it off, the light doesn't turn off, and Ubuntu just disconnects from the network and searches for more WiFi networks - it doesn't say that the WiFi has been deactivated, and I don't think it is. When I hit the switch again, it finds my network and connects to it.
The lspci -v | less command gives me the following information for the WiFi:
Code:
08:04.0 Ethernet controller: Atheros Communications Inc. AR2413 802.11bg NIC (rev 01)
Subsystem: AMBIT Microsystem Corp. Device 0418
Flags: bus master, medium devsel, latency 168, IRQ 21
[Code]....
It lists a different model of card, but it's using what I assume is the correct driver, so I don't know if that has anything to do with it. I've checked the card itself and it is a AR5BMB5.
I would like to fix it so the switch actually turns the WiFi off instead of just making it search for more networks (I assume it's not actually turning off), and perhaps make the light turn off as it should as well.
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Jul 23, 2011
Computer is a Compaq presario v2000, runs fine with windows 7 32 bit. And before that I had Ubuntu on it. I have tried everything I remember that got wireless working with Ubuntu. Also the hardware switch for the wireless does not work while running lubuntu.
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Jan 28, 2010
I'm trying to ssh into a virtual installation of ubuntu I have, named "ubuntu-x86" but I can't get it to work for some reason. I have two network cards, both assigned to NAT, on the virtual machine, but one has a static IP address, while the other uses DHCP. For some reason, the command:
[Code]....
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Mar 24, 2011
- eth0 is connected to a 'Green" interface of a smoothwall router.
- eth1 is connected to a 'Orange' interface of the same smoothwall router.
The smoothwall router is setup to forward port 80 to the address of the eth1. I can ping eth1 from the smoothwall router so there is that connection.I have a web server running on port 80 and I have opened port 80 in the firewall and made eth1 a trusted interface.In this configuration, when accessing the outside world all the traffic goes through eth0 and DNS is snappy and faster. The problem is that anyone outside can not access the web server with a timeout error.If I disable eth0 and set DNS info on eth1( DNS servers are the QWest IPs ), people can access the web server, but DNS is very poor often taking more than a minute for a look up.Is there any way to get the two interfaces to work together?
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Nov 18, 2010
I'd like to switch to dual booting on my main machine. However, I'm like, a really serious competitive gamer. I play in leagues, go to LANs and performance is my greatest concern here. If I dual boot Fedora & Windows, will I have any performance issues with Windows, while booting in Windows, if I have Fedora on the same hard drive?
I don't think there should be any issues but I would like some clarification or nformation on it. Searching for 'gaming' with Linux isn't very information when it comes to dual booting, so I was just wondering.
TL;DR: Will dual booting Windows & Fedora cause any CPU/GPU/LAG/performance issues while I boot into windows and play a game (Source, TF2, Unreal Engine Games...etc)?
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Jan 22, 2011
I have a really weird one. This may be a putty issue, or it may be a config issue in Ubuntu. I've no idea who to blame. I have four machines involved in my little issue that has me scratching my head on where to even BEGIN to diagnose what is going on. The computer I'm attempting to connect to (For identification purposes, I'll call it the main machine) is running a relatively new install of KUbuntu 10.04, stock install of openssh daemon. ufw is disabled, firewalls are off, etc, and I can prove that later.
The machine acting odd is a Win XP 32 bit running Putty. Haven't had a problem until this reload of the previously mentioned machine. A Work machine that is running RedHad of some flavour. A Virtual Machine running a headless setup of Ubunto 8.04. Now that the introductions are over, here is a quick map of the machines that can successfully connect with. My major problem is that I cannot get SSH (And ONLY SSH) to work between the XP machine and the main machine.
Work -> Main = Works
Work -> VM = Works
XP -> VM = Works
XP -> Main = Fails
XP -> VM -> Main = Works
Main -> Main = Works (IE: "ssh localhost")
VM -> Main = Works
When I try to get the XP machine to connect to the Main machine, I get an error with Putty saying:
"Server sent disconnect message
type 2(protocol error):
baad service request ssh-connection"
I've changed Putty to try using SSH Protocol 1 only, but it says the protocol isn't installed on the Main machine, which is true. I've tried setting just 1, and it gives me the error, and I've tried setting it to "2 only" and it again comes up with the error. I went into /var/log as root on the Main machine, and did a "tail -n0 -f *" and then tried to connect, but nothing relevant shows up.
As for the proof that the firewall is disabled, three of the machines are working with Synergy, I am able to swap between all three of the machines without a problem, I can get to WebAdmin from the XP machine to the Main machine, and I can open a Samba share from the XP machine to the Main machine without a problem. This sounds like a protocol issue, but I can't see anything in WebAdmin that'll put me in the right direction.
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Feb 13, 2011
I try to access my ubuntu machine via my Windows Machine (Samba Server on Ubuntu Machine). Anytime I try to access the machine it asks me for my password...I enter it but it says it is invalid....is there anyway to reset it? I have already tried to remove and purge everything Samba related and then tried reinstalling, but that still didn't do anything
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Mar 18, 2010
I have an ubuntu kk laptop connected via wireless to my mixed network (xp, win7, other ubuntu), but i can not ping said machine or connect via ssh. Internet and smb-browsing ON this machine work, as does pinging FROM it. If this was a windows machine, I'd say a firewall is in the way, but since it's a vanilla karmic install, this should not be the case (or should it?).
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Jul 24, 2010
It seems whenever i create a folder it creates the folder as untitled folder, but i can't change the folder name it just says "you don't have permission to rename item" but yet i created the folder and it is there. One thing i have noticed is that once i enter a folder it won't even let me move the folder.
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Dec 3, 2008
I have ubuntu-8.04.1-server installed on virtual machine. It works perfect. Now, I made copy of this virtual machine. I started that copied machine and it works fine, except one thing: network does not work!
I have several others VMs with freeBSD, openBSD or Windows on it, but only ubuntu machine hes network problem after coping. I tried some other VM with ubuntu on it - same problem! I downloaded VM with ubuntu - same problem.I take a look into /etc/network/interfaces file and it looks just as it should (same as before coping) but ifconfig command returns parameters for lo only (before coping there was eth0 and lo).
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Aug 28, 2010
I am trying to establish the easiest way to share a folder from an Ubuntu machine to a Windows machine.In the past I have added things to smb.conf and that has all worked fine but what I am trying to do is to figure out what the "new user" way of doing this is so that when I am helping other people I know I am getting them to do the simplest thing.I completely removed samba and reinstalled it so that I didn't have any configuration. Right clicked on a folder and selected "Sharing Options" ticked the "Share this folder box" gave it a name and a comment and ticked the other two boxes.
When I went to the windows laptop then it kept asking for a username/password and nothing worked.Back on the ubuntu machine I did sudo smbpasswd -a [username] and created a blank password. Now from the windows machine I can access the shared folder.Is the smbpasswd step still required? It's very confusing for a new user as there is no suggestion that anything other than right clicking on the folder and choosing the options you want would be required. Is it something to do with the fact that this is an ubuntu machine that has gradually been upgraded through versions and this problem wouldn't have been there from a new install?
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Feb 15, 2011
Whenever I try to "Switch from [username]..." I get locked screen with the options to "Leave Message", "Switch User" or "Unlock".If I click to "Switch User" the password box just disappears (as if one tried to unlock with an incorrect password). The only thing I can do is unlock the screensaver and resume my login session.I can not seem to switch users.Does anyone know why "Switch User" is not working?
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Dec 4, 2010
im using ubuntu 10.10 now, kernel 2.6.35-23, in the past time im believe there is too much issues appears regarding to vaio z dual vga with ubuntu that ubuntu running both vga which cost battery power, but with ma kernel now it seems running a single and a default vga only, ma laptop [URL]
[Code]..
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May 29, 2010
I can set-up an ssh tunnel from machine A to Machine B:-
fred@my-linux:~$ ssh -P myport fred@myserver.homelinux.com
I can successfully logon to machine A to Machine B.
what address and port will my tunnel 'appear' on machine B? I want to send a stream back from B to A up the encrypted tunnel, not over the open network.
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Feb 20, 2011
I have an issue with the manner in which Network Manager is configuring the network and short of ditching Network Manager I can see no solution.The issue : Getting a machine to update its machine name in the DNS serverSounds simple doesn't it I operate a FreeBSD based firewall / DHCP / DNS server, using a default Network Manager DHCP configuration the Fedora clients do not register their names with the DNS server when they obtain an address.
I have traced the communications with Wireshark and the Fedora clients are NOT supplying the PC's hostname as part of the exchange so this is NOT a DNS server configuration issue. If I uncheck the option 'Automatically obtain DNS information from provider' under the DHCP settings the Fedora clients DO register the hostname that is put into the Hostname (optional) databox. They do NOT however store the DNS server IP address or any other records defined by the DNS server.
Is there some hidden settings or is this a bug because it isn't acceptable 'DHCP' behaviour if it isn't possible to automatically set DNS server IP addresses and at the same time register the hostname during the DHCP negotiation. Before it is said I know I can use a fixed DNS IP address but am not prepared to long term, I am also not prepared to define the Fedora clients with a 'static' IP. I am similarly not interested in playing around with scripts or any other such 'frigs' to achieve what should be a standard activity - registering a host with DNS during the DHCP negotiation.
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Apr 9, 2010
I need to access a Windows Server 2000 machine using a Linux machine via KDE, but that will migrate to Gnome. The Linux user to connect to Windows machine, you should open an application 'XYZ' automatically, and only this, denying any unauthorized access. When you close the application 'XYZ' communications (RDP?) Should be terminated. Do I need a log of accesses and possible attempts to circumvent the system and access other application.
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Jul 6, 2010
I had run one script in unix machine and want to copy the results to a windows machineBoth the machines are on different networksIn linux machine trying to do the ftp to the windows machine its giving connection refused. How to chech whether ftp is running on that linux machine or not?Also tried scp and ssh , both are failing
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Sep 1, 2010
after using Gnome on my 11.3 system I wanted to go back to KDE4. So I installed the patterns and now I can choose it from gdm and it works fine. But if I also try to use kdm, nothing works. I see the kdm login screen without any users. Autologin isn't set in system settings. Any idea how to reset all the kdm settings to default? KDM Screenshot (oxygen theme):
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Jan 6, 2010
I have a ubuntu 9.04 machine i'm using as a file server. I'm able to see that machine from any XP machine, connect to it's shares play music, movies, work off of it NO problems. But i can't view the shares from a windows 7 home edition PC (garbage). AND, from the ubuntu PC, i can't see any of the other shares on network. I get "Fail to receive share list from server".
NOTE: Originally i had this machine connected with wireless card because of location. and I was able to see all shares then - both ways (still not from Windows 7 PCs though). However, when I moved to hard wire connection, the network disappeared. I've tried changing IP addresses, changing switches, but no network. I'd like to keep it hard wire. Can anyone point me in right direction or am i missing information?
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Oct 31, 2009
I have two machines, one has XP service pack2, second one has CentOS 5.3 (Linux), they are connected through crossover cable. I have configured everything fine but don't know why till now can't ping!
A. Windows machine settings as follows:
IP Address: 192.168.1.3
Subnet Mask: 255.255.255.0
Default Gatway: 192.168.1.1
+ Firewall is turned OFF.
B. For Linux machine, I will list everything stored in network files, logged as [root@localhost ~]# :
1. /etc/sysconfig/network:
ifconfig eth0 192.168.1.4 netmask 255.255.255.0 up
route add -net 192.168.1.0 netmask 255.255.255.0 eth0
route add default gw 192.168.1.1 eth0
NETWORKING = yes
NETWORKING_IPV6=no
HOSTNAME=localhost.localdomain
2. /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
IPADDR="192.168.1.4"
NETMASK="255.255.255.0"
ONBOOT="yes"
BOOTPROTO="yes"
3. /etc/resolv.conf
nameserver 192.168.1.4
search locadomain
4. I restarted network service using this command:
/etc/init.d/network start
everything is fine. When checking using ifconfig command. I get the following:
eth0 Link encap: Ethernet HWaddr 00:08:0D:EE:19:66
inet addr:192.168.1.4 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr:........
[code]....
I mean I assigned the IP: 192.168.1.4 to Linux machine (Eth0). I did everything above and can't ping till now, when pinging from windows or Linux I get a message "destination host unreachable" restarted Linux many times but same result. NETWORK CABLE is working fine I tested it.
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Mar 1, 2011
I've run into a weird problem. Two of my linux machines (A and B, both running CentOS 5.5) are connected to the same wall ethernet socket via a hub. Bothf them are configured for static IPs. The trouble is that when machine B goes offline or hits a kernel panic, machine 1 goes offline too. What I've noticed is that in this condition the "route" output from machine A does not show any entry for the default gateway either The contents of /etc/sysconfig/network-scripts/ifcfg-eth0 for machine A are:
Code:
# Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller
DEVICE=eth0
[code]...
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Jun 7, 2010
I've bought a Avocent SwitchView MM1 KVM switch, og and connected my two Ubuntu boxes to it. Toggling the keyboard and mouse between them work only when pressing the buttons on the kvm switch itself, but not when using the hotkey combination ("Scr Lk" x 2, then key 1 or 2). Does anyone knows how to debug this
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Sep 30, 2010
The dhcp doesnt work unless i put a switch or router between the ubuntu gateway and the connecting computer.
setup
Code:
Code:
Code:
Code:
Im on ubuntu 10.04. is this normal? or should i be able to connect without having a router or switch between the ubuntu server and the internal network....
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Jan 26, 2010
not sure exactly when this broke, but for some reason I'm not able to use CTRL-ALT-F1 anymore to fall back to the first virtual console.I can kill X with CTRL-ALT-BACKSPACE just fine, but I'd like to be able to get a normal shell to kill things when I've messed too much with graphical stuff.
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Mar 28, 2016
So i want to install AMD drivers from the website. I know.. I know.. Its the same old story but I play games and such so i need them...
So I'm using the --buildpkg switch and have tried every Debian/stable, Debian/unstable, Debian/testing etc.. none of them work. I get en error stating a folder is not found.
How do I build packages specific to Debian. in the --listpkg it says Debian is supported but i cannot get the %**^ %#@@$ ATI drivers ever to work right.
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Jan 7, 2010
I recently installed Linux Mint 8, which is an amazing distribution.I can get everything to work perfect, but I cannot figure out how to make the mouse wheel change desktops in compiz. Also, make sure that it only changes desktops when the mouse is over an empty desktop because I got it working once but the mouse wheel would change desktops all the time, even when I was trying to scroll through a webpage or document.
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Jan 25, 2011
I am a new user trying Ubuntu 10.Got it up and running.Can connect to the internet.Can send and receive E Mail.Can see my Win XP machine that is also on my home netwook.Can transfer files from my Win XP machine to my Ubuntu Machine but just cannot work out how to get my WIn XP machine to see my Ubuntu machine.
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