I have 5 linux ssh servers at my office that are behind a router. How do I connect to any one specific server from outside the LAN? Do I have to port forward the router giving each machine it's own port? That seems clunky.
View 2 RepliesI 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.
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]....
Alright so i have been trying to setup a XMPP server for internal chat for a small company..now my issue is i can't get any of componants to connect to the jabberd2-router..I have done the nessessary modification of the xml files in /etc/jabberd2 but i can't figure out what is wrong. Is this a bug or is it a configuration issue (my assumtion is the later). Here are the logs:Log from /var/log/jabberd2/sm.log
Code:
Mon Jul 12 19:44:52 2010 [notice] starting up
Mon Jul 12 19:44:52 2010 [notice] id: rekahsoft
[code].....
Current: Workstation --> Wireless Router --> Cablemodem --> InternetsIPs:192.168.2.1 --> 192.168.2.5>192.168.1.5 --> 192.168.1.1>{someIP} --> InternetsSo my first link has a Class C of 192.168.2.0. I want to add a different class C also to that firstink of 192.168.3.0. The reason is my LAN traffic will be on 192.168.2.0 and traffic will be on 192.168.3.0.The wireless router can be only set up for one LAN IP, which is 192.168.2.5. Is there some way to set up a vpn or nat or bridge or something else so I can run two class C's to the router and it will pass them along? Router is the Netgear WNDR3700.
View 2 Replies View Relatedhow do I connect to a PPTP VPN (router) using Ubuntu server (Maverick/Natty)?
View 3 Replies View RelatedMy son lost his USB Wireless stick for his Computer. I had thought I heard that if you had a second wireless router, you could use it somehow to detect the wireless router you have already set up in your home (like using a wireless card)? Is this what Ad-Hoc is? Either way, can this be done and if so how? I use a WRT54Gx2 Lynksys router and have a TRENDNET TEW-432BRP wireless router and also a spare D-link DI-514. I use ubuntu 10.04, and also wanted to know if I connected one of the router to his on the LAn port could he connect msaybe through an Ad-Hoc on my local computer here? He uses XP on his. I'm a newbie to linux and networking in general.
View 2 Replies View RelatedI'm looking with some multiple WAN links on an Ubuntu router box I am building for a project.The setup I'm trying to achieve is this:
eth0 WAN Link 1 through ADSL modem
USB Modem 1 WAN Link 2 for Failover
USB Modem 2 WAN Link 3 for Failover
[code]...
I have been working with Linux for about 10 years and I have a good understanding of IPv4 networking and routing but not so much detailed knowledge of implementation or specific networking packages.
I have a Linux system running a custom-built (Linux from Scratch) distribution and using 2.6.15 kernel. My system has 4 Ethernet controllers (eth0, eth1, eth2, and eth3). I have intentionally left out support for forwarding/routing of packets as this machine is not intended to be a router and I specifically do not want it to be able to so. My intent for the machine is to function as a server to 4 different and separate networks without allowing traffic or hosts on one LAN to access or adversely affect those on the other LANs.
My main question: is there a way to completely isolate the connections to these LANs and if so, how might I achieve it, and through what packages?
I have been having some issues:
1) Default gateway. With only a single default gateway, network requests from a LAN that is not directly connected to one of the 4 NICs and for which there may not be a static route defined, may send a response to the default gateway which is on one of the LANs connected to a different NIC than the one that I received the initial request on. Is there anyway to isolate outgoing messages to only go out on the NIC that the corresponding request was received through?
2) Default gateways. I have a requirement to allow DHCP on these interfaces. It is possible that the DCHP servers on each of the 4 LANs may provide a default gateway, but I don't see how I can make use of that. I know that there is a way to configure multiple default gateways via the iproute2 package (which is what I am using) but I don't know how to make sure that the correct default gateway is used for requests that were received on a specific interface.
This may sound stupid but I've got to ask. Can I connect multiple computers running Ubuntu & run software from one computer from the other? I know how to connect using SSH & to copy files back & forth but I don't know how or if I can share programs.
View 7 Replies View RelatedMy problem is little different then what I've seen here. I get the same message after inputting network name and password. I click connect and it just pops up again I don't get it. I'm running Ubuntu 8.10 for Ppc (PS3) I get no internet connection what so ever just the same message. The message I get is " authentication required by wireless network " What do I need to do to connect wireless to my router with my PS3 using Ubuntu 8.10? It does connect with a Ethernet Wire. I am new with Linux.
View 1 Replies View RelatedI have a question. I just bought an internet router which also has wireless connection and my notebook also has wireless LAN.I was able to connect the computer to the internet router very easy. But i dont know how to make it work wirelesss under fedora linux 12...i mean how should i setup the connection to the router so i will be able to have a wireless connection?
View 4 Replies View RelatedI have a router with 2 IBM Thinkpads connected. One Thinkpad is running Ubuntu, and the other is running XP.
They connect to the router with no problems.
I installed Ubuntu on a Sharp Moebius laptop and plugged in the network cable.
NOTHING.
I have tried pinging the laptop; nothing.
I am not sure where the problem is, because my Thinkpads have no problems connecting to the router, with both Ubuntu and XP
my LAN just suddenly stopped working. we had a power outage, and it just stopped. it will still recognize the network, but it wont connect. i was experimenting with setting up a web server (trying to set it up on the standard distro). i know its not the network card (on board) because i can put in my pci card and it still wont connect. it will connect when in the live environment. i thought that maybe it had updated, so i tried to boot from a different (older) kernel. that still didn't help.
i stopped apache. i was experimenting with portforwarding at the time (i had everything else working on my server), but i could not get it to work. after this happened, i restored the original settings on my router. i had applied the settings only a day before the power outage. everything still works on another computer on the network (also running linux). (all computers run 9.10) its almost like my router won't assign me an ip address.
I have a new belkin N1 router which I tested in somebody else's flat. It worked fine. When I got home I reset it by pushing a paperclip in the hole for 10+ seconds to erase this flat's internet connection settings (username and password and stuff). After this I plugged it the computer and tried to connect to it (wired connection) using 192.168.2.1 (this is correct for that router, it is not 192.168.0.1). But the browser says it is offline and cannot connect. The lights of the router cycle, the "modem router" light blinks continuously and the others briefly come on and go off again, every few seconds. I tried resetting it again, several times, leaving it off for a few hours, leaving it on for a few hours, etc.
View 2 Replies View RelatedI recently just upgraded my operating system to Ubuntu 10.04 LTS and I can't seem to get my wireless card to connect to our new Verizon Actiontec router. I am using an Encore Electronics 802.11n Wireless USB Adapter (model: ENUWI-N), which had worked with an earlier version of Ubuntu and our old router. The adapter recognizes the SSID of the new router but will not connect with the correct WEP key or even with the encryption turned off. I have tried deleting the wireless profiles and manually re-creating them and still no dice. I have also gone to the website of the chipset manufacturer and found the latest drivers (RT2870USB(RT2870/RT2770)) for the adapter, which, according to the Synaptic Package Manager, I do not currently have installed.
Where do I go from here? Do I need to install the new drivers, and if so how do I do that?
I wanted to try Ubuntu again but have gone wayback to an old 8.10 disk because I couldn't get 10.10 to work. The install with 8.10 went fine but the internet will not connect. The network manager shows eth0 grayed out and when going in to manage the connection it says 'never'. I'm using Vista with a broadband modem connected to a netgear router.
View 3 Replies View RelatedIm trying to setup Ubuntu for my buddy. After talking it up for ages of course i get a problem ive never seen be for . He is running 10.10 (or whatever the newest is lol) and when running windows it hooks up to the internet just fine through the router. however in ubuntu it will only connect when i plug it directly into the modem. Route gives no output. Kinda weird. router is Linksys Wireless G Broadband Router. WRT54G.I dont want him running back to windows before he even gets into it.
View 4 Replies View Relatednew to ubuntu and having difficultly connecting to my wireless router.It can see the router but will not connect keeps asking for password.usb adapter is working 100% as i can connect with it using xp 64bit.
View 4 Replies View RelatedIt says my routor's name and signal strength but when I try to connect it tries for a while and then fails.
View 1 Replies View RelatedI think I have unique problem. I have a d-link DWL G510 rev c.(Austrailian) WiFi card in my pc which is detected as
Quote:
Network controller [0280]: RaLink RT2561/RT61 rev B 802.11g [1814:0302] in lspci -nn.
iwconfig shows:
Quote:
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bg ESSIDff/any
Mode:Managed Access Point: Not-Associated Tx-Power=6 dBm
Retry long limit:7 RTS thrff Fragment thrff
Power Managementff
ppp0 no wireless extensions.
Now sometimes it detects my wifi router and shows its ssid in nm-applet. but when I try to connect, it tries for 3 or 4 minutes and then fails. for most of time it even does not finds my router.
I have installed ubuntu 10.10 and am really happy. I want to sort the wireless conection out now. I have been through this forum for hours today and can't get it working. I have a Broadcom wireless card, which seems to be working fine, but I am not 100% convinced.I have attached the output of some of the commands that I have seen referred to on here.
I am using the wired connection on the same router, so the router connects fine.I click on the network icon and I see the skyNNNN router in the list. I have tried connecting to it and it asks me for my password, which I provide then nothing happens until it asks me again.I have removed the security from the router and I then see the same skyNNNN router without a
lock icon. I try to connect and it still fails.I am not using an access list on the router, so there is no issue with the mac address.
I have been using pppoe connect to Internet,now I want my notebook get on line,I bought a wireless router but Ubuntu(64-bite) can't connect to Internet through the wireless router.pppoeconf said that found eth0 and vboxnet0,but search concentrator failed and pppoeconf exited.How can I fix it.
View 1 Replies View RelatedI'm running Ubuntu 10.04LTS 64bit. The desktop running it does not connect to my router or the internet. My mac laptop does. When I installed windows on this desktop, it too could connect. But after reinstalling ubuntu, I cannot. I tried upgrading to the latest ubuntu, but that just bricks my computer. Here is my ifconfig:
Code:
~$ ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:1d:09:95:39:76
inet6 addr: fe80::21d:9ff:fe95:3976/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1492 Metric:1
[Code]....
I have just installed 11.04 alongside windows vista. I have been trying to connect my router but it keeps saying disconnected from network. I have ran all of the troubleshooting tips in ubuntu its self and everthing seems in order. is there any settings i need to change on my router or in ubuntu's edit connections programe? I managed to connect to the router once to upgrade from 10.10 to the 11.04 but even before upgrading to 11.04 i had problems connecting to the router.
View 6 Replies View RelatedI'm having a problem with my RTL8187 wireless card using NDISwrapper The problem is that I can't connect to my home router I tried everything and it won't let me Suggesting changing my security settings to WPA is not valid because my retarded brother won't let me do it, so is there anyway I can connect to this router??
View 1 Replies View RelatedJust installed ubunto 1104 and I cannot connect wirelesly to my router. When I go through the trouble shooting the recommendation is to got to the device drivers page but the link does not take me anywhere. Here is the info from the terminal.
*-network DISABLED
description: Wireless interface
product: AR9287 Wireless Network Adapter (PCI-Express)
vendor: Atheros Communications Inc.
[Code]....
I have two Ubuntu 11.04 machines connected via cable to the same D link ADSL router. how do i connect one to the other so i can see from the other computer files and transfer them using nautilus?
View 9 Replies View RelatedI have tried clean installs of Knoppix v0.6, Xandros 2.0, and Ubuntu 7.1... same issue with all. I cannot seem to get eth0 (via chip on mobo) to get/have/use IPv4. ifconfig shows only IPv6. (I cannot paste any info because linux desktop is on different box.)
End result is that I cannot get the linux desktop to connect to my lan, either with dhcp or with static ip.
I have a belkin router configured as my gateway 192.168.3.1 and nothing fancy with the setup. I have dhcp open for 192.168.3.245 thru ...254 and at most there are only 4 systems in home connecting with dhcp at any time. all other systems have static addresses.
I have two decades of desktop and lan support under my belt, but relatively small amount of command line experience and almost no history with linux (unless you count a dozen unsuccessful attempts to burn linux distro install discs on this Vista desktop).
Therein lies the start of my prob. I need to build and manage a fileserver for my home, but cannot seem to get a working installer cd or dvd to burn from anything I download.
So I said to myself, "Self," I said, "you're a tech. Build a workstaion, use the DVD that came with your Linux Bible (2008 Ed.) to install one of the linux distros on it, then download a recent, stable server distro and burn it using the linux workstation."
Unfortunately, if I cant get an ipv4 connection to my home network, I cant get out to the Internet to download any newer ISO files.
So what am I missing or doing wrong? How do I tell linux to stop trying to use IPv6 and let me use IPv4?
BTW, eth0 works just fine if I install Windows on that PC, so I know its not bad HW. Could it be a driver issue? Or do I need to use some Terminal command to turn off IPv6 and reconfigure eth0 for IPv4?
I'm trying to connect to a new Belkin wireless router, but wicd refuses to connect. I've been reading some of the other threads but they haven't made much sense as the hardware is different.
The output from the iwconfig command is as follows:
When I ran lspci it told me I had a RaLink RT2800 802.11n PCI Network Controller. On the box it says it "Supports the most popular systems" and mentions Linux. I'm using a 63 character WPA2 password, which has been copied from a USB key, so I know that is correct.