Ubuntu Networking :: Establish A Ssh Connection To Server?
Feb 15, 2010
I am trying to establish an ssh connection to my server. I have a regular ssh connection working through the command line, so I know my key works and I have the port forwarding on the router correct.
When I go to Places -> Connect to Server the window comes up properly. The only problem is that the drop down menu only has one option in it for Service Type. It is Custom Location. I have had this set up in the past and there were other options there. I chose the ssh connection and everything was fine. Now it doesn't work.
I have tried to completely uninstall nautilus and reinstall it, but that didn't work. When I did uninstall it, I uninstalled gnome-session as well, and I reinstalled that one too.
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Apr 23, 2010
I'm trying to setup PPPoE connection to establish my DSL connection, but I got
Code:
pppoe[3885]: read (asyncReadFromPPP): Session 4479: Input/output error
pppd[4104]: Cannot determine ethernet address for proxy ARP
in my sylog file.
When I do pppoe-start, it connected but I cannot ping into any destination (even to my modem in the same network). DNS servers are explicitly set in pppoe.conf and resolv.conf. Did I miss anything?
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Nov 24, 2010
What I have:
Computer: Dell XPS M1210
Modem: SpeedStream 51000 - It's SBCGlobal
I followed the pppoeconf setup instructions.
cracker@Jack:~$ sudo pppoeconf Plugin rp-pppoe.so loaded.
RP-PPPoE plugin version 3.8p compiled against pppd 2.4.5
I then asked it to start the connection.
cracker@Jack:~$ sudo pon dsl-provider
Plugin rp-pppoe.so loaded.
RP-PPPoE plugin version 3.8p compiled against pppd 2.4.5
Checked connection information and got this.
cracker@Jack:~$ ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:18:8b:dd:6e:cb
inet6 addr: fe80::218:8bff:fedd:6ecb/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
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Jan 3, 2011
I have just installed Google Desktop. When I do a search it says: Unable to connect Firefox can't establish a connection to the server at 127.0.0.1:38552.
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Jun 24, 2010
Working in CentOS. Want to have drag-and-drop SCP access to another system.
Opened up the file manager (nautilus) and went under File -> "Connect to Server". Filed in the information, hit connect. The connection will sit forever and will never properly establish. It creates an icon on my desktop, but noting else.
If I go into terminal, su to root, open nautilus and then repeat the process as a root user, then it works successfully. Connection established after I trust the remote host. File transfer works fine.
what is occurring when I attempt to connect as my normal user?
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Feb 7, 2011
I am trying to install tomcat (apache-tomcat-6.0.24) on a Redhat machine.Post installation, I find the url: working fine untill I click on 'Tomcat Manager' where it gives me the following message: Failed to Connect.Firefox can't establish a connection to the server at localhost:8080.Though the site seems valid, the browser was unable to establish a connection.
* Could the site be temporarily unavailable? Try again later.
* Are you unable to browse other sites? Check the computer's network connection.
* Is your computer or network protected by a firewall or proxy? Incorrect settings can interfere with Web browsing.
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Apr 3, 2011
I am trying to set up, I am having problems understanding what steps I need to take but have done the following on recommendation of help from linux forums but am not getting anywhere with what I have done. PC:
Laptop Dell latitude D610
Ubuntu Gnome 2.26.1
I currently have a wired connection to my laptop but am trying to set up wireless, I have put the antenna on the router and have a wireless network showing called NETGEAR, amongst others, which is my primary router name so i'm trying to connect to that but the actual wireless antenna is on the switching hub. For all intents and purposed assume I am a complete newbie with ubuntu and linux command line stuff, I know basics like pwd, ls and so on but need a good bit of help trying to do this. When I click on this wlan network NETGEAR I get asked for the password, on the bottom of the switching hub is a code for WLAN and I put this in, it then asks for a password for a default keyring, which I do not know. How do I find this out?
But I am still not sure what I am supposed to be doing or looking for to resolve this connection problem, not only am I not a network expert I have no knowledge of linux either and steps to follow to establish a connection.
[Code]....
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Jul 18, 2011
I'm using Ubuntu for almost two years and everything has worked well till now. One day I have reinstall ubuntu in my computer, but then something went wrong. I couldn't anymore establish my internet connection. I have tried everything but nothing helped. I even reinstall my ubuntu multiple times but there was no efekt. Even when I installed Kubuntu or an older Ubuntu 10.10, there was no internet. I'm also using Windows 7 but there is always a internet connection. I didn't change any hardware on my computer, only a new AMD graphic card. I'm using wired optical Internet 10/10 MB.
[Code].....
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Jan 12, 2010
I have a strange problem where I can connect to any site except for [URL]... with the latest Firefox and Google chrome both can connect to [URL]... Using Ubuntu 10 not 7.10 FireFox: Unable to connect Firefox can't establish a connection to the server at [URL]...
* The site could be temporarily unavailable or too busy. Try again in a few moments.
* If you are unable to load any pages, check your computer's network connection.
* If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.
Google Chrome: This webpage is not available. The webpage at [URL].. might be temporarily down or it may have moved permanently to a new web address. More information on this error Below is the original error message Error 2 (net::ERR_FAILED): Unknown error. Really Strange is that every other site is fine?
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Sep 25, 2010
Since a few days ago, I have too much problems to connect.When I try to connect to Internet with Firefox, the following message is printed out (, most of the times):Code:Unable to connect Firefox can't establish a connection to the server at URL...
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Nov 3, 2010
I've installed apache application server v7.I get a problem when I type the command localhost:8080
Unable to connect Firefox can't establish a connection to the server at localhost.
# ps ax |grep tomcat
9463 pts/2 S+ 0:00 grep tomcat
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Mar 14, 2010
when sending a message some recipients get it while others don't and i receive this mail every time an e-mail has failed to be received by others:
[Code]...
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May 3, 2010
Dual boot Vista Basic and Ubuntu 10.04 on low spec PC. I can connect to the wireless when I am next to it. I move to the room where the computer is normally used and I lose connection. I can still see it but it fails to establish a connection. Okay, sounds like it's just too far way but when I re-boot and use Vista, it works fine (1 or 2 bars, but it works). Is this a driver issue? Anything I can do apart from move my wireless router?
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Feb 5, 2011
I am kind of new to linux and have installed the lucid lynx ubuntu distro (10.04) and then "upgraded" it to ubuntu studio but it still says is the lucid lynx. I got a Samsung Q430 laptop with the Atheros AR9285 wireless adapter.I have everything up and running EXCEPT my wireless card. The wireless card DOES work, it does see all the connections available, but when I choose to connect it does not, and keeps asking for the password.
Weird thing is that when I use my samsung galaxy tab as the wireless adapter for its 3G signal, it does seem to work fine (although really slow). I have tried looking for a solution, some say to just install the drivers, but ubuntu does not recognize anything to need a driver except the video card. I have installed linux-backports-modules-wireless-lucid-generic I have also tried the bleeding edge drivers.
After a while of experimenting by myself I came with the following, somewhat rudimentary. I managed to fix the problem by installing the windows wireless driver utility. Here is a tutorial on how to do it. So I just installed it, went to system/administration/windows wireless drivers and just installed it. Downloaded the file from here [URL]. It may not be the best way to fix it, but it does work. Still if you can use ethernet, don't hesitate to do it.
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Feb 3, 2010
I installed required updates on my linux installation (ubuntu 9.4) I am now unable to access my localhost, and get the following message from my browser: Failed to Connect Firefox can't establish a connection to the server at localhost. Though the site seems valid, the browser was unable to establish a connection. I checked my hosts file which has the following information:
[Code]....
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Feb 12, 2011
I have had long term access to a networked HP Photosmart printer but now I get the following message:
Unable to open device hp:/net/Photosmart_C5100_series?ip=192.168.0.161.
when trying to access it.The ubuntu desktop is wired to the router as is the printer and another iMac wirelessly can still print to the HP. HPLIP status shows the icon for the printer but with a red x indicating no connection to it.The only recent network change was the removal of another router from our network. (service is DSL via a combo modem/router from service provider which previously was connected to a Dlink router which has now been removed from the chain b/c was redundant to the modem/router)
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Jan 27, 2011
I'm trying to connect to a hidden wireless network in ubuntu through the terminal but i am unable to do so.
I first tried using ifconfig,iwconfig and dhclient initially but i am only able to get an ip address without the default gateway and dns server addresses which i normally get through the network manager applet.
Then i tried using cnetworkmanager but failed miserably again i keep getting this error
Code:
Another applet is running: Bus name already exists: org.freedesktop.NetworkManagerUserSettings (pid 1851)
Then i used nmcli available with the network manager package. i was able to establish a connection only with the connections showed in the list. i use a hidden wireless network. i am unable to connect to the hidden wireless network using nmcli without actually creating a connection from the network manager applet.
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Aug 3, 2011
My desktop computer, running 11.04 (fresh install) sometimes can't establish a wired Ethernet connection. Sometimes when I boot, it keeps trying to establish, but with no luck. I keep trying to choose "Auto eth0" from the networking menu, but still, it doesn't succeed. If I reboot, it sometimes works. I can't establish a connection about half the times that I boot.
The computer is connected with a cable to a router ("Belkin Wireless Pre-N router"), and the router is connected with a cable to a cable modem.I've been using Ubuntu for a while, and I've had a problem for the past few versions (since around 10.04)? I thought that it might be some old issue that got resolved, so I did a fresh install of 11.04 today, and still have the same behaviorI'm willing to try things next time I can't get a connection, but don't know what.
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Apr 22, 2010
I`m trying to establish pppoe connection from Linux clinet to Win server.
I get in ppp.log message:
As I see in this log server gets IP address to client but after connection terminates.
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Feb 19, 2010
I am trying to deploy Kerberos and LDAP so users will be able to login in to a server on the edge of the LAN, and afterwards be able to establish a SSH connection to all the computers in that LAN without the need to type any passwords, and without the need for me to manage SSH keys [beside the SSH keys on the login server] and local user accounts.
1. When i create the users in OpenLDAP i use a template that i created by reading documentation from the Internet. In the template one piece of information that is neede is the UID. Is there any clever way the keep track of the numbers so i do not assign the same UID to two users, besides using a pen and paper?
2. For the users to be able to establish SSH connections between the computers, the host is going to be added to the keytab like this: ktadd host/client.example.com Is is possible to replace client with something genric so i do not need to mange these keytab files between the hosts?
3. Users will be logging on the the server on the edge of LAN by using SSH keys. How can i configure the setup so the users will recieve a ticket automatically when the logon without executing kinit and without entering a password, just by having a valid SSH key?
4. krb5kdc is running on all the network interfaces in the server i want it to only run on eth1, how can this be done?
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Aug 22, 2010
I have an issue relating my broadband connection, which I am not able to solve. I hope and wish, that I would find some way out here.
Some introduction: I am using Dell Inspiron (i3 processor) laptop, which I recently bought. I have win 7 preinstalled in it. In win 7, the wired broadban connection (Airtel connection) is working fine and have no issues.
I have been using mobile GPRS(BSNL, Ltd) through bluetooth, and that have been working fine. But today when I tried to connect through landline connection, it didn't workout. But the bluetooth connection is still fine. When I tried to do the connection manually through Network Manager, it is not taking the MAC Address. Till now, after installation, I have not updated my OS.
I surfed the net and tried some commands, whose results I am posting below.
From a post I found out, that I should change my duplex settings (from 100 full to 10 full), but I could not get much. The corresponding commands and output,
I have posted below:
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Feb 18, 2011
I recently installed linux Fedora 14.... how do i have internet connection via my mobile modem...? i conect via usb
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Mar 24, 2010
I have Fedora 12. I just wanted to know that for demonstrating a DNS mechanism between clients and a host, how to establish a domain ? Do I have to configure an Apache server ?
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Feb 4, 2010
Running Linux Fedora 10 on an Intel Core 2 Duo PC. Runs great. We are trying establish VPN between a client and server on the same LAN. The network is a standard fast ethernet, run great. We are trying to install OpenVPN server, but having a little difficulty. Key and certificate builds seem to execute without a problem. But when we try to start the service we get [FAILED]. I've attached a copy of our procedure.
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Nov 20, 2010
I have set WAN to 'bridged' mode for my D-Link DSL-G604T so that individual devices can connect directly to the internet.
A problem I now face is not being able to connect a computer running Ubuntu 10.04 LTS to the internet via DSL.
The computer connects to the D-Link DSL-G604T router via wireless network connection - which is established, but I am unable to connect to DSL and I don't know why. The DSL connection doesn't even list under the network icon at the top right.
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Nov 12, 2010
I've got an Expect script that establishes a ssh connection to the iLO interface of a server. Problem is it drops me back to the local terminal and I can't enter commands to be executed on the remote host. How do I get it so it logs me into the server then leaves me connected to it?
Code:
expect -f - <<-expect_script_end
spawn ssh -o StrictHostKeyChecking=no $user@$host
match_max 100000
expect "*?assword:*"
send -- "$pass
"
send -- "
"
expect eof
expect_script_end
The ssh server running on the iLO interface appears to be sending eof's which is causing expect to exit. How can I get it to ignore them?
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Oct 17, 2010
I just got an error message and i have no clue what it means.Error: Unable to establish connection with FAM.Do you have "FAM" or "Gamin" installed and running?I installed the net cd of Lenny and it is up to date so I don't know whats up.
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Oct 29, 2010
Getting an error while connecting to remote desktop using rdesktop.
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Jul 9, 2011
I want to transfer files from my laptop to my desktop remotely over the net. Both these computers access net via different service providers and have dynamically assigned IP addresses. If I know the IP address, I can use ssh to accomplish my task. However if I don't have physical access to the desktop, I cannot know the IP address. Is there a way by which a the desktop sends its public IP address to me so that I can establish ssh connection ?
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Feb 25, 2009
I just set up vsftpd, from the localhost it works just fine, but when i try to acess it from the network, via firefox or the osx "connect to server" i get a message can't establish connection.
I 'm a new to setting up servers, so maybe i just havent set any neccessary paramters for anonymous login.
My vsftpd.conf looks like this:
Code:
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