Ubuntu Networking :: Network Not Visible In Dialogue Boxes
Oct 12, 2010
I've set up Samba under Ubuntu for windows SMB file sharing (currently unauthenticated but soon to be backed off against A.D.) This is great within Windows where l folders are available as mounted in all applications but from my Ubuntu desktop and Ubuntu laptops, we can only access network folders and files from the File browsers and bookmarks one finds in the "Places" menu. Our issue is that most (but not all) dialogue boxes don't have any options for viewing non-local files and folders. i.e. when I'm in my web browser and I go to upload a file from our local network file server to an internet location, the "Open" dialogue box cannot see any of our local network locations.
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Aug 11, 2010
i've been an intermediate-level linux user for some years, and now i'm supposed to set up and manage a small network for our research group. we have 5 linux boxes with ubuntu 10.04 (actually i'm installing everything we need in one box and will attempt to clone the others with clonezilla). i've 2 questions:
1) i'd like to manage all user accounts from one pc (server? so to say), so that every user can log in any of the 5 machines with the same passwd etc. what is the best/easiest/most stable application/protocol to manage this?
2) is it possible to create a network logical volume, based on the individual HDs and visible to all boxes? something like a RAID0 over ethernet?
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Oct 23, 2010
I can't think of any obvious reason. I have two Ubuntu 10.04 machines. Each has a two disc RAID array for redundancy. Both are on my class C network (192.168.1.3 and 192.168.1.5). Both can access internet through router and I can "reach" each with a windows laptop (I can ping, login via SSH, reach webmin, SAMBA, etc). However, all the sudden, I cannot reach either linux box from the other linux box. It fails "both ways," meaning I can neither ping, login via SSH, use a SAMBA resource or in any way see the "other" linux box from one. This seemed to occur about two weeks ago (maybe after an update?). I've been using Unison to sync the RAID arrays - but not, I cannot sync at all. The only thing I could think of is to check hosts.deny (and allow) which are distribution default (unchanged)...
If I traceroute to the router, I get "1 XXXXX (192.168.1.1) 0.543 ms 1.217 ms 1.204 ms." However, if I try it to the other linux box, I get "3001.294 ms !H 2001.280 ms !H 3001.264 ms !H" which evidently means host unreachable. So it can get to the router (which has the windows box which can see both linux boxes). I just can't think of any reason why/how this could happen? Not sure how what is wrong with hosts file (I have made no changes and it accepts ping/ssh, etc from windows machine). Any ideas would be greatly appreciated.
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Mar 29, 2010
I noticed tonight when I go to Places, Network, it will bring up an icon for Windows Network, and I can drill down to my Windows box. But I can't see the other Linux box (a laptop running Kubuntu), and the same behavior occurs on the laptop when trying to view the Linux desktop. The laptop is connected wirelessly, if that makes a difference. Each box can ping the others, but I don't yet know how to browse one Linux box from the other Linux box.
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Jul 27, 2011
I run a server that is connected to several other boxes in a private network (192.168.0.0). I have had no problems previously, but upon a reinstall of Debian squeeze I have no connectivity to the private network: a ping of other addresses on that network fail. Ping and connection to outside world is fine. This box is configured similarly to another on this private network which connects successfully. I have quadruple-checked all my basic information. I post my ifconfig below of the malfunctioning device, then the ifconfig for equivalent nic on a box connected succesfully to the private network.
Questions:
1.Could it be a cable problem? (I don't see how since the cables have not been changed I do not believe since my reinstallation).
2. What about the difference in the last lines of eth1 below and eth2 of the successful box. Is it significant that the bad eth1 reads Memory:fc3a0000-fc3c0000
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Jul 13, 2010
I'm having a bizarre problem with FTP transfers from my CentOS 5.3 boxes, All of my CentOS boxes appear to be limited at ~10kb/s when connecting to any FTP server outside of our network. We have no network infrastructure which would cause this, however when I use a windows based machine it is able to connect fine.
I took my laptop running Vista, and rebooted it onto a CentOS 5.3 LiveCD, and same issue.
I have checked our iptables, cleared the rules, removed the kernel modules, checked CBQ/TC it looks like nothing is limiting this. Also, other protocols work fine. Both the windows and linux boxes used passive transfers for it.
Is there anything other than iptables/CBQ which would be on a out of the box install of CentOS I should check? Is there any kernel settings for NAT connections which may cause this?
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Jan 24, 2010
I'm trying to share some folders over the network, but the shared folders are not visible on another computer. This is through double clicking my computer from the Network list in Nautilus. However, I can access the share by typing the full address(<computer name>/<share name>) in "File > Connect to Server...".Since I can't type the address manually from my blu-ray drive, I need to get the shares to show on the network. What is wrong with my settings?
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Jan 24, 2011
Since I installed ubuntu 10.04 I dont see my eth0 card in System->Preferences->Network _connections. Everything works fine but it puzzles me. In ifconfig iI just see the eth0, networking seems to be working fine, but it keeps puzzling me. Adding theinterface is no solution: add it and it doesnt show again
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Feb 13, 2010
I am using Ubuntu 9.10 and I've installed a Samba Server. Unfortunately I can't see any Linux/Unix/Mac systems in the networ environment. Only the Windows computers are visible.
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Jul 23, 2010
I have a weird problem that I can't find the answer for in the forums or docs. I can see the wireless network in Network Manager, but it is grayed-out and inaccessible. Other wireless networks are white and I can click on them and connect to them (or could if I knew the password).
My work computer, an IBM ThinkPad T43 running Win 7, connects.
My personal computer, a Dell Latitude C640 running Ubuntu 10.04, sees the network as grayed-out and therefore I have no option to connect to it.
I have tried the following:Checked for hardware drivers - the system says "No proprietary drivers are in use on this system"
Verified that the network security settings are the same on both my work and personal computers: WPA2-Personal
Why can I see the network but it is disabled/grayed-out?
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May 22, 2011
hello guys, i had a problem regarding my network icon missing. two days a go it just work fine and I'm using this desktop pc almost 6 months with no problem.just yesterday the network icon suddenly disappear.I've put the notification area it doesn't solved my problem. well this is odd, because when I go to the terminal and "nm-applet" their the network icon appears from where it is and became visible BUT when I close the terminal/terminate the terminal it disappears. HOW CAN I PUT BACK THIS NETWORK ICON VISIBLE AND PERMANENTLY VISIBLE?
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Jan 19, 2009
I have a Mandriva linux box connected by cable to my router. When I stream audio using this box it crashes all the wireless computers on my network. There is no effect on wired computers. All but the one computer are windows (xp or vista). The affected wireless computers are not able to even find my wireless network. I have to reboot the router to get them online.
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Aug 26, 2010
I am using Network Manager to connect to a VPN server so that I can access some of the computers on the local network there. When I'm connected, I have two problems: All my internet traffic goes through the VPN. My computer is no longer visible on my local network. I waste a lot of time connecting and disconnecting the VPN. Is there any way I can set up a VPN so that I am still on my local network and only requests to 172.x.x.x go through the VPN. I suspect it can be done with iptables, but all the info about iptables goes WAY over my head.
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Aug 10, 2010
While in a web browser I'm trying to attach a file which resides on a network location. The file dialogue doesn't allow me to browse any network location. I've mounted the volume and added locations to favorites. I've also tried entering an smb:// path. This only happens in browsers, both FFnd Chrome, some examples would be attaching a file in gmail, yousendit, etc. I can browse and work off the network normally in desktop apps.
I'm very new to *nix.
-MacBook Pro
-2.4Ghz, 4GB RAM
-Nvidia 8600M
-Ubuntu 10.04
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Feb 21, 2011
i have 3 comps(running ubuntu 10.04) and a laptop(running vista sp2). i have installed samba on all ubuntu comps. i have a printer attached to one of the comps and it has been shared also the internet connection on that comp has been shared. all the computers are connected using lan cables through an ethernet switch. i also have a wireless router which is connected to the ethernet switch.
I am able to view all the comps on the network except the laptop running vista. all the desktops are visible on the network and are able to print and share files on the network and also connect to the internet.the laptop running vista can connect to the internet but its not visible on the network and nor can it share files across the network or access the printer.all the systems have a static ip.
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Jul 6, 2011
I'm setting up an Ubuntu-based kiosk for my organization, and I can't seem to ping it by its hostname. The network is an Active Directory domain.
I tried editing /etc/dhcp3/dhclient.conf (I filled in the hostname where it said <hostname>), but no dice.
I also tried editing /etc/network/interfaces (the machine authenticates via DHCP but its network configuration is manually specified -- can't have users messing with NetworkManager):
Code:
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
hostname <the computer's hostname here>
Finally, I tried joining it to the domain using likewise-open, and while it shows up in Active Directory, I still can't ping it.
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Feb 7, 2011
I've got a Linksys WRT54G router with the latest firmware. I've got an HP laptop connecting wirelessly and my main box connecting wirelessly with a Linksys WMP54G card. (As an aside, I used to have another box too with the same wireless card). Both are set up with a static IP. Both can access the Internet just fine. The router is on the main floor. My main box is in the basement. Both boxes are running fully patched versions of Slackware64 13.1. sshd is running on both.
I like to ssh into the other box when there's a security update or to copy a file from one computer to the other, etc. The problem is that I can't do that all the time. Even if the laptop is connected to the network and accessing the Internet, on my main box ssh will still "say ssh: connect to host ***** port 22: No route to host". It is my understanding that if I ssh in, it is accessing the other computer directly and not going through the router. What would cause this? Even if I bring the laptop within four feet of my computer, it still can't connect.
There doesn't seem to be a rhyme or reason to when it will connect and when it wont. Sometimes I can access it just fine then about five minutes later I can't.
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Apr 29, 2010
I want to share files between my desktop box and my laptop either by my mains-LAN or by ethernet cable and cannot find anything on the forum to point me in the right direction. There is plenty of information to help with the installation of Apache/LAMP and the like. But is this what I need? Will I need to create logon IDs to the desktop to share files (and even the printer?).
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Dec 16, 2010
New to 10.04, not to Ubuntu. Fresh install of 10.04, recommended proprietary nVidia driver installed because text rendering in Firefox is terribly with the 'standard' non-proprietary driver.Also new to Vodafone / Huawei modems. My previous experience with a Vodafone modem (type unknown) was with 9.04 when I helped my daughter-in-law fixing her Windows computer. It worked out of the box from the live CD and she is now a happy Ubuntu user
Optimistically, I recently bought a Vodafone K3765 modem as backup for my standard internet connection. I eventually got that to work after installing the USB mode switcher. So no it works out-of-the-box experience here Problem:The network manager (I assume that is what it is called; little antenna with signal strength indicator is not visible in the panel (right top). It is there but it's only one pixel or so wide (at occasion a one pixel wide vertical line occurs at the position where it is supposed to be). So when I want to connect I have to click a number of times in the panel till I hit it and the menu shows. Once it is visible, it will stay visible till the user logs off.
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Apr 23, 2011
I have Wlan available but I cannot connect to itI don't have wire network available so I can't connect to internet at allI'm writing this trough dual boot (win)how to make network manager visible so I can choose witch Wlan connect to?SOLVED:Quote:Originally Posted by gandaranif the network manager panel icon is missing all you have to do to get it back is right click on the empty panel area where you want it to bechoose add to panel and select the notification area applet and click add.
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Jul 15, 2010
I have had a bit of experience with previous distros but I am pretty much a newbie. So I setup 10.04 but I can't get my net to connect. It's working fine on Win7 (posting from it). It's a dsl connection. I use an ethernet wire to connect to the net.
I opened terminal and used the 'sudo pppoeconf' command and followed the instructions. This is how I used to get my net working on previous distros but it dosen't seem to work in 10.04. The terminal says that my connection is active but it isn't. The network manager icon isn't visible on the top panel.
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Jul 15, 2010
On ubuntu 10.4, I upgraded my laptop from a fluky Broadcom 4322 wireless card to a yummy Intel 5300. The system recognized the card as far as lspci and lshw were concerned, but it was disabled. I used "sudo ifconfig wlan0 up" to get it active, removed wicd and installed nmanager, and I could access the internet via web browser and mail.
The issue is that other programs (kismet, wireshark, zenmap, anything that I use at my job) do not recognize the new wlan0 interface at all. I've uninstalled completely from synaptic then reinstalled things like wireshark, but under interfaces I get nothing, not even eth0. Nothing looks askew in syslog or the relevant lshw/lspci searches. Does anyone have an idea on this? The Intel 5300 is rolling along without a hiccup so I doubt the issue is there
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Oct 18, 2010
Ubuntu 9.10 So I have four boxes. One has all the users on it and it is the nfs-server. The other 3 are nfs-clients. I need to be able to share all users between the boxes. I have mounted the /home directory from the server onto the three clients as well as the /usr/local folder, however I am still unable to log in as anybody but the root on the clients.
I am not even sure how to search for this (I keep getting results on how to mount the home directory, and information about adding multiple users to a single box).
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Apr 23, 2010
I have a box with 6 Ethernet ports. One is the main connection to the box, and the remaining are for connecting to one host each (1-1, ie, 5 different boxes connected to each of 5 ports on the box). I setup a static route to each of the hosts, and it worked. But, now it just doesn't work. There are no firewalls, etc.
Box_A: 10.2.1.200 (going to the switch to outside).It has 5 other ports: port1 (10.2.1.11) <----> Host1: 10.2.1.20 port5 (10.2.1.15) <----> Host5: 10.2.1.25 If I do, ping -I eth1 10.2.1.20, from Box_A it doesn't work. But, it used to work.
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Apr 27, 2010
I have configured a samba server where I have configured it for /mnt dir to be exported/shared. When I verify this share, I see mnt dir but I want the content inside the mnt to be visible or chroot into mnt directly.
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Jul 12, 2010
Problem with this bizarre Wifi problem. I have searched and searched and cannot find a solutions. Unfortunately this affects 3 computers in my household. And as the resident amateur Linux tech support/Linux advocate, I will be held responsible if I don't figure out how to fix this quick. After some extensive playing around, this is the situation. I have this problem on Ubuntu 9.10, Mint 9 (based on Ubuntu 10.04) and PC Linux OS 2010.:
- About a week ago the wireless network I use stopped working. There was a major power failure on our block during this period. No idea if there was a connection. Since then, I have been able to connect, but I am no longer able to access the internet. I can ping my own IP and my router, but no website (niether by IP not URL).
- When I booted my computer in Windows, it connected to the internet. My neighbours (whose network I am using) are also windows users, and are able to access the internet without problems.
- I have found exactly the same problem on my wife's laptop running Ubuntu 9.10 and on a Live CD of PC Linux OS 2010
- I am still able to log into all other wireless networks without problems.
I am perplexed. Is it possible for a wireless network to prevent internet access to linux computers? And inadvertently? I tried disabling IPv6 (which wasn't being used anyhow), but this didn't make a difference. I also tried manually entering an IP address and other network details into the network settings.
[Code]....
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Oct 27, 2010
I'm trying to set up a mini grid of linux boxes, but am quite new to setting linux up.I've installed fedora 13 on one and would like to be able to SSH in to it. All boxes are within a university network (under a proxy if that makes any difference?).I can mount a shared disc easily enough, and SSH out to other computers (that I didn't set up myself),I've tried following a few threads, temporarily taking down firewalls, disabling SELinux, messing around with iptables but can't seem to manage it.
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Feb 7, 2011
i am not able to set up a crossover connection between 2 CENTOS 5.5 boxes.
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Jun 27, 2010
When I install lucid my wireless worked out of box, but for some reason it has stopped working.wireless Network is gray,by that I mean not active.
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May 3, 2011
I've been searching around the internet for the last two days trying to solve this problem, because I know how much everyone hates people who ask questions without looking first. Alas, I haven't found anything.
I have Ubuntu Server 11.04 running on a spare machine, which I've configured and got running just fine. I am trying to set up an IRC server on this machine for some friends of mine using UnrealIRCd. I have built and configured the server program, and am able to run it. Anyone who is connected to my home router (wirelessly or hard-wired) can connect to the server while it is up using either the internal IP, external (router) IP, or the dyndns.org name which is tied to the external IP.
However, anyone outside my home network cannot connect to the server. I DO have ports 6660-6669 forwarded on my router (IRC standard port is 6667). When connected to an external network, I cannot join the server by using the external IP, nor the DNS name.
I also have OpenSSH set up on the server machine, and have port 22 forwarded on my router. I CAN ssh into my server machine from within my home network, and I CAN ssh into my server machine from an external network.
Strangely, I can successfully ping my DNS name from inside my network, but not from outside. This doesn't make sense to me considering I am able to successfully ssh into the machine.
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