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  • problems establishing ssh connection

    - by Superbyte
    since two days I am facing a really weird problem. I have receantly installed ubuntu server 14.04 LTS on a workstation. It has a fix IP address, which I can successfully ping from other computers in the network. But when I try to establish a ssh connection from a windows computer via putty I get some strange errors, which I cannot fix. The Problem is that putty takes a really long time trying to establish a connection. After about 10 seconds I get the following error: Network error: Software caused connection abort But when I click the Restart Session option a several times after putty shows the error message, I can login in. But now comes the other problem. When the login appears on the putty console I type in the user, but it really takes a long time until I can type in the password to login. This is what I already tried: sshd: ALL in etc/hosts.allow commented line session optional pam_motd.so in etc/pam.d/login and etc/pam.d/sshd configured the firewall with: sudo iptables -A INPUT -p tcp --dport ssh -j ACCEPT checked if ssh server is listening on port 22 UseDNS no in etc/ssh/sshd_config I hope someone can help me, because this problem is really annoying. Thanks in regard

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  • Wired connection not being recognized

    - by maxifick
    I'm on Ubuntu Maverick (10.10). I've read a few threads regarding wired connection problems, but haven't found a solution yet. The problem appears after I connect to a wireless network. When I disconnect wireless and plug in an internet cable, the wired connection is not recognized at all. Even the socket appears dead (there are no diodes flashing). The only solution so far seems to be restarting the computer. Network Manager then tries to connect to a Wi-Fi, but the wired connection is listed and working. I've tried sudo restart network-manager, but that doesn't solve anything. After a while, available wireless networks start appearing, but the wired still doesn't. Any ideas? Thanks in advance. Edit: Here is the dmesg output after switching off Wi-Fi and then plugging the internet cable. [18200.623543] Restarting tasks ... done. [18200.648422] video LNXVIDEO:00: Restoring backlight state [18200.707580] sky2 0000:02:00.0: eth0: phy I/O error [18200.707715] sky2 0000:02:00.0: eth0: phy I/O error [18200.707819] sky2 0000:02:00.0: eth0: phy I/O error [18200.707922] sky2 0000:02:00.0: eth0: phy I/O error [18200.708025] sky2 0000:02:00.0: eth0: phy I/O error [18200.708127] sky2 0000:02:00.0: eth0: phy I/O error [18200.708229] sky2 0000:02:00.0: eth0: phy I/O error [18200.708332] sky2 0000:02:00.0: eth0: phy I/O error [18200.708824] sky2 0000:02:00.0: eth0: enabling interface [18200.709587] ADDRCONF(NETDEV_UP): eth0: link is not ready [18202.662422] EXT4-fs (sda9): re-mounted. Opts: errors=remount-ro,user_xattr,commit=0 [18203.324061] EXT4-fs (sda9): re-mounted. Opts: errors=remount-ro,user_xattr,commit=0 [18211.193137] eth1: no IPv6 routers present [18212.844649] usb 5-1: new low speed USB device using ohci_hcd and address 5 [18213.017235] input: USB Optical Mouse as /devices/pci0000:00/0000:00:13.0/usb5/5-1/5-1:1.0/input/input16 [18213.017499] generic-usb 0003:0461:4D17.0004: input,hidraw0: USB HID v1.11 Mouse [USB Optical Mouse] on usb-0000:00:13.0-1/input0 After system restart, dmesg says this: [ 19.802126] sky2 0000:02:00.0: eth0: enabling interface [ 19.802394] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 20.812533] device eth0 entered promiscuous mode [ 21.495547] sky2 0000:02:00.0: eth0: Link is up at 100 Mbps, full duplex, flow control rx [ 21.495677] sky2 0000:02:00.0: eth0: Link is up at 100 Mbps, full duplex, flow control rx [ 21.496574] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready

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  • How do I create a wireless ad-hoc network?

    - by Vinaychalluru
    Hello., Whenever i need to copy some files and couldnt find a pen drive, [ i dont have bluetooth enabled in my lap], I create a new ad hoc (wireless) network in windows and share the necessary files on the network and share files with the other system. Now, i want to do the same with Ubuntu. But, i couldn't. I could create a new network, but i am not able to chare or send or even dont know how to access the system connected to the network. So, how can i do this? Thanks

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  • eth0 not working on startup

    - by user4106
    Hi to all, This might sound strange but, working with my Lubuntu 10.04 i've experienced troubles when connecting to my eth0 newtwork. After some googling, i've found out that by writting in the CLI the following command: mii-tool eth0 -F 10baseT-FD and activating the eth0 in the toolbar (by clicking "activate eth0") everything works just fine. Well, up to now, i did not have any problem, because every time i turned on the computer i had to do this, but it was very little effort.But now, i would like to use the machine as a file server, accesing it by ssh, without monitor or keyboard. So, i won't be able to make this actions, and can't do this at startup because mii-tool needs root permissions. So, the question is: Do you know what does that command do, and how can id make that change permanent? Or do you know any other solution for my problem? I hope i was clear! If not, tell me and i'll try to be as clearer as possible. Thanks in advance!

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  • A tinkered PC resets its nameserver (resolv.conf) on each boot

    - by aitchnyu
    The Ubuntu 11.10 PC resets resolv.conf on each boot, only with a comment remaining. How do I fix this by setting the persistent storage? It was tinkered by somebody else and I (and him!) cant trace his actions. The graphical connection manager also refuses to work thanks to the tinkering. Content of interfaces file: root@technovia-3:~/dev/spectrum/spectrum# cat /etc/network/interfaces auto lo iface lo inet loopback

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  • Having trouble installing Bradcom STA driver

    - by user192881
    I just installed Ubuntu and love it so much, its so fast now. But I have a problem connecting to the internet. I checked and saw I have to install the driver Broadcom STA wireless driver but every time I do try to install it it says: Sorry, installation of this driver failed. Please have a look at the log files for details: /var/log/jockey.log I went to the terminal and copy and pasted the log file name. and when I did it, it said I have no permission to access this file. I checked on the forums that I have to be on a wired connection. So I plugged my laptop into my router and I got internet then tried to install the driver again. And it was loading then when it got to the end the same message popped up. Also I have one of those little USB router things you plug into the computer and it gives you internet I have been using that but its to slow. So I want to use the one in my computer but cant. Also I tried the command: sudo modprobe wl and when i type that command in it says: FATAL: Module wl not found Also I'm using Ubuntu 12.04

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  • My hardware MAC address is always 00:00:00:00:00:00 until I manually update 'eth0'. How can I fix this?

    - by user57184
    I am using Ubuntu 12.04. I use a wired connection. My network MAC address shows as 00:00:00:00:00:00. When I enter the commands below into a terminal window, it starts working again. sudo ifconfig eth0 down sudo ifconfig eth0 hw ether my mac address sudo ifconfig eth0 up I have to enter these commands every time I want to use the Internet. How can I fix this? Update copied from comment The contents of my /etc/NetworkManager/NetworkManager.conf file is: [main] plugins=ifupdown,keyfile dns=dnsmasq no-auto-default=00:00:00:00:00:00, [ifupdown] managed=false

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  • How to run just one application over ethernet while others on wifi

    - by db42
    I normally connect my laptop via wifi. However, I would like to use synergy to share my workplace desktop machine with my laptop. But the problem is that my desktop machine doesn't have wireless support. So, I have no other options except using ethernet to connect them. My first question is - Is it possible to use ethernet for synergy and keep using wifi for all other application. If the answer is yes, can somebody please guide me how to achieve this. Thanks,

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  • How to write the path to a Windows shared folders address in terminal?

    - by user206996
    I want to permanently mount a few Windows shared folders. I googled that topic and found a lot of good answers, but with all the solutions I have a little problem: I believe I can't properly give an address of shared folder. I can find it following way: "Network" - "Windows Network" - "WORKGROUP_name" - "Computer_name" - and there is some folder i would like to mount. How can I write the path to the folders in terminal? UPD i can access needed folder throw address in location bar smb://server/ro/, but i try mount it by editing /etc/fstab file (using guide https://wiki.ubuntu.com/MountWindowsSharesPermanently) i get error mount error: could not resolve address for server: Unknown error PS in /etc/fstab : //SERVER/RO /media/server cifs username=user,password=pwd, uid=1000,iocharset=utf8 0 0

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  • how to get wireless to work on my HP Compaq nx6325 Notebook on 12.04

    - by user211487
    When my laptop ran XP, the wireless worked perfectly. Now the only way I get internet is having it wired in my living room - which is MASSIVELY inconvenient for me seeing as my room is outside. I have downloaded the driver from 'Additional Drivers', reset my computer (with difficulty, it also doesn't seem to like turning off, so I have to 'kill' it) and still nothing! I have looked all over the internet trying to find solutions but I just cant seem to get it to work. I have a USB wireless stick but I can't load the driver from the CD. I got this comment on a previous question: "Using either Snaptic Package Manager or Ubuntu's own Software Centre, remove "bcmwl-kernel-source" if it's already installed. Next, search for "firmware-b43-installer” and “b43-fwcutter” and install both. Finally, running Software Sources and checking the Additional Drivers tab you should find Broadcom STA Wireless Driver that you can select, install and on reboot hopefully have wireless working ok..." Which I replied: "Right, so I tried to find/remove "bcmwl-kernel-source" but couldn't find anything. I managed to install both "firmware-b43-installer” and “b43-fwcutter” using terminal, after finding out how it worked. And lastly, I couldn't figure out how to find 'Broadcom STA Wireless Driver' - still no more additional drivers. And my wireless is still not working. My laptop has a button that turns wifi on and off and since I put Ubuntu on it, it hasn't worked. And also, my computer still doesn't seem to restart properly - it just gets stuck on the ubuntu loading screen." - hope that helps, somewhat I am VERY new to Linux, not very technical and in need of help! -Running Ubuntu 12.04 32bit on a HP Compaq nx6325 Notebook Thank you to anyone who replies, its much appreciated

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  • Forti VPN Client not connecting to a server under Ubuntu 14.04

    - by deonis
    I've just updated to a new version of Ubuntu (14.04 86x64) and I got a very strange problem with Forti VPN Client. It seems running smoothly, but when I try to connect via GUI or terminal it hangs at the connection stage. here is what I see in terminal: STATUS::Setting up the tunnel STATUS::Connecting... #and this takes forever I know that it's not the problem with the server, the client works no problem on windows. Thank in advance ...

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  • How to make my proxy settings change depending on the network I connect to?

    - by Little Jawa
    My company's corporate network requires me to set a network proxy to access the net, but when I am anywhere else, I don't need it. The proxy settings in Ubuntu (System - Preferences - Proxy server) allowed me to create "locations" that I can manually select. Then I have a "default" location (with no proxy) and a "work" location (with my company's proxy in it). Is there a way to make Ubuntu automatically select the "work" location based on the connection I'm using? I thought I could use the IP subnet (very specific) to detect where I am, but I have no idea how to set it up... Edit: I really need to have the proxy settings set at the system level. All my network connections (IMAP, SMTP, chat, etc) need to go through the proxy. Not only the web browser.

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  • MAC filtering after DHCP

    - by user1655161
    How to manage filtering by MAC in Ubuntu? Scenario: Ubuntu DHCP is configured and working (network 192.168.1.0) a) Laptop 1 is set in configuration on Ubuntu as static IP Laptop 1 is configured for automatic IP and when is connected to server everything works. I'm taking laptop 2 which is configured as static IP 192.168.1.10 and his configuration is not set in Ubuntu dhcpd.conf After laptop 2 is connected internet working. It is possible to do MAC filtering which disallow to connect PCs with address IP set as static but MAC address is not configured in Ubuntu (something like: intruder in network)?

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  • How to join a Windows Domain an Map NEtwork Drives on Ubuntu Partition

    - by AgainstClint
    I just installed the current build for Ubuntu on a partition for my work computer. I am a novice when it comes to Linux/Ubuntu, which is why I installed it along side windows. I want to learn how to operate and use Ubuntu much more than I do now, so I figured installing it and trying to do day to day functions here would be a "Thrown into the pool with sharks" way to do it, and I like that way. I did however have a few questions: We are on a Domain in Windows, is there any way to join that domain using the Ubuntu partition? We Also have 16 mapped network drives. I don't actually need ALL of them mapped for Ubuntu, but is there a way to Map at least one of them to see/use here in Ubuntu. Outlook Corporate email, how can I sign in/use it while...well, you get the idea. As I said earlier, I am VERY new to Ubuntu, i've only played around with it a bit at home and never at the office. If you could simplify it down for me a bit, that would be great.

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  • Getting my younger brother started on programming

    - by SmartLemon
    My younger brother is 13 years old, I started programming when I started to develop Android applications when I was 15, last year my brother gained an interest in it and he would always pestering me about letting him make something himself, so I wrote him a few tutorials and he built himself a small application that had a few buttons that did something, I think you put in your dob and it would tell you what day you were born on, he took a couple of days building up to his final application, maybe even a week, learning everything he needed. Since then he hasn't really done much more because I have been engulfed in work and such where I have my own programming problems to sort out. I told him that when he was my age (I am 17) that he should be better then me, he was a bit sceptical about this however. I dont think he has as much logical reasoning as I would think he needs to solve more complex problems, but shouldnt that just develop over time as it did with me? He has been pestering me for the past week or something to write him more tutorials, but I didn't have time. All I had with me was a playlist I had downloaded from the new boston from youtube for C++, it's about 73 videos. He is currently about 20-30 videos in, he has come to ask me a few questions about it and thats it. Should I have really properly started him with C++? Should I stop him now and start him again on python or ruby? I know that C++ shouldn't really be a beginners language, especially for someone who is only 13, by the time this question is answered will probably be up to learning about inheritance or something. Some people may see this as not a real question, but it is, and should be used as a reference for others. I want to know, should I start him on a different language whch is more easy? What language then? And would it be better for me to teach him myself (I would make time) or just continue him with the new boston? There are a few more questions throughout this question but these are the main ones. Part of the question people seem to be neglecting is me asking whether I should change what language he is learning to another, or since he is already pretty far through the tutorials should I just leave him with C++ and he can learn the other languages freely by himself?

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  • WiFi, No ping, other works fine

    - by Linux Mom
    I installed Ubuntu 12.04 LTS for my mom, this runs OK. However recently, I switched back and forth between encryptions on our WiFi Router from WPA-PSK to WEP and back again to WPA-PSK, same password. Now this old laptop won't even ping the gateway on the router, although the nm-applet shows connected. I tried re-adding the network and putting in the BSSID. I did this over again sometimes just to verify. I tried with my 3G Tethering on my phone, it works fine, can go online too. My other Linux laptop can go on the same wifi as well as my phone. And this laptop used to been online on the same network, same password, same encryption (WPA-PSK) What can be wrong ? Does it need a serious kick in the butt or removing some cached authorisation somewhere?

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  • Connected to Access Point but no internet connection?

    - by ReaZem
    I am trying to use my school's WPA Enterprise network to access the internet with my Three-OS laptop. I currently have Windows7, Ubuntu11.10 and Backtrack5 installed. I can use my home's WPA2 network without any issues with the 3 OS. I can successfully connect to my school's network with the 3 OS but I can only browse the internet with windows7. Ubuntu network-manager and Backtrack WICD both say that I am connected to the Acces Point but I cannot browse the internet. I have tried uninstalling network-manager and installing WICD but it did not solve the problem. Every time I connect to the Access Point, I am able to browse the internet for about 10 seconds. I have tried disabling IPV6 I have tried changing DNS.

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  • Why does Ubuntu really slow down the rest of my home network?

    - by tympaniplayer
    I have a ubuntu Dekstop and a Windows 7 Desktop. The windows 7 is connected via wireless adapter and the ubuntu dekstop is connected via ethernet. The wireless adapter is capable of 300Mbps link speed. When my ubuntu is connected to the interet, the network becomes very very slow. I have a 15 Mbps cable broadband connection. I have had many devices connected at one with no problem, yet this one connection seems to be wreaking havoc.

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  • Backup networks

    - by MegaBrutal
    My USB Wi-Fi adapter tends to overheat and when it happens, it stops working until I pull it out and plug it in again. Since I often access my machine remotely from other places, when it happens, my machine gets inaccessible for me until I get home to fix it. I'm thinking, I have another USB Wi-Fi adapter in spare. Would it be possible to plug it in that too but tell Ubuntu to only use it when the primary Wi-Fi adapter becomes off-line? (I won't use the other Wi-Fi adapter as primary because it provides significantly less quality.)

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  • Basic Facts About Ruby on Rails Programming Language

    The saying "Feels lighter, more agile, and easier to understand" has become the definition for ruby on rails. Many people still don't know that ror is otherwise called as ruby on rails. Let's learn more about the basic facts of ruby on rails, the lightening fast programming language today.

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  • I can not print on Windows 7 shared printer

    - by lrichard
    For a while I can not print from my Ubuntu 12.04 64 bit pc on a Windows 7 shared printer. Before that everything was ok. The printer is HP LaserJet 1100. The error message is: "File "/usr/lib/cups/backend/smb" not available: No such file or directory" I have tried to reinstall the samba, I have configured the workgroup properly. I have tried to reinstall the printer on the Ubuntu machine with the proper address, or with lpd (I have read somewhere). If I restart the printer on the cups web interface ("Resume Printer") the problem seems to be solved, but not. (The printer seems to be idle, and if I want to print, I still get the error message.) I have checked the share rights on the Windows 7 pc, and I think it is ok.

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  • Programming tourism

    - by Andrew_B
    I'm going on vacation to Paris, France for 10 days. Actually, it's my girlfriend's wish to go there but I'm not very interested in visiting, sightseeing, etc. Recently, I came up with an idea of trying to do something like programming tourism. :) I'd like to do something related to programming in a startup-like company. I do not want a salary or any kind of compensation. I want to overview process, social aspects, environment and "what it feels like" to development software in another country. I'm from Russia. I've been a software developer since 2003. I prefer C#4 but I'm ready to use anything Turing-complete. I have some MS certifications and am familiar with all .NETs since 1.1. Currently I'm finishing PhD in CS. I'm interested in multidimensional indexing and I can turn any piece of data and code to OLAP system. :) But it'd take too much time. What can I do? I have no more than one week. I want a totally complete project in a short amount of time. Implement some features in well-tested project Do a code review Debug memory, performance and concurrency issues Do unit testing So, about the questions: Is it legal? I'm ready to sign NDA if it's necessary. I'll have tourist visa. Is it possible? I'm really sure that bureaucratic companies with lots of HRs and PMs will not allow such experiments. But small companies can afford it. I'm ready to guarantee support on my code after leaving home :) P.S. I still havn't started learning French :) I hope it will not take too much time :) P.P.S. Yes, it's girlfriend-approved. What's in it for me? It's fun. It's fun to see new systems and people who created them. It's fun to complete meaningful things. Quickly. What's in it for them? Feature, debug, review or test. If my short-term colleagues will like this style of working I can invite them to make same trip into my company :) I think in Russia it's even more exciting :)

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  • Connect to wifi ubuntu 14.04 (new ubuntu user)

    - by user289168
    I have recently changed my operating system from windows 8 to ubuntu 14.04, when trying to connect to the network via wifi the system just keeps asking for my password over and over without connecting. The connectivity through an Ethernet cable is perfectly fine however and my wifi worked fine through windows 8, I have very little ubuntu knowledge so i apologise if the right information is not shown in this question. Just wondering if there was any known problems or if anyone has seen this before? Thanks in advance for any help, Tom

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  • What are the difference between: agent, actor, dataflow based programming?

    - by inf3rno
    What are the difference between the following terms? agent-based programming agent-based programming with microagents actor-based programming actor-based programming with lightweight actors dataflow based programming It is hard to find comparing articles and they are very similar. Afaik they have different constraints and they are implemented on a different abstraction level, but I need some reassurance...

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  • Problem with connect to server using FTP(with login)

    - by Sourav Chattopadhyay
    I am unable connect to my remote account using Ubuntu's "Connect to Server" option after moving on to Ubuntu 12.04 LTS. In Ubuntu 10.10 I used to connect to my FTP server by going to Places-Connect to server-FTP (with login) After giving the userid and password the remote folder would mount immediately but now it is showing a busy icon at top until I close the window after some time. I have also tried to connect using Ctrl + L from a Nautilus window using sftp://user@server but result is the same. Even though I could connect to my FTP server using gFTP, the default one from Nautilus is a better option to me.

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