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• How can I restore a country specific apt-get update mirror?

  - by ferrarimarco

  While configuring my new 13.10 installation, I chose to change the default update server using the "Software & Updates" GUI tool available in the System settings panel. Before this change the selected update server was "Server for Italy" (I live there). Now it's one of the mirrors available in the list of mirrors (one of italian ones). How is "Server for COUNTRY" chosen in the list of mirrors for a country? How can I restore the "Server for Italy" option? Is it advisable to do so? I want to revert that setting because I found that the selected mirror is not up to date (checked from Here).

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• Warning about unavailable repositories

  - by richzilla

  An icon has recently appeared on my panel with an exclamation mark. The message i get when hovering over this is that the update information is out of date, and that this may be caused by an unavailable repository or a network isssue. My network connection appears to be ok. The message advises i manually check for updates. When i do this, i get the following message: W:Failed to fetch http://ppa.launchpad.net///ubuntu/dists/maverick/main/source/Sources.gz 404 Not Found , W:Failed to fetch http://ppa.launchpad.net///ubuntu/dists/maverick/main/binary-amd64/Packages.gz 404 Not Found , E:Some index files failed to download, they have been ignored, or old ones used instead. Any idea whats going on?

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• Button "Add" is disabled in VPN Connection's dialog

  - by Innuendo

  I've just installed elementaryos-jupiter. (It's based on Ubuntu 10.10) I've entered VPN Connections' menu (nm - VPN Connections - Configure VPN) And there should be button "Add" - it is, but it's disabled (I can't press on it) I'm connecting via ethernet (LAN in a students' hostel) and we get internet via VPN connection (It worked for me in Ubuntu for a few years) Any suggestions? I've asked on IRC of elementaryos (there were few people) but they said that VPN is out-of-box, and it should work - they never met this.

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• cannot install cinnimon 2.xx

  - by user207587

  Fetched 841 kB in 28s (29.3 kB/s) W: GPG error: http://packages.mate-desktop.org raring Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 68980A0EA10B4DE8 W: Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/raring/main/binary-i386/Packages 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead. userx@bw:~$ How do I fix that? How do I add a PUBKEY to get needed files to complete install of Cinnamon?

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• How to route KVM virtual machine audio to Ubuntu 11.10 host using virt-manager?

  - by iGadget

  I've been using KVM in combination with Virt-Manager and Remmina at a fair success up until now. The issue I need to solve now is to get audio from a virtualized Windows XP and make it audible on the Ubuntu 11.10 host. Remmina / RDP works for 'simple' audio (system sounds and such), but when the source gets trickier (e.g. Flash audio), Remmina / RDP messes up. So I figured I'd just connect to the machine directly using Virt-Manager. Unfortunately, it seems that even though I have successfully configured the AC97 audio device on WinXP, it's unable to get it's output to the Ubuntu host. This is probably because Virt-Manager uses VNC (and AFAIK, VNC doesn't transport audio). Does anyone know if there is a solution to fix this? I've heard of Spice, but the installation required so much voodoo last time I checked, I figured I'd let that solution boil to maturity a little longer ;) But perhaps there are other options I haven't thought of yet (which don't require switching to VirtualBox / VMware)...

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• Network configuration problem with ubuntu

  - by Musti

  I am a new Ubuntu user. In my dorm there is a bit strange connection way for internet, I have to configure given "IP address, Subnetmask, Default gateway, Preferred DNS server, and Alternate DNS server" to have an internet connection, otherwise it is imposible. Actually it is very easy in windows, I am just opening Network and Sharing Center and then setting up TCP/IPv4. I had some attempt in Ubuntu, but just failed :/ Can anyone tell me how to configure? Thanks in advance... Musti

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• not getting updates

  - by gknarayana

  when i check for updates the message is "W:Failed to fetch cdrom://Ubuntu 12.04 LTS _Precise Pangolin_ - Release i386 (20120423)/dists/precise/main/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs , W:Failed to fetch cdrom://Ubuntu 12.04 LTS _Precise Pangolin_ - Release i386 (20120423)/dists/precise/restricted/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs , W:Failed to fetch cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012)/dists/oneiric/main/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs , W:Failed to fetch cdrom://Ubuntu 11.10 _Oneiric Ocelot_ - Release i386 (20111012)/dists/oneiric/restricted/binary-i386/Packages Please use apt-cdrom to make this CD-ROM recognized by APT. apt-get update cannot be used to add new CD-ROMs , E:Some index files failed to download. They have been ignored, or old ones used instead." please suggest what i should do

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• Oracle Enterprise Manager Cloud Control 12c Release 2 (12.1.0.2) ist da!

  - by Ralf Durben (DBA Community)

  Das zweite Release von Oracle Enterprise Manager Cloud Control 12c ist jetzt verfügbar und zwar für alle Plattformen, auf denen auch das Vorgängerrelease genutzt werden konnte. Das gab es bei Enterprise Manager noch nie: Alle Plattformen haben die gleiche Priorität! In dem neuen Release wurde die Stabilität nochmals verbessert und einige Wünsche unserer Kunden verwirklicht. Auch einige neue Funktionalitäten, wie zum Beispiel "Java as a Service" stehen nun zur Verfügung. Neben dem Cloud Control Framework wurden auch einige Plug-Ins erneuert. Cloud Control 12.1.0.2 ist ein komplettes Release und der Download enthält alles für die Installation des OMS und Agenten. Damit kann mit der Software eine komplette Neuinstallation oder ein Upgrade von EM 10.2.0.5, 11.1 oder 12.1.0.1 (auch ohne Bundle Patch 1) vorgenommen werden. Eine Übersicht über die Neuerungen finden Sie im Oracle Enterprise Manager Cloud Control Introduction Document.

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• How to setup VPN as Proxy

  - by Nicolas Nox

  I have an PerfectPrivacy VPN connected via the OpenVPN-Network-Manger-Plugin (Ubuntu 12.04.1) and I want to assign a system wide proxy over that VPN. I have tried proxydriver that should do that automatically, but it works partially. The browser says that I have the IP of the VPN, but when I tried to send an eMail over SMTP (Port 25), I can´t connect to the mail server. In our company the smtp server port is closed, but that should be not a problem, when I do that over a VPN, shouldn´t it? greetings

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• I can not download anything

  - by Jason Machen

  I am very new to ubuntu but decided to wipe my windows 7 and install it. I can not download anything from the software center. This is the error message I get. I can use the web in all other ways including this site. What can I do? Thanks, Jason W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/raring-security/main/source/Sources 404 Not Found [IP: 91.189.91.13 80] W:Failed to fetch http://security.ubuntu.com/ubuntu/dists/raring-security/restricted Plus about 20 other lines.

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• Two bugs you should be aware of

  - by AaronBertrand

  In the past 24 hours I have come across two bugs that can be quite problematic in certain environments. LPIM issue with SetFileIoOverlappedRange Last night the CSS team posted a blog entry detailing a potential issue with Lock Pages in Memory and Windows' SetFileIoOverlappedRange API. I tweeted about it at the time, but thought it could use a little more treatment. The potential symptoms can vary, but include the following (as quoted from the blog post): Wide ranging in SQL from invalid write location,...(read more)

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• NetworkManager doesn't detect my broadband device

  - by Joril

  I have a Huawei K3765 (USB ID 12D1:1520) and I'm trying to use it with Ubuntu 10.04 Lucid. I have usb-modeswitch installed, so when I plug the device I can see that it gets switched from storage-mode to modem-mode. My problem is that when I try to create a broadband mobile connection for it, NetworkManager doesn't detect the modem... I tried this on two different laptops. /var/log/daemon.log doesn't show anything of interest, AFAIKT... What could I try?

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• Managed servers getting down regularly by Node Manager. WAD?

  - by csoto

  Recently I have been working on a service request where several instances were running, and several technologies were being used, including SOA, BAM, BPEL and others. At a first glance, this may seem to be a Node Manager problem. But on this situation, the problem was at JMS - Persistent Store level. Node Manager can automatically restart Managed Servers that have the "failed" health state, or have shut down unexpectedly due to a system crash or reboot. As a matter of fact, from the provided log files it was clear that the instance was becoming unhealthy because of a persist6ent Store problem. So finally, the problem here was not with Node Manager as it was working as designed, and the restart was being caused by the Persistent Store. After this Persistent Store problem was fixed, everuthing went fine. This particular issue that I worked was on an Exalogic machine, but note that this may happen on any hardware running Weblogic.

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• I Can't update 12.04 to 12.10 ERROR:"gpg: WARNING: This key is not certified with a trusted signature!"

  - by jason328

  I'm trying to update to 12.10 from a 12.04 machine. When I ran the code sudo do-release-upgrade -d in my terminal and verified my password it checked for a new upgrade. I was then returned with this: gpg: Good signature from "Ubuntu Archive Automatic Signing Key <[email protected]>" gpg: WARNING: This key is not certified with a trusted signature! gpg: There is no indication that the signature belongs to the owner.` There of course is more but it looks like it may or may not be showing private information with it. What's causing this and how do I fix this.

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• Internet connection crashes while wifi / lan stay connected

  - by pirad

  I am connected to a router by wifi or lan. But every few moments (sometimes seconds, sometimes half an hour) my connection to the internet breaks down. So in one moment I can surf with my firefox and have ping times of 20 ms (wifi) to the google server. And in the next moment I can't open any pages in any browser and the ping shows no new messages first and then "Destination Host Unreachable". This is especially odd as another computer or my smart phone stays connected at the same time to the same network and seems to notice nothing. So I have a problem independend of wifi or lan drivers but with something else. Where should I look for logs that could tell me more information? I can't find some in syslog. Just if I reconnect to the router (wich works for another few moments) there are a lot of informations. But everythin is okay then.

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• Kubuntu 11.10 Lot of Networking problems

  - by Cobraone

  Since I upgrade to 11.10 I have a lot of problems with KDE. First of all there are problems in configuring a static IP address. Just to explain @home I have a normal fiber ADSL and I use a DHCP. When I go to a customer I must insert a static IP address. With ifconfig everything seems ok but there is something wrong in searching DNS names. (I have installed Ubuntu and was going ok again). Now I Have reinstalled again Kubuntu 11.10 and I have the same problem in addition today I have discovered that if I connect to a network in another customer office the desktop freezes and I could only switch between windows with alt+tab. No FN key or right click to open run command works. So i unplugged network (configuration is just DHCP here) and tried on another position in office. It was the same. My Laptop freezes when connected, a fedora 14 of a friend works. So I decided to connect my Galaxy S II as USB network device. Everything is ok for like 3 minutes. When I noticed a little loss of signal again the desktop freezes and i must work (like now) just switching between windows with alt+tab). Additional information: Unplugging network or restarting it via Konsole does not not solve the freezing problem. Every time I must open a console and reboot. Any idea of what tests to do ? Just a recommendation: If I must post here logs or something else please guide me. I use Linux since Ubuntu 9 but I am not an "expert".

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• Can I set up a hostname alias that is only active in a specific network?

  - by denisw

  I have a small ARM box running ownCloud in my house, and a domain bound to my DSL router with Dynamic DNS. This works well as I can configure the ownCloud client to use the domain name, which works both in the house and when I'm on the road. However, at home I would like to let my laptop and my server talk to each other directly on the local network, rather than as if they were talking over the Internet (including DNS resolution for my domain name, routing all traffic through the DSL machinery etc.). I know that I can set a hostname alias for my domain in /etc/hosts - the problem is that I want this alias to only be active when I'm in the home network, while in all other cases DNS resolution should be used as normal. Is this possible?

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• Unable to Boot Into Windows 7 after Ubuntu 10.04 Update

  - by PlantGuy

  I'm running a dual boot Windows 7 / Ubuntu 10.04 system. I ran the Ubuntu update last night, and today when I tried to boot into Windows 7, it goes straight to the windows recovery on my Acer 5517 laptop. I've spent the entire day trying to resolve this with no success. I used my Windows 7 Recovery Disk to reset the mbr, but that didn't help. The system was working perfectly prior to the update. It appears that now Grub is pointing to the recovery partition rather than the primary partition. Any help will be greatly appreciated. I don't relish the idea of reformatting and starting from scratch.

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• How do I restore logging in with an X session graphics instaed of text-only session?

  - by ajThree9

  I was able to set up a text UI by editing the file /etc/default/grub in Ubuntu 12.04 as per the instructions in: How do I disable X at boot time so that the system boots in text mode? But, how do I revert to X-session as the default one? I don't want to log into text mode and 'start' the lightdm every time. So I tried replacing back the GRUB_CMDLINE_LINUX_DEFAULT="text" to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash", and did update-grub too, but something unexpected happened, an unbootable system! How do I fix this?

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• communication network applications in Ubuntu 12.04

  - by soporte.cs

  I have installed edubuntu on 2 computers that are networked. I installed an educational software to keep track of the teams (one student and one teacher) but the teacher software is not any student team, as I have indicated in the product support should be enabled for proper telnet performance but despite being able to telnet between computers not get it to work. I wonder which options should be active in ubuntu for this type of software to operate smoothly. Thank you.

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• A peculiar issue with nm-applet

  - by montreux

  There is a somewhat strange error that I've noticed with my gnome sessions. It's not a problem that causes a lot of trouble, but at times it becomes annoying. Anyway, here it is: when I fire up gnome-session-fallback (which is the main one I use), the network applet doesn't run with root permission. Here is what it looks like http://i.imgur.com/8kc7Vrd.jpg . On the other hand, here is what the regular gnome session looks like http://i.imgur.com/wfkkE3E.jpg . From the regular session I can easy edit and add networks, but from fallback session I cannot add/edit anything, or turn off/on the wireless or networking. Any ideas?

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• Connecting with a BSNL Broadband Internet

  - by user10026

  I am not able to connect my broadband connection with ubuntu and it doesnt work. The connection works fine when I use Windows7 but when i use ubuntu I am not able to access the internet. I followed various steps mentioned in various sites and still could not find a solution. I have installed ubuntu 8.04 in my system. The interface eth0 is not at all detected and when i use the menu system-administrator-network I am not getting an option for wired connection. Just the Wireless connection and Point to Point connection tabs are available.. It's really urgent.. I'll be very happy if u guys can propose to me a working solution to deal with this problem..

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• how do I fix 12.04 which has crashed after the latest update

  - by user70261

  I added a new drive to my system because the old one was full and stopped. I installed 12.04 at the same time, onto the new drive using a flash disk while off line. The system performs fine on 12.04 from the flash disk and it booted from the new drive OK and I was able to recover all my old data. The updater suggested that I update, so I went ahead and did so. At the end of which it wanted to reboot. I went ahead but on reboot I get to the log in prompt and then the whole system crashes. It tries to recover and then performs a bug report during which it tells me that a whole bunch of files are out of date (these would be the new ones I just updated!) and the screen goes black. Game over. I've tried to reboot several times ... same result. I can boot off the flash drive OK. How do I restore the system I had before the update, without over writing all my hard earned recovered data? Or how do I identify the "new updates" that are causing me grief?

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• NetworkManager detects no networks with a RTL8188CE

  - by Cormac O'Brien

  I'm on a 2011 Lenovo Thinkpad T420i with a Realtek RTL8188CE WiFi adapter. Here's the scenario: I pop in the Ubuntu LiveCD to install. Laptop detects all networks in range, I connect to my home network, internet working great. Once Ubuntu finishes installing, the home network I am connected to is the only one which appears in the applet list. Upon restarting or waking from suspend, NetworkManager does not detect any networks – it simply displays "Disconnected" under the Wireless Network section of the menu. I am able to connect to my home network by using the "Connect to Hidden Wireless Network" option and it works immediately. I have yet to test if this works with other SSIDs. I have tried reinstalling the entire OS as well as NetworkManager and my wireless drivers. For hardware info, I ran: cormac@cormac-T420:~$ sudo lshw -c network Here is the output for my wireless card: *-network description: Wireless interface product: RTL8188CE 802.11b/g/n WiFi Adapter vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:03:00.0 logical name: wlan0 version: 01 serial: d0:df:9a:08:73:50 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=rtl8192ce driverversion=3.2.0-26-generic firmware=N/A ip=192.168.1.138 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn resources: irq:17 ioport:5000(size=256) memory:f2500000-f2503fff I can provide more information if required. This was not a problem in Natty or Oneiric. I hope this can be fixed, I don't want to have to ask for an SSID wherever I need to connect.

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• Networking Icon Keeps Disappearing

  - by Zelda64fan

  Almost every time I unlock my computer the networking icon and the Bluetooth icons are missing from the panel. They also disappear if I disable networking with the 'hardware switch', even though before they would just switch to a 'disabled' look. I know I can get the networking one back by running nm-applet, but I'd rather just find a way to make it stop disappearing. What causes this? This is on 12.10 64-bit, if it matters. UPDATE: I ran it from terminal, and got this: $ nm-applet ** Message: applet now removed from the notification area ** Message: PID 31340 (we are 28924) sent signal 15, shutting down... And then it exited. So it thinks it's supposed to quit...? I haven't been able to figure out what process had that ID.

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