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• Install a Mirror without downloading all packages from official repository

  - by Sam

  I first gonna explain the situation: I have a Laptop which is connected to a wifi connection, and a Desktop which can not be connected to Internet (the modem is too far from it), and i want to install some software on the last one. (The two PCs are running Ubuntu 12.04, and are connected with an Ethernet cable) I've already searched for a solution, but all I've found was the use of some softwares that should have been already installed on the "Internet-less PC". ( Keryx, APTonCD ... ) What I want to do is to create a mirror in my laptop which contain the packages i have in this one ( situated in /var/cache/apt/archive ) and i don't want to download all the packages from the official repository, I actually don't need them. Can someone tell me if it is possible to do that ? Thanks,

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• how to install a 3g dongle onn ubuntu

  - by user211208

  i have a 3g dongle of lava and i am not able to install it on my Ubuntu OS.when i plug it in it does not even recognize it,although the dongle has installation setup for Linux also. so how do i use internet on Ubuntu using a 3g dongle?? i even tried out the 3g dongle of Tata Docomo.i need to get software for my P.C to listen songs and watch movies.without net the OS is useless. i clicked on the network icon on the right corner and then on VPN connections to set up and Mobile broadband connection by providing the necessary info.at the end of all the stuff i entered the password for allowing it to install but there was an error. what am i supposed to do ??

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• How to keep a generic process unique?

  - by Steve Van Opstal

  I'm currently working on a project that makes connection between different banks which send us information on which that project replies. A part of that project configures the different protocols that are used (not every bank uses the same protocol), this runs on a separate server. These processes all have unique id's which are stored in a database. But to save time and money on configurations and new processes, we want to make a generic protocol that banks can use. Because of PCI requirements we have to make a separate process for every bank we connect to. But the generic process has only 1 unique identifier and therefor we cannot keep them apart. Giving every copy of that process a different identifier is as I see it impossible because they run entirely separate. So how do I keep my generic process unique?

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• Discover Why Computer Shut Down

  - by kzh

  I was at school SSHing to my homebox. All of a sudden, my connection was closed. Attempting to reconnect failed. When I returned home, I discovered that my computer was off. Nobody was at my house and I am sure that I did not have a power outage. How can I figure out how or why my computer shut off? Is there some log in /var/log that could point me in the right direction? Should there be a core dump somewhere that I should find? If so, how do I use core dumps?

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• Why has wireless disappeared after my 12.10 upgrade?

  - by Shay Guy

  I just upgraded to 12.10 on my Lenovo B570 laptop. NetworkManager isn't displaying a submenu for wireless connections at all, even though I downloaded the update through the wireless connection. This displeases me. Stuff I've tried includes: $ sudo modprobe wl FATAL: Module wl not found. $ sudo lspci -nn | grep "BCM" 02:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01) $ rfkill list all 0: ideapad_wlan: Wireless LAN Soft blocked: no Hard blocked: no ETA: linux-headers-generic is already the newest version, and what I get when reinstalling bcmwl-kernel-source includes the following, near the end. DKMS: install completed. ERROR: Module b43 does not exist in /proc/modules ERROR: Module b43legacy does not exist in /proc/modules ERROR: Module ssb does not exist in /proc/modules ERROR: Module bcm43xx does not exist in /proc/modules ERROR: Module brcm80211 does not exist in /proc/modules ERROR: Module brcmfmac does not exist in /proc/modules ERROR: Module brcmsmac does not exist in /proc/modules ERROR: Module bcma does not exist in /proc/modules FATAL: Module wl not found.

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• Why Ubuntu One pretends to sychronize files, but it doesn't?

  - by Tom Brito

  I have my Ubuntu One account configured in both Ubuntu 11.10 and iOS (ipod-touch). The photos from the iOS were successfully uploaded, but in Ubuntu One, although it shows the "syncing" and "synchronized" marks over the icons, the files are not showing in the website (one.ubuntu.com). In short: My files are not showing in the Ubuntu One website, although the icons have the "uploaded" mark. Any idea what can be wrong here? obs1: Also, not sure if it's related, the icon-marks will show only when I open the Ubuntu One Control Panel. It shows the message "file was uploaded", but there's nothing online. obs2: The folder I'm trying to synchronize is 30mb size. And my connection is 8mbps.

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• How to configure traffic from a specific IP hardcoded to an IP to forward to another IP:PORT using i

  - by cclark

  Unfortunately we have a client who has hardcoded a device to point at a specific IP and port. We'd like to redirect traffic from their IP to our load balancer which will send the HTTP POSTs to a pool of servers able to handle that request. I would like existing traffic from all other IPs to be unaffected. I believe iptables is the best way to accomplish this and I think this command should work: /sbin/iptables -t nat -A PREROUTING -s $CUSTIP -j DNAT -p tcp --dport 8080 -d $CURR_SERVER_IP --to-destination $NEW_SERVER_IP:8080 Unfortunately it isn't working as expected. I'm not sure if I need to add another rule, potentially in the POSTROUTING chain? Below I've substituted the variables above with real IPs and tried to replicate the layout in my test environment in incremental steps. $CURR_SERVER_IP = 192.168.2.11 $NEW_SERVER_IP = 192.168.2.12 $CUST_IP = 192.168.0.50 Port forward on the same IP /sbin/iptables -t nat -A PREROUTING -p tcp -d 192.168.2.11 --dport 16000 -j DNAT --to-destination 192.168.2.11:8080 Works exactly as expected. IP and port forward to a different machine /sbin/iptables -t nat -A PREROUTING -p tcp -d 192.168.2.11 --dport 16000 -j DNAT --to-destination 192.168.2.12:8080 Connections seem to timeout. Restrict IP and port forward to only be applied to requests from a specific IP /sbin/iptables -t nat -A PREROUTING -p tcp -s 192.168.0.50 -d 192.168.2.11 --dport 16000 -j DNAT --to-destination 192.168.2.12:8080 Times out as well. Probably for the same reason as the previous entry. Does anyone have any insights or suggestions? thanks,

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• Wireless network unstable and often WPA2 protected networks just don't work

  - by Pedro

  I have an issue with my wireless network,so that the connection is working for only a few minutes, after which my browser no longer is able to load pages, even if the wireless is still active/connected. Furthermore, most of the time WPA2-personal protected networks don't work, (yesterday was the first time it worked - for a few minutes). By "don't work" I mean that it seems to successfully connect, but the browser can't load pages. I am running Ubuntu 10.10 32bit, and my wireless card is a RaLink rt3090. No changes have been done to any settings since Ubuntu was installed - networking began working on its own after the installation - but as described in first paragraph not very well.

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• Openx api Advertiser statistics call [migrated]

  - by Sameer

  I am trying to write a jsp application which will establish the xmlrpc connection with openxapi and return the values. I am using openxapi v1 Here I get the dates through a datepicker and then convert to date format: `String dateStr = request.getParameter("datum1"); SimpleDateFormat formater = new SimpleDateFormat("dd-MM-yyyy"); Date result1 = formater.parse(dateStr); String dateStr2 = request.getParameter("datum2"); SimpleDateFormat formater2 = new SimpleDateFormat("dd-MM-yyyy"); Date result2 = formater2.parse(dateStr2);` Then I call the service provided by openxapi (Advertiser Daily Statistics) (sessionID, advertiserID, from date, to date) Object[] objects1=(Object[])client.execute("advertiserDailyStatistics", new Object[]{sessionId,3,result1,result2});

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• Moving large amounts of data between shared hosts

  - by Bryan M.

  I recently acquired a client who is a photographer and was interested in moving web hosts since his current host had threatened to throw him off due to CPU spiking. The migration went fairly easily, with about 350MBs of website and media files. Then I discovered about 60GBs of client galleries he had failed to mention. I am unable to move this much data myself, since I'm capping out at about 20kb/s on the FTP connection. Has anyone encountered a situation where they needed to migrate this much data between cheap hosting? Should we contact the hosting companies about this (he is moving from Westhost to MediaTemple)?

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• How to Run PowerShell Commands on Remote Computers

  - by Chris Hoffman

  PowerShell Remoting allows you to run individual PowerShell commands or access full PowerShell sessions on remote Windows systems. It’s similar to SSH for accessing remote terminals on other operating systems. PowerShell is locked-down by default, so you’ll have to enable PowerShell Remoting before using it. This setup process is a bit more complex if you’re using a workgroup – for example, on a home network — instead of a domain. How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me?

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• Help, my CentOS servers keep going down , No route to host after a random uptime

  - by user249071

  Hello , I have a couple of Centos linux servers, that have a very simple task, they run nginx + fastcgi for php , and some NFS mounts between them, readonly They have some RPC commands to start some downloading processes with wget, nothing fancy , from a main server, but their behavior is very unstable, they simply go down, we tried to monitor ram , processor usage, even network connections, they don't load up so much, max network connections up to... 250 max, 15% processor usage and memory , well, doesn't even fill up, 2.5GB from 8GB max , I have no ideea why can a linux server go down like that, they aren't even public servers, no domain names installed no public serving, for sites. The only thing that I've discovered was that if i didn't restart the network service every couple of hours or so... the servers were becoming very slow, starting apps very slow, but not repoting a high usage of resources...Maybe Centos doesn't free the timeout connections, or something like that...It's based on Red Hat right? I'm not a linux expert , but I'm sure that there are a few guys out there that can easily have an answer to this , or even have some leads to what i can do ... I haven't installed snort, or other things to view if we have some DOS attacks, still the scheduled script that restarts the network each hour should put the system back online, and it doesn't.... Thank you in advance

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• Graphite not running

  - by River

  I'm currently trying to install graphite 0.9.9 on a gentoo box using these instructions from the graphite wiki. Essentially, it fronts graphite using apache and mod_wsgi. Everything seems to have gone well, except that apache / the graphite webapp never seem to return a response to the web browser (the browser continuously waits to load the page). I've turned on the graphite debug info, but the only message in the log files is this, repeated over and over again in info.log (with the pid always changing): Thu Feb 23 01:59:38 2012 :: graphite.wsgi - pid 4810 - reloading search index These instructions have worked for me before to set up graphite on an Ubuntu machine. I suspect that mod_wsgi is dying, but I have confirmed that mod_wsgi works fine when not serving the graphite webapp. This is what my graphite.conf vhost file looks like: WSGISocketPrefix /etc/httpd/wsgi/ <VirtualHost *:80> ServerName # Server name DocumentRoot "/opt/graphite/webapp" ErrorLog /opt/graphite/storage/log/webapp/error.log CustomLog /opt/graphite/storage/log/webapp/access.log common # I've found that an equal number of processes & threads tends # to show the best performance for Graphite (ymmv). WSGIDaemonProcess graphite processes=5 threads=5 display-name='%{GROUP}' inactivity-timeout=120 WSGIProcessGroup graphite WSGIApplicationGroup %{GLOBAL} WSGIImportScript /opt/graphite/conf/graphite.wsgi process-group=graphite application-group=%{GLOBAL} WSGIScriptAlias / /opt/graphite/conf/graphite.wsgi Alias /content/ /opt/graphite/webapp/content/ <Location "/content/"> SetHandler None </Location> # XXX In order for the django admin site media to work you # must change @DJANGO_ROOT@ to be the path to your django # installation, which is probably something like: # /usr/lib/python2.6/site-packages/django Alias /media/ "/usr/lib64/python2.6/site-packages/django/contrib/admin/media/" <Location "/media/"> SetHandler None </Location> # The graphite.wsgi file has to be accessible by apache. It won't # be visible to clients because of the DocumentRoot though. <Directory /opt/graphite/conf/> Order deny,allow Allow from all </Directory> </VirtualHost>

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• How do we install Unity-2D and dependencies offline?

  - by Takkat

  We have installed 11.04 32-bit on an old machine that has no internet connection and with a graphics card that is not suitable for running Compiz or Unity. Still, we would like to run Unity-2D on this machine. We are aware of answers to this Question. Sadly Keryx will not run on 11.04 32-bit because of unmet dependencies. Building an offline repository is not an option because of limited storage capacity. Is there any convenient other way to find, download, install, and eventually update unity-2 and all dependencies (preferably from an OS independent download path)?

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• Upgrade to 14.04 broke gsettings

  - by zrneely

  I have a cron job which runs every 30 minutes that changes the background image by running this bash script: #!/bin/bash export DISPLAY=:0 export GSETTINGS_BACKEND=dconf wpdir="/home/username/Pictures/wallpapers/" prefix="file://" file=`ls $wpdir | shuf -n 1` gsettings set org.gnome.desktop.background picture-uri "$prefix$wpdir$file" This worked perfectly until I upgraded to 14.04. Now, running the script produces this output: (process:27459): dconf-WARNING **: failed to commit changes to dconf: Could not connect: Connection refused What can I do to fix this? Google didn't turn up any useful results. EDIT: I noticed that running this does change the background displayed on the lock screen, but it does not affect the desktop background.

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• Unable to connect via Mobile Broadband - But its detected - 12.10

  - by Rexford

  Previously (on ubuntu 12.04), i will just connect my 3G mobile broadband modem, and will start browsing after enabling it and going through the setup process. However, on the 12.10, I'm able to setup my connection, but it doesn't connect to the internet. All settings are okay. I've tried two different network providers in Ghana, still, i'm not able to connect. At times, i'm notified that, its connected to the "home network" of the service provider, but disconnects in less than 10 seconds. Is it supposed to be a bug? I've been reading about the wvdial, but I'm wondering something that used to be possible by "default" in Ubuntu should now be "configured" via a software. Help!

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• Is there a way to make the speaker silent while the headphone-jack keeps working? 12.04LTS

  - by Cees

  The PC I am working on is in a loud environment. If I need sound, I use the headphone. On my own account this is easy: I mute the speaker in the sound-setting. I am not the only user, others use the Guest-session. And that's what this question about: Is it possible to turn off the speaker by default on a guest-session AND leave the headphone-output working? If yes, how can I fix it? I tried to loosen the speaker (hardware) connection but it is soldered to the mainboard. The soundcard on the PC is: HDA Intel at 0xfea78000 irq 44 /proc/asound/pcm ---------------------------+ ¦00-00: ALC662 rev1 Analog : ALC662 rev1 Analog : playback 1 : capture 1¦ ¦00-02: ALC662 rev1 Analog : ALC662 rev1 Analog : capture 1 Ubuntu 12.04LTS is running on the system, my account has all the (admin) rights

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• Cannot install build essential from the CD?

  - by munir

  After a fresh installation of Ubuntu 10.10 I tried to install build-essential from the Ubuntu installation CD. I put the cd in the cdrom and in the software repositories i checked the box install from cd(Ubuntu 10.10 release Maverick Meerkat). Then I reloaded the software repositories. The synaptic manager then tried to download some repository related files but failed to do so as i didn't have internet connection. Then I open a terminal and wrote sudo apt-get install build-essential. It prompted me if I want to install build essential y/N. I typed y but the terminal showed some errors and was not installed. I also tried to add the CD in the software repositories. I clicked add and it prompted me to insert a CD while the CD was still inside the cdrom. I clicked "ok" then and it showed it could not find any cd. What is wrong?

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• How do I get the Netgear N150 USB wifi adapter working on 12.04?

  - by Jon

  Just installed latest version of ubuntu. I'm using a Netgear N150 Wireless USB Micro Adapter WNA1000M which keeps asking for network password over and over. I read elsewhere that I needed to install the latest driver for my chipset (RTL8188CUS) which I have and still no joy. If I run the steps listed in this thread while connected through ethernet, the wireless will connect just fine. If I disconnect the ethernet, the wifi will even continue to work, but after a restart or two I will lose connection. If I repeat the steps listed in the aforementioned thread, it will not re-connect wifi unless I run those steps while connected to ethernet.......so strange...

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• Suddenly getting lock timeouts with MySQL

  - by Marc Hughes

  We've got a web app hosted on Amazon Web services. Our database is a multi-az RDS MySQL server running 5.1.57 and 3-4 app servers talk to it. Today, we started seeing a lot of errors along the lines of "Lock wait timeout exceeded; try restarting transaction" - almost 1% of POST requests are seeing this. There have been no modifications to the code running on the site. There have been no schema changes. We haven't had a big spike in traffic. I've been looking at the processes running, and none seem out of control. I tried scaling our RDS instance from a small to a large, with no effect. Two days ago, Amazon had some outages. As part of the recovery from that, our RDS server, and our app servers ended up in different availability zones, but all within the same region. But yesterday, everything was fine so I'm not convinced that's related. The lock timeouts are in different types of requests and occur in different InnoDB tables. I have noticed the number of open connections jumped when we started seeing problems, but they may be a symptom and not a cause. What are my next steps in debugging this?

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• How do I get a D-Link DWL-G520 working?

  - by human33

  I have Ubuntu 12.04 on an older desktop PC, and I am finding it much harder to connect to a wifi connection than it should be. I have an iPhone with which I want to tether to it with Mifi 4.0, but I need to install ipheth which I can't do without internet on that computer. I am typing from my other windows pc with which i can download and move hings with thumb drives, but haven't gotten keryx to work. I also found a D-Link DWL-G520 HIGH SPEED 2.4GHZ (802.11G) WIRELESS 108MBPS PCI ADAPTER which I installed, but can't find a driver to put on a flashdrive to use it. If anybody has any ideas, they are appreciated. I am a noob, and I don't want to have to move the comp. downstairs to plug into the modem. PS: I also have a netgear USB network adapter, which doesn't work with my Ubuntu.

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• Is there a way to force the monitor to power off in Windows 8?

  - by Rune Jacobsen

  I have googled this a bit and looked at powrprof.dll and PsShutdown but I haven't found a way to do exactly what I want to do. You know that power save option that lets Windows turn off your monitor(s) if you haven't touched the system for x amount of time? Well, I have a PC that needs to be on most of the day (and night), and I have to watch it much of the time, so I can't have a short timeout for automatically turning off the monitor. However, once I leave it for a few hours (happens at varying times of the day), I would like to be able to issue a command that puts the computer in this mode. Not sleep mode, not hibernate mode. Monitor off, that is all. I realize of course I could just turn the physical monitor off. That is not what I want. This Dell monitor takes forever to display a picture from a cold state. If it is turned off by the computer not sending a signal - not so bad. Is there any way for me to do this? As mentioned, the OS can do it, so I would find it really useful if I could do it too. :)

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• Xerox 3100 mfp printer/ scanner not working not working

  - by Nikos

  I have installed the latest version of Ubuntu on my system. My problem is I cannot find the proper drivers for my printer/ scanner:Xerox Phaser 3100 MFP. Although it is recognised by the system and my print jobs appear as completed, in fact they are not. Also I have a problem with my wireless connectio. Although it is configured in the network settings, connection is not successful, unless I restart my router. What can I do? Thank you in advance

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• Add Multiple Types of Items to the Desktop Context Menu in Windows 7 or 8

  - by Lori Kaufman

  The context menu in Windows provides a convenient place to start programs, access websites, and open folders. There are several ways to add programs to the menu including a registry method and a free tool. We’ve found another free tool, called Right Click Context Menu Adder, that allows you to add more than just programs to the desktop context menu and the folders context menu. It allows you to add folders, web addresses, and files to the menus, as well as programs. Right Click Context Menu Adder is portable and doesn’t need to be installed. To run it, simply extract the .zip file you downloaded (see the link at the end of this article) and double-click on the .exe file. How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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• Google locking on Ubuntu

  - by user170534

  Problem I'm facing is that Google doesn't respond well timed to connection requests send from any browsers known to Linux. As far as I can tell, this was existent in Mint, which is Ubuntu based. I have no debug or guess about cause but I'm sure there are people with the same problem. ping of terminal is untouched but any other browser keeps unloaded, for example; google loads fine, I search for something. Then I decide to search for something else and ta daa: You gotta wait for 30 seconds for Google server to respond. I tried using google's public DNS without success. Flare the suggestions & ideas!?

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