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  • How to get automatic upgrades to work on Ubuntu Server?

    - by J. Pablo Fernández
    I followed the documentation for enabling automatic upgrades in Ubuntu servers, but it's not really updating anything at all. My /etc/apt/apt.conf.d/50unattended-upgrades looks almost like the default. // Automatically upgrade packages from these (origin, archive) pairs Unattended-Upgrade::Allowed-Origins { "Ubuntu karmic-security"; "Ubuntu karmic-updates"; }; // List of packages to not update Unattended-Upgrade::Package-Blacklist { // "vim"; // "libc6"; // "libc6-dev"; // "libc6-i686"; }; // Send email to this address for problems or packages upgrades // If empty or unset then no email is sent, make sure that you // have a working mail setup on your system. The package 'mailx' // must be installed or anything that provides /usr/bin/mail. Unattended-Upgrade::Mail "[email protected]"; // Automatically reboot *WITHOUT CONFIRMATION* if a // the file /var/run/reboot-required is found after the upgrade //Unattended-Upgrade::Automatic-Reboot "false"; The directory /var/log/unattended-upgrades/ is empty. Running /etc/init.d/unattended-upgrades start is not very nice: root@mozart:~# /etc/init.d/unattended-upgrades start Checking for running unattended-upgrades: root@mozart:~# Something seems to be broken, but I'm not sure why. I have pending updates and they are not being applied: root@mozart:~# aptitude safe-upgrade Reading package lists... Done Building dependency tree Reading state information... Done Reading extended state information Initializing package states... Done The following packages will be upgraded: linux-libc-dev 1 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Need to get 0B/743kB of archives. After unpacking 4096B will be used. Do you want to continue? [Y/n/?] In all the servers I have, unattended upgrades seems to have been disabled: root@mozart:~# apt-config shell UnattendedUpgradeInterval APT::Periodic::Unattended-Upgrade root@mozart:~# Any ideas what am I missing?

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  • How do emulators work and how are they written?

    - by Simucal
    How do emulators work? When I see NES / SNES or C64 emulators, it astounds me. Do you have to emulate the processor of those machines by interpreting it's particular assembly instructions? What else goes into it? How are they typically designed? Can you give any advice for someone interested in writing an emulator (particularly a game system)?

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  • If I re-key a SSL certificate for a 2nd/backup server, does the original still work?

    - by Matt
    We have a production server with a wildcard SSL certificate. I'm in the process of creating a backup/failover server that will host the same domains, and therefore will also need the SSL certificate. The certificate on the primary server was installed with the private key non-exportable, so I am unable to export the certificate for installation on the failover server. My question then is - if I re-key the certificate from Go Daddy, does the original certificate installed on the primary server cease to be valid? As an aside, the original (primary) server is IIS 6, the failover is IIS 7 (once the failover is operational, we'll likely upgrade the primary).

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  • Why click event not work when I click a image at runtime?

    - by jin
    Now I am developing a Firefox extension , and when web page I want to create a image at runtime, now I can show the image , but When I click it to invoke a method , why it is not work? it is my code: var _img = doc.createElement("img"); _img.setAttribute("id", "floatImage"); _img.setAttribute("src", "abc.jpg"); _img.setAttribute("onclick", "clickimage()"); document.body.append(_img); function clickimage() { alert("click"); }

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  • Port Forwarding: Why do my local sites on 80 work but not those on 8080?

    - by Chadworthington
    I setup my router to forward port 80 to the PC hosting my web site. As a result, I am able to access this url (Don't bother clicking on it, it's just an example): http://my.url.com/ When i click on this link, it works: http://localhost:8080/tfs/web/ I also forward port 8080 to the same web server box But when I try to access this url I get the eror "Page Cannot be displayed:" http://my.url.com:8080/tfs/web/ I fwded port 8080 the same way I fwded port 80. I also turned off Windows Firewall, in case it was blocking port 8080. Any theories why port 80 works but 8080 does not?

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  • Sending Mail from Web App to Google Apps won't work - internal routing? VPS

    - by Charlino
    I've got a web application, www.mysuperwebapp.com, which sends out emails for various reasons - the contact us page is a good example. I am using google apps on the domain and I've setup a google apps group, Support ([email protected]), which I want the emails from the contact us page to go to. But the emails don't seem to be sending... I thought it could be that the groups security is a little tighter than normal email, so I change the contact us email to go to [email protected] - but they still didn't appear. So I'm guessing that it has something to do with internal routing and the messages aren't leaving the server/network at all. Eg Sending an email from the mysuperwebapp.com computer to a mysuperwebapp.com email address. I put an entry into the hosts file for 123.123.123.123 mysuperwebapp.com but that doesn't seem to have helped. Also, there doesn't seem to be anything of interest in the event log. What do I need to do? Or what do I need to get my VPS hoster to do? TIA, Charles Ps. The VPS is a Windows 2008 box with IIS7 and the default SMTP (IIS6?) server. The web app is ASP.NET MVC - not that that should matter.

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  • I can't view my website in internet explorer browser after move from apache to nginx, while it work

    - by sauravdon
    After installation of nginx webserver, i run my website in firefox. It works good in firefox, i can see my website template is looks good, but in internet explorer it is not working properly, i can't see my webpage has text and images and every content in bad style. Like images are not loading, may be css is not working. Please help me to sort out this problem. Before this i was running my website on apache with different ip address and moved to nginx. Tanks saurav

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  • Jquery alternate row color doesn't seem to work after hover function...

    - by Pandiya Chendur
    I use the following jquery statements, $(".resultsdiv:odd").css("background-color", "#fff"); $(".resultsdiv:even").css("background-color", "#EFF1F1"); $('.resultsdiv').hover(function() { $(this).css('background-color', '#f4f2f2'); }, function() { $(this).css('background-color', '#fff'); }); Alternate seems to be ok initially but after hover over a div element it doesn't work ... Any suggestion...

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  • Will my Lenovo One Key Recovery work if I install Ubuntu on my Ideapad U410?

    - by dostiharise
    I own a Lenovo Ideapad U410. Being a game developer the first thing that I wanted to do is install Ubuntu. But I don't want to lose the Windows 7 that ships with the laptop. So, I wanted to know if the Lenovo One Key Recovery mechanism is capable of restoring the Windows 7, from the hidden recovery partition, after I install Ubunutu and enable Grub boot loader? Note: I am already aware that an alternative would be to create Factory Restore disks, to restore when necessary. But I cannot immediately do it unless I buy an External DVD Burner.

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  • Why would JmDNS service discovery work on a Motorola Droid running Android 2.1-update1 and not on an

    - by Churlbong
    I have successfully gotten JmDNS working on Android 2.1 testing on a Motorola Droid by using MulticastLock, but recently got an HTC Incredible as second test device, and JmDNS discovery doesn't work at all. I should mention that broadcasting a service still works and everything appears to run normally, but serviceAdded() never gets called. Does anyone have thoughts on why this might be? I was thinking it might be a permission issue, but I don't get any exceptions...

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  • Can't get intel atom g-500 video driver to work with ubuntu 10.10 netbook edition.

    - by Matthew
    First of all I am completely new to Linux, so if you respond, please do so in a 'linux for dummies' tone so that my brain will be able to process it. I recently installed ubuntu on my dell mini-inspiron 1010. It has one GB of ram and an intel atom processor that uses the intel 500 graphic accelerator driver for windows and can run 1024x768 comfortably in xp. When I was installing ubuntu had quite a bit of trouble with my display and I am still unable to adjust my settings from 800x600x0x0 and there is no hardware acceleration. I visited the intel site and installed the linux drivers with the help of a friend but still no change. I tried adding resolution settings through xconf but they could not be applied even after I added the values. I am probably going about this totally wrong, but I've spent quite a lot of time browsing through forums and still haven't found a solution. Any help would be greatly appreciated. Also any other beginner tips that you have would be much appreciated. Thanks in advance, Matt

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  • How to get two seperate remote domain controllers with same IP to work?

    - by Mr. Mister
    Hi, I have a VPN setup between multiple locations. Between each location and the central point (me), is a trust between our domain controllers. It all works great.. A new location wants to join, but their AD controller is using an IP address that is already in use by another AD in a separate location. Neither locations can change their IP addresses, but apparently there is a NAT rule that could be used to allow communication between each AD controller? The central site has a Cisco 5510 firewall which could perform the NAT, but I am unsure of the logic behind the NAT rule. Is anyone able to explain or help out? Thanks.

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  • How to get HTTP preseed to work correctly on Ubuntu 10.04 LTS (Lucid)?

    - by netvope
    Installation media: ubuntu-10.04-desktop-i386.iso I tried a lot of different boot parameters, but either the installer ignored the preseed configuration, or it boot itself directly as LiveCD. An example of the boot parameters I've tried: auto url=http://mydomain.com/path/preseed.cfg boot=casper only-ubiquity initrd=/casper/initrd.lz quiet splash -- If I remove only-ubiquity, it boots as a LiveCD. If I remove boot=casper, it won't boot. If I add vga=normal locale=en_US console-setup/layoutcode=us console-setup/ask_detect=false interface=auto, it still can't do automatic install. If I remove auto, it's the same. What is the correct boot parameters for launching such an installation? From the apache log of the server hosting preseed.cfg, I see that the installer has no problems fetching the preseed file. My preseed file is almost identical to the one at https://help.ubuntu.com/10.04/installation-guide/example-preseed.txt. Moreover, I have run debconf-set-selections -c preseed.cfg to ensure that the preseed file is correct.

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  • How can i get SSO for alfresco on windows-7 to work?

    - by Maarten
    domain AD on windows 2008 R2, linux server alfresco 3.4c, windows-7 client. I'm trying to get automatically logged into alfresco from the windows-7 client. I've looked with wireshark to see what happens: 1. Client goes to /alfresco 2. Server sends Redirect to page 3. Client goes to Redirected page 4. Server sends a WWW-Authenticate: Negotiate header 5. Client DOES NOT respond to this how can i configure the windows-7 client (or the AD domain) so that the client will in fact engage with the SPNEGO protocol? instead of just asking for user credentials? (the user is logged in through kerberos in the domain.)

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  • Does dual-channel work only with an even number of RAM sticks?

    - by iconiK
    I have noticed that on the ASUS P5QL Pro motherboard the BIOS says "Dual Channel Asymmetric Mode" during POST. The motherboard has three 2GB Kingston ValueRAM 800 MHz DIMMs populated in the first 3 slots from the CPU socket. I have not run any benchmarks to verify that dual-channel is somehow being used, but I believed that dual-channel has to have an even number of sticks (and for triple channel, a multiple of 3). Another example is the Intel DX58SO motherboard; it has four DIMM slots, yet it's an LGA 1366 motherboard which does triple-channel. Apparently triple-channel still works with four DIMMs, instead of falling back to dual-channel. What does the BIOS' POST message mean in those case? Is dual-channel really used for the first two DIMMs, with the other one being an odd one in single-channel mode?

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  • How to make Synaptics touchpad work better on Linux?

    - by whitequark
    I have Debian Squeeze currently installed on a Samsung N250 netbook with a Synaptics touchpad. These touchpads are, generally, good, and everything works perfectly on Windows. The support is extremely sucky on Linux through. Of course it has all the cool features like two-finger scrolling, but the cursor (or whatever is a replacement for cursor when scrolling) is trembling awfully. It trembles when I just keep the finger on touchpad, it shakes awfully if the finger is close to the top of touchpad, and when I'm scrolling with it (no matter with two fingers or one), the page shakes a lot too. None of this behavior is observed even in Windows XP with just the default drivers installed. Here's the Xorg version: $ Xorg -version X.Org X Server 1.7.7 Release Date: 2010-05-04 X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.32-5-686 i686 Debian Current Operating System: Linux mannaz 2.6.32-5-686 #1 SMP Fri Dec 10 16:12:40 UTC 2010 i686 Kernel command line: BOOT_IMAGE=/vmlinuz-2.6.32-5-686 root=/dev/mapper/mannaz-root ro quiet splash Build Date: 02 December 2010 01:08:37AM xorg-server 2:1.7.7-10 (Julien Cristau <[email protected]>) Current version of pixman: 0.16.4 and here is synclient -l output: http://pastebin.com/Eqa6hGXP

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  • PostgreSQL pg_hba.conf with "password" auth wouldn't work with PHP pg_connect?

    - by tftd
    I've recently experimented with the settings in pg_hba.conf. I read the PostgreSQL documentation and I though that the "password" auth method is what I want. There are many people that have access to the server PostgreSQL is working on so I don't want the "trust" method. So I changed it. But then PHP stopped working with the database. The message I get is "Warning: pg_connect(): Unable to connect to PostgreSQL server: FATAL: password authentication failed for user "myuser" in /my/path/to/connection/class.php on line 35". It is kind of strange because I can connect via phppgadmin without any problems and also I can connect from my home computer with psql - again without any problems. This is my pg_hba.conf: # TYPE DATABASE USER CIDR-ADDRESS METHOD # "local" is for Unix domain socket connections only local all all password # IPv4 local connections: host all all 127.0.0.1/32 password # IPv6 local connections: host all all ::1/128 password The connection string I'm using with pg_conenct is: $connect_string = "host=localhost port=5432 dbname=mydbname user=auser password=apassword"; $dbConnection = pg_connect($connection_string); Does anybody know why is this happening ? Did I misconfigured something ?

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  • How do I get basic ProxyPass to work on Apache 2.2.17?

    - by Ansis Malins
    I'm trying to get around the ERR_UNSAFE_PORT restriction in Chrome by making Apache reverse proxy other HTTP servers on the machine. I load mod_proxy with sudo e2enmod proxy I add ProxyPass /znc/ http://localhost:6667/ to my httpd.conf I restart Apache with sudo /etc/init.d/apache2 restart When I open up /znc/, I get 500 Internal Server Error. I added LogLevel debug, restarted apache, tried again, and got nothing suspicous: [Fri Oct 19 18:55:17 2012] [debug] proxy_util.c(1818): proxy: grabbed scoreboard slot 0 in child 21528 for worker http://localhost:6667/ [Fri Oct 19 18:55:17 2012] [debug] proxy_util.c(1934): proxy: initialized single connection worker 0 in child 21528 for (localhost) [Fri Oct 19 18:55:17 2012] [debug] proxy_util.c(1818): proxy: grabbed scoreboard slot 1 in child 21528 for worker proxy:reverse [Fri Oct 19 18:55:17 2012] [debug] proxy_util.c(1934): proxy: initialized single connection worker 1 in child 21528 for (*) [Fri Oct 19 18:55:17 2012] [notice] Apache/2.2.17 (Ubuntu) PHP/5.3.8 configured -- resuming normal operations [Fri Oct 19 18:55:17 2012] [info] Server built: Feb 14 2012 17:59:20 [Fri Oct 19 18:55:17 2012] [debug] prefork.c(1018): AcceptMutex: sysvsem (default: sysvsem) [Fri Oct 19 18:55:22 2012] [debug] proxy_util.c(1818): proxy: grabbed scoreboard slot 0 in child 21532 for worker http://localhost:6667/ [Fri Oct 19 18:55:22 2012] [debug] proxy_util.c(1837): proxy: worker http://localhost:6667/ already initialized [Fri Oct 19 18:55:22 2012] [debug] proxy_util.c(1934): proxy: initialized single connection worker 0 in child 21532 for (localhost) [Fri Oct 19 18:55:22 2012] [debug] proxy_util.c(1818): proxy: grabbed scoreboard slot 1 in child 21532 for worker proxy:reverse [Fri Oct 19 18:55:22 2012] [debug] proxy_util.c(1837): proxy: worker proxy:reverse already initialized [Fri Oct 19 18:55:22 2012] [debug] proxy_util.c(1934): proxy: initialized single connection worker 1 in child 21532 for (*) So I'm stumped at this point. What to do? I'm running Ubuntu Server 11.10. ZNC responds with a correct 200 OK and HTML when queried directly both from the local machine and the Internet.

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  • Passing JSP parameter to javascript won't work in IE8!

    - by Ronen
    Could really use with some help here... I've got a servlet that generates an XML string (relatively long) which I then pass to a javascript variable in a forwarded jsp file: $(document).ready(function() { ... var itXML = <% out.print((String)request.getAttribute("xml"));% ; ... } This seems to work just fine in Firefox but when I run the same project on IE8 I get a syntax error for this line. Any Ideas? Thanks!

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  • In TCP/IP terms, how does a download speed limiter in an office work?

    - by TessellatingHeckler
    Assume an office of people, they want to limit HTTP downloads to a max of 40% bandwidth of their internet connection speed so that it doesn't block other traffic. We say "it's not supported in your firewall", and they say the inevitable line "we used to be able to do it with our Netgear/DLink/DrayTek". Thinking about it, a download is like this: HTTP GET request Server sends file data as TCP packets Client acknowledges receipt of TCP packets Repeat until download finished. The speed is determined by how fast the server sends data to you, and how fast you acknowledge it. So, to limit download speed, you have two choices: 1) Instruct the server to send data to you more slowly - and I don't think there's any protocol feature to request that in TCP or HTTP. 2) Acknowledge packets more slowly by limiting your upload speed, and also ruin your upload speed. How do devices do this limiting? Is there a standard way?

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