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• Firefox generating error?

  - by Lynda

  I run Firebug on my computer since I develop websites. And I have been noticing this error consistently with every page I go to and I am lost as to what it is and believe it might be Firefox causing this error. Has anyone seen it before? Here is the error: An exception occurred. Traceback (most recent call last): File "resource://jid1-g0j5yenav9jwla-at-jetpack-api-utils-lib/tabs/tab.js", line 254, in null .getInterface(Ci.nsIWebNavigation) Error: Permission denied for <http://superuser.com> to create wrapper for object of class UnnamedClass

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• windows 7 is not working with Ubuntu 12.04

  - by Anand Soni

  I have one problem, I am unable to start windows 7 which is installed with Ubuntu 12.04 because I want to utilize all resource in diff. OS. Let me tell you the installation I have done. I have installed everything with USB because my CD ROM is damaged. 1) I have installed Windows 7 in c: then I have installed Ubuntu 12.04 in C: Now when I start my PC it shows list of OS first like -Ubuntu 12.04 -Windows 7 When I click on Windows 7 it do not starts and again shows the list of OS. I have also tried to reinstall the windows 7 using USB but it gives error of something UI or Boot configuration error. Even now Ubuntu 12.04 is also not reinstalling. Now what I want to do is install windows 7 and install ubuntu 12.04 in virtual box so that I can run both system as this is not working. But can't because I can't open Window 7 even can't format my drive. Please suggest something.

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• vps running out of memory, 200MB free

  - by demon

  At the beginning of this year I took a VPS for my website because I was running against the resource limits from a shared hosting. Here are the things I know: 2GB memory, with 1GB swap Debian X64 server ED installed Software running on the webserver: mysql apache postfix pop3 imap amavisd clamd cron fail2ban munin-node pure-ftpd spamd nginx Now for the setup: Nginx listens on port 80 and handles the static files, the php side is done by apache2 running mod_php in combi with apc(no var caching!). Iam using a pretty 'busy' drupal and phpbb stack on the server, for drupal iam using boost and authcache to handle of the server load with a pressflow stack. phpbb is just phpbb3 with some mods installed, but has at max 30 users online at a time.. The problem is that its staring to use the swap after a few days after a reboot and thus the site becomes slower. I'v added pictures of monit and munin, so maybe somebody can help me out... Monit: Munin:

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• Why is ext3 so slow to delete large files?

  - by Janis Peisenieks

  I have a server, which makes an incremental backup of a system every night. Now on saturdays, there is a full backup. But after the full backup has finished, a script kicks in, that deletes the incrementals. Now, the script sometimes breaks, and it is because the incrementals are each about 10GB files, and sometimes takes too long for the script. Now could someone explain to me, or point me in the direction of a resource, that explains why ext3 is so slow to delete files, when compared to, lets say, NTFS? I know theses are 2 completely different file systems, but I'm really interested why is there such a big difference in deletion?

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• Identify an instance of Google Chrome by PID

  - by Laramie

  While working I generally need around 40 windows open at a time and run 100-200 processes. When memory constraints become an issue, I start picking off the processes that are the most resource intensive and disposable. Often these are chrome.exe. It would be helpful to be able to match a particularly memory-hungry instance of chrome to it's PID so I can selectively close it. That is, if I knew what the page title it is currently open to, I could choose whether it lives or dies. I've tried Process Explorer to no avail. Any ideas?

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• Resolve `strace` file number to a filename

  - by Mike Pennington

  I am debugging a problem where MoinMoin on CentOS is throwing a permissions error, but I can't track down where the problematic file / directory is. I ran strace -vp <pid> on the apache pid; when I have the problem I see this: epoll_wait(10, {{EPOLLIN, {u32=3487534344, u64=140367313734920}}}, 2, 10000) = 1 accept4(6, {sa_family=AF_INET6, sin6_port=htons(52621), inet_pton (AF_INET6, "::ffff:105.193.30.91", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, [28], SOCK_CLOEXEC) = 11 ## Later on... read(7, 0x7fffa658ad7f, 1) = -1 EAGAIN (Resource temporarily unavailable) However, since apache is already running, I see no corresponding open() on the file referred to as 7; thus I see the permissions problem, but I still don't know which file is the problem. I know I could try to catch all the file opens when I respawn apache, but I'm hoping there is a way to map file 7 to a real filename... is there a way to do this?

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• Lync client configured as room

  - by captainmish

  We have a few usb cameras in meeting rooms that people can plug their laptops into, which works ok, but we're looking for better... Probably a long shot, but does anyone know of a way to have something like a "common area" client, where a PC connected to a webcam and speakers/mic can become a bookable resource, dragged in to conversations and automatically show video? A workflow I imagine: User books a room with "special" lync client as attendee Meeting time comes, they go to the room and fire up lync on their pc "special" lync client automatically (or is dragged in) joins and starts video, local attendees use audio and video from the special client Any tips welcome!

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• Granting rights on postgresql database to another user

  - by Austin

  I'm trying to set up a system with a PostgreSQL database per user, with a PHP-FPM resource pool for an associated account. I need to grant all privileges on the database to the other user, but it seems that it's only possible to do this for tables. I've tried grant all privileges on database username to username_shadow but this gives only limited privileges. I've upgraded to PGSQL 9.2, which has the ability to grant privileges on schema, but I can't get a useful result. How do I simply make another user have all the privileges of the first on the same database?

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• How to fix this error 'cvs [checkout aborted]: no such tag r20120711' on php eclipse helios?

  - by Manu-dra-kru

  I am using php eclipse helios for debugging php code and using CVS as repositiry. Under CVS repository there are 3 - head branch version and head conatins the repository of server. Under head again I have 3 bms cvsroot news4u To create a new branch I used to click on news4u and select a option 'add to branch list'. But accidently I selected 'Tag as version' with name r20120711 and after that I have created a branch by same name. Now if check out is taken, it gets check out partially and gets failed and if tried to commit the resource, it says, 'no tag is found by that name'. How to fix this.

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• How to fix this error 'cvs [checkout aborted]: no such tag r20120711' on php eclipse helios?

  - by Manu-dra-kru

  I am using php eclipse helios for debugging php code and using CVS as repositiry. Under CVS repository there are 3 - head branch version and head conatins the repository of server. Under head again I have 3 bms cvsroot news4u To create a new branch I used to click on news4u and select a option 'add to branch list'. But accidently I selected 'Tag as version' with name r20120711 and after that I have created a branch by same name. Now if check out is taken, it gets check out partially and gets failed and if tried to commit the resource, it says, 'no tag is found by that name'. How to fix this.

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• cannot access my own computer through My Network Places

  - by WebMAOhist

  My home Windows XP Pro SP3 machine is DHCP client receiving configurations from ISP. Trying to access in WindowsExplorer -My Network Places - Microsoft Windows Network shows Workgroup with a delay of 3 min and then popups messagebox: Microsoft Windows Network Workgroup is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions.The list of servers for this workgroup is not currently available OK I am logged-in as local machine Administrator. The internet is accessible (I am writing this post through it) The Firewall is disabled The "Computer Bowser" and all networking services, I could find, are running Control Panel -- Network Connections -- Properties (of connection) --- Internet Protocol (TCP/IP), btn Properties --- --- tab General, btn "Advanced..." -- tab WINS-- rbtn "Enable NetBIOS over TCP/IP" checked Why cannot I access my own PC (and shares on it) through My Network Places What is the possible problem? How to daignose the problem?

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• Does Dreamweaver subversion support branching?

  - by John Isaacks

  Adobe Dreamweaver added support for subversion in CS4. I have CS5, I am able to update and commit, they even have a very easy rollback option where you can promote any revision number to "head" but I cannot figure out anyway to branch using it. According to Adobe their subversion support is not full featured. But I cannot find any resource that stats what all is supported. So is branching one of the things not supported? (I kind of feel like whats the point without branching?) If you can do it, how?

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• Do any filesystems support multiple forks / streams on directories?

  - by hippietrail

  Apple's HFS+ supports multiple forks such as the old data and resource forks. NTFS supports alternate data streams. I believe some *nix filesystems also have some support for multiple file forks or streams. Given that directories (folders) are just a kind of file at the filesystem level, I'm wondering if any of the filesystems which support this feature support it for dirs as well as files? (Or indeed directories in the alternate forks / streams?) I'm mostly asking out of curiosity rather than wanting to use such a feature. But one use it would have would be additional metadata for directories, which seems to be the most common use for these streams for files currently.

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• nginx + IIS + GET

  - by Eralde

  I have nginx on pc "A" & IIS with ASP.NET on pc "B". nginx is configured like this: ... location ~ ((Web|Script)Resource.*)$ { proxy_pass "B"/$1; proxy_redirect off; proxy_set_header REMOTE_ADDR $remote_addr; proxy_set_header REQUEST_URI $request_uri; proxy_set_header HTTP_REFERER $http_referer; #proxy_set_header REQUEST_URI $request_uri; proxy_set_header QUERY_STRING $query_string; proxy_set_header X-Real-IP $remote_addr; proxy_set_header Host $http_host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; }... but requests to "B"/WebScript?a=b&c=d aren't able to deliver GET data (a=b&c=d) to IIS part. Could anyone help with this?

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• ideal memory configuration 4 bank, ddr3, AM3+ FX - 1 vs 2 vs 4 dimms?

  - by TardisGuy

  Ok, so ive been looking around, trying to learn and understand the way that ram works. Ive gotten one answer that said "The addressing is best for 2 sticks, and when you use 4; it slows down" Another answer said something like: Theres bank/channel interleave that makes the memory read like one stick Also I read something about the memory density also being a factor. I dug further and found out that theres a higher speed limit on my board for 2 sticks vs 4, so now im trying to put an image in my head of how and why, and... pfft. Can anyone explain, or recommend a resource that would answer these questions?

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• Determine display or VNC session based on PID

  - by Daniel Kessler

  I frequently VNC into a server where we run many concurrent computationally intensive matlab processes. Sometimes, one of my processes misbehave, which I can see from top, but I have a hard time figuring out which VNC session it's running on, or more specifically, which display it's running on. Suppose I see that PID 8536 looks like a resource hog, and I want to investigate. Because it's a matlab session, I know there is likely an IDE open somewhere, and I want to check to see if anything important is happening before I kill it. We've solved this somewhat awkwardly in the past by identifying which PTY 8536 was launched from, then looking at a process tree to figure out things launched in that context, scrolling up, and seeing the VNC initialization. Seems like there must be a better way to go PID - X Display (or VNC Session).

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• How can I find out what's uploading traffic to the internet?

  - by Nick G

  Some program I'm running is constantly uploading to the Internet. It's uploaded 300MB in the last few hours. I could reboot and see if it stops, but I'd prefer to find out what it is if possible. I've tried using the resource monitor but it's totally nonsensical - even if I run a broadband speedtest, it barely registers any traffic. Ideally I'd like to find a tool which can tell me the current bandwidth of each application. I think NetLimiter used to work on XP but it's not supported for Windows 7.

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• Tomcat's connection pool opens only 20 connections to mysql

  - by stck

  I have a java application with following line in context.xml <Resource driverClassName="com.mysql.jdbc.Driver" maxActive="100" maxIdle="30" initialSize="10" maxWait="7000" name="jdbc/app" password="pass" type="javax.sql.DataSource" url="jdbc:mysql://dbhost:3306/dbname?autoReconnect=true" username="user" validationQuery="SELECT 1" removeAbandoned="true" removeAbandonedTimeout="30" logAbandoned="true" /> In mysql 'show variables' tells me that max_connections is 151. Still, use information_schema; select count(*) from processlist where User = 'user'; never shows me more than 20 connections. On tomcat's catalina.out -log I get Caused by: org.apache.tomcat.dbcp.dbcp.SQLNestedException: Cannot get a connection, pool exhausted at org.apache.tomcat.dbcp.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:103) at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:540) at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:113) at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79) What should I check for to find the problem?

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• Installing DB2 in Windows 2003 Cluster

  - by radoslawc

  How can I install db2 with already created domain user? Or maybe there is no need, just install with local user db2admin and then create instance using existing domain user? This is how it looks I've got win 2003 cluster single quorum, I have to move db2 database to another cluster in same domain. I've added resources to new cluster like in IBM redbook, and I have problem adding db2 resource. I've got service account DOMAIN\serviceaccount and DOMAIN\db2_instance owner, to install db2 do I have to log in as db2_instance_owner? Thanks in advance

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• Unauthorized access error to html pages in IIS 7.0

  - by George2

  I am using VSTS 2008 + C# + .Net 3.5 + IIS 7.0. I have created a new web site and put an html file into the directory. And when I use browse function in IIS manager to browse the html file, I met with the following error, any ideas what is wrong? BTW: I am very confused about unauthorized error since I run the worker process under administrator account. From the error message, I am confused why the logon method is anonymous and not using administrator account? HTTP Error 401.3 - Unauthorized You do not have permission to view this directory or page because of the access control list (ACL) configuration or encryption settings for this resource on the Web server. Module IIS Web Core Notification AuthenticateRequest Handler StaticFile Error Code 0x80070005 Requested URL http://localhost:80/a.html Physical Path C:\test\simplehosttest\a.html Logon Method Anonymous Logon User Anonymous thanks in advance, George

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• Hyper V cluster - one VM won't migrate

  - by Chris W

  We have a Failover Cluster built up on 6 blades, each running Hyper V. Each box is running Server 2008 R2. We've got a number of VMs running that all have the same basic config: VHD stored on a cluster shared volume. 2 virtual NICs (1 for LAN connection and 1 for SAN connection). All of our VMs will happily migrate between any other blade apart from one single VM which is running fine on it's current blade but will not migrate to any other location. What could be the cause of it or where should I look to get a detailed error message as I can't seem to find much information logged in any of the logs. Edit: I know the usual culprit is mis-matching resource names. We've already been there with the NICs named differently on some of the blades. As far as we can tell now everything looks to be identical on each bit of metal.

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• Why is Chrome receiving data?

  - by Aero

  Chrome seems to be continually receiving data even though I'm not downloading anything. This is making a noticeable impact on my browsing speed. The first screenshot shows Chrome receiving data even though I'm not downloading anything (nor buffering a YouTube video etc.) Even after I completely close Google Chrome, the "chrome.exe" remains in the Resource Monitor list and the "Received bytes" column continually increases in the screenshot below. However, "chrome.exe" does not show up in the Processes tab of Task Manager. This only occurs sometimes, but I don't know why. I have tried running a malware/virus scans to ensure that there is nothing malicious behind this, but those scans have shown nothing. Any ideas on what's causing this?

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• Accessing C$ over LAN on Win2008R2 - cannot by hostname but can by IP and FQDN

  - by Idgoo

  Having an issue with one of our Win2k8 R2 file servers. Trying to access C$ or the Admin share is giving us an error (see error details that the bottom), however we are able to connect using the server's IP and FQDN. can access \\172.16.x.x\c$ with domain cred can access \\server.domain.local\c$ with domain creds cannot access \\servername\c$ with same domain creds Server pings fine with Hostname, IP, FQDN, the Primary DNS suffix is also correct. DNS, PTR and Wins records are all correct for the Server I have checked that I am not trying to connect with cached credentials in the Windows vault, the server is also appending primary and connection specific DNS suffixes to the hostname. Any ideas what might be causing this issue? Error Details: c$ is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions

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• Kerberos authentication between 2 applications

  - by Spivi

  We work on a server 2003 and server 2008 R2 enviroment. I'm familiar with the basic usage of the Kerberos protocol where the protocol authenticates a client when he tries to use a shared resource (server, folder, printer, etc.). We have three distinct and independent .NET applications that we develop inhouse (app A, app B & app C) but they need to communicate for a given reason (A recieves messages only from B and C and C recieves messages only from B). Is it possible to configure the Kerberos services to authenticate messages/request between two .NET apps ? (Instead of a user-server authentication, we will have an application-application authentication)

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• overload environment

  - by Richo

  I've recently switched across to nesting my home directory across all my machines in an svn repo, meaning that my utility scripts, configuration (irssi, vim, zsh, screen etc) as well as my .profile and so forth are easier to keep up to date across all the places I login. I use a set of sourced .local files to override them on a per site basis as required. As it stands, many of my scripts inherit some form of configuration, and for the most part I've been setting an environment variable in .profile, and then if needed on a per site basis overriding it in .profile.local This works great, but are there pitfalls in having a stack of environment variables? If I take my default environment from within an X session before any of my personal configuration I have not even increased it by 50% but some of the machines I work on are low resource, am I bloating my system unneccessarily, or being needlessly paranoid? Should I start moving this config into seperate flatfiles that are loaded as needed? This means extra infrastructure, or alternately writing a single module for storing config that all of my utilities can inherit.

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