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• What is the package name for JVM?

  - by JohnMerlino

  If I want to know if skype is installed, I would type this: viggy@ubuntu:~$ apt-cache policy skype skype:i386: Installed: 4.0.0.8-1 Candidate: 4.0.0.8-1 Version table: *** 4.0.0.8-1 0 100 /var/lib/dpkg/status Or if Eclipse is installed: viggy@ubuntu:~$ apt-cache policy eclipse eclipse: Installed: (none) Candidate: 3.7.2-1 Version table: 3.7.2-1 0 But let's say I want to know if the Java Virtual Machine is installed. How would I know what to pass to apt-cache policy? For example, you might not know what to pass to apt-cache policy for some programs: viggy@ubuntu:~$ apt-cache policy java N: Unable to locate package java viggy@ubuntu:~$ apt-cache policy JVM N: Unable to locate package JVM

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• Unable to remove a file which have a name like a command argument

  - by Justin

  By inadvertance, I've created a file called -r into my home directory. Please don't ask me how and why, I don't recall. But the fact is that now I cannot get rid of it : rm -rf rm: missing operand Try 'rm --help' for more information. Other try : rm /-/r rm: cannot remove ‘/-/r’: No such file or directory Another one : rm \-r rm: missing operand Try 'rm --help' for more information. Is there a way to remove this file without deleting the whole directory ? Thanks.

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• How can I redirect all files in a directory that doesn't conform to a certain filename structure?

  - by user18842

  I have a website where a previous developer had updated several webpages. The issue is that the developer had made each new webpage with new filenames, and deleted the old filenames. I've worked with .htaccess redirects for a few months now, and have some understanding of the usage, however, I am stumped with this task. The old pages were named like so: www.domain.tld/subdir/file.html The new pages are named: www.domain.tld/subdir/file-new-name.html The first word of all new files is the exact name of the old file, and all new files have the same last 2 words. www.domain.tld/subdir/file1-new-name.html www.domain.tld/subdir/file2-new-name.html www.domain.tld/subdir/file3-new-name.html ect. We also need to be able to access the url: www.domain.tld/subdir/ The new files have been indexed by google (the old urls cause 404s, and need redirected to the new so that google will be friendly), and the client wants to keep the new filenames as they are more descriptive. I've attempted to redirect it in many different ways without success, but I'll show the one that stumps me the most RewriteBase / RewriteCond %{THE_REQUEST} !^subdir/.*\-new\-name\.html RewriteCond %{THE_REQUEST} !^subdir/$ RewriteRule ^subdir/(.*)\.html$ http://www.domain.tld/subdir/$1\-new\-name\.html [R=301,NC] When visiting www.domain.tld/subdir/file1.html in the browser, this causes a 403 Forbidden error with a url like so: www.domain.tld/subdir/file1-new-name-new-name-new-name-new-name-new-name-new-name-new-name-new-name-new-name-new-name-new-name-new-name-new-name.html I'm certain it's probably something simple that I'm overlooking, can someone please help me get a proper redirect? Thanks so much in advance! EDIT I've also got all the old filenames saved on a separate document in case I need them set up like the following example: (file(1|2|3|4|5)|page(1|2|3|4|5)|a(l(l|lowed|ter)|ccept)

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• Current trends in Random Access Memory speed [closed]

  - by Vetal

  As I know for now because of laws of Physics there will be not any tangible improvements in CPU cycles per second for the nearest future. However because of Von Neumann bottleneck it seems to not be an issue for non-server applications. So what about RAM, is there any upcoming technologies that promise to improve memory speed or we are stack with the current situation till quantum computers will come out from labs?

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• How to change the computer name on a server configured by Puppet

  - by David Sulpy

  I am new to Puppet and I'm trying to get Puppet to configure my EC2 instances after they're started from a Cloud Formation Template in AWS. The problem is that all the nodes that get started from the Cloud Formation Template all have the same name (the name from the AMI that the new nodes derive from). I would love to find a way to have puppet rename the nodes when the nodes start up. (although, as far as I know, a Computer Name change requires reboot, a separate issue...) If you can point me to some documentation that can help me figure this out or if you have any ideas that would be great. My ultimate goal is to have each EC2 start with a unique name so that I can use New Relic server monitoring to report the different servers.

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• Domain name made of keywords redirecting to main website's page

  - by ivanivan

  Let's say I have a website called books.com where I sell books. I've read on Redirecting different domains to your main site that it's not a bad idea to register another domain that does a 301 redirect to my website, like booksforsale.com. Now, say I want to only target a specific category withing my website, like books.com/sci-fi/ so I register sci-fi-books.com and do a 301 redirect. Would this improve my search rankings? Thanks.

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• ERROR_PROCEDURE Does Not Return a Schema Name

  "A recent blog entry I read reminded me again that I wanted to rant about an issue in SQL Server for quite some time now. SQL Server 2005 introduced the separation between user and schema. Though schemata already existed before SQL Server 2005, they really became usable with this version, imho. At the same time TRY...CATCH was a new way for structured error handling introduced. And so it finally became possible…" NEW! SQL Monitor 2.0Monitor SQL Server Central's servers withRed Gate's new SQL Monitor.No installation required. Find out more.

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• Random timeout now and then

  - by KenavR

  Maybe this is a to generic question, but since we have this issue for quite a while now, I give it a shot. We have some applications which use HTTP for the connection between the client (website or fat-client) and the server. The Computer who runs this applications is in a Network behind a firewall and a proxy, the server isn't inside the same network. The problem is that every now and then the https Request times out and depending on the Client the Application "hangs" or does some other funky stuff. The problem is definitely inside our network, because if i try the applications outside our network it works fine. Can you give me a hint where i can most likely find the problem?

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• Unittest test case only touches the file name

  - by Chen OT

  I was told that unittest is fast and the tests which touches DB, across network, and touches FileSystem are not unittest. In one of my testcases, its input are the file names (amount about 300~400) under a specific folder. Although these input are part of file system, the execution time of this test is very fast. Should I moved this test, which is fast but touches file system, to higher level test?

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• Could not use domain name instead of static IP

  - by Nam Gi VU

  Hi, I'm working with some partners in the UK. My office is in Vietnam. We are having a network problem: My partner can access an internal website using the domain name, e.g. http://website.name, but I can only access that website using the direct IP, e.g. 192.168.1.85. I can not ping that web server using "ping website.name" but it works if I using "ping 192.168.1.85". I want to use the domain name. Please help.

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• DNS Pointer to old server name

  - by TechKnow Dude

  We have a SBS2003 server that was migrated to a new hardware platform, the computer name has changed but the domain is the same. The desktop's are trying to do offline files to the old server name. There is a nslookup entry for the old server name and a DNS entry for the old server. How do we safely remove the old DNS entry without breaking the computer offline folder storage locally. Can we change the pointing location on the offline file storage to point to the new server name.

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• Can't browse computer via nlb cluster name

  - by peg_leg

  I have a fileserver nlb cluster, currently set to single affinity, made up of 2 2008R2 servers. We switched the primary node today. Now our Windows XP workstations can't browse to the cluster name (i.e. \fileserver) but can browse to the cluster ip address (i.e. \192.168.1.1) and can browse the member server by name (i.e. \filesvr1). I remember having a similar issue when we had to change a registry setting to allow Windows XP boxes to see another file server that was in a failover cluster but had to be referred to by another name (\thisfileserver instead of \fileserver). Convoluted, for sure, but it helped to prevent any code changes from happening. Well all of the programmers have their code on \fileserver and we can't have them switch their links every time \filesvr1 supercedes \filesvr2 or vice versa. I can't remember that registry setting that allowed the file server to ignore that it's being called by the wrong name. HELP!

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• Copying first 1000 PDF files having single, double quotes in their name to another folder

  - by racer_ace

  I am having this folder with PDFs into it and I need to process 1000 at a time. So I need to move them into another folder, process them and delete them. For this I tried using $ find . -maxdepth 1 -type f |head -1000|xargs cp -t $destdir It gives error on single and double quotes in filename. There are thousands of files and I have no idea how many of them has these quotes in them. Can anyone help me find a solution? And I tried with the -0 option, it did not work

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• Mac OS X set terminal name that persists after SSHing somewhere else

  - by djechlin

  I try advice like this that recommends adding the following to your .profile: function tabname { printf "\e]1;$1\a" } So you can type tabname brokenbox to name your tab. The problem is as soon as I also type ssh [email protected] and log in, it wipes the tab name. I want a tab name that's as persistent as the tab, not the level of session I happen to be in. Is this possible? I don't even know what layer that data lives in.

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• desktop-name ("Ubuntu Desktop")

  - by user109581

  i see someone asked how to change in unity top left corner label (ubuntu desktop) there is an answer but it is no very clear, can someone explain it with more details, i am pasting the answer that was posted but i need more directions, thanks You would likely need to build the unity or unity-2d source. Currently in unity-5.12 would be found in /plugins/unityshell/src/PanelMenuView.cpp, line 78 _desktop_name(_("Ubuntu Desktop")) In unity-2d, unity-2d 5.12, /panel/applets/appname/appnameapplet.cpp line 369 d-m_label-setText(u2dTr("Ubuntu Desktop"));

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• Random TCP Resets

  - by allenwei

  We got randomly TCP "reset" error when we send request to remote server. Log from remote server Cisco TCP Connection Terminated,Nov 05 14:43:39 EST: %ASA-session-6-302014: Teardown TCP connection 640068283 for Outside:xxxx to xxxx duration 0:00:00 bytes 4160 TCP Reset-O One my local machine I saw when I use netstat 100703 connections reset due to unexpected data 324186 connections reset due to early user close I also use tcpdump to see what's wrong with it, I saw xxxx.https: Flags [R.], seq 290, ack 1369, win 136, options [nop,nop,TS val 2871790533 ecr 1897173283], length 0 The problem just happened today, we didn't change anything on our server. Anyone know what's wrong with it? Is it related to code we wrote send out request or related to linux configuration?

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• SEO - Does Everybody Know Your Name?

  As a business owner, or one working in a particular industry, branding, SEO and reputation management are essentials to success. Learn about the importance of proper search engine optimization for your business or corporation and how it can help you push ahead of your competitors.

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• Can't resolve Mac's machine name on VPN

  - by Raghuveer

  My mac'c machine name is something like this: hostname.company.com but whenever I connect to VPN, it becomes something like vpn-xxxx.company.com where xxxx are some random numbers. Because of this, some of my scripts which are dependent on host name gets blocked. We use the standard mac's vpn setup which comes with OS X Lion (under network preferences). How can I resolve to the correct mac's name even if I am on vpn ? That is even if I am connected to VPN, my machine name should resolve to hostname.company.com and NOT to vpn-xxxx.company.com. Any suggestions would be really appreciated.

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• How To Setup Domain Name for SchoolTool Local Server

  - by zeroseven0183

  I am currently testing SchoolTool 2.0 and I would like to do some things: This application is installed on a virtual machine running Ubuntu Server 11.10 bridged to our home network. The site is accessible through IP address. What I would like to do is setup a local domain, say schooltool.ourhomedomain.com. I thought my sister would appreciate it more if it were not via IP address. If there's anymore information needed, let me know. Thanks in advance!

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• SQL Server 2000 Enterprise Edition - Login Fail for User (computer Name)/Guest

  - by Nazmuzzaman Manna

  Hi: Subject: SQL Server 2000 Enterprise Edition, windows XP Log-in fail for odbc sql server user computer name/guest I am connecting for several computer with the VB6 application with following connection string "PROVIDER=MSDASQL;driver={SQL Server};server=Computer Name.;uid=;pwd=;database=Test Name;" BUT, just Three Computer not Log-in. This three (connected with each other) are completely separate in other Room. I checked all possible options. Besides, which option is missing??? Please Help me...

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• Random HTTP 413 error on apach2/php/joomla site

  - by jfab

  I have a Joomla site, and every once in a while when I submit something via a form, I get a HTTP 413 error: Request Entity Too Large The requested resource /index.php does not allow request data with POST requests, or the amount of data provided in the request exceeds the capacity limit. In the error.log file I get: Invalid Content-Length, referer: [site]/index.php It doesn't seem this has anything to do with the actual size of the request, for the following reasons: a) I tinkered with the configuration of both Apache, and PHP. In Apache I tried increasing LimitRequestBody, and in PHP post_max_size, max_input_vars, memory_limit, and even upload_max_filesize. Every value is far beyond what is sent in a typical request that generates an error. b) The error pops up quite randomly, and often just hitting refresh allows me to get through. c) I checked the request in Fiddler to make sure everything is right with the content-length stated in the header, and the content of the request itself. Everything appears to be in order. A curious thing is that when I resent the exact same request via Fiddler, I never got the error. It seems I can only recreate it through a browser. So I'm at my wit's end here. I don't even know where to look for the problem anymore. I don't know if it's Apache or PHP (though I can't find anything in PHP error logs, so maybe that means Apache is the more likely culprit?), or PHP in general, or my Joomla site in particular (my bets were on Joomla until a recreated the error on a test script, with a very basic post form, though it does pop up much more often on the Joomla site). If anyone can give any advice on where to even begin with this, I'll be very grateful!

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• Seemingly random disconnections on Windows Server 2008 R2

  - by bobblez

  So I have a box running a Windows Server 2008 R2 in my LAN, which is running, among other things, a voip server used by other people. I myself am in the same subnet with the server, while the other users are not. Now, maybe on average twice a day, all the other users get disconnected from the server (and if I take a remote desktop connection to it, I'm not able to open any web pages either). These disconnections usually last only about 5 seconds, but sometimes they may last up to a minute. What could possibly cause this? I have all the updates installed from windows update and the motherboard of the server is asus p5b deluxe (if that is of any interest). edit: Forgot to mention that my own internet connectivity stays intact while the server's does not, and both computers are behind the same router.

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• VPS name server

  - by rockey

  I bought a new VPS, and configured two applications test1.com and test2.com on ngix server, now I can access both the application inside VPS, Now I need to invoke the application from other machines. MY domain is registerd with Enom, So I added 'A' name pointed to IP address of the VPS, Currently my VPS is not providing any Name Server, So what steps need to be done to resolve the issue regarding Name Server so that i can externally invoke the domains like www.test.com and www.test2.com from other machines? Is any configuration is left from my side other than configuring the Name Server? because it is not working now Thanks in advance

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• Why You Need To Register A Domain Name For Your Business

  If you have decided on a new online venture and are all set to realize your dreams, the first thing you need to take into consideration is domain registration. It is a must for online businesses to e... [Author: Grant Mannix - Web Design and Development - April 07, 2010]

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• Generate random number from an arbitrary weighted list

  - by Fernando

  Here's what I need to do, I'll be doing this both in PHP and JavaScript. I have a list of numbers that will range from 1 to 300-500 (I haven't set the limit yet). I will be running a drawing were 10 numbers will be picked at random from the given range. Here's the tricky part: I want some numbers to be less likely to be drawn up. A small set of those 300-500 will be flagged as "lucky numbers". For example, out of 100 drawings, most numbers have equal chances of being drawn, except for a few, that will only be picked once every 30-50 drawings. Basically I need to artificially set the probability of certain numbers to be picked while maintaining an even distribution with the rest of the numbers. The only similar thing I've found so far is this question: Generate A Weighted Random Number, the problem being that my spec has considerably more numbers (up to 500) so the weights would get very small and supposedly this could be a problem with that solution (Rejection Sampling). I'm still trying it, though, but I wonder if there other solutions. Math is not my thing so I appreciate any input. Thanks.

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