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• apt-get could not open lock file

  - by user114373

  I am trying to get an nfs client running on a Sheeva-plug running debian 2.6.22. The host is Ubuntu 12.04 and claims (from showmount -e) to be exporting the desired directory. There is no showmount binary in the sheeva-plug, so I'm trying to install it from the nfs-common package: # apt-get install nfs-common The response ends with E: could not open lock file /var/cache/apt/archives/lock - open (no such file or directory) E: Unable to lock the download directory. I am root while doing this. Similar errors arise when trying to install other packages. How do I correct these errors so apt-get will do its work?

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• Languages and tools that are "portable" (work well from a USB storage drive) [closed]

  - by CodexArcanum

  I'm a huge fan of running programs from my portable hard drive: it means I always have my favorite tools no matter what computer I'm on. Sadly, development tools seem to be hard to get portable at times. I recently realized that the "portable" version of MinGW I was using off my USB drive was actually interfering with a locally installed version of MinGW, so sometimes even the tools you think are portable, aren't. So what are the best portable development tools that you've used? What runs well on a portable media, leaves the host machine clean, and generally makes moving around easier for you?

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• Oracle Event: Database Enterprise User Security

  - by user12603048

  One of the high-value benefits of an integrated Identity and Access Management platform is the ability to leverage a unified corporate directory as the primary authentication source for database access. On July 11, 2012 at 08:00 am PDT, Oracle will host a webcast showing how Enterprise User Security (EUS) can be used to externalize and centrally manage database users in a directory server. The webcast will briefly introduce EUS, followed by a detailed discussion about the various directory options that are supported, including integration with Microsoft Active Directory. We'll conclude how to avoid common pitfalls deploying EUS with directory services. Discussion topics will include Understanding EUS basics Understanding EUS and directory integration options Avoiding common EUS deployment mistakes Make sure to register and mark this date on your calendar! - Click here to register.

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• Hosting a Small PHP/MySQL Project [closed]

  - by paulrehkugler

  I have a small PHP/MySQL project in the works and I'm looking for somewhere to host it. My criteria are: Ability to run PHP/MySQL (either natively, or contains the ability to install). Ability to manipulate the web server, so I can make pretty URLs. Not spammy (if you've ever looked for hosting, you know what I mean). Semi-professional - no ridiculous downtime or long response time. I obviously don't need anything spectacular (I'm not aiming to be the next Facebook) but something that doesn't seem cheap. Reasonably priced - obviously this is a side project for fun so I'm not planning on making or dispensing any sort of "serious" revenue.

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• Ubuntu VM cannot start after Kernel upgrade

  - by AAz

  Several Ubuntu 10.04 VMs were restarted after few months and began getting "Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)" message. Restoring those VMs from backup (to the "paused" state) allows to boot normally. However restarting the VM again results in the mentioned error message. I suspect it's the updated kernel version (2.6.32-37-server, 2.6.32-38-server) that misbehave - another Ubuntu VM (that's used as template for those failing VMs) still has 2.6.32-24-server and reboots fine. We're using HyperV (2008R2) as the server host. Nothing were changed in it's configuration. Has anyone faced this issue, please advise the solution. Many Thanks in advance!

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• enable iptables firewall on linux

  - by user13278061

   Here is a very basic set of instruction to setup a simple iptables firewall configuration on linux (redhat) Enable firewall log as root thenenter the following command, it launch a text gui #> setup first screen: Choose firewall configuration second screen: choose "Enabled" then "Customize" third screen: select you interface in "Trusted Devices", select "Allow Incoming" for "SSH" "Telnet" "FTP" (add eventually other ports, then press "OK" (2 times, then "Quit") At that point the firewall is enabled. You can start/stop/monitor using service iptables start/stop/status Change timeout to changed the tcp established connection timeout #> echo 120 >    /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_established Monitor connection in iptables tables for example if you want to track a connection establish from a host  152.68.65.207 #> cat /proc/net/ip_conntrack |grep 152.68.65.207

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• Is there a way to forward emails associated with a domain without a mail server?

  - by MeltingDog

  A client owns example1.com but wants to also purchase example2.com and have it point to their original site at example1.com. No problem there. But they also want any emails going to example2.com to be forwarded to their counter parts at example1.com Eg: if someone emails [email protected] it will be forwarded to [email protected] They only way I can think of doing this at the moment is to set up host for example2.com and then set up mail forwarders in cpanel. But this seems a bit excessive and costly. Does anyone know another, cheaper way of doing this?

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• What advantages are conferred by using server-side page rendering?

  - by user1303881

  I am developing a web app and I have currently written the entire website in html/js/css and on the backend I have servlets that host some RESTFUL services. All the presentation logic is done through getting json objects and modifying the view through javascript. The application is essentially a search engine, but it will have user accounts with different roles. I've been researching some frameworks such as Play and Spring. I'm fairly new to web development, so I was wondering what advantages using server side page rendering would provide? Is it: Speed? Easier development and workflow? Access to existing libraries? More? All of the above?

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• Cannot access my own web page

  - by enflam3

  I am developing, learning and experimenting with php,html,javascript,flash and so on. Having web hosting and all of the cpanel, phpmyadmin and other utilities. One day, while updating information, connection between my computer and website just went down. I found out that it is only from this computer, where I cannot access anything. I don't know what is the reason I cannot access website, however this is what I have checked so far: Everything else opens normally, having problem only with my page. Cannot access FTP,cpanel or any kind of information related to the domain and hosting ipconfigs detects IP, but shows request timed out (so its not browser related) Turned off Firewall,AV, Rebooted computer Cleared caches,temp,cookies,histry with CCleaner Checked connectivity with both (wired,wireless) networks ISP has dynamic IP that has been changed about 3 times since issue Checked host file I am out of ideas and understanding what could cause this kind of issue, however couple minutes ago, found out that everything works with proxy server (when adding IP and port to the browsers) Can someone point out what should I check or try to get rid of this problem?

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• How do I disable the upgrade to new version warning? [duplicate]

  - by Anatoliy

  This question already has an answer here: Disable Ubuntu Update Manager's new version warning 2 answers After I allowed Ubuntu on my notebook to upgrade to 13.4, it lost Wi-Fi connection. Network menu does not show wireless access points, but according to syslog it establishes connection. Also, the wireless router provides IP address to the host. I don't want to spend time on debugging and solving the problem that most probably will reappear with new update, so I decided to reinstall 12.10 version. It recognized Broadcom Wi-Fi modem right after the boot, and everything went great, until today I powered it on and suddenly found that it is running 13.4 and all my problems are back! Is it possible to instruct it to stay with 12.10 until I decide to upgrade?

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• best cloud storage + rsnapshot

  - by humbledude

  I’ve started using rsnapshot as my backup system for home PC. I really like the idea of hard links and how they are handled. But can’t find best workflow. Currently I keep my snapshots on the same partition and let’s say, copy newest one to a pendrive at the end of the week. Cloud storage is what I’m looking for. As of rsnapshot, Dropbox doesn’t fit my needs. More over there is no way to make it respect hard links — all snapshots are treated as a full snapshot. Renting a server is pretty expensive so my question is, are there better alternatives for backup in the cloud? I would like to benefit from hard links and send only incremental backups, just like in my local host.

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• URL Rewrite Multiple domains under one site. Part II

  I believe I have it Ive been meaning to put together the ultimate outgoing rule for hosting multiple domains under one site.  I finally sat down this week and setup a few test cases, and created one rule to rule them all.  In Part I of this two part series, I covered the incoming rule necessary to host a site in a subfolder of a website, while making it appear as if its in the root of the site.  Part II wont work without applying Part I first, so if you havent read it, I encourage...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• URL Rewrite Multiple domains under one site. Part II

  I believe I have it Ive been meaning to put together the ultimate outgoing rule for hosting multiple domains under one site.  I finally sat down this week and setup a few test cases, and created one rule to rule them all.  In Part I of this two part series, I covered the incoming rule necessary to host a site in a subfolder of a website, while making it appear as if its in the root of the site.  Part II wont work without applying Part I first, so if you havent read it, I encourage...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• One subdomain is not working

  - by BFTrick

  Hello there, My main domain works just fine - www.example.com and a subdomain set up by another developer works as well - sub1.example.com. But when I try to set another subdomain up I go through the process everything seems to work. The software creates the default files where the subdomain files should go. But when I try to browse there it doesn't work. My host uses Plesk to do all of the hosting stuff. What do you think the problem is? I doubt it is some sort of cache issue because I had problems on my phone which I tried after problems on the pc. Maybe for some reason Plesk needs time to set this up? I have used Cpanel before and that works instantly.

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• Ubuntu 12.04 Ethernet works sporadically on lenovo x200 tablet

  - by user73100

  This is what I got from ifconfig eth0 Link encap:Ethernet HWaddr 00:1f:16:1a:0e:7e inet6 addr: fe80::21f:16ff:fe1a:e7e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:34 errors:0 dropped:0 overruns:0 frame:0 TX packets:387 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:16036 (16.0 KB) TX bytes:98315 (98.3 KB) Interrupt:20 Memory:f2700000-f2720000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:704 errors:0 dropped:0 overruns:0 frame:0 TX packets:704 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:55280 (55.2 KB) TX bytes:55280 (55.2 KB)

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• Need help migrating from Wubi

  - by neilh

  I know this question has been asked, but I am looking for specific help with my partition selection. I want to migrate my install from wubi to be a dual boot. When I installed it I choose a small, partition, around 30GB. I am following these instructions: https://help.ubuntu.com/community/MigrateWubi I see sda4 matches that size, but has mount point as '/host', am I okay to use this one? EDIT: Here is a screenshot of my partitions. http://i.imgur.com/ozPe0.png My windows partition is actually not there, that is down as sdb1, so safely out of the way? I can confirm sda4 is the location of the 'virtual partition' and is an otherwise, unused 26GB partition. It's also where I would like to migrate to a full install to.

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• Why does '~$ nc -z T43 1-1024' not produce any output although '~$ ping T43' is successful?

  - by user43816

  Why does '~$ nc -z T43 1-1024' not produce any output although '~$ ping T43' is successful? '~$ nc -z -v T43 1-1024' prints 'Connection to T43 22 port [tcp/ssh] succeeded!' and 'nc: connect to T43 port 1000 (tcp) failed: Connection refused.' 'man nc': "PORT SCANNING: It may be useful to know which ports are open and running services on a target machine. The -z flag can be used to tell nc to report open ports, rather than initiate a connection. For example: '$ nc -z host.example.com 20-30'.

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• What is the best and cheapest CMS for an E-Commerce site?

  - by kf0l

  My client needs a site customers can use to pay the membership fees and join. It should also track when old members need to pay again. There are some members that will not want to pay online and they want to be able to use the site to manage all payments. The CMS must be cheap to host online, potentially with something like GitHub/Heroku. I am experienced with PHP and RoR. I am using a CMS so once I am done with this project it is easy for them to update. After reading through different posts I think WordPress with an e-commerce Plugin may be the right solution. Spree and WebGUI also looks promising. Thanks for the help.

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• Moving Day

  - by Christopher House

  I've decided that it's time for me to move on from Geeks with Blogs.  It's been a great platform but unforuntately I've not used it nearly as much as I should.  It's been over a year and a half since my last post.  It's not that I haven't had worthwhile stuff to post, it's more due to a lack of motivation.  Knowing how I work, I think part of the problem with me using GWB is that it's free.  If I don't use it, I don't feel like I'm wasting anything.  With that in mind, I've decided to move to a paid host in hopes that drives me to post more frequently.  My new blog is located at the following address:http://thirteendaysaweek.comIn the coming days and weeks I'll be working on moving my content to the new site and will leave posts here that redirect to the new site.

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• Why hamachi time-outs after 5 minutes or so?

  - by Vik89

  I installed hamachi and hamachi-gui on my girlfriend's pc and on my girlfriend's netbook. After 5 minutes or so (even if I keep using it during that time) it loses the connection, I mean I have to 'go offline' and then 'go online' again for it to see my ip again. If I don't and I ping my IP, it says 'Host unreachable'. If I connect with my Mac from the office the problem doesn't exist, so I wouldn't say it is a problem of my hamachi (server) installation, I'm tempted to say it is a problem of my girlfriend's connection, since it happens from her home, and we haven't tried yet to connect from another home with her setup. What would you say? I followed these instructions http://ubuntuforums.org/showthread.php?t=135036

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• Looking to create a website ... need assistance on what technologies to use!

  - by rsala004

  First off, My group and I don't have any experience with databases or anything of that sort, only programming (not web-programming), so this post is just me wondering what things I should start researching and possibly some referral to a hosting company. The abstract idea is to have a list of things, each categorized, and each item with user-submitted reviews (made by users who are signed up with the website). Would absolutely everything be stored on a SQL database? (the long text reviews for example) Does anyone have any suggestions on some 'web frameworks' we could use to jumpstart us? What should our absolute first step be? (I was thinking about first designing the basic database? so we have something to work around...?) Should we worry about which host we choose right now, any recommendations? (would it be a trivial task to switch hosts in the future?) Thanks again, any help is appreciated!

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• SQL Saturday #248 Tampa

  SQLSaturday BI & Big Data Edition is a free training event for everyone interested in learning about Business Intelligence & Big Data with a focus in the Microsoft SQL Server platform. This event will be held November 9th, 2013. In addition to our Saturday free event, we will also host four paid full day pre-conferences. Want faster, smaller backups you can rely on? Use SQL Backup Pro for up to 95% compression, faster file transfer and integrated DBCC CHECKDB. Download a free trial now.

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• Wait random number of minutes

  - by TiborKaraszi

  Why on earth would you want to do that? you ask. Say you have a job that is scheduled to start at the same time over a number of servers. This might be because you have an SQL Server Master/Target server environment (MSX/TSX) or you quite simply script a job and execute that script on several servers. You probably want to spread the load on your SAN and virtual machine host a bit. This is the exact reason I use this procedure. I frequently use MSX servers and I usually add a job step (executing this...(read more)

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• Missing Firefox app icon

  - by frozenkoi

  I'm using Ubuntu 11.04 (upgraded from LTS 10.04) and Firefox (version 11) doesn't show it's icon in the Window List panel, in the Firefox window top left corner (system menu) nor when using ALT+TAB to switch applications. I'm using unity 2D since I'm running ubuntu as a guest in a VMWare virtual machine (Host is windows 7) Instead of the Firefox icon I get what appears to be a generic icon that looks like an app window in the window list and a black rectangle with a curl in the bottom right corner in the ALT+TAB window. How do I fix this so that the proper Firefox icon gets displayed? EDIT: Depending on the icon set chosen in the Appearence settings window sometimes I get the icon, sometimes I don't. When using Ubuntu classic none of the icon sets provide the icon for Firefox.

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• How do I forward/redirect a website from a folder in a subdomain to another server?

  - by dozza

  I have a client with a site at: subdomain.theirdomain.com/folder It's a 50Gb gallery site that i've now cloned and have locally in MAMP. Once i've made some changes to it I need to host it at alternative physical server/hosting (I intend using a dedicated server I have access to with a technical domain name currently). However, the client would ideally like to keep the existing URL as it has been used extensively in marketing. I've done HTTP redirects and forwards and 301 redirects in the past, but I'm not sure how or even if I can do what the client wants. How can I achieve this, possibly using .htaccess and DNS entries? Caveats: I can't have the site at a 3rd party domain and the client isn't able/allowed to register any additional domains:

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