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• I deleted all files and folders (including hidden) from /home/username/ now in big trouble

  - by jeffery_the_wind

  I am logged into a remote ubuntu server, and I accidentally erased the entire /home/username/ directory for the current user. The only thing left is a hidden directory called .gvfs. I don't need anything of the Documents/Music/etc. Now it is not letting me cd into the /var/www/ directory, which has permissions 666 and it is owned by the current user. I am afraid to disconnect from my ssh session because I don't know if I will be able to get back on. Have I permanently created a problem? Is there a way I can replace the most important files to the /home/username/ directory? Thanks! ** EDIT ** Thanks everyone for the help. I figured the problem with cd into the /var/www/ was actually my permissions in the /var/www/ directory. It was set to 666, changed it to 755 and everything was good again. It doesn't look like anything systematic was ruined by deleting the contents of the user folder.

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• Looking for concise set of instructions for upgrading Vmware 5.1 to 5.5

  - by Michael Martinez

  I'm trying to find a set of instructions for upgrading Vmware (ESXi and Vsphere) from 5.1 to 5.5, but all I'm finding online is a bunch of separate, incomplete knowledgebase articles which is making it difficult to get an overview of what's involved. What I'd like is a single, concise document that lists the steps involved. It could be a free online article, someone's blog, a small booklet, someone here who takes the trouble to write it out. Does such a thing exist? If so, can you provide the reference or even provide the text here. I'm running a very small, simple environment consisting of two ESXi hosts and Vsphere Standard edition. Thanks.

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• What is the best file system to use for a second hard drive when dual booting between WinXP and Win7

  - by Corey

  I am dual booting for legacy reasons, and I have a 2nd internal drive that I would like to use from both XP and 7. Should I go with the standard NTFS? (will the secuirty features be an issue, with different SIDs from the different users) Should I go with FAT32? Should I try out the new exFAT? Also, I curently have two of my 3 drives as "dynamic disks" and 1 spaned volume created on them. (i did this from XP) Win7 can see them/it fine. Is this an ok thing to do?

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• Nightly backups (and maybe other tasks) causing server alerts

  - by J. Pablo Fernández

  I have two independent alert notification systems for my servers. The server is a virtual machine on Linode and one of the alerts comes from Linode. The other monitoring system we use is New Relic. They are both watching out for IO utilization. Every night I get alerts from both of them as the server is using too much IO. I run quite a few tasks in the middle of the night but the one I confirmed that can cause IO-warnings is running the backups. The backup is done by s3cmd sync. I tried ionice but it still generates the warnings. Getting warnings every night reduces the efficacy of warnings when they happen for real. For Linode I could raise the level at which a warning is issued, but it might mean making the whole thing useless as the level is too high. What would be the proper solution for this?

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• A new day has dawned in my SharePoint world.

  - by SPTales

  Until I started working with SharePoint, I never thought I would be blogging.  I am usually a pretty private individual, but this thing called the SharePoint community pulls you in and makes you feel like you should be a part of it, contributing to it and giving something back.  So here I am blogging for the first time – and so begins my tale. I started my work life as a Systems admin, but was given a chance to start working with SharePoint 2007 back in - ironically enough - January of 2007.  It has been downhill from there or uphill depending on your perspective!  I jumped in with both feet and haven’t looked back.  Lucky for me Microsoft gave us a new version to work with.  A new job a couple years ago gave me the chance to work with that new version.  Now I spend my days weaving a tale of SharePoint for a Sales based organization. So why this blog?  To give something back. I spend most days toggling between administration, InfoPath, Branding and design, HTML, JQuery, and XSLT depending on the need.  The blog will detail these projects and solutions as best I can.  Hopefully they will be of use to someone who may be trying to accomplish similar things, just as many of the blogs that I have referenced over the last 5 years have been a huge help and resource for me.

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• Is this too much to ask for a game programming and developing enthusiast? Am I doing this wrong?

  - by I_Question_Things_Deeply

  I have been a computer-fanatic for almost a decade now. I've always loved and wondered how computers work, even from the purest, lowest hardware level to the very smallest pixel on the screen, and all the software around that. That seems to be my problem though ... as I try to write code (I'm pretty fluent at C++) I always sit there enormous amounts of time in front of a text-editor wondering how every line, statement, datum, function, etc. will correspond to every Assembly and machine instruction performed to do absolutely everything necessary for the kernel to allocate memory to run my compiled program, and all of the other hardware being used as well. For example ... I would write cout << "Before memory changed" << endl; and run the debugger to get the Assembly for this, and then try and reverse disassemble the Assembly to machine code based on my ISA, and then research every .dll, library file, linked library, linking process, linker source code of the program, the make file, the kernel I'm using's steps of processing this compilation, the hardware's part aside from the processor (e.g. video card, sound card, chipset, cache latency, byte-sized registers, calling convention use, DDR3 RAM and disk drive, filesystem functioning and so many other things). Am I going about programming wrong? I mean I feel I should know everything that goes on underneath English syntax on a computer program. But the problem is that the more I research every little thing the less I actually accomplish at all. I can never finish anything because of this mentality, yet I feel compelled to know everything... what should I do?

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• mod_security: How to allow ssh/http access for admin?

  - by mattesque

  I am going to be installing mod_security on my AWS EC2 Linux instance tonight and need a little help/reassurance. The only thing I am truly worried about right now is making sure my (admin) access to the instance and webserver is maintained w/o compromising security. I use ssh (port 22) and http (80) to access this and I've read horror stories from other EC2 users claiming they were locked out of their sites once they put up a firewall. So my question boils down to: What settings should I put in the mod_security conf file to make sure I can get in on those ports? IP at home is not static. (Hence the issue) Thanks so, so, so much.

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• How can I keep the Windows 8 virtual keyboard from popping up?

  - by orbfish

  I am the unwilling recipient of Windows 8. Lenovo couldn't fix the new Windows 7 Ultrabook I bought, so they sent me a Yoga laptop, with touch-screen and Windows 8. Once I bought a start menu replacement, I don't mind Windows 8 too much - it's ugly, but most things work as well as Windows 7. But the thing that drives me crazy, endlessly, is the virtual keyboard popping up when I'm trying to do something else (well, just about anytime, since I almost never use it to type). It's like a giant Clippy that covers half the screen. I haven't figured out what causes it to pop up. It seems pretty random, and sometimes it goes away before I can even reach for the escape key. Sometimes it comes up when I'm typing, sometimes when my hands are nowhere near the keyboard. Sometimes several times a minute, sometimes not for hours. Any suggestions?

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• What are the signs that a ten days debugging session will not resolve an issue? [on hold]

  - by smonff

  Ten days ago, we fixed a bug on a large application and the hot fix has created a disappearing of some data from the user point of view (side effect). Data are not deleted, but have been set to hidden status. It could be possible to get the data back, but the thing seems to be hard: we've already spent 10 days to understand and reproduce the problem (mostly with SQL queries but sometimes it is necessary to update the database to test the application logic). My questions are : is 10 days a normal amount of time for these kind of problems? should we keep on and retrieve the data or should we give up this work (so the customer-relationship person will tell these users sorry for the loss, but your data have disappeared or maybe tell nothing at all)? what can be the signs that shows that we should stop to search for how to solve this issue? Edit about the context : we are a small team(3), users are not the customers, and lost data are not about the users money, bank or vital data. This is a question from a confused developer about development methodologies and business concerns, not about how we should deal with the customers.

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• Extended service set help [closed]

  - by Cygnus X

  Sorry, this is going to be long and rambly. So, at home my network is set up as such: I have a "master router" that handles DHCP, from there I have a basic 5 port switch, and coming off that, I have a second router that I put in access point mode so that I could have better wireless coverage in my house. I cant seem to access it through a web browser since the master router kicked in and assigned it an ip address. But, i told you all that story, so that i could tell you this story. At the company I work for, they are trying to set up wireless cameras, according to the manual for these, in order to connect these cameras to our network, we need to get into the wireless router and associate the router with the cameras, but the problem is, the network is setup like my home network. Theres a "master router" which is a windows 2003 server, and then a wireless router in AP mode dishing out wireless access. I cant get into the router (by the way I'm not the system admin for the company, nor do i know jack squat about windows server , nor can I easily get in contact with the system admin. (quite the cluster f*k, eh?)) I've tried using wireshark to find the routers ip, dug through arp tables, tried plugging straight into the router, but I cant seem to get into the damn thing. Any ideas/suggestions would be greatly appreciated.

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• Manual vmware image creation

  - by Gzorg

  A laptop hard disk is being defective, but I managed to be lucky enough to get access to it, using an Ubuntu live cd. Now, I think it would be nice to dump the whole thing, using, for instance, a combination of gzip and split. But that would make the resulting files unusable. I could make a VMware image of it instead. I'm currently looking for the answer, which involves finding how vmware manages fixed size virtual partitions, but maybe you already did this before. Thanks.

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• How do I tell my parents that landing a job is what actually counts?

  - by shovonr

  On one side, I just want to get a degree with a 3.0 GPA. On the other side, my parents want more than just a 3. Now here's the thing. I program with a passion. I spend day and night programming. And I ace all my programming courses. However, I do terrible on all my elective courses -- such as writing, history, and all that stuff -- which only leaves me with a 3.1 to 3.2 GPA. And my parents want more. They think that university is like high school, where you need super-stellar grades to get to the next level. But they don't realize that good enough grades will land me a job. And they don't realize that a programmer needs to practice to become good at programming, and that having good skills is what will land a job in a nice software development company. Thankfully, though, they don't threaten to beat me with a baseball bat or anything like that. They just occasionally give me the little "tsk-tsk". But even that little "tsk-tsk" makes me feel guilty for opening up an IDE. And on top of that, I procrastinate because of that feeling of guilt. So now, I want to come clean with them. I want to know what's a good way to do that. [Edit] OK, so now, I realized, I should aim for higher grades, as some have suggested below.

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• Disable a driver with a command

  - by user337085

  I have a macbook running Windows on it (with bootcamp). I have external mouse to use, but touchpad remains enabled at the same time. So when I use keyboard, I always click on it and move mouse cursor. The first thing I did is I just disabled driver in devmgmt.msc. But sometimes it could be helpful to disable and enable the driver with AutoHotKey (mapping ^F12 key or whatever). So I just want to know, is there any way of enabling/disabling the driver with a command or registry? In order to be able to do that with AutoHotKey. Thanks.

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• PHP session files have permissions of 000 - They're ununsable

  - by vanced

  I kept having issues with a Document Management System I'm trying to install as, at the first step of the installation process, it would error with: Warning: Unknown: open(/tmp/sess_d39cac7f80834b2ee069d0c867ac169c, O_RDWR) failed: Permission denied (13) in Unknown on line 0 Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp) in Unknown on line 0 I looked in /tmp and saw the sess_* files have the following permissions ---------- 1 vanced vanced 1240 Jan 20 08:48 sess_d39cac7f80834b2ee069d0c867ac169c All the session files look like this. So obviously, they're unusable by PHP and it's causing me lots of problems. How can I get PHP to set the correct permissions? I've tried changing the directory which php.ini uses to /tmp/phpsessions and the same thing occurs. The directories are a+rwx.

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• Check "Id3 Tag" integrity from mp3 (almost a "debug"). Is it possible?

  - by Somebody still uses you MS-DOS

  I'm using Mp3Tag do edit Id3 tags in my mp3 files. In the editor everything looks ok, but in my iTunes, some of them just ge messed up. The artist isn't read, Album Artist doesn't show up, this kind of thing. It's just random, some are messed up, some aren't. How do I "debug" this problem? How can I check what is written in my mp3 metadata, if possible, running all my mp3 in a batch (since I have 100gb)? How do I know if there are "garbage" in the metadata section along with information I correctly edited?

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• Running suspicious X programs in GNU/Linux

  - by Vi

  What the most harmful thing can malware program started as separate limited user account do if it has access to the X server? Network and filesystem things are already considered by chroot and netfilter. It obviously can lock the screen and I will need to switch to other vt and kill it manually. Can it for example disrupt other GUI programs on the same X server (access to root terminal in nearby window)? I know that it is safer to run it in separate X server, for example, in Xtightvnc or even some virtual machine, but how dangerous is to just run it like other programs?

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• trying to copy security groups to a user using dsmod group utility in AD

  - by newbie

  i am trying to create a batch file that asks to enter source samid and destination samid. then using dsquery and dsget find out what security groups source samid is assigned to and assign destination samid to those security groups using dsmod. everything works except the dsmod group command. it doesnt do anything and batch file stops. if i literally put "CN=marketing,OU=test group,DC=abc,DC=com" instead of %%g and "CN=test1,OU=test group,DC=abc,DC=com" instead of %dusercn%, it works fine. can anyone help with this? i have pasted my scrip here. this last small thing is killing me. echo off echo %date% at %time% set /p susername=enter source user name: set /P dusername=enter destination user name: echo %susername% echo %dusername% set dusercn= %dusercn%=dsquery user -samid %dusername% echo %dusercn% for /f "tokens=*" %%g in ('dsquery user -samid %susername% ^|dsget user -memberof') do (dsmod group %%g -addmbr %dusercn%) echo completed pause

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• Should I Open Source? [closed]

  - by Howdy_McGee

  My company recently created a full javascript, html & css Virtual Tour. Since it is html based there is no real way of securing our information/code so selling it could be flimsy. We are an extremely small company, barely on the map so I was thinking that by making this an open source project it could give us a chance to jump start our SEO by page views alone, especially if we provide documentation. Not to mention hopefully bring a community following on our blog. On the other hand though could this possibly hurt our sales as a web development company? If we are handing out this cool "plugin" we made what keeps people from making it commercial somehow? So I'm trying to weigh the options on whether I should make this Open Source or not and the pros / cons of each especially for a small business. What do you guys think about making things Open Source? How do I know if this product is the right thing to make Open Source? What are some pros and cons to going Open Source?

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• redirect wildcard subdomains to https (nginx)

  - by whatWhat

  I've got a wildcard ssl certification and I'm trying to redirect all non-ssl traffic to ssl. Currently I'm using the following for redirection the non-subdomainded url which is working fine. server { listen 80; server_name mydomain.com; #Rewrite all nonssl requests to ssl. rewrite ^ https://$server_name$request_uri? permanent; } when I do the same thing for *.mydomain.com it logically redirects to https://%2A.mydomain.com/ How do you redirect all subdomains to their https equivalent?

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• Delete Ubuntu and Grub from PC (and BIOS unaccessible)

  - by Temitope

  I've really done a mess while upgrading 12.04 to 12.10, or my PC did, or ubuntu did, I can't really tell. The situation now is I have a dual booting machine, Windows 7 and ubuntu 12.10 -When turning on the PC, I can't access boot options, I've tried every thing, esc, f1 f8, f10 (I have a Hp pavilion) but all I can see is a short-lasting screen with three lines reading something like "error:files not found" or "link not found". So the PC turns to the Grub loader screen. This is already a BIG problem. It means I can't change boot order, and I'm diperate, since it doensn't seem that repairing my operating systems will bring my BIOS back. -If I chose Ubuntu in grup, it loades but then frezes on the desktop, I may be having problem with unity3d, or compiz, which was reported to be crashing the first times I started ubuntu. Now, after turning off and on the pc several times, no crash is reported again. Ubuntu just load my background image and nothing else. Not the side menu, not the header, nothing. Althogh the system seems "functioning", when I press the power button on the PC, for example, the normal shutdown dialog window appears. -If I chose Windows, Grubs tells me that something is not found, and to press any key to continue; I do it and then Windows loads perfectly. What I now want to do is 1- use EasyBSD to change boot order and boot Windows partition first 2- delete the ubuntu partitions from within windows disk manager What I except happening is that My PC turns to, or near to factory booting settings: I press the power button and Windows loads without asking me nothing I have acess to all my hardisk from withing windows Is that what will really happen? Are there danger I'm not seeing? What I don't except happening is The BIOS access key return functioning How could I eventually solve this? I would like to reinstall Ubuntu, 32 bit version this time.

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• Are you satisfied with your programming? [closed]

  - by Richart Bremer

  If you are a programmer, are you satisfied with it? I really love to code. I code all kinds of things. I used to play computer games but they are not that interesting compared to developing a new search algorithm or similar. But sometimes I look into the future and see myself being 80 years old, sitting in front of a computer and everything I will have written will be rewritten because the programming languages do not exist anymore. I look back on my life and think "that's it?". Everything I wrote in the past is virtual and ultimately gone. I tried other things but coding is the only thing that does it for me. And at the same time I think I am wasting my life. What about you? Disclaimer: I presume this is the best forum for this question. If you don't agree suggest better place to migrate the question. If you can't, don't close it. Thank you.

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• Desktop runs very slick, animations are all fast and flawless. Moving windows around, however, is very laggy. Why?

  - by Muu

  This isn't a question about Ubuntu being laggy in general - not at all, in fact, it's very slick and fast for me. Clicking the "Workspace Switcher" in the dock performs the animation immediately and very smoothly. Switching between workspaces with the arrow keys - again, flawlessly. My computer has a resolution of 2560x1440 on a 27" display (no, not an Apple product - though my monitor has the same panel that Apple use in their cinema displays). It's powered by an Nvidia GeForce GTX 470 - easily enough to handle it - and an Intel i3. Hardware is not the issue. I am running Ubuntu 11.10 (upgraded from 11.04). I had the same issue in 11.04. I'm running the "NVIDIA accelerated graphics driver (post-release updates) (version current-updates)" from the additional drivers dialogue. Two drivers have been suggested to me via that dialogue and I've tried both - same effect with each. The driver is "activated and currently in use". Any other information required, let me know and I'll post it. I'm a programmer who works with Linux daily (both as a job and as an interest) so technical instructions are fine. I've noticed that Compiz uses a lot of CPU when moving windows around and it's memory usage is relatively high (though possibly expected for Compiz): 1671 user 20 0 478m 286m 33m S 1 7.3 12:44.05 compiz And one more thing - occasionally moving windows around is fast. But it only happens when all applications are closed, and even then it sometimes doesn't. Something must be interfering, but what? I'll try and find out but in the meantime, any suggestions are much appreciated :-)

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• Writing good looking documentation in pdf format on a mac [closed]

  - by Matthew

  I'd like to write some documentation that will be written in sections (1.1, 1.2, 2.1, 2.2, 2.3, etc). I'd like to use something that will generate the table of contents in the end or at least have it "linked" up so that when I make changes everything is still accurate (if I merge section 2.1 and 2.2 or something). The end result needs to be in pdf. I don't want to pay $350 for Acrobat Pro either... I've got microsoft word, but every little thing is a pain (for example, having one background of a page be a different color than another). Any ideas on how to create quality documentation in a pdf format?

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• CentOS drive mapping? [on hold]

  - by DroidOS

  This is the first time I am posting on this particular StackExchange forum and I hope that I am using the right one for the present question. Briefly, this is what I need to do I am running a web service where users can, amongst other things, upload and store files on the server. What I want to do is to hive off user file storage to a different location so my server (CentOS 64 bit) can concentrate on what it does best - server side scripting and database management. As things stand all user files go into subdirectories in a folder called stash that lies above DOC_ROOT. What I would like to do is Transparently detect all attempts to read/write to stash/sub_folder and get/set file data on a remote server - ideally the latter would be one which replicates files like a CDN so they can be delivered from the closest/fastest location based on where the user's location. Even nicer would be if for all read accesses I could provide a URL that allows the user's browser to fetch the relevant file directly without having to funnel them via my server. I am a relative newbie when it comes to this sort of thing so I hope that I have phrased this question adequately well. From the little searching I done I gathered that WebDAV can be used to map drives to a different location on the web so perhaps that is a starting point. But if that will work I need to Establish how to get WebDAV up and running on my CentOS 64 bit server. Ideally, identify a service that allows this kind of file storage and provides an API I can use in my own scripting. I'd much appreciate any help with this.

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• Why does Exim puts emails on hold if there are frozen messages in the queue?

  - by user51932

  Hi, I've a CentOS with CPanel server working as a SMTP server, which currently uses 20 different hostnames and IP addresses to deliver email for an email newsletter service. However, it's extremely slow in sending emails. It's sending like 10 emails per minute, which I check by running the "exim -bpc" command. What could be affecting this? One thing I'm supposing, is that there are frozen messages in the queue, which are slowing down the sending until they're sent out, and are putting new messages on hold. What are the most common reasons a message can get frozen? Also, would it be more efficient to use 20 different small VPSs to send out email rather than use one large VPS with the 20 different hostnames and IPs in it?

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