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  • Apache and linux file permissions

    - by morpheous
    I recently moved a Symfony 1.3.2 website (a PHP web framework), from a windows machine to Linux (Ubuntu 9.10). Ever since then, I have had all kinds of problems involving file permission (even though the app run without any of these problems on windows). I run symfony fix-perms which applied a 777 mask to the web directory (presumably, including its sub folders) - (as an aside) I think that is a potential security hole ... I have been meaning to come in here to ask how to correctly set permissions. Currently, when attempting to save a file from my website, I am getting the following error: PHP Warning: imagejpeg() [0function.imagejpeg0]: Unable to open '/home/morpheous/work/webdev/frameworks/symfony/sites/project1/web/uploads/../images/thumbnail/959cd604cf6115014a3703bef5a50486a5520642.jpg' for writing: Permission denied in /home/morpheous/work/webdev/frameworks/symfony/sites/project1/apps/frontend/lib Here are the permissions on the folders: web drwxr-xr-x 16 morpheous morpheous 4096 2010-02-24 21:01 web web/uploads/../images drwxr-xr-x 13 morpheous morpheous 12288 2010-04-09 15:25 images web/uploads/../images/thumbnail drwxr-xr-x 3 morpheous morpheous 4096 2010-02-24 20:44 thumbnail Can someone kindly tell me how to set the permissions so that my website (presumably running as the Apache daemon) can write the files to the directory required above?

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  • Networking multiple computers to one brain in Java

    - by Morpheous
    Hello, I was wondering which libraries or API's would be useful in this. what im aiming for is to be able to type a command into a prompt and then specify which computer(out of all of them that are networked together) to execute that command on. the second part is i want to be able to see that command execute and the result on the computer that was specified. for example if i enter "firefox www.google.com, desktop2" i want to be able to see the window open on the monitor of that computer. Do you understand what im trying to do? any help is appreciated. Thanks, Morpheous

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  • How can I allow robots access to my sitemap, but prevent casual users from accessing it?

    - by morpheous
    I am storing my sitemaps in my web folder. I want web crawlers (Googlebot etc) to be able to access the file, but I dont necessarily want all and sundry to have access to it. For example, this site (superuser.com), has a site index - as specified by its robots.txt file (http://superuser.com/robots.txt). However, when you type http://superuser.com/sitemap.xml, you are directed to a 404 page. How can I implement the same thing on my website? I am running a LAMP website, also I am using a sitemap index file (so I have multiple site maps for the site). I would like to use the same mechanism to make them unavailable via a browser, as described above.

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  • apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName

    - by user35402
    I keep getting this warning when I (re)start Apache. Restarting web server apache2 apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName ... waiting apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName [ OK ] This is the content of my etc/hosts file: #127.0.0.1 hpdtp-ubuntu910 #testproject.localhost localhost.localdomain localhost #127.0.1.1 hpdtp-ubuntu910 127.0.0.1 localhost 127.0.0.1 testproject.localhost 127.0.1.1 hpdtp-ubuntu910 # The following lines are desirable for IPv6 capable hosts ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters ff02::3 ip6-allhosts This is the content of my /etc/apache2/sites-enabled/000-default file: <VirtualHost *:80> ServerName testproject.localhost DocumentRoot "/home/morpheous/work/websites/testproject/web" DirectoryIndex index.php <Directory "/home/morpheous/work/websites/testproject/web"> AllowOverride All Allow from All </Directory> Alias /sf /lib/vendor/symfony/symfony-1.3.2/data/web/sf <Directory "/lib/vendor/symfony/symfony-1.3.2/data/web/sf"> AllowOverride All Allow from All </Directory> </VirtualHost> When I go to http://testproject.localhost, I get a blank page can anyone spot what I am doing wrong?

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  • LAMP stack security question - uploading files to server

    - by morpheous
    I am running Ubuntu 9.10 desktop on my home machine. I need to upload files from my local machine, to my web server, on a periodic basis. My server is running Ubuntu Server LTS. I want my server to be secure, and only run the LAMP stack and possibly, an email server. I do not (ideally) want to have FTP or anything that can allow (more) knowledgeable hackers to be able to hack into my server. Can anyone recommend how I may send files from my local machine to the server? This may seem an easy/trivial question, but I am relatively new to Linux - and I got my previous Windows server machine serious hacked in the past, hence the move to Linux, and thats why I am so security conscious.

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  • Linux file structure

    - by morpheous
    ok. I asked this question earlier(as part of another question) and got no response - so here it is again: what i the recommened directory for me to store the following: 1). my apps 2). development tools (C++ tools) 3). AMP applications for LAMP stack (Apache, MySQL, PHP) 4). files for websites that I develop on my machine - e.g. website1, website2 etc ...

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  • Mounting a drive in Ubuntu 9.10 (Karmic Koala)

    - by morpheous
    I have just installed Ubuntu on a machine that previously had XP installed on it. The machine has 2 HDD (hard disk drives). I opted to install Ubuntu completely over XP. I am new to Linux, and I am still learning how to navigate teh file structure. However, AFAICT), there is only one drive. I want to be able to store programs etc on the first drive, and store data (program output etc) on the second drive. It appears Ubuntu is not aware that I have 2 drives (on XP, these were drives C and D). How can I mount the second drive (ideally, I want to do this automatically on login, so that the drive is available to me whenever I login - withou manual intervention from me) In XP, I could refer to files on a specific drive by prefixing with the drive letter (e.g. c:\foobar.cpp and d:\foobar.dat). I suspect the notation on ubuntu is different. How may I specify specific files on different drives? Last but notbthe least (a bit unrelated to previous questions). This relates to direcory structure again. I am a developer (C++ for desktops and PHP for websites), I want to install the following apps/ libraries. i). Apache 2.2 ii). PHP 5.2.11 iii). MySQL (5.1) iv). SVN v). Netbeans vi). C++ development tools (gcc, gdb, emacs etc) vii). QT toolkit viii). Some miscellaeous scientific software (e.g. www.r-project.org, www.gnu.org/software/octave/) I would be grateful if a someone can recommend a directory layout for these applications. Regarding development, I would also be grateful if someone could point out where to store my project and source files i.e: (i) *.cpp, *.hpp, *.mak files for cpp projects (ii) individual websites On my XP machine the layout for C++ dev was like this: c:\dev\devtools (common libs and headers etc) c:\dev\workarea (root folder for projects) c:\dev\workarea\c++ (c++ projects) c:\dev\workarea\websites (web projects) I would like to create a similar folder structure on the linux machine, but its not clear whether to place these folders under /, /usr, /home or swomewhere else (there seems to be abffling number of choices, so I want to get it "right" first time - i.e having a directory structure that most developer use, so it is easier when communicating with other ubuntu/linux developers)

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  • Is there the equivalent of cloud computing for modems?

    - by morpheous
    I asked this question on SF, and someone recommended that I ask it here - (I don't think I have enough points to move a question from SF to SO - and in any case, I don't know how to do it - so here is the question again): I am interested in the concept of PAAS (platform as a service). However, all talk about SAAS/PAAS seems to focus on only the computer itself - not its peripherals. Is it possible to 'outsource' modems as a resource - so that an app running remotely can pump data to a modem in the cloud? As a bit of background to the question, a group of us are thinking of starting a company that offers similar services to companies like twilio etc - but I want to 'outsource' both the computing hardware (thats PAAS - the easy bit) and the modems (thats what I cant seem to find any info on). Does anyone know if modems can be bundled as part of a PAAS service? - alternatively, is there a way that an application running on one computer can communicate (i.e. pump data) to a remote modem residing on another machine?. I assume I can come up with some protocol over UDP or TCP - but there is no point reinventing the wheel - if such a protocol like that already exists (or if it some open source software allows one to do this). Any suggestions on how to solve this problem?

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  • Ubuntu karmic, chroot, Ubuntu server 8.04 LTS and Plesk

    - by morpheous
    I am pretty new to the Linux environment, and although I have been using Ubuntu Karmic desktop for development work, I have always prefered the GUI tools and very rarely use the terminal. I am about to launch a site (a VPS) which will be running Ubuntu server 8.04 LTS and Plesk. I want to install both the server (8.04 LTS) and Plesk in a 'chroot' on my Karmic desktop. I also want to test install some packages I have written for the server, and generally familiarize myself with the environment before I signup to the hosting service. I will be running a streamline server (no GUI), with only the following software: PHP Python mySQL PostgreSQL Apache Plesk Third party packages I developed In terms of mail, I think the hosting provider provides a mail service, so I dont know if I will need to run my own mail server. I will like some advice on the following: How can I install Ubuntu 8.0.4 server LTS in a chroot? How can I install Plesk in Ubuntu 8.0.4 server LTS (from the command line) Can anyone recommend how I back up the remote server when I go live (i.e. what tools to use)?. I will need to back up both databases, as well as some config data and installation packages

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  • How to backup a remote VPS machine?

    - by morpheous
    I am considering opting for a VPS solution, with the server running Ubuntu server. I am pretty new to this, and I need to come up with a backup policy for my server data. Initial data is likely to be about 80Mb, and I expect the data to grow at approximately 5Mb to 10 Mb a day. Can anyone recommend: A backup/restore policy (best practises for a small startup) Which tools to use for backup? Another thing that is not clear to me is - where are the files backed up to normally (in the case of remote servers). If the files are backed up to the same machine (or even to another machine but with the same host), there is potentially, a single point of failure). How do people normally backup their server data, and is the probability of machine meltdown or the host company server farm "catching fire" so remote as not to be worth worrying about - especially for a small (read one man) startup like me?

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  • How to view pdf files on the Blackberry ?

    - by morpheous
    I recently purchased a blackberry bold - and was rather annoyed to find that I can't read my pdf files on it (unless I purchase something else [can't remember what] from RIM). Are there any free Blackberry apps out there that allow you to read pdf files (without having to connect to the internet)? Failing that, maybe someone can suggest (free) software I can use to change the pdf format to something that my Blackberry can view/read?

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  • question about chroot

    - by morpheous
    I used chroot to install Debian Lenny on my Ubuntu desktop. I have now decided I will no longer be using Debian and so I want to remove Debian and install Ubuntu server in a chroot instead. My question is, I can simply remove the /chroot/debian/lenny folder and create a new chroot for Ubuntu server? or is there something else I need to do (I have read a bit about chroot but it does not answer this question)

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  • Is it advisable to run Apache in a chroot jail?

    - by morpheous
    I have been advised by a sysadmin guy I know, to run Apache in a chroot jail, for increased security. I have the following questions: Is this advisable (i.e. are there any 'gotcha's that I need to be aware of) ? Does running Apache in a chroot jail affect its ability issues like performance and scalability? He also advised that I run my databases (mySQL and PostgreSQL), in separate chroot jails. Is this something that is often done in production systems

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  • About to go live: virtual dedicated server or cloud?

    - by morpheous
    I am about to launch my startup company, and we will be going live in a few weeks time. We have really tight budgetary constraints, since we are bootstrapping - and would prefer not to raise external capital. I cant use shared hosting because I need more control of the server machine (for technical reasons - e.g. using proprietary extensions to PHP, Apache and in the database layer as well) - but want to control costs and dont want to go fully private server route, until we have determined the market size etc. So the only real alternatives AFAIK is between virtual server and the cloud. At the moment, cloud services seem a bit "vague" to me. My understanding is that they allow an entity to outsource its IT infrastructure, which in my mind (at least), is indistinguishable from what a hosting provider provides (at least from a functional point of view) - I would like to seek some clarification on exactly what the difference between the two is. Back to my original question, my requirements are: IT infrastructure that can scale with growth Ability to have control of the machine (for e.g. to install our internally developed libraries etc) Backup software that is flexible and comprehensive enough (yet simple to use), that allows a (secured) backup strategy to be implemented. On this issue, I have always wondered where the actual backed up data was stored (since the physical machines are remote, and one cant get access to any actual tapes etc backed onto). I would also like some advice and recommendations in this area. Regarding data size, I am expecting the dataset to be increasing by a few megabytes of data (originally, say 10Mb, in about a years time, possibly 50Mb) every day. As an aside, I have decided to deploy on a Debian server (most of my additional libraries etc were compiled and built on a Debian machine). Mindful of all of the above, I would like some advice (and reason) as to which route to take. I would also like some advice on which backup software to use, from people who have walked a similar path.

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  • How realistic/easy is it to host our own web servers?

    - by morpheous
    It is increasingly looking like we will need to host our own servers, because we need modems physically attached to the server machines. I (think) we will need a T1 line to our office for starters. Dont know what else is involved other than the obvious redundancy and failover requirements. My questions are: Do we really have to do it our selves or can we find a service that allows the modems to be remote as well? If we have to host the servers ourselves, what are the steps (technical and operational) required?

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  • JQuery error: XML filter is applied to non-XML value (function (E, F) {return new (o.fn.init)(E, F);

    - by morpheous
    I am getting this slightly cryptic error message: XML filter is applied to non-XML value (function (E, F) {return new (o.fn.init)(E, F);}) when I run this code snippet function justDoIt(arg){ msg = arg.msg; if(arg.ok) jQuery.(".action-button").each(function(idx,el){jQuery(this).removeClass('enabled');} ); } arg is a JSON format response form the server. Anyone knows how to fix this?

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  • PHP Warning: Cookie values can not contain any of the following

    - by morpheous
    I am getting this warning whilst using Symfony 1.3.2 on Ubuntu 9.10: HP Warning: Cookie values can not contain any of the following ',; \t\r\n\013\014' in /lib/vendor/symfony/symfony-1.3.2/lib/response/sfWebResponse.class.php on line 368 I am not sure why this warning is being issued, since I am not directly setting any cookies in my action/template. Anyone knows what is causing this?

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