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• Network Role based routing

  - by Steve Butler

  Apologies my networking skills are a tad rusty. I'm looking for a way to setup a system that gives me the ability to setup Role-based access to specific network resources. For example, i have three private subnets for specific groups, users will need access to one one or more subnets. I'd like to have all client machines on the same subnet/vlan, and then use 802.1x to authorize into a router(NAC device/whatever), the router would then see what user had authenticated(huge plus if it could determine AD group), and then allow routing to one or more of the three private subnets based upon their group membership. I've looked at packetFence, and it appears to work by assigning a client to a VLAN, but i'd still need a way to route some users into different back-end networks.

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• Creating foreign words' learning site with memory technique (Web 2.0)? Will it work?

  - by Michal P.

  I would like to earn a little money for realizing a good, simple project. My idea is to build a website for learning of chosen by me language (for users knowing English) using mnemonics. Users would be encourage to enter English words with translation to another language and describing the way, how to remember a foreign language word (an association link). Example: if I choose learning Spanish for people who knows English well, it would look like that: every user would be encourage to enter a way to remember a chosen by him/her Spanish word. So he/she would enter to the dictionary (my site database) ,e.g., English word: beach - playa (Spanish word). Then he/she would describe the method to remember Spanish word, e.g., "Image that U r on the beach and U play volleyball" - we have the word play and recall playa (mnemonics). I would like to give possibility of pic hotlinks, encourage for fun or little shocking memory links which is -- in the art of memory -- good. I would choose a language to take a niche of Google Search. The big question is if I don't lose my time on it?? (Maybe I need to find prototype way to check that idea?)

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• nut (UPS) and SSL certificates

  - by Mausy5043

  Today I installed nut on my Ubuntu server (14.03). $ uname -a Linux boson 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux The UPS is connected to another server (called neutron), so I use nut-client to keep tabs on the UPS state. When I do sudo upsc [email protected] I get: Init SSL without certificate database battery.charge: 15 battery.charge.low: 10 battery.charge.warning: 50 battery.date: not set battery.mfr.date: 2012/11/27 : The first line of the output concerns me. I've not seen this on other installations of nut on Debian-based servers. What can I do to get rid of that line? EDIT: This "Init SSL without certificate database" is extra annoying because it is not part of the output of upsc and therefore I cannot grep it out.

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• Samba domain trust errors on a specific interface

  - by John K

  We have a windows domain that also has RHEL member servers in it. All the servers have a primary network connection to the LAN, but some servers also have private dedicated links to one of our RHEL servers, which serves as a head to our SAN storage. This particular server is running Samba 3.5.15, and is running in domain authentication mode. Users can access shares on this server without a problem over the LAN connection from our Windows servers, but if a user tries to access the shares over a private link (i.e. a 192.168.1.2 address to the RHEL server) users get an error "The trust relationship between this workstation and the primary domain failed."

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• What is the recommended MongoDB schema for this quiz-engine scenario?

  - by hughesdan

  I'm working on a quiz engine for learning a foreign language. The engine shows users four images simultaneously and then plays an audio file. The user has to match the audio to the correct image. Below is my MongoDB document structure. Each document consists of an image file reference and an array of references to audio files that match that image. To generate a quiz instance I select four documents at random, show the images and then play one audio file from the four documents at random. The next step in my application development is to decide on the best document schema for storing user guesses. There are several requirements to consider: I need to be able to report statistics at a user level. For example, total correct answers, total guesses, mean accuracy, etc) I need to be able to query images based on the user's learning progress. For example, select 4 documents where guess count is 10 and accuracy is <=0.50. The schema needs to be optimized for fast quiz generation. The schema must not cause future scaling issues vis a vis document size. Assume 1mm users who make an average of 1000 guesses. Given all of this as background information, what would be the recommended schema? For example, would you store each guess in the Image document or perhaps in a User document (not shown) or a new document collection created for logging guesses? Would you recommend logging the raw guess data or would you pre-compute statistics by incrementing counters within the relevant document? Schema for Image Collection: _id "505bcc7a45c978be24000005" date 2012-09-21 02:10:02 UTC imageFileName "BD3E134A-C7B3-4405-9004-ED573DF477FE-29879-0000395CF1091601" random 0.26997075392864645 user "2A8761E4-C13A-470E-A759-91432D61B6AF-25982-0000352D853511AF" audioFiles [ 0 { audioFileName "C3669719-9F0A-4EB5-A791-2C00486665ED-30305-000039A3FDA7DCD2" user "2A8761E4-C13A-470E-A759-91432D61B6AF-25982-0000352D853511AF" audioLanguage "English" date 2012-09-22 01:15:04 UTC } 1 { audioFileName "C3669719-9F0A-4EB5-A791-2C00486665ED-30305-000039A3FDA7DCD2" user "2A8761E4-C13A-470E-A759-91432D61B6AF-25982-0000352D853511AF" audioLanguage "Spanish" date 2012-09-22 01:17:04 UTC } ]

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• Advice: should I focus on PHP + MySQL, or split my time for more JS and CSS? [closed]

  - by fakaff

  I started learning web development about three months ago (in between working my regular job), and I'm finally starting to get some vague, distant notion of understanding. I find the server-side stuff the most interesting; though I've not gone anywhere near Apache quite yet, which I assume will be necessary at some point. As cool as toying around with visuals and UI is, programming and database stuff inspires me with new ideas and possibilities every minute (I've even bought, on a whim, a wonderfully dry bunch of books on database theory and relational algebra). And whatever CSS or Javascript tutorial I'm doing, it often feels like a distraction from the PHP/MySQL stuff I'd rather be playing with. For someone like me who's just starting out, which is the most advisable course of action? (in terms of being marketable as a programmer): To focus on PHP and SQL stuff exclusively, and only once I master those to diversify my skills. To first learn all three (PHP/MySQL, Javascript, CSS and design) and only once I'm fluent in all three focus on PHP and databases?

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• Best way to go for simple online multi-player games?

  - by Mr_CryptoPrime

  I want to create a trivia game for my website. The graphic design does not have to be too fancy, probably no more advanced than a typical flash game. It needs to be secure because I want users to be able to play for real money. It also needs to run fast so users don't spend their time frustrated with game freezing. Compatibility, as with almost all online products, is key because of the large target market. I am most acquainted with Java programming, but I don't want to do it in Java if there is something much better. I am assuming I will have to utilize a variety of different languages in order for everything to come together. If someone could point out the main structure of everything so I could get a good start that would be great! 1) Language choice for simple secure online multiplayer games? 2) Perhaps use a database like MySQL, stored on a secure server for the trivia questions? 3) Free educational resources and even simpler projects to practice? Any ideas or suggestions would be helpful...Thanks!

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• IncidentsTracker v1.2 Screenshots

  - by samkea

  he IncidentsTracker v1.2 System is a system that was developed to track Incidents happening in any particular country. It is incorporated with a maping component to enable end users search for places where an incident has happened, enter data about it and then produce reports.It's a Winforms software that was developed in a plugin style using C#  with an extensibility pattern/framework. It sits on an SQl Server backend but can also use any other databases prefered. Its Administrator just has to add the path where the database will be and it will autio create the database. This software was orignally developed to help UN Agancies and NGOs in thier work but can also be ustilised by other entities like the police, the human rights organisations, roads authority, etc etc. The development of a newer version(IncidentTracker v2) has been started in silverlight. Screenshot 01: Login. Screenshot 02: View and Search. Screenshot 03: Mapping Component

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• Map the 'Domain Admins' group into the local Ubuntu 'admin' group

  - by Miquella

  I have configured an Ubuntu 10.04 box to connect to our domain (Windows 2003 R2) using Likewise-Open. All the users can authenticate as expected. However, the domain administrators do not have administrative privileges to the machine. After working at this for a few hours, I've determined what I think may be a solution: if I map the 'Domain Admins' group from the Active Directory into the local 'admin' group, the users should get the appropriate permissions. But I have no idea how to do that. Does this even sound like the correct approach? A similar question was asked on StackOverflow and then migrated here. But it was never answered as it was recommended to be asked here instead. Thanks in advance!

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• FOSS Development: Who develops the OS-specific packages?

  - by achristi

  I have a couple of FOSS projects. They can be a bit of a pain to get running unless you've got dependencies in place already, which I figure is par for the course for FOSS projects. We know that each free operating system out there has its own package management systems. A few of them, such as homebrew on Mac OS or AUR on Arch linux are very friendly to community contributions. What I am wondering is, who exactly is expected to contribute packages? Primarily I am concerned with the case of small or developing projects, since it's pretty standard for the big projects to be put in there by the OS maintainers. From my perspective, it is something of a chicken-egg problem, because your software will not make its way into a package system if it does not have users, and it is less likely to gain users if it is not easy to install and use. For the sake of discussion, let's assume that the software in question is actually legitimately useful. I can see where people could create crapware or spam and that should obviously be kept out of any package system. So, in summary, whose job is this? Is it spammy for a FOSS software dev to put his own work into various OS package repositories?

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• Behaviour of disabling "Allow non-administrators to receive notifications" GPO

  - by Jaymz

  Hi everyone, As the title suggests, I'm trying to figure out the specific behaviour of the following GPO when disabled: Administrative Templates Windows Components Allow non-administrators to receive update notifications We've just started using WSUS, and have added a few machines for testing. At the moment, this is set to Enabled. The problem with this setting is it seems to allow users to opt out of certain updates if they deselect the checkbox after hitting custom install. My main concern with disabling this setting is this: Does it stop non-admins from getting the installs deployed to them? My guess would be that it will just install them silently at the set scheduled time, suppressing any prompts and ensuring they don't get the opportunity to cancel them (this is what I want). My worry is that non-admin users will never get updates pushed to them unless an admin goes and logs on to their machine (not what I want, and seems like a silly situation to be in). Thanks in advance, Jaymz.

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• Remove values from array on foreach PHP

  - by user104531

  I have an array like this: Array ( [0] => Array ( [id] => 68 [type] => onetype [type_id] => 131 [name] => name1 ) [1] => Array ( [id] => 32 [type] => anothertype [type_id] => 101 [name] => name2 ) ) I need to remove some arrays from it if the users has permissions or not to see that kind of type. I am thinking on doing it with a for each, and do the needed ifs inside it to remove or let it as it. My question is: What's the most efficent way to do this? The array will have no more than 100 records. But several users will request it and do the filtering over and over.

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• open source knowledge base CMS system

  - by Thomi

  I'm looking for an open source knowledge base system that uses tags, rather than free-text search to identify articles (a lot like serverfault does). I've looked at twiki, which many people suggested, but haven't found what I'm looking for. Basically I want to be able to create and tag articles, and provide an easy way for anonymous users to search based on tags. Edit: OK, here's some more detail regarding what I want. Basically, all the knowledge base systems I have seen so far are a collection of articles, each article with a title. Most of them allow you to categorise articles into groups and sub-groups. Users of the system can search for information using a title search, for example "How do I print from AwesomeProduct?" - which then shows a list of any articles that match that search text. This is fine and dandy when your KB is for one version of the software product (the mythical AwesomeProduct ver 1.0). However, the development team then go ahead and create a new version (ver 2.0) that adds many new features and changes some existing features. Now, how do we support both products in the same KB? The Naive method is to copy all articles from 1.0, and update them for 2.0, adding and removing articles in 2.0 as required. We can then add text at the top of every 1.0 article that says: "this articles applies to 1.0 only, to see the 2.0 version, click here" (or something similar) The problem with articles being indexed in the system by title is that it's very hard to filter based on meta-data like version. What happens when we create version 3.0 or 4.0? The end-situation here is that you have a mess of articles. They're hard to search, hard to filter, and even harder to manage. The solution (it seems to me) is to use tags, rather than text as the article index mechanism. So articles can be tagged with a tag representing the software version, topic area etc. etc. Users can then filter based on tag - an example search might be "version_1 printing" - which straight away gives a list of articles with all these tags. So that's what I'm looking for - a KB system that uses tags, rather than text to index many articles. I'm sure I could build something with drupal, but I was hoping for something that worked out-of-the-box.

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• Clearos open vpn vs windows open vpn client where client connects with no default gateway

  - by Paul

  Am using clearos as open vpn server and configured my users on windows machine with open vpn client. My problem is that users connect to the server without a default gateway and also with ip conflicts, i can ping the server but i can not ping any user behind the server. please any one can help to find out what causes the clients to connect without a default gateway and also not to be able to ping any user behind the clearos open vpn server. Help with a step by step guide of installing open vpn on clearos and open vpn clients on windows. Thanks

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• Windows network: deny file access to another user if file is currently open

  - by Steve

  Some users on my network are having difficulties saving files, because the file is open elsewhere. Let's say Lemuel wants to edit a file, but Bernice in the next office over is working on it. Lemuel opens, edits, and tries to save, but then gets a "no write access" error. Bernice chortles with glee (since earlier that week Lemuel stole her sandwich). Unfortunately, various softwares will not warn the user that they have opened a read-only file. Is there a way (in Windows) to limit file access to ONE user only, i.e. 777 for the first user to open the file, and 000 for all users after that? (Sorry for the Linux terminology but it gets my point across).

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• How to remove SelectionLinks extension from Chrome on Windows?

  - by Faustas

  It's not possible to remove it using the standard extension disablement/removal features in Chrome - the checkbox is disabled. I also found that the extension gets installed under C:\Users\\AppData\Local\Google\Chrome\User Data\Default\Extensions\ - tried to delete it there, but it's still active. In fact, I tried deleting the whole C:\Users\\AppData\Local\Google\Chrome\User Data\ directory, but the next time Chrome starts, it recreates it and the extension gets recreated. Seems like there is something running in Windows that keeps detecting that Chrome extension is not there anymore and reinstates it. Any ideas how to get rid of it?

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• mRemote and RoyalTS both are not able to RDP connect me to a Windows Server 2008 system?

  - by djangofan

  I am completely stuck on this one. If I start a RDP session independently of these 2 programs everything works fine. My RDP session connects, I click "OK" to accept the "Notice To Users" security message and then it shows me the login screen where I enter my password manually. Now, if I try to use either mRemote or RoyalTS to create this connection, I get the same behavior except that I get a "The user name or password is incorrect." message. Now, I know this cannot be true since I can manually connect with RDP. So, what is the problem with these 2 pieces of software that prevents me from logging in? I have no problems with connecting to Windows XP systems with these programs. Additionally, I wish I knew how to get one of these programs to automatically click the "OK" button on the "Notice To Users" message while automatically attempting to log me in as part of the login process. Can they do that?

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• Notification if SyncToy fails

  - by Joel Coehoorn

  I support a number of laptop users. In the past (before there were many laptops), each user's computer was set up so that their My Documents folder was mapped to a shared folder on the server. This worked very well for desktops, but has several obvious downsides for laptops (no files when you're off-site, etc). I'm exploring several alternatives for laptops to better map the shared drives, and SyncToy seems the best so far. I have a couple trial users set up so that it syncs automatically whenever they log in, along with a desktop icon they can click if they know they'll need something saved before the next login. My problem is that I'm concerned how I, as the maintainer of this system, can spot failures. I don't want my first indication of a problem to come after a user drops their laptop in a lake and it turns out nothing was synced for the last year. Any ideas?

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• Link to user directory displayed with wrong name in start menu

  - by wierob

  In the start menu the link to my user directory is displayed with a wrong name e.g. foo When I click on the link in the start menu the explorer opens my correct user directory but the addressbar still names it foo. However, when I open a cmd from that directory the location is correctly shown as C:\Users\myUserName. Furthermore there is no C:\Users\foo directory. How can I fix this (i.e. ths link in the startmenu should be named myUserName)?

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• Has anyone figured out how to use same username with different passwords (Windows)

  - by Coder

  Tried Googling, tried net use, and anything I could, with no results. I have a PC with users, and I have a network server with shared folders. For some users the usernames of the share and local account match, but the passwords are different (a good security practice). Unfortunately, Windows doesn't want to remap the drives on login, and asks for credentials when I try to connect. If I enter the password, the connection succeeds, but it still fails on next login, even if I have checked the "remember" checkbox. On PC: usera@machinea pass1 On NAS: usera@nas pass2 net use z: \\nasip\usera /user:nasip\usera pass2 /persistent:yes Credential store seems to have the user credentials stored... But the mapping fails all the time.

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• The Problem Should Define the Process, Not the Tool

  - by thatjeffsmith

  All around awesome tool, but not the only gadget in your toolbox.I’m stepping down from my SQL Developer pulpit today and standing up on my philosophical soap box. I’m frequently asked to help folks transition from one set of database tools over to Oracle SQL Developer, which I’m MORE than happy to do. But, I’m not looking to simply change the way people interact with Oracle database. What I care about is your productivity. Is there a faster, more efficient way for you to connect the dots, get from A to B, or just get home to your kids or to the pub for happy hour? If you have defined a business process around a specific tool, what happens when that tool ‘goes away?’ Does the business stop? No, you feel immediate pain until you are able to re-implement the process using another mechanism. Where I get confused, or even frustrated, is when someone asks me to redesign our tool to match their problem. Tools are just tools. Saying you ‘can’t load your data anymore because XYZ’ isn’t valid when you could easily do that same task via SQL*Loader, Create Table As Selects, or 9 other different mechanisms. Sometimes changes brings opportunity for improvement in the process. Don’t be afraid to step back and re-evaluate a problem with a fresh set of eyes. Just trying to replicate your process in another tool exactly as it was done in the ‘old tool’ doesn’t always make sense. Quick sidebar: scheduling a Windows program to kick off thousands if not millions of table inserts from Excel versus using a ‘proper’ server process using SQL*Loader and or external tables means sacrificing scalability and reliability for convenience. Don’t let old habits blind you to new solutions and possibilities. Of couse I’m not going to sit here and say that our tools aren’t deficient in some areas or can’t be improved upon. But I bet if we work together we can find something that’s not only better for the business, but is also better for you. What do you ‘miss’ since you’ve started using SQL Developer as your primary Oracle database tools? I’d love to start a thread here and share ideas on how we can better serve you and your organizations needs. The end solution might not look exactly what you have in mind starting out, but I had no idea I’d be a Product Manager when I started college either What can you no longer ‘do’ since you picked up SQL Developer? What hurts more than it should? What keeps you from being great versus just good?

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• Roaming Profiles: Best Practices

  - by Noah Clark

  I want to setup roaming profiles for about 50 users. What is the best way to go about doing this? What are the best practices. I've read about desktops/my Documents being TOO big. How big is too big? We have a few users who keep a lot of media on their machine to listen to throughout the day. I would imagine they have a few gigs of MP3's in their My Documents folder. How do you deal with this? Thanks!

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• Search Google Books with the Zend Framework's Zend_Gdata Component

  Learn how to search Google's vast books database using the Zend Framework's powerful Zend_Gdata comp ...

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• Search Google Books with the Zend Framework's Zend_Gdata Component

  Learn how to search Google's vast books database using the Zend Framework's powerful Zend_Gdata comp ...

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• isolate web servers on intranet with dfl-800

  - by microchasm

  I administer a small network (10 users). I'm getting ready to deploy a internal webapp that will be hosted and accessed locally only. There are about 10 users on the network (192.168.111.0/24), a win2k3 server, apache (RHEL), and Mysql (RHEL), and various miscellaneous peripheries. I'd like to isolate the apache and sql boxes into a seperate area of the lan to keep things easier to maintain/grow. I've been reading about vlans, subnets, etc.. I'm not clear, however, which would be the best solution for our setup. Thanks for any tips and or advice.

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