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• Virtualbox PUEL Interpretation

  - by modernzombie

  Sorry if this seems like a lame question but I want to be sure before making a decision. The Virtualbox PUEL license says “Personal Use” requires that you use the Product on the same Host Computer where you installed it yourself and that no more than one client connect to that Host Computer at a time for the purpose of displaying Guest Computers remotely. I take this to mean that if I want to setup a development server (web server) that's only used by me to do my work this falls under personal use. But if I make this server available for clients to connect to the websites to view my progress this is no longer personal use also meaning that using Vbox to run a production web server is also against the license. Again sorry if this is a dumb question but I find it hard to follow the wording used in licenses. I know I could go with OSE but I have not looked into VNC versus RDP yet. Thanks.

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• Does nginx auth_basic work over HTTPS?

  - by monde_

  I've been trying to setup a password protected directory in a SSL website as follows: /etc/nginx/sites-available/default server { listen 443: ssl on; ssl_certificate /usr/certs/server.crt; ssl_certificate_key /usr/certs/server.key; server_name server1.example.com; root /var/www/example.com/htdocs/; index index.html; location /secure/ { auth_basic "Restricted"; auth_basic_user_file /var/www/example.com/.htpasswd; } } The problem is when I try to access the URL https://server1.example.com/secure/, I get a "404: Not Found" error page. My error.log shows the following error: 011/11/26 03:09:06 [error] 10913#0: *1 no user/password was provided for basic authentication, client: 192.168.0.24, server: server1.example.com, request: "GET /secure/ HTTP/1.1", host: "server1.example.com" However, I was able to setup password protected directories for a normal HTTP virtual host without any problems. Is it a problem with the config or something else?

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• access server from blocked machine

  - by user40994

  I want to access my Linux server(vnc) from a distant machine which has most ports blocked with the exception of 21, 25, 80, 135, and 445. So, I would like to know if theres a way to communicate with my vnc server on the server, while using an available port on client. i.e. port 25 So I think essentially I need the serverside router to forward packets coming in on port 25 to linux server machine(servername, p5900), which should forward them on to itself on port 5900. And when transmitting, I need the server OR to router to send out packets changing their port to 25. Im totally lost on how to acheive this. Please help(much appreciated). Thanks I do not use smtp.

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• What is involved with writing a lobby server?

  - by Kira

  So I'm writing a Chess matchmaking system based on a Lobby view with gaming rooms, general chat etc. So far I have a working prototype but I have big doubts regarding some things I did with the server. Writing a gaming lobby server is a new programming experience to me and so I don't have a clear nor precise programming model for it. I also couldn't find a paper that describes how it should work. I ordered "Java Network Programming 3rd edition" from Amazon and still waiting for shipment, hopefully I'll find some useful examples/information in this book. Meanwhile, I'd like to gather your opinions and see how you would handle some things so I can learn how to write a server correctly. Here are a few questions off the top of my head: (may be more will come) First, let's define what a server does. It's primary functionality is to hold TCP connections with clients, listen to the events they generate and dispatch them to the other players. But is there more to it than that? Should I use one thread per client? If so, 300 clients = 300 threads. Isn't that too much? What hardware is needed to support that? And how much bandwidth does a lobby consume then approx? What kind of data structure should be used to hold the clients' sockets? How do you protect it from concurrent modification (eg. a player enters or exists the lobby) when iterating through it to dispatch an event without hurting throughput? Is ConcurrentHashMap the correct answer here, or are there some techniques I should know? When a user enters the lobby, what mechanism would you use to transfer the state of the lobby to him? And while this is happening, where do the other events bubble up? Screenshot : http://imageshack.us/photo/my-images/695/sansrewyh.png/

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• Proxy Server suggestions

  - by Jon Menefee

  Here is the question I have that hopefully is not too general of a question. I have a network with approximately 25 PC's, 3 servers and 25 IP cameras. I have a firewall already on the network and it works fine for what I need, but my client is asking me if there is a way to put a Proxy server on the network to monitor where his employees are going when they surf the Internet. He is not wanting to block them (at least not thru the Proxy server), but he wants to make sure that they arent going to sites that would compromise the networked PCs. I have looked at TMG and it is a little more than what I want. I hesitate adding another firewall to the system because of the security cameras that are presently on the network (IP Cameras). I just want to put a policy in AD that would make certain Users (or Computers) use a Proxy server. Any suggestions on a good proxy server are welcome. Thank you

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• Server 2003 Filter mobile devices via MAC

  - by msindle

  At one of my client's sites I need to keep my users unauthorized devices off the wireless. They all know the SSID and Password because many of them have laptops that need the wireless. I'm running out of IP address's and we have sent out numerous emails asking them to stay off, but like most users they ignore IT's email. I'm currently running Server 2003 as the GC/DC (but have 2008 servers in place) and 2 Netgear WNAP320. I've seen several posts similar to what I'm looking for but they seem to deal with Linux. My question is how do I go about doing this without migrating (scheduled for the end of the year) to a new server and is it possible to do this within Server 2003? Thanks msindle

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• How can I avoid hard-coding YubiKey user identities into the PAM stack?

  - by CodeGnome

  The Yubico PAM Module seems to require changes to the PAM stack for each user that will be authenticated with a YubiKey. Specifically, it seems that each user's client identity must be added to the right PAM configuration file before the user can be authenticated. While it makes sense to add authorized keys to an authentication database such as /etc/yubikey_mappings or ~/.yubico/authorized_yubikeys, it seems like a bad practice to have to edit the PAM stack itself for each individual user. I would definitely like to avoid having to hard-code user identities into the PAM stack this way. So, is it possible to avoid hard-coding the id parameter to the pam_yubico.so module itself? If not, are there any other PAM modules that can leverage YubiKey authentication without hard-coding the stack?

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• Switching to Chrome from IE

  - by Alan Parrish

  Hi, I work in IT at a school and we recently updated our database software, however the web access that the teachers use to do registration does not work too well with Internet Explorer 7 and we're thinking about switching to chrome (mostly due to me hating IE in general) but the problem we have is that users are unable to migrate their bookmarks over from IE due to account restrictions, is there any way to get this working? A bit of info about the system if it could be helpful; Almost all the client PCs are running Win XP SP2. My colleagues machines are running Windows 7, I use OS X Snow Leopard and most of out servers are running windows server 2003 (with the exception of 2 one on 2000 server and another on 2008 R2). The Active Directory Controller is running Windows Server 2003

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• Mail.app slow to include new messages

  - by Chris Tompsett

  With Leopard I was able to link to the University's Exchange 2003 server with and IMAP connection and mail out directly vie the SMTP client. With Snow Leopard I attempted to update to a full Exchange service (Exchange 2007). Almost all has worked OK (ical, address, etc.) except that new mail posted to my email account, which is visible using a 'web' interface to Exchange remains invisible for some random number of hours. Those who are running the Exchange server have no interest in discussing the problem. Has anyone else had a similar experience?

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• 1080p HD TV + what is minimum spec pc required to stream HD movie files to it?

  - by rutherford

  I want to stream hi-def (non flash-based) movies from my future minimum spec pc to my network-ready HDTV. What I want to know is a) when streaming from a computer (local wifi network), is the computer's cpu/video/ram resources used to the same extent as it would be if playing back on the computers local screen? If not what are the differences? b) So with streaming hd content what is the minimum spec processor I should go for, if i) only one TV is acting as client ii) two TVs are simultaneous clients.

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• Share folder with active directory group permissions

  - by Hihui

  I have a Debian as a member of our AD (which is a 2k3). I want to share 2 folders from our Debian. 1 with full access for everyone, the second only readable by group "ADM", and "PROD". Part of smb.conf: [global] workgroup = MYDOMAIN realm = MYDOMAIN.LOCAL netbios name = SERV-FTP wins server = "IP serv 2k3" security = domain [JUKEBOX] // full access path = /media/JUKEBOX/JUKEBOX comment = sharing writable = yes browsable = yes public = yes read only = no valid users = @ASYLUM\prod_std admin users = @ASYLUM\ADM [SOFTWARE] comment = Software path = /media/JUKEBOX/SOFTWARE valid users = @ASYLUM\prod_adv, @ASYLUM\ADM writable = yes read only = no My log : [2013/10/25 09:24:37.316643, 0] smbd/service.c:1055(make_connection_snum) canonicalize_connect_path failed for service SOFTWARE, path /media/JUKEBOX/SOFTWARE And, from my Windows's client, if i want to access on that folder : Windows can't access to \serv-ftp\software Where is the problem ... ? Thx !

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• SSH disconnects active session after 20 minutes

  - by Paramaeleon

  I’ve just set up a new Linux box (OpenSuSE 12.3 on VmWare). Now I stated that my SSH shell sessions are disconnected exactly after 20 minutes, clearly with activity. (Putty: “Network error: Software caused connection abort”) I already set Putty to send keep alives every 64 sec. In sshd_config, I set ClientAliveInterval 50 ClientAliveCountMax 2 and did a deamon reload. Didn’t help. About two minutes after the link breakdown, ssh reports to /var/log/messages: … … sshd[…]: Timeout, client not responding. … … sshd[…]: pam_unix(sshd:session): session closed for user root I don’t encounter this behaviour when connecting to other virtual machines, so I guess the problem isn’t in the network. Any help is appreciated.

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• Bulk Deleting All Messages in a Folder in Microsoft Outlook Web Access [closed]

  - by Cerin

  Possible Duplicate: Multiple delete in Microsoft Outlook Web Access How do you delete all messages in a folder in Outlook, preferrably through Web Access? I left my Outlook account unattended for several days (on vacation) and when I got back I found several folders with over 5k emails, mostly error logging or spam. When I try to open the Outlook client, it just locks up, presumably unable to download that many emails. I can view at most 100 emails at a time, but I can't select all emails to delete or permanently delete them immediately, so manually deleting this many emails is going to take a while. Gmail has a similar feature to select and delete all emails in a folder, and that's free so I figure being a quality non-free product from Microsoft, Outlook should have a similar feature (yes that's sarcasm). I've Googled, but I'm not finding anything. Is this possible?

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• Print Managment

  - by nardone25

  Hello everyone, I am having a ID10T error LOL,. First I am using window server 2003 r2 edition. I installed on a domian controller print managment. So this is where all 48 printers I have are installed. I just got a new printer. I gave it an IP for the machine and when I head into the server room i tried to add it to the server. I can print a test page, when I am logged on to the print server, but on my client computer when he goes to add a printer in window xp pro the printer isn't listed in add print for network. What did I do wrong?

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• Cannot connect to FTP server from external host

  - by h3.

  I have a FTP server (vsftpd) setuped on a Linux box (Ubuntu server). When I try to connect with a computer on the same network everything works fine as expected. But as soon the IP is external it won't connect.. I first assumed the port was blocked, but then: localserver:$ sudo tail -f /var/log/vsftpd.log Wed Jan 13 14:21:17 2010 [pid 2407] CONNECT: Client "xxx.xxx.107.4" remotemachine:$ netcat svn-motion.no-ip.biz 21 220 FTP Server And it hangs there. Do any ports other than 21 need to be open?

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• Using socat to exec php cli

  - by RoyHB

  There are multiple client programs that periodically connect to a port on my server and send a single line of text. When a connection to the port is made I need to start a PHP CLI script that processes the data. There may be many of the remote scripts running/connecting at more or less the same time so I think it would be best if socat forked a process for each connection to run the script. I've gotten socat to do most of what I need, using the command socat tcp-l:myport,fork exec:mypath/socatTest.php I can read the input on php://stdIn. All is good. The problem is that the process doesn't seem to fork, so if a second external program sends data while another is doing the same it gets a connection refused error. Where have I gone wrong?

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• very Slow machine when searching the network

  - by Adam

  Hi We are using a Dell desktop machine with 2 GB RRAM & Pentium D 3.00 GHz. The machine is very slow when using our Sales program and searching over the local network. We have this problem on 2 machine which are the same spec - This one and another. All of our other machine (10) run fast with no issues. Our server is SBS 2008 and AV is AVG. All of our client machines are WinXp Pro SP3 using the latest drivers. Any ideas?

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• What's wrong performing unit test against concrete implementation if your frameworks are not going to change?

  - by palm snow

  First a bit of background: We are re-architecting our product suite that was written 10 years ago and served its purpose. One thing that we cannot change is the database schema as we have 500+ client base using this system. Our db schema has over 150+ tables. We have decided on using Entity Framework 4.1 as DAL and still evaluating various frameworks for storing our business logic. I am investigation to bring unit testing into the mix but I also confused as to how far I need to go with setting up a full blown TDD environment. One aspect of setting up unit testing is by getting into implementing Repository, unit of work and mocking frameworks etc. This mean there will be cost and investment on the code-bloat associated with all these frameworks. I understand some of this could be auto-generated but when it comes to things like behaviors, that will be mostly hand written. Just to be clear, I am not questioning the important of unit testing your code. I am just not sure we need all its components (like repository, mocking etc.) when we are fairly certain of storage mechanism/framework (SQL Server/Entity Framework). All that code bloat with generic repositories make sense when you need a generic layers with ability to change this whenever you like however its very likely a YAGNI in our case. What we need is more of integration testing where we can unit-test our code with concrete repository objects and test data in database. In this scenario, just running integration test seem to be more beneficial in our case. Any thoughts if I am missing any thing here?

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• QNAP TS-419p as a VPN Gateway?

  - by heisenberg

  Hello, I am hoping one of you might be able to help. I want to make files stored on shared folders on a QNAP TS-409p available to users over a VPN link. How is the possible? Can someone explain what I need to do. What do I need to do at the router and what do I need to do on the QNAP NAS? Effectively, what I want do do is use the built in Windows vpn client to connect to my home network and then be able to browse the shared folders. Thanks in advance.

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• Ubuntu Linux -- create custom burnable/bootable DVD image?

  - by ashgromnies

  I recently developed some kiosk software that runs on Ubuntu Linux, and my client needs me to set up ten more computers with the complete software package(and that number will only grow in the future). So I'm looking for a way to make this less of a pain in the neck and prevent me from shooting myself in the foot -- I had to disable some things on the installations of the operating systems like screensavers, automatic updates, etc. that would pop up and disrupt the kiosk operation. I don't feel comfortable doing that by hand across 10 computers, it seems stupid. Does anybody have recommendations for software that would let me burn an installable DVD with a complete image of the hard drive from one of the devices? I've looked at Clonezilla, G4L, and PartImage and I'm still not quite sure if any of them offer what I need. I know PartImage for sure won't work, because it doesn't support Ext4.

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• Blacklist a single access point of a wireless network

  - by Zr40

  At my university, one of the wireless access points is failing. When something tries to associate to the network using that access point, it deassociates the client, claiming 802.1X authentication failure. Other access points do work normally using the same credentials. The issue has been reported, but after a month it still has still not been fixed. Now, I'm looking for a way to blacklist the access point's BSSID, so the OS prefers other access points on the same SSID. How can I blacklist specific BSSIDs in either Mac OS X Snow Leopard or Windows 7?

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• Remote desktop on Mac

  - by Crystal

  I just started a job using a Mac. I also have a Mac at home. The IT dpt here does not know how to remote login to my desktop from home. They installed the Cisco VPN client and game an account for that. I think at this point I need some remote desktop software to login to my work Machine. I looked online and downloaded the free version of TeamViewer. I didn't really understand how to use it. I have my work computer's name, and was hoping that would be enough to login, but I think I am mising a piece of the puzzle. Any thoughts on how to login to my work computer? Thanks.

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• My home partition slowly fills up until the system is unable to complete even simple tasks

  - by user973810

  So I have an awesome configuration on my home pc. My /home directory has its own partition. My home partition slowly fills up until the system is unable to complete even simple tasks. For example, when this issue has occured, I can load up firefox. It just pops up an error message saying that it cannot be done. Rebooting solves the issue. The strange thing is, I've run baobab and it doesn't notice a problem. There should be hundreds of gigabytes of data somewhere, but it doesn't see it. Does anyone have any idea of how I might troubleshoot this issue? I'm thinking I could do lsof but I've always found the output of that to be too much information. Maybe my drive is, like, dying. Edit: is there a /home analog of /var that gets cleared out at boot time? Maybe I could check in there next time I notice this problem to see if I can divine what's up. Update: I found the issue. my .xsession-errors file is filling up with Authentication deferred - ignoring client message Is there a way I can see what is causing this error and fix it?

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• multi-thread in mmorpg server

  - by jean

  For MMORPG, there is a tick function to update every object's state in a map. The function was triggered by a timer in fixed interval. So each map's update can be dispatch to different thread. At other side, server handle player incoming package have its own threads also: I/O threads. Generally, the handler of the corresponding incoming package run in I/O threads. So there is a problem: thread synchronization. I have consider two methods: Synchronize with mutex. I/O thread lock a mutex before execute handler function and map thread lock same mutex before it execute map's update. Execute all handler functions in map's thread, I/O thread only queue the incoming handler and let map thread to pop the queue then call handler function. These two have a disadvantage: delay. For method 1, if the map's tick function is running, then all clients' request need to waiting the lock release. For method 2, if map's tick function is running, all clients' request need to waiting for next tick to be handle. Of course, there is another method: add lock to functions that use data which will be accessed both in I/O thread & map thread. But this is hard to maintain and easy to goes incorrect. It needs carefully check all variables whether or not accessed by both two kinds thread. My problem is: is there better way to do this? Notice that I said map is logic concept means no interactions can happen between two map except transport. I/O thread means thread in 3rd part network lib which used to handle client request.

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• Set Up Remote Desktop at Home

  - by Rev

  I'm sure this has been asked before, but I'm unable to find a clear set of instructions. I'm currently using LogMeIn Hamachi to enable Windows 8's Remote Desktop feature on my home computer (running Win8 Pro x64). Unfortunatley, I can't use this method to access my home computer from my Surface Tablet, as I can't install in the Hamachi client. So how can I set up Remote Desktop without using LogMeIn Hamachi? A link to a noob-friendly tutorial would be greatly appreciated. I haven't been able to find anything that I understand (and I am pretty technical, router stuff just stumps me for some reason). EDIT: And I don't want to use a third party service like TeamViewer, in my experience those tools are laggy and quite horrible. The Remote Desktop feature has been excellent.

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