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• FreePBX: Asterisk in the Cloud (EC2) Audio Problems

  - by neezer

  Please pardon the newbie question, but I can't seem to figure this out. I followed the Voxilla's tut to the tee: http://voxilla.com/2009/10/15/voxill...p-by-step-1457 But in making calls, my softphones connect, yet no audio (in either direction). I know from poking around the forums that this is generally caused by two factors: NAT and audio codecs. I (being new to the arena), however, don't know which. I believe I have Asterisk and the clients restricted to just ulaw, and I also believe I have the correct ports open, and my externip set correctly (I think the Voxilla AMI does this automatically, since it's in the cloud). I'm a bit lost. I'd be happy to post whatever configuration files that might help, provided you tell me where they are on the filesystem. But like I said before, this is effectively a vanilla install of Voxilla's own FreePBX AMI. I'd appreciate any help or guidance here. Thanks!

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• Website is not clickable in Windows XP Internet Explorer 7

  - by c-sharp newbie

  I have installed Windows XP Virtual PC on Windows 7 to test a site that is having issues in IE7 on windows xp - the website loads up but you cannot click on hyperlinks - its like the website has frozen - now is this a browser support issue or OS issue? Can anyone shed any light on this? Is there any browser tools i can use to spot any problems? Sorry if i have been too vague - not much else to say really - completely lost.. Maybe this might help a little; Any guidance is appreciated UPDATE: I think i know what the problem maybe - its the jQuery UI reference that is causing issues with the site. Has anyone else experienced similar problems? jquery library used was jquery-1.8.0.min.js

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• FreePBX: Asterisk in the Cloud (EC2) Audio Problems

  - by neezer

  Please pardon the newbie question, but I can't seem to figure this out. I followed the Voxilla's tut to the tee: http://voxilla.com/2009/10/15/voxill...p-by-step-1457 But in making calls, my softphones connect, yet no audio (in either direction). I know from poking around the forums that this is generally caused by two factors: NAT and audio codecs. I (being new to the arena), however, don't know which. I believe I have Asterisk and the clients restricted to just ulaw, and I also believe I have the correct ports open, and my externip set correctly (I think the Voxilla AMI does this automatically, since it's in the cloud). I'm a bit lost. I'd be happy to post whatever configuration files that might help, provided you tell me where they are on the filesystem. But like I said before, this is effectively a vanilla install of Voxilla's own FreePBX AMI. I'd appreciate any help or guidance here. Thanks!

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• How do I use the Microsoft IIS Diagnostics Toolkit to troubleshoot my problems?

  - by smartdirt

  I have downloaded the [IIS Diagnostics Toolkit (x86)][1] [1]: http://www.microsoft.com/downloads/en/details.aspx?familyid=9bfa49bc-376b-4a54-95aa-73c9156706e7&displaylang=en and I was wondering how to use it. I'm not a system admin just a developer trying to work my way around a strange problem. I have an iis server running php(not my choice) and every once in a while the application will not allow anyone to log in and then a little while later it just starts working again. I look in the event viewer and don't see anything and the iis logs are no help either. I read somewhere about someone using the the toolkit to diagnose there problem. I just need a little guidance on how to use this tool. Thanks.

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• How can I get started with BigData?

  - by ????? ????????

  I have a programming background, and I've done lots of database design and written lots of queries with Sql Server. I am really excited about looking at bigdata solutions. I know almost nothing about it. The way I want to learn is to sign up for a sandbox where I can try things out. questions Is there a sandbox where I can play around with hadoop? It does not have to be free. Would amazon EMR be the right path to go? What technologies should I be looking at to get started quickly? Is there a 'bigdata' dataset that is available to play with? Thank you so much for your guidance.

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• How do I pick a motherboard?

  - by EpsilonVector

  When building your own computer one part was always a mystery to me: the motherboard. Picking a CPU/GPU/memory is easy- you just figure out where the various chips are in the low end to high end scale, do a little market research on what current games demand, and pick the parts from their respective continuums of low-to-high-end models. A mother board is more complicated though. Its features are not as obvious as "this motherboard is faster than that motherboard". Now you need to deal with part compatibilities, bus speeds, maybe power management stuff, etc. I'm interested in a short guide for selecting a motherboard, especially- what pitfalls to avoid (for example, can bus speed become a bottleneck?). To clarify: I'm not looking for motherboard recommendations. I'm looking for guidance regarding how to evaluate the fitness of a motherboard given the rest of the computer parts.

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• squid ip based authentication

  - by Ian R.

  I have 10 ip's on a VPS and squid3 installed. I want to lease all of them to 10 co-workers. The authentication should be ip-based. Basically I want to allow only their home ip address (not internal - we're not on a network) to connect to my squid. I would also like to offer them a dedicated ip from my outgoing addresses. I managed to get it working using username/password based authentication but some software do not support that feature so I would like to switch to this limit if possible. Any guidance/sample acl's?

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• NVIDIA Driver Crashing on Custom-Built Windows 7 PC

  - by srunni

  I've got a custom-built PC with these specs: Fractal Design Define R3 ASUS P8Z77-V motherboard Intel Core i7-2700k with Thermalright HR-02 Macho Cooler NVIDIA GeForce GTX 560 with Arctic Cooling Accelero Twin Turbo II Cooler Crucial M4 128 GB SSD 1 TB Hitachi HDD G.SKILL Ares Series 2x8 GB RAM (x2) SeaSonic 520W PSU Windows 7 Ultimate SP1 (x64) NVIDIA driver version 301.42 Upon building the PC, I overclocked the CPU (but never the GPU), and there were no problems for 1-2 months. Then I started getting crashes with this error when doing anything that's computationally or graphically intensive: I un-overclocked the CPU, but that hasn't fixed anything. This is what the inside of my case looks like: I'd appreciate any guidance on resolving this problem. I did get some of the thermal paste on the graphics card when installing the aftermarket cooler, but there were no issues for a month or two. Update I did a clean install and the issue persisted - looks like it's a hardware issue. I will try removing/cleaning/reseating all the parts.

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• How to achieve redundancy across data centers?

  - by BrandonBT

  I have a LAMP server with a lot of hardware redundancy built in. I am not worried about the server becoming unavailable. What I am worried about, however, are potential network issues in the data center the server is in. What I would like to have is another server in another data center for redundancy. Load balancing is less of a concern. With that said, I am relatively clueless on two points: How to have two servers in two geographically separate data centers that have exactly the same data, in terms of both files and MySQL databases. How to ensure that all traffic coming into one data center are automatically transferred to the other database in the case of a network or server failure at the first data center. Any guidance on how to accomplish the above two problems would be greatly appreciated.

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• Troubles doing transparent proxy for virtual machines

  - by Dan H

  Hi iptables gurus. First here is the basic topology: Internet | Gateway | Workstation---eth0---virbr0 | +-----+-----+ | | | vm1 vm2 vm3 I need to test a traffic analyzer running on my workstation, listening on some port (say 8990) on eth0. The rule [I think] I want is "any packets leaving virbr0 going anywhere to port 80 must instead go to port 8990 on eth0". My software running on port 8990 does its own check of the NAT packet mangling to push the packets through after it inspects them. I've been banging my head on this, with different variants of: iptables -t nat -A PREROUTING -i virbr0 -p tcp --dport 80 -j DNAT \ --to 10.0.0.10:8990 And I've tried the more generic method of using the mangle table with --set-mark and ip rule add fwmark, but I'm not getting it. I guess what's confusing me is that everything runs on the same box. Thanks for any guidance.

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• How to allow simple file sharing on Windows Server 2008R2 through VPN

  - by Martin Wiboe

  We are a small, distributed company with a Windows Server 2008R2 installation. I would like to set up a way for our employees to connect securely to this server via VPN and then be able to map a network drive. I have gotten this to work somewhat by installing the Network Policy and Access Services Role on the server and using the default settings. I have also created a network share on the server. The problem is that our connectivity is sporadic (sometimes the service stops listening on the port or simply refuses to authorize correct credentials) and slow. I can always connect through VPN, but mapping is problematic. I would be grateful for the answer on how to accomplish this as well as some guidance on whether I am on the right track. Thanks in advance!

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• Elan Smart Pad - empty settings window

  - by Quarien

  I am using my Asus UL30JT with Windows 8. I installed Elan Smart-pad driver 11.14.1.3. It basically works just fine, I have all the gestures and stuff. However, to adjust the settings I have to launch regedit.exe, because the window appears to be broken. Under Mouse - Elan Tab - Options I see this: Do you know how to fix that? Also, if you have a similar program, can you at least send me screens of what I can change? As I said, I am editing registry right now and I need some guidance what I can actually do :)

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• ftp connects but files aren't visible browsing

  - by YsoL8

  Hello If this should be on that other site, please don't shoot me, as I can't remember the name or the url. I have an ftp account in Dreamweaver that connects to the remote site and appears to be uploading files as normal. But when I browse to the location I can't see any new files or changes to the index page. (I've uploaded index.php and connect.php). I'm getting a 404 page. I suspect the host directory is wrong, but looking at the file tree, I can't see the folder I'm supposed to be using, so I'm uploading to the apparent site root. Any guidance on this?

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• WSUS moved how to reset the database and check the folders?

  - by Matthew Zielonka.co.uk

  I have a bit of a problem with a WSUS box, I backed up the WsusContent folder (about 180 gig) to a second machine, wiped the first machine then realized I don't have the database folder! I can not find any articles / guidance on this, I have re installed WSUS however it does not find the other files which where previsously downloaded (I guess the database being the reason). If I do a reset it will force it to download the ones it has again I guess and does not check what is still to be downloaded? Sigh... love / hate WSUS at the moment with a passion :) Thanks for any help.

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• Empty AAAA DNS Record with long TTL?

  - by Joel K

  I pay for a DNS service based on queries per second. We are not using IPv6, but a large number of queries (that I pay for) are coming in for AAAA records. I understand that most DNS stacks will now ask for A and AAAAs at the same time, and that I can't change that. What I /would/ like to do is put something in the AAAA records with a long TTL. (decreasing my hit rate) Is there anything I can put? Null? The equivalent IPv4 Address? Any guidance would be appreciated.

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• Why does IIS refuse to serve ASP.NET content?

  - by Michael Haren

  My Windows Server 2003 Std server refuses to server ASP.NET content. It serves regular html just fine but anything .net, even a one line html file with an ASPX extention fails silently. Things I've tried: Nothing in the event log or IIS WWW logs when it fails. Fiddler shows no response I reinstalled .NET with C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727aspnet_regiis.exe -U C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727aspnet_regiis.exe -I I give obscenely high permissions on everything I can think of (full control, read, write, etc.) to all possibly relevant users (IUSER*, ASP.NET, etc.). I confirmed that ASP.Net v1 and v2 Web Service Extensions are "allowed" in IIS Confirmed that the Server Manager had IIS and ASP.Net roles enabled Again: this is the scenario: http://localhost/Test/Default.htm <-- Works great! http://localhost/Test/Default.aspx <-- Bombs silently with no message at all Any guidance will be much appreciated! Solution: I reinstalled per the instructions below and it works now. Thanks all!

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• glassfish v3 and java EE in production mode: what are the options to update a live web app?

  - by shadesco

  I am building a web app using java EE and glassfish v3. I want to move it to production mode soon, however i have zero experience with using glassfish in production, i would appreciate if you give me some guidance about how to approach the following scenario: say i have deployed the web app using admin console pointing to the .war file. But what if i want to update this live application, do i need to : a) undeploy -- build new war file (with updates) -- paste the war file to the app folder --redeploy? b) move in only the changed files , ie : .class files , jsp, etc... without undeploying before?

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• Passenger/Rails not releasing memory

  - by michaeldelorenzo

  I have an Ubuntu server running three separate Rails (2.3.8) applications with Passenger, REE and Apache. Recently we started experiencing problems with ruby processes eating up memory and consuming entire cores on our server. Here's what we're getting... %CPU PID USER COMMAND 99.9 1717 nobody Rails: /var/www/api 99.6 5542 nobody Rails: /var/www/api 97.3 1223 nobody Rails: /var/www/api 4.7 5537 nobody Passenger ApplicationSpawner: /var/www/api 10.5 1801 nobody Rails: /var/www/api We've also seen instances where there have been over 100 instances of Apache running. These applications have been running for a few months without an of these issues, but in the last day or so we've been noticing this. The site referenced here is a Rails application that is a RESTful API so it serves many requests every minute. Any guidance on what we should be checking or looking out for would be appreciated.

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• RemoteApps and Cached Credentials

  - by user66774

  I'm looking for a guidance on an issue we're having. We are hosting an application over terminal services through RDWeb on Windows 2008 Server. To give users the ability to change their password we've exposed the iisadmpwd to allow the users to change their passwords. When the users change their password, they are prompted to log into broker server, even if they log off of the RDWeb page and log back in. What we've found is that the credentials seem to be cached in memory after logging in. Ending task on TSWBPRXY.EXE, WKSPRT.EXE, closing IE and logging back into the RDWEb page, then launching the application allows the user to log into the application without additional credentials. I'm wondering if there is a better way to either have the user change their password from a web interface, but allow them to reestablish their connection from the RDWeb login page rather than through the RDP login prompt that comes up.

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• How to re-arrange Excel database from 1 long row, into 3 short rows and automatically repeat the process?

  - by user326884

  I would appreciate help on the above-mentioned topic. I am unfamiliar with Visual Basic for Excel, so will need step-by-step guidance (if solution is via Visual Basic). For example :- Row 1, Sheet A: A1 B1 C1 D1 E1 F1 G1 H1 I1 To be re-arranged into Sheet B : Row 1 : A1, B1, C1 Row 2 : D1, E1, F1 Row 3 : G1, H1, I1 The Sheet A (database sheet) has a lot of rows (example 3,000 rows), hence the Sheet B is estimated to have 9,000 rows (i.e. 3 x 3,000). Thanking you in anticipation of your speedy response.

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• Is it possible to put only the boot partition on a usb stick?

  - by Steve V.

  I've been looking at system encryption with ArchLinux and i think I have it pretty much figured out but I have a question about the /boot partition. Once the system is booted up is it possible to unmount the /boot partition and allow the system to continue to run? My thought was to install /boot to a USB stick since it can't be left encrypted and then boot from the USB stick which would boot up the encrypted hard disk. Then I can take the USB key out and just use the system as normal. The reason I want to do this is because if an attacker was able to get physical access to the machine they could modify the /boot partition with a keystroke logger and steal the key and if they already had a copy of the encrypted data they could just sit back and wait for the key. I guess I could come up with a system of verifying that the boot has been untouched at each startup. Has this been done before? Any guidance for implementing it on my own?

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• Backup Mongodb on EC2 through EBS snapshots - timing issue

  - by DmitrySemenov

  I'm following this guidance http://docs.mongodb.org/ecosystem/tutorial/backup-and-restore-mongodb-on-amazon-ec2/ I have 4 EBS 1000 IOPS volumes assigned to instance These 4 volumes through MDADM assembled into software RAID10 array. I want to do backups through EBS Snapshots as explained in the article above Question: Mongodb says - that I need to mongo shelldb.runCommand({fsync:1,lock:1}); -- this will lock the db for writing ....run snapshot creation... mongo shell db.$cmd.sys.unlock.findOne(); -- this will unlock the db for writing so do I need to unlock the DB for writing after I issued the comand ec2-create-snapshot or after it's finished and the actual snapshot is created thanks, Dmitry

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• Pop current directory until specific file is found

  - by edarroyo

  I'm interested in writing a script with the following behavior: See if a file, build.xml, exists in the current directory, if so run a command supplied through arguments to the script. If not, pop the current directory and look at the parent. Go to 1. The script would end once we find the file or we reach the root. Also, once the script finishes and control comes back to the user I want the current directory to be that one where the script was initially l I'm not very familiar with shell scripting but any help/guidance will be much appreciated.

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• Amazon AWS EC2 instance pricing

  - by iss42

  It seems to me that Amazon obfuscate their pricing somewhat. So if I were to create a "m1.medium" instance and run it say 4 hours a day what would I be charged per month? (assume nothing else needed) You'd think this would be straight forward to answer, but I don't see a clear answer anywhere. This tool: http://calculator.s3.amazonaws.com/calc5.html Gives: $22.21 If I set it to 1 hour is gives: $5.65 But is this correct? The m1.medium has a Local storage of 410gb... I assume that this is persistent, but is it charged for? In the tool from Amazon this is not implied or suggested or hinted at. Any guidance would be most appreciated!

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• Cannot install Java 7 update 9 32-bit on Win 7 64

  - by J. Parrino

  As there were several versons of Java on my laptop, I decided to uninstall them all and reinstall only the current version. I uninstalled all 64-bit and 32-bit versions using Revo Uninstaller. After dowloading the current versions, when attempting to install them, I get a message that both the 64-bit and 32-bit versions cannot be installed as they are already installed. Both the Windows 7 Programs and Features and Revo show no Java installed at al. I then tried the Microsoft Fixit for install and uninstall issues (KB 2438651). I was then able to install the 64-bit version, but continued to have the issue with the 32-bit version. I ran CCleaner, Glary Utilities and Auslogics Registry Cleaner, and noticed Java keys that were to be uninstalled. After cleaning the registry, I attemped to install the 32-bit version of Java once more, to no avail. Any suggestions on how to rectify this problem? Thank you for any guidance you can provide.

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