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• Connect to MySQL EC2 Instance outside of VPC

  - by Brian W

  I have a VPC setup with a few EC2 instances inside. I'm attempting to connect to a MySQL database on an EC2 instance outside the VPC, with no luck. I have the security groups on the VPC EC2 instances set to outbound 0.0.0.0/0 which I assumed would let it connect to any outbound connection. I also followed a tutorial on creating a NAT, but wasn't exactly sure how to use it to connect to an external database. In any case, if anyone has experience and knows the proper way to connect to a database outside the VPC, it would be greatly appreciated!

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• How to use windows desktop from a linux machine in a local network?

  - by Hristo Hristov

  I have a computer running Windows 7 with no monitor or keyboard, connected to a local network. I have a few laptops running linux, also connected to the local network. I want to feel like I'm sitting in front of the windows, but using one of the linux laptops. How to do that? Maybe I can use some linux software to connect to remote desktop? Or I have to install client/server software on both machines? As this is a local network, I expect excellent experience with no lag. Thank you!

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• How to increase Remote Desktop resolution?

  - by BugAlert

  I'm using Windows 7 on a PC and connect to it via Remote Desktop Connection for Mac by MS, using a Mac. On the Mac, I have a 27" Display with 2560 x 1440 px resolution. The PC has a high performance graphics card (one of those that needs an additional power supply). Both machines are connected via network cable to a router. So network should be insanely fast. However, the max resolution I can get is 1400 x 1050. The PC just has a old and bad 21" monitor connected to it. How can I increase the resolution to 2560 x 1440 to work fullscreen with the Apple LED Cinema Display via Remote Desktop? Maybe I shouldn't even ask, because I already experience some lag at the low resolution of 1400 x 1050. But I guess this can be resolved as well?

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• How to tunnel port 25565 through SSH?

  - by user62389

  I want to play a game which is hosted on port 25565 (minecraft!), but my university firewall does not allow this port. I have a dedicated server running linux not too far from uni, so I think there's a way to tunnel through it (but I've never done this before and have no knowledge/experience of tunnelling) It would probably be slow, but it's better than not being able to play at all. Is it possible to do using only SSH, or do I need other client/server software? My server has OpenSSH installed. Also, the computer I'm using to play the game is running Ubuntu. I've tried searching but there seem to be so many different solutions to different types of problem =/

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• Recommended service account setup for MS SQL Server 2005/2008

  - by boxerbucks

  We have a number of MS SQL servers in our environment running either SQL Server 2005 standard/enterprise or SQL server 2008 enterprise. Currently the SQL services are running as local service or network service and the MS recommended best practice is to run as a domain account which is what we are trying to move towards. Is the best practice with regards to domain accounts to have a separate domain account per service per server? So if we have 4 SQL services we want to run per server and we have 50 servers, we would create 50 * 4 = 200 accounts in AD? This seems excessive to me and I was wondering if anyone has any real experience with this type of setup and it's management.

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• memcached install issues with lib event on server

  - by albert N

  I've installed libevent on my server in the directory root/data/ and have i'm about to install memcached with ./configure –with-lib-event=/data/; make; make install However, after running a bit I get this error saying i'm pointing to the wrong directory for libevent. checking for libevent directory... configure: error: libevent is required. You can get it from http://www.monkey.org/~provos/libevent/ If it's already installed, specify its path using --with-libevent=/dir/ make: *** No targets specified and no makefile found. Stop. make: *** No rule to make target `install'. Stop. Any suggestions. I am not experience with cli so anything is help. Thanks!

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• What happens if an OpenStack cloud controller dies?

  - by magu

  I've been reading up on OpenStack and how we can re-create an EC2/S3-style cloud for our internal development and I'm having a hard time finding information on how the OpenStack cloud controller provides redundancy of the cloud management services. I know I can setup multiple Swift and Nova nodes, but not a single document/article/howto/wiki contains information on: a) what happens if the cloud controller node dies; and b) how to setup redundant cloud controllers. It seems to me that, although it is massively scalable, there is a big single-point-of-failure built into OpenStack. Can anyone with more experience on OpenStack please shed some light as to how it all works in regards to high-availability?

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• DHCPOFFER delay VLAN

  - by john883

  I have configured two VLANs [ 15 and 16 ] and a trunkport on a Cisco Catalyst 2960. The trunkport is connected to eth2 on a Linux server The server is configured to support VLAN's and the interfaces eth2.15 eth2.16 is configured with ip addresses on two different subnet. dhcp3-server is running on the same server and hands out IP-addresses to the VLANs. When connecting a client to a port that is configured in ex. VLAN 15 and requesting a IP-address, i experience a long delay before recieving a DHCPOFFER, around 30 seconds or so, the client needs to send a DHCPDISCOVER about five times but will always recieve a DHCPOFFER. Any suggestion why this delay is happening?

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• Oracle 10g to SQL server 2008/ migration

  - by vs1984

  We have a reasonably heavy Oracle 10G database (~ 120 GB space occupied). The database consists of tables, packages, materialized views, procedures etc. We are planning to decommission Oracle and migrate to SQL server 2008. Can you provide your experience on this similar exercise? What is the best approach to undertake this exercise? Are there any tools available with Microsoft to implement this? Once SQL server is commissioned, is it possible to connect SQL server to Oracle server in downstream applications?

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• SSL certs or intermediate for DMZ

  - by rex

  I've been tasked with deploying and managing load balancers covering internal servers and DMZ servers. I have no experience with this, and this is a first for my organization as well. Balancers are up, running, legit. Currently we are using a self-signed cert for Exchange/OWA. I know that we should have a cert signed by a CA, but the balancer has options for SSL cert or intermediate cert, and I'm unclear on the difference, or on which we need. We will be hosting Lync, Exchange and some custom apps in the DMZ. disclaimer: Apologies up front, I'm desktop support. I recently passed my Net+. It seems that has made me the network engineer in this organization.

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• 1tera flop cluster?

  - by Adobe

  I want to buy a $40000 1 tera flop cluster to keep it in a room. What are the standard configurations? Cluster is supposed to do molecular dynamics simulations on biological systems. I'm proposed a 4 pc with 8 cores each by the selling company I'm deadling with. It looks like I also need infiniband. Does some one has an experience -- what phisical memory should I buy etc? I know things change very quickly... Still there might be a point or two to state. Edit: OS is supposed to be linux, application is gromacs.

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• How do I make an Illustrator file "higher resolution"?

  - by drewjoh

  I was given an illustrator file, but all the curves on the artwork are jagged. I've tried "rasterizing" and exporting by increasing the size of the image. I don't know what else to do or what I'm doing wrong. My understanding is the beauty of Illustrator is that it's all done mathematically, so I can scale it up to infinity and it will be perfect (more or less). And that lines are drawn that way also, so they should be (or can be) infinitely smooth if they want to be. Here's what I have right now: Here's what I have with the image selected showing the plot lines: And a zoomed in view: *I'm not experienced in Illustrator at all; I only know whatever I can carry over from moderate Photoshop experience.

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• Where should I go to learn about networking? [closed]

  - by Ollie Saunders

  I wonder if anyone could recommend resource or resources such as a good book that: explains how all the important protocols work and interact. I’m interested in those that are relevant in a typical home network and used over the Internet explains in detail how ADSL Internet connections work to the level of depth necessary so that I’m able to tweak and measure performance settings starts from the beginning but attempts to provide proper understanding rather than idiot-oriented steps to follow Basically, I’m interested in how these technologies work and tend to be implemented in hardware and software rather than “here’s what to do if…” I’m interested in Computer Networking by Andrew S. Tanenbaum and I wonder if anyone else has any experience with that title. It’s expensive but I could probably loan a copy for £3 from the library or so.

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• what does it mean for MalwareBytes to find malicious registry keys but nothing else?

  - by EndangeringSpecies

  I have a machine that is obviously infected, and when I ran MalwareBytes it told me that it found some "malicious" registry keys (surprisingly enough these contained file path to currently non-existent javascript files). But, that's it. Full scan did not uncover any malicious files, or malicious hidden processes in memory. Like, maybe the (hidden?) process that for whatever reason periodically injects keystrokes (hotkeys?) into whatever currently open window. Then on another, not obviously infected, machine it found a "malware.trace" registry key but again no files or processes etc. How does this jive with people's experience with MalwareBytes? Does it usually find registry key symptoms of an infection but nothing else? Or is it a common thing to have no infection but some malicious registry keys in place anyway?

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• Setting up Debian squirrelmail

  - by Muazam

  I'm new to networking. I need to set up a email server and I also need to create an email address. ex. [email protected] I've installed squirrelmail and dovecot. http://www.mydomain.com/squirrelmail/src/login.php Shows a log in screen, but when I try to log in I get this error: Error connecting to IMAP server: 127.0.0.1. 111 : Connection refused I have no experience with squirrelmail and dovecote. Anyone can help me out, I really appreciate it. Thanks!

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• txt file descriptor in lsof

  - by wfaulk

  In my experience, files that have the file descriptor of txt in lsof output are the executable file itself and shared objects. The lsof man page says that it means "program text (code and data)". While debugging a problem, I found a large number of data files (specifically, ElasticSearch database index files) that lsof reported as txt. These are definitely not executable files. The process was ElasticSearch itself, which is a java process, if that helps point someone in the right direction. I want to understand how this process is opening and using these files that gets it to be reported in this way. I'm trying to understand some memory utilization, and I suspect that these open files are related to some metrics I'm seeing in some way. The system is Solaris 10 x86.

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• HP ML150 G6 upgrading RAM/CPU beyond specs?

  - by Morten Green Hermansen

  I am being told that some limits on some HP servers can be crossed. Do any of you have any experience with that? A ML150/G6 is limited to 48GB RAM but I have been talking to a German company that guaranties me that this server will be able to be upgraded to 384GB RAM (using 32GB memory modules and 2 CPUs) http://www.compuram.de/en/memory,HP+%28-Compaq%29,Server,Proliant,ML150+G6.htm Can this really be true? The server that I have is using E5504 CPUs but will I be able to upgrade to any CPU that is using a LGA1366 socket? All from a low wattage L5640 all the way to the 6 core, high wattage versions like an X5650? (If cooling and power is adequate ofcause). Is there any limitation with powerregulators and chipset (Intel 5500). I am looking forward to any reply. Thanks in advance and best regards, - Morten Green Hermansen, Fanitas

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• Host a subdomain from an IIS7 server on another server

  - by brennanmur

  I am running a network with two server, one running SBS 2008 which hosts a majority of the network services (DNS, DHCP, Exchange, IIS, DC, AD...), including the primary webpage at mydomain.com. The other server is a linux box running an apache web server. I'm trying to set the apache server to host the site site2.mydomain.com. I have changed the DNS settings on the first server so that site2.mydomain.com can be accessed from the internal network, but I cannot access site2.mydomain.com from the internet. I have tried using server farms and application request routing cache, as described on this page, http://forums.iis.net/t/1156458.aspx, but I still can't access site2.mydomain.com from the internet. I don't have much experience with web servers, I usually just administer local networks, so I'm not sure if I'm going about this the right way. Any help or suggestions would be much appreciated.

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• Why you have create a full site - if the answer for everything is the one and the same ?

  - by Aristos

  regarding this question http://superuser.com/questions/131176/a-hidden-program-virus-send-hundred-e-mail-can-you-have-any-experience-on-som I am wondering, if everything is the same, why you have fix a so complicate site ? One simple answer can solve all ! (for you) Hope full I found answers elsewhere on internet, and this general answer did not help me almost at all. The problem there is a serious thread, special that the general answer did not give the solution - and I see and the full video on it. Please answer to this question !

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• Is defragging right for me?

  - by blade

  Hi, I am using Hyper-V on my Windows Server 2008 R2 DC x64 machine. I am also using standard SATA drives. I read some threads on here about defraging but could not reach a conclusion about whether or not I should use defragging. Can anyone shed some light on whether this will be right for me? Furthermore, what tool is best? There seems to be 3: http://www.perfectdisk.com/products/business-perfectdisk11-server/key-features http://www.diskeeper.com/diskeeper/home/server-edition.aspx?id=40279&wid=7 http://www.perfectdisk.com/products/business-perfectdisk11-hyper-v/learn-more Anyone have experience with this?

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• SQL Server 2008R2 Express: which is the users limit in a real case scenario?

  - by PressPlayOnTape

  I know that sql server express has not a user limit, and every application has a different way to load/stress the server. But let's take "a typical accounting software", where users input some record, retrieve some data and from time to time they make some custom big queries. May someone share its own experience and tell me which is the limit of users that can realistically use a sql server express instance in this scenario? I am looking for an indicative idea, like (as an example): "I had a company with an average of 40 users logged in and the application was working ok on sql server express, but when the users become 60 the application started to seem non repsonsive" (please note this sentence is pure imagination, I just wrote it as an example).

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• Video on demand streaming solution

  - by Rafal Saltarski

  we are looking into building a commercial vod service and I'm doing research on the subject. We need the video to be protected with DRM so users cant rip/copy (i realise its mostly useless but the lawyers demand it from us) and the server solution to be scalable and able to distrubute content in hd to a high number of clients. Besides, we would need to be able to develop a player integrated with the payment system, so users that havent bought access would for example only see the first 30 seconds of video and then have the playback interrupted, or only be able to watch video for 72h after payment. Also it would be nice if we could distribute video to mobile platforms like android/wp8/ios but thats not a priority at the moment. I have zero experience on that topic so I would greatly appreciate any feedback or giving me stuff to read about like protocols or key phrases i should know. Thanks

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• Merging and re-formatting paragraphs in Microsoft Word 2007

  - by thkala

  After a copy/paste mishap in Microsoft Word 2007, I ended up with text looking like this: This line breaks up here continues here, and so on here, when it should all be in a single line without all the random whitespace. I confirmed that there are paragraph separators and extra whitespace between each line - probably due to hard-coded newlines in the original source. Is there a (preferrably easy) way to merge paragraphs in Microsoft Word? Is there a way to re-format a paragraph so that extraneous whitespace is removed? I can change the flush style, but the whitespace remains. I (obviously?) do not have any experience with Word, being more of a TeX person, but I have been searching Google and crawling the menus for a few hours and I have yet to find a solution...

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• How do I create DNS entries for EC2 instances created by Auto Scaling?

  - by Evan

  I'm looking into using auto scaling groups for a tier of webservers that would be fronted by an ELB. One of the things I'm having a hard time with is how to give each new instance the proper DNS name. For example, I'd like webservers to have names like frontend-web-XXX.prod.example.com so their names would appear correct in logs and just ease of organization. I have two other tiers I'd ultimately like to make autoscaled and I'd like them to have names like api-web-XXX.prod.example.com as well. I have some experience with cloudformation templates and have spun up individual instances with associated Route53 records but I don't see any indication of how this can be done within an autoscaled group.

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• Unable to map to web folder using WebDAV client on Windows Server 2008 R2

  - by user74989

  Hello, I have a client running Windows Server 2008 R2 on several servers. One of the servers is also running SharePoint 3.0 and my client has created a web folder to map to. I can map to the web folder from all Server 2008 R2 boxes that have the WebDAV client (part of Desktop Experience feature) installed, except for the server the folder resides on. When I attempt to map to the web folder on the server which the folder resides, I am repeatedly prompted to enter my credentials. I am using the same account that I used to map the web folder on the other servers. I have also tried mapping from the command line and receive 'Access Denied' What may be causing the problem? I would think that if I can map to the drive from one server, I should be able to map the drive from the rest as long as the WebDAV client is installed, especially on the server where the folder is located. Jesse

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