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  • pfSense + DDoS Protection

    - by Jeremy
    I run a gaming community on a colo with a 100Mbps port. I want to buy a very cheap 35 dollar server with the same 100Mbps port, and run pfSense to use as a hardware firewall. I'm dealing with a bunch of 14 year old kids that have access to botnets, so it can become a bit necessary to get something like this. My overall question, is using pfSense on a cheap identical datacenter/port speed server worth it to actually block DDoS attacks? A bit more into detail since I assume you will ask this, the attacks we receive are normally around 1Gbps. We currently run CentOS using CSF Firewall, and even when using a software firewall, we block 500Mbps UDP floods, or just generic attacks pretty easily. Thanks, - Necro

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  • How to know the root device size of some public AMI?

    - by red23jordan
    Since I do not want to pay money for my testing, the free limit size is 10G. I can know the root device root for some default AMI such as Amazon Linux AMI 2012.03 The Amazon Linux AMI 2012.03 is an EBS-backed, PV-GRUB image. It includes Linux 3.2, AWS tools, and repository access to multiple versions of MySQL, PostgreSQL, Python, Ruby, and Tomcat. Root Device Size: 8 GB And the last row displayed 8GB. However, if I find AMI in Community Page, it does not show the root device size. Can anyone know how to use the instance such as centOS that is not provided by default but it is under 10GB so that I can still free use?

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  • How to install Apache 2.4.3 on Ubuntu 12.04

    - by SFox
    I have a clean, fresh OS of Ubuntu 12.04 on my VPS. My goal is to install WordPress. I want to install the latest version of Apache (2.4.3) but I'm encountering two problems. I'm following instructions like this & this. Both produced the same errors. The first I encounter after running "./configure --prefix=/usr/local/apache2 --with-included-apr --with-included-apr-util " the system says "It must specify an install prefix, a build directory, or an apr-config file" The second I encounter immediately afterwards, when I attempt to run make or make install. "No targets specified and no makefile found. stop." I honestly have not been able to find a solution for either, and I'm now looking for some help from the community. Any help would be greatly appreciated.

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  • Proper use of disk to disk to tape backup using de-duplication and LTO5

    - by Michael
    I currently have ~12TB of data for a full disk to tape (LTO3) backup. Needless to say, it's now requiring over 16 tapes so I'm looking at other solutions. Here is what I've come up with. I'd like to hear the community's thoughts. Server for Disk-to-Disk BackupExec 2010 Using De-duplication Technology 20+TB worth of SATA drives LTO5 robotic library connected via SAS 1Gbps NIC connected to network What I envision is doing a full backup of my entire network which will initially take a long time over the 1Gbps NIC but once the de-duplication kicks in backups should be quick. I will then use the LTO5 to make disk to tape backups and archive those accordingly. What does everyone think? Any faster way of doing the initial full backup over the 1Gbps NIC? What will be my pain points? Is there a better way of doing what I'm trying to achieve?

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  • Good fractal visualizer

    - by Gnoupi
    Each time it's the same thing, I find one, then I forget the name of it the next time I want to "dive" into such things. I'm looking for a good fractal "visualizer". The kind in which you just select a well-known fractal model (or variations on it), and in which you can then "dive" into, just zooming in or out smoothly, for the cheer pleasure of losing yourself in it. I'm looking for an executable, preferably for Windows, but any OS accepted. Keep to one program per answer (and one answer per program), as this is community wiki.

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  • CentOS and Snapshots

    - by Jonathan Sampson
    I'm planning on purchasing a virtual-dedicated server today and would like to pass a quick question by the community here before I do. I'm likely going to be getting CentOS, as that seems to be a pretty stable, and popular distro from what I can tell. One of the companies I contacted (MediaTemple) mentioned they provide snapshots just incase I start doing something that could potentially cripple my server - I could always restore the last snapshot. Another company (GoDaddy) said they would provide routine snapshots once a day, week, or month and back it up to a remote FTP for me to download. My question is this, is the "snapshot" capability provided in the OS itself? I'm not super-confident in my abilities yet to manage a server, so this functionality would be very attractive. Or, do I need to pick a host that provides this as an extra addon to the already rendered services?

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  • Name Servers changed over 48 hrs ago and site is still down

    - by Solomon Closson
    Ok, I just recently changed Name Servers for my site (Oct. 29th): http://dream-portal.net but there is an issue, the name servers were changed from godaddy, however, the DNS is being hosted elsewhere. Godaddy states that the DNS is resolving the site to www.dream-portal.net and that is making it inaccessible from the DNS on the other host and that they can't do anything because I'm not hosting DNS with godaddy. I've contacted the other host and they say that everything is fine, however, people are not able to access the site and I can't access it from my work computer. I can only access it from my home computer. From my work computer it says that the page can not be found. What should I do? What can I do? Other people reported problems with the site here: http://www.simplemachines.org/community/index.php?topic=487592.msg3629960#msg3629960

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  • How to Diagnose a Pre-Operating System Load or Hardware Issue

    - by soandos
    How can I find out if my problem is hardware based? If it is, how can I figure out what component is to blame How can I fix other pre-operating system issues? As an aside, what are all of these components responsible for, and if they break, what can go wrong? (This question comes up frequently, and the suggested solutions are usually the same. This community wiki is an attempt to serve as the definitive, most comprehensive answer possible. Feel free to add your contributions via edits.)

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  • Verizon HTC Eris - No sound on incoming phone call after 2.1 droid upgrade. Help!?

    - by Michael Rosario
    Has anyone had the following issue? I've had several issues as well: No sound when call connects, ringing or people talking. Apps would force close like weather. I did call HTC support and they had me go into Menu, Settings, Manage Applications and then clear the cache of the problem app. They also had me clear the cache once the browser was open and then do a soft reset (power off the phone and take the battery out for 15 seconds) This did fix some issues, but I am constantly turning my phone on and off to get sound back on call or to make the assigned ringtones work. There's no rhyme or reason as to why they stop working... Anyone else tried anything different??? Related problem statement... http://community.htc.com/na/htc-forums/android/f/32/p/2601/10344.aspx#10344 My wife and I are most concerned about the incoming call issue.

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  • Snow Leopard: MySQL doesn't start

    - by brainfck
    Hi, I have updated to Snow Leopard and I removed mysql by following this post: http://forums.mysql.com/read.php?11,75256,255853#msg-255853 After that I have installed the mysql 64 bit community edition, but using the prefpane MySQL doesn't start. Using the terminal gives us some more informations, but I don't know how to interpret them: stefansmac:~ stefan$ cd /usr/local/mysql-5.1.42-osx10.5-x86_64/bin/ stefansmac:bin stefan$ sudo ./mysqld_safe 100105 13:56:35 mysqld_safe Logging to '/usr/local/mysql-5.0.51b-osx10.5-x86//stefansmac.local.err'. 100105 13:56:35 mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql-5.0.51b-osx10.5-x86/ 100105 13:56:35 mysqld_safe mysqld from pid file /usr/local/mysql-5.0.51b-osx10.5-x86//stefansmac.local.pid ended Best regards

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  • How do I send email in plain text rather than HTML in my email client?

    - by JS Bangs
    For various reasons, I often have to help friends and family to send email in plain text rather than HTML. However, many of them use email clients that I'm not familiar with, forcing me to search the internet, read help files, or click randomly through dialogs looking for the setting. I've often wished there was a single page that included instructions for changing this setting for every popular email client. So let's make one. Write instructions for changing email settings from plain text to HTML in your preferred email client below. If someone else has already done so, please upvote their description so that the most used email clients rise to the top. (For obvious reasons, there won't be an "accepted answer" for this question. I'll set this question to community wiki after a few days.)

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  • vCenter Server: This host currently has no management network redundancy

    - by goober
    Background I'm on a new VMWare install consisting of: 1 vCenter Server (containing inventory service, SSO, vCenter server, and web client server) 2 ESX Servers configured in a HA group Problem When a I view the summary for any one of my servers, I receive a notice: "" This is expected in our scenario and we're okay with it. Attempted Solutions As I understand from this article and this discussion, the proper way to remove the error message is to ignore it via setting the "das.ignoreRedundantNetWarning" propery to "true". I took the following steps: Logged into vCenter Right-clicked on my HA cluster and chose "Edit Settings..." Clicked "vSphere HA" section Clicked "Advanced Options..." Added the "das.ignoreRedundantNetWarning" option with a value of "true". Question How do I get this error to go away, and are there any reasons why adding this option may not have worked? References Network redundancy message when configuring VMware High Availability in vCenter Server [VMWare KnowledgeBase] How remove a notice " has no management network redundant" [VMWare Community]

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  • Social-Networking Startup, Hosting Plan

    - by pws5068
    I've created a social networking community which is soon ready to release, and I'm trying to decide on a type of hosting plan. I have considered options such as VPS and Reseller plans. I anticipate (or hope for at least) a significant amount of traffic/bandwidth in the not-too-distant future. If I open a reseller, will I receive the same amount of server lag during busy hours that I do with a shared account? How significant is the profit margin with the reseller option? Aside from generalized "configurability", what advantages merit purchasing a VPS? Is there anything stopping me from reselling space on a VPS account? Features I need Include: PHP, MySql, Unlimited Domains, Ruby on Rails, Remote Database Connections

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  • grub error: symbol 'grub_puts_' not found

    - by ladaghini
    I updated from Ubuntu 9.10 to 10.04, and after installation, the computer restarted. When grub loaded, all I get is a screen that says error: symbol 'grub_puts' not found and a useless grub prompt that looks like grub_rescue I've tried reinstalling grub from the livecd (usb drive) following this guide: https://help.ubuntu.com/community/RecoveringUbuntuAfterInstallingWindows to no avail. Sometimes, when I start up from the live usb, linux doesn't recognize the harddrive at all. It's not in the places menu, nor does fdisk list anything. If anyone can help fix up grub so it recognizes and boots up the two os's I have installed, I'd appreciate it. Also, I know little about grub, so try and make it easy to understand.

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  • What is the current state of development for the FLAC codec?

    - by TwentyMiles
    I have a pretty large collection of FLAC files created from my CD collection. I love the FLAC format and the sound quality that you can get from it. Lately, however, I've been trying to write a few tools to manipulate the files and I've been noticing what seems to be a stagnation of the community around the codec. Some of the links on the official FLAC page point to thing that are no longer relevant (7digital, for example, appears to no longer sell FLAC encoded songs). It's pretty hard to find hardware players that support FLAC any more (most noticeably it's not present on lower end players when it used to be, and playback is absent on Android). Programming language tools (Java and .NET libraries) are at best old, and at worst unfinished. What's the current state of FLAC development? Has it been replaced by another codec?

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  • Server room kit?

    - by Bill Weiss
    I feel like this is a question I've seen on here before, but some searching didn't do me any good. This looks similar, but I'm looking for stuff I leave there, not what's in my go-bag. What would you say is indispensable equipment in your server room? I've inherited one that's a bit light on stuff (except for servers, those are in there). We're in the single digits of racks, if that matters. I'm thinking of things like: Cable labeler Ethernet tester (copper at least, fibre if you need) ... ? Community wiki, because, really. [Edit] I suppose it's important to say that it's a colo facility, kind of far from the office. No food, water, etc. :(

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  • How do I evaluate my skillset against the current market to see what needs improvement and where my

    - by baijajusav
    First of all, this question may be out of bounds for this site. If so, remove it. I say this because this site seems to be a place for more concrete questions that are not so relative in nature. And before I begin, for those of you whom just prefer a question and not this sort of dialog, here is my question: How can I assess my current skills as a programmer and decide where and what areas to improve upon? That said, here's what I'm asking/talking about, in essence. The market is always in constant flux. As programmers we're always having to learn new things, update our skills, push ourselves into that next project. There's not a very good litmus test that I know of for us to get an idea of where we stand as programmers. I came across this blog post by Jeff Atwood talking about why can't programmers code. Instinctively (and as the post goes on to state) I rushed through the program in about 4 minutes (most of that time was b/c I was hand writing it out. Still, this doesn't really answer the question of where do my skills need to be to succeed in today's world. I real blogs, listen to podcasts, try to keep up on the latest things coming out. It has only been in the past couple of months that I made a decision to pick a focus area for my learning as I can't learn everything and trying to do so is to spread myself too thin. I chose ASP.NET MVC & C#. I plan to stick with Microsoft technologies, not out of some sense of loyalty or stubbornness, but rather because they seem to stream together and have a unifying connection between them. With Windows Phone 7 coming out, it seems that now is the obvious time to pick up WPF and Silverlight as well. Still, if you asked me to code something apart from intellisense and the internet, I probably couldn't get the syntax right. I don't have libraries memorized or know precisely where the classes I use exist within the .Net framework, namely because I haven't had to pull that knowledge out of the air. In a way, I suppose Visual Studio has insulated me, which isn't a good thing, but, at the same time, I've still been able to be productive. I'm working on my own side project to try and help my learning. In doing so, I'm trying to make use of best practices and 3rd party frameworks where I can. I'm using automapper and EF 1.0. I know everyone in the .net community seems to cry foul at the sound of EF 1.0, but I can't say why because I've never used it. There's no lazy loading and that has proven rather annoying; however, aside from that, I haven't had that much of an issue. Granted this is probably because I'm not writing tests as I go (which I'm not doing because I don't know how to test EF in tests and don't really have a clue how to write tests for ASP.NET MVC 1.0). I'm also using a custom membership provider; granted, it's a barebone implementation, but I'm using it still. My thinking in all of this is, while I am neglecting a great many important technologies that are in the mainstream, I'll have a working project in the end. I can come back and add those things after I finish. Doing it all now and at once seems like too much. I know how I work and I don't think I'd ever get it done that way. I've elected to make this a community wiki as I think this question might fight better there. If a moderator disagrees with that choice or the decision to post this here, the just delete the question. I'm not trying to make undue work for anyone. I'm just a programmer trying to assess my where his skills are now and where I should be improving.

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  • Why does outlook 2013, after initial setup, always fail to connect to an Exchange server/always ask for a password?

    - by jhstuckey
    After installing Outlook 2013 configuring it to connect to an exchange server (details about which, e.g., version, etc., I do not know how to provide) was stressful and the user used outlook without issue for a session. The next time outlook is started this error (Re. subject) occurs. The answer to this question solves the issue, or explains why it is happening (i.e., no one could provide a solution). Full size image: http://i.imgur.com/H2bVlyJ.png EDIT 5/18: To add more detail, a) after outlook 2013 was installed and configured (through the menu it prompts you with, add an account) it connected and was fine. It is only after outlook is closed and re-opened that it will not connect again to the server. This problem has been mentioned elsewhere, e.g., http://community.office365.com/en-us/forums/158/t/62832.aspx.

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  • Does removing admin rights really mitigate 90% of Critical Windows 7 vulnerabilities found to date?

    - by Jordan Weinstein
    Beyondtrust.com published a report, somewhat recently, claiming among other quite compelling things, "90% of Critical Microsoft Windows 7 Vulnerabilities are Mitigated by Eliminating Admin Rights" Other interesting 'facts' they provide say that these are also mitigated by NOT running as a local admin: 100% of Microsoft Office vulnerabilities reported in 2009 94% of Internet Explorer and 100% of IE 8 vulnerabilities reported in 2009 BUT, reading the first page or so of the report I saw this line: A vulnerability is considered mitigated by removing administrator rights if the following sentence is located in the Security Bulletin’s Mitigating Factors section, ?Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. could be sounds pretty weak to me so and I wondered how valid all this really is. I'm NOT trying to say it's not safer to run without admin rights, I think that is well known. I just wonder if these stats are something you would use as ammo in an argument, or use to sell a change like that (removing users as local admins) to business side? Thoughts? Link to the report (pdf) [should this supposed to be a community wiki?]

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  • Linux webserver tutorials (WordPress)

    - by HannesFostie
    Hi I will be setting up a linux webserver to host WordPress on. The problem is that although I know how to do it, I don't know how to properly do it. So I'm now looking for semi-advanced tutorials that are complete and secure above anything else. I don't really mind trying a new distro, but I prefer ubuntu/debian. I read this post: Any good resources for setting up a webserver in Linux ? But these are very limited. So far not a lot of luck finding good guides and howtos. This should probably be a community wiki but I can't seem to transform it myself. Thanks

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  • Driver choice for addressing ubuntu wireless card issues

    - by Holly
    Hello, this should be a relatively simple question. I'm attempting to get my windows wireless card to work with ubuntu, booted from my portable hard drive. This is the guide I'm attempting to follow is on help.ubuntu.com, /community/WifiDocs/Driver/Ndiswrapper My wireless card is a Broadcom Corporation BCM4318 AirForce One 54g 802.11g Wireless LAN Controller. My computer is an HP Pavilion Entertainment dv5 notebook, which came with Vista 64. I would like confirmation about which of the drivers I should use. At this point, I'm leaning towards Broadcom BCM4318 HP Pavilion zv6000, but I thought it best to ask advice before taking action. The drivers I have to chose from are listed on this page http://sourceforge.net/apps/mediawiki/ndiswrapper/index.php?title=Category:Broadcom Thanks! Holly

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  • Where can I learn various hacking techniques on the web?

    - by Carson Myers
    I would like to try my hand at hacking -- that is, exploiting various website vulnerabilities. Not for any illegal purpose mind you, but so I can have a better understanding and appreciation of these exploits while writing my own web software. I seem to recall that there was a community that hosted a bunch of demo websites, and you had to find and exploit certain vulnerabilities with each one. I can't remember what it is called but this is the sort of thing I am looking for -- I have read a tonne of little XSS and CSRF examples but have yet to find a real-life hands-on example of one. Does anyone know of such a place, where I can be given an example page and look for security holes? I would really rather not try this with actual websites, I don't want to break any laws.

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  • What to look for in a good cheap color laser printer?

    - by torbengb
    My old color inkjet is giving up, and I'm considering laser to replace it. There are several good questions about color laser printers, but none of them summarize the pro's and con's. So here goes: I am looking to buy a color printer for home use, mostly for photos (at least medium-quality) and also for low-volume b/w text. Duplex would be neat but not a must. One aspect per answer, please: What aspects should I consider, what should I look for, what should I avoid in a home color laser printer? I'll make this a community wiki because there won't be one single definite answer. I'll post a few ideas of my own but I'm hoping to get many useful insights.

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  • Monitors - inches vs resolution

    - by Vnuk
    I'm currently moving away from living five years only on laptop to a desktop setup. I'm currently browsing for monitors and I've noticed something strange. On my laptop I have 1920x1200 on 17". To get the same resolution on a monitor I have to get Dell U2410 24" or Samsung SM2443NW 24". I do not need (or want) 7" more inches of screen, I just want the 1920x1200 resolution. Why is this setup (big resolution on less inches of screen) available on a laptop but not on a regular monitor? I'm setting this as a community wiki beacuse I think that there is no right answer here...

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  • GMail IMAP + Apple Mail / iPhone - "Account exceeded bandwidth limits. (Failure)"

    - by bpapa
    Started seeing this this morning in Apple Mail. I have one of those exclamation point error indicators next to "Inbox", with this error message when I click on it: There may be a problem with the mail server or network. Verify the settings for account “IMAP Account” or try again. The server returned the error: Account exceeded bandwidth limits. (Failure). This is in Snow Leopard. I'm using GMail IMAP, and I am way below the size quota - I've never heard of there even being a bandwidth quota. I'm also not getting mail from the same account to the mail app on my iPhone. EDIT - a month later I'm seeing this, and I'm thinking of just switching Mobile Me. EDIT AGAIN - Making community wiki. I stopped seeing the problem once I updated Snow Leopard to the latest version, but since others continue to see it...

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