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  • Practical way to implement prevention of IP Spoofing

    - by user1369975
    I am an undergraduate Computer Science student and was hoping to gain some knowledge of ways to help prevent IP spoofing but all the resources I have tried out elaborate this concept in a theoretical way. I want to try out my hands at one of the techniques like: http://en.wikipedia.org/wiki/Port_knocking http://en.wikipedia.org/wiki/SYN_cookies How do I simulate this whole situation in my own system were I myself am the attacker and I myself have to defend it? And once I have gained an understanding of it, then how do I start translating that into programming terms?

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  • Is it possible to create a self-signed intermediate CA for ssl?

    - by limilaw
    I am trying to create my own SSL hierarchy like: MyRootCA --MyIntermediateCA ----MyCert I have installed MyRootCA and MyIntermediateCA, but windows points out that MyIntermediateCA doesn't have the right to issue certs. Therefore it invalidates MyCert. i.stack.imgur.com/XDtXp.png i.stack.imgur.com/rZNQZ.png I am using sign.sh from mod_ssl package, which utilizes openssl ca command. I wonder if there is any parameter/option that grants MyIntermediateCA the right to issue sublevel certs?

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  • Path Length in Windows

    - by Dexter
    Is there any reason paths are still limited to ~250 characters in Windows? I'm not asking about a solution here (since there isn't one, other than \\?\ perhaps), but about why this is still an issue in 2012. Microsoft itself has failed to provide an explanation, so I'm hoping that maybe someone here, who has more insight into this than me, can provide an answer. Also, if \\?\ is supposed to be the "cure" to this, why aren't paths implicitly converted to the \\?\ notation by Microsoft's own programs?

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  • Looking for spam mails.

    - by apalsson
    I am looking for a bundle of spam mails to use with my experiments with Bayesian spam filtering. Is there any resource for this or does anyone have a bundle to share with me? Something around 4-6gb zip:ed would be a nice start. Feel free to filter out your own email-address, though this is for personal use and it won't be shared with anyone. Thanks.

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  • yousendit or filesend local as well on internet?

    - by neolix
    Hi there, We are looking setup our own yousendit equivalent for our user as well for our clients! what is open source software to use, we want web interface as well email. We are looking setup using centos do any one has done some thing link this pls share with us. i have ref following link from serverfault but not getting it how do i run the show http://serverfault.com/questions/127737/is-there-a-linux-equivalent-of-yousendit

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  • Where can I find a download of both Vista (Home Premium) and Windows 7 OEM ISO?

    - by AridDecay
    I'm trying to find a place where I can download both Vista Home Premium and Windows 7 OEM Iso's. I own both, and my hard drive died in my Vista computer, so I ran out, bought another one and now need to re-install my OS. However, the computer came with it, and didn't come with a disk (Thanks Acer!) So, is there a place I can download an ISO of my Windows that ISN'T illegaly activated? I can't find any torrents that are legitimate. Thanks in advance!

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  • We are moving to two servers from one server due to performance issues. How do we monitor the value of this change?

    - by MikeN
    We are moving to two servers from one server due to performance issues. We are moving our MySQL DB to its own dedicated server and will keep the original machine as the front end machine running nginx/apache (Django backend.) How do we monitor the value of this change? It is possible our whole site could actually get slower since the MySQL queries will be going out over a secure remote connection instead of locally?

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  • Precisely position a chart in Excel

    - by ldigas
    When making a chart in the worksheet (not an independent sheet), is there a way to positon it a little more precise ? Instead of just leaving it there "floating" ? I'm having a bunch of tables, one under another, and every table is gonna have to have its own chart. Is there a way when I copy the first one, under the second one (just change the data) to make them exactly one under another ... not "wiggling" left/right ?

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  • Why is the Active Directory security setting for "Write Personal Information" automatically reset?

    - by Holistic Developer
    In my Small Business Server 2003 environment, I would like to be able to have users manage their own delegate permissions for their Exchange mailboxes. By default, the Outlook delegate feature will not work unless I go to the user object in Active Directory and grant Allow on "Write Personal Information" to SELF. This will work temporarily, but something seems to reset this value shortly afterword. What would cause this automatic reset?

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  • Can't manage Exchange 2007 Room via OWA

    - by PHLiGHT
    I created a couple of rooms in Exchange 2007 (http://www.msexchange.org/articles_tutorials/exchange-server-2007/management-administration/managing-resource-mailboxes-exchange-server-2007-part1.html)and I want to logon to OWA to manage resource settings but I can't logon to the mailboxes via OWA because of an invalid password error. I've reset it but still no luck. I've granted myself full permissions to the mailbox and try to access via my account but I just get a popup of my own account in the browser (ie9 and ie8). What's going on here?

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  • What's the importance of restoring SQL Server system databases (model, master, etc.)?

    - by Zero Subnet
    I had to restore some production databases to a different drive on the same Microsoft SQL Server 2005 machine. That worked fine and the application using the databases is back online. However, i have not restored the system (or default?) databases that SQL Server creates on its own (model, master, etc.). My question is, what is the role of these databases? and how important it is that i restore them?

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  • Alternative to Dropbox (on my server)?

    - by jweede
    I love using Dropbox to sync files between all my machines, and I've heard it uses rsync internally to keep files synced. Sometimes I need to sync very large things, and I don't necessarily want to pay for storage space on someone else's server when I have my own. So does anyone know of any nice cross-platform (pref. open source) automatic file-sync applications out there for this? sidenote: Here is a Dropbox referral link, if you're feeling generous.

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  • Override my ISP's "domain not found" page?

    - by Amanda
    If I screw up typing a URL, my ISP shoots me over to their branded search page. So if I type "superuser" in my location bar I end up at http://domainnotfound.optimum.net/cablevassist/dnsassist/main/?domain=superuser I'd like my browser to leave the location the way it was and just say "nothing doing," rather than redirecting me to a search. Can I override that in my own /etc/hosts or at my router?

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  • What are possible security issues with an SSH daemon?

    - by Zhenya
    I'd like to be able to SSH to my Ubuntu 10.04 office PC from the outside. I am thus thinking to start up an SSH daemon on the PC. What are the security issues, possible glitches, specific configuration settings, etc. I should be aware of? In case it matters: this is essentially for my own use only, I don't think there will be other people using it; it's an Ubuntu 10.04 PC in a mostly Windows 7/Vista/XP environment.

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