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• Is TrueCrypt robust against data corruption?

  - by Dimitri C.

  I would expect a TrueCrypt volume to be fragile when it suffers from data corruption. This could happen for example because the hard disk, CD or DVD start to deteriorate, or when an USB stick is unplugged while a write is in progress. On the TrueCrypt FAQ it is mentioned that this problem is limited because the data is encrypted in blocks of 16 bytes. However, I'dd like to know if this really so in practice. Is there anyone who has experienced severe data loss due to only small corruptions?

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• windows server backup 2008 R2 - what is generating all the change data?

  - by bobjandal

  We have a small relatively idle windows server 2008 R2 installation that does basic filesharing and exchange for about 10 not very active users. When running a windows server backup, the incremental data daily is about 20GB. This is not coming from users shared files, nor from changes in their mailbox sizes. The total size of the installation is 249GB, which is mostly old files. Where is all this data coming from, and how can I reduce it ? Using online backup of the vhd file from the backup is taking a while because of this daily change. Is there some way I can at least see what files are changing and contributing to this data ? Options I can think of but am not sure about: 1) pagefile churning - altho the backup does not include the pagefile, perhaps the changed blocks left behind are included ? 2) logs or something ? but the installation size stays the same every day 3) should I zero free space using sdelete before backing up perhaps ?

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• Apache2 SSL And Passenger Configuration Issue

  - by Aditya Manohar

  I have the following virtual hosts configuration blocks. <VirtualHost *:80> DocumentRoot /var/www/html/TestApp/public/ <Directory /var/www/html/TestApp/public/> Allow from all Options -MultiViews </Directory> </VirtualHost> NameVirtualHost *:443 <VirtualHost *:443> DocumentRoot /var/www/html/TestApp/public/ <Directory /var/www/html/TestApp/public/> Allow from all Options -MultiViews </Directory> SSLEngine on SSLCertificateFile /etc/pki/tls/certs/server.crt SSLCertificateKeyFile /etc/pki/tls/private/server.key </VirtualHost> I trying to serve a Rails App off Passenger on Apache. The Problem: The TestApp works fine with Apache and Passenger when not using SSL When I use https://, I see the contents of /var/www/html The path to TestApp is /var/www/html/TestApp Any help will be much appreciated.

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• Can I block social share buttons with Privoxy?

  - by gojira

  A great many pages have these "Like", "Tweet", "G+1", "share" row of buttons all over the place and in each post in threads. Can I block these unwanted context with Privoxy? I am already using Privoxy and it blocks a lot of unwanted content, but still these "social" buttons are all over the place. I want to completely remove these buttons specifically by using Privoxy. I know that it is possible to block using AdBlock LITE and other software, but my question is specific to Privoxy (reason, I want one point to block all unwanted content and it needs to work on devices / softwares which do not have AdBlock LITE, therefore I use Privoxy). -- Software used: Privoxy 3.0.21 under Windows XP

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• What cookies are allowed from Internet Explorer using this option?

  - by kiamlaluno

  When I look at the options used from Internet Explorer for the cookies, I read the following description: Blocca i cookie di terze party privi di una versione compatta dell'informativa sulla privacy. Its translation is roughtly: Blocks the cookies without a compact version of the privacy's informative. I don't get which cookies are blocked. From that description, it seems the cookies should include a compact description of the privacy informative, but I don't get how cookies can contain that information, or what happens with cookies set from sites outside the European Union. What cookies are blocked? The screenshot has been taken from Internet Explorer 9, but that words were used also from previous versions. The settings are the ones shown for the "Privacy" tab; I don't recall if the English version calls that tab the same way. EDIT, English screenshot .

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• How can we connect TP-link Access Point- TL-WA5210G with Wifi Lan card?

  - by PPS

  I would like to know that, We have a small Wireless Network that covers 40 mtrs indoor. Now we plan to expand our Network Coverage area apporx. 200 Mtrs (Outdoor). Due to our requirement we used TP- Link Access Point TL-WA5210G Outdoor(This AP covers 15Km area). We have 3 blocks between 200 mtrs, We like to connect all the laptops Lan Card directly with required Access-point. What should we do to achieve this, right now we are not getting the full strength signal, when we cross the 80 mtrs. So please suggest me proper configuration for implementing this TP-Link access point. Thanks PPS

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• How to disable a certain javascript script

  - by D-Vee

  On an active website I go to, there is this javascript code that is displayed on every page. <script type="text/javascript"> (function(){var d=document;var i=d.getElementsByTagName('iframe');if(google_ad_client!=null||(window.getComputedStyle?d.defaultView.getComputedStyle(i[i.length-1],null).getPropertyValue('display'):i[i.length-1].currentStyle['display'])=='none'){ alert('Adblock detected, please consider disabling it') }})() </script> Is there any way that I could get my adblock -- or any other type of plugin -- to disable that specific code without disabling all javascript?

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• Do you know of any alternative to "Google App Engine"?

  - by brilliant

  On their presentation of "Google App Engine" Google team members boldly said: "You write a code and we will run it for you". Then the "Google App Engine" was launched and it still does its job quite successfully - "Google App Engine" runs millions of applications of different sizes belonging to different users completely free!!! Now, here is the question: Do You know of any alternative to GAE? Have You ever even heard of any such service out there that would run Your Python code for free?

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• mount fstab partition with public access

  - by Mikhail

  How do I specify that an fstab mount-point should be public? I want /mnt/windows to be accessible to normal users. I believe I am using ntfs-3g. If I set the /mnt/windows to 777 will it be publicly accessible without changing the permissions on the NTFS disk? /dev/sdb4 /mnt/windows ntfs noatime 0 1 /dev/sdb5 / ext4 noatime 0 1 UUID=5AA4-168D /boot/efi vfat defaults 0 1 and localhost my_computer # stat /mnt/windows/ File: '/mnt/windows/' Size: 12288 Blocks: 24 IO Block: 512 directory Device: 814h/2068d Inode: 5 Links: 1 Access: (0700/drwx------) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2014-08-21 18:29:13.597722200 -0500 Modify: 2014-08-21 18:29:13.597722200 -0500 Change: 2014-08-21 18:29:13.597722200 -0500 Birth: -

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• How to connect vista system in xp registry editor ?

  - by Meenakshi

  I want to check the workgroup computers registry in vb.net code, work group computers are group of vista and xp systems.i can access the xp registry,but vista registry are not able to access. how to access vista registry in xp system using vb code? Please help me

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• Large file copy from NFS to local disk performance drop

  - by Bernhard

  I'm trying to copy a 200GB file from an NFS mount to a local disk. The local disk is an XFS filesystem on a LVM on top of a RAID 5 system (hardware RAID controler). I'm using rsync to monitor the transfer speed. At the beginning the IO speed is about 200MB/s, stable for the first 18GB. But then the performance drops by a factor of 10-20 and never recovers to the initial rate. Sometimes it reaches about 50-100MB/s but just for a few seconds and then the process seems to hang for a bit. At the same time all file-stat operations on the target filesystem are blocking for a long time (minutes). Also interrupting the copy process blocks for several minutes, a sub-sequent delete of the partly copied file takes also several minutes. Any ideas what could be causing this?

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• does the *physical* order/location of drives in a mdadm-managed RAID-10 array matter?

  - by locuse

  i've setup a 4-drive RAID-10 array using mdadm-managed, software-raid on an x86_64 box. it'd up & running and works as expected, cat /proc/mdstat md127 : active raid10 sdc2[2] sdd2[3] sda2[0] sdb2[1] 1951397888 blocks super 1.2 512K chunks 2 far-copies [4/4] [UUUU] bitmap: 9/466 pages [36KB], 2048KB chunk atm the four SATA drives are physically plugged into the motherboard's 1st four SATA ports. i'd like to gather the necessary/complete info for catastrophic recovery. reading starting here, http://neil.brown.name/blog, and the mailing list, i'm not yet completely confident i have it right. i understand 'drive order matters'. is that logical, &/or physical order that matters? if i unplugged the four drives in this array, and plugged them each back into different ports on the motherboard or a pci card, as long as i've changed nothing in software config, will the array correctly auto-re-assemble?

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• direct http to https on certain pages?

  - by Elliott

  Hi below is some code I added to my .htaccess code how can I add certain pages to be re-directed to https? such as login.php & login.html also if the user types in www. they get a "untrusted connection" as the SSL is only valid without the www. how could I fix this? Thanks RewriteEngine On RewriteCond %{HTTPS} off RewriteCond %{REQUEST_URI} /login.html RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI}

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• Reshape linux md raid5 that is already being reshaped?

  - by smammy

  I just converted my RAID1 array to a RAID5 array and added a third disk to it. I'd like to add a fourth disk without waiting fourteen hours for the first reshape to complete. I just did this: mdadm /dev/md0 --add /dev/sdf1 mdadm --grow /dev/md0 --raid-devices=3 --backup-file=/root/md0_n3.bak The entry in /proc/mdstat looks like this: md0 : active raid5 sdf1[2] sda1[0] sdb1[1] 976759936 blocks super 0.91 level 5, 64k chunk, algorithm 2 [3/3] [UUU] [>....................] reshape = 1.8% (18162944/976759936) finish=834.3min speed=19132K/sec Now I'd like to do this: mdadm /dev/md0 --add /dev/sdd1 mdadm --grow /dev/md0 --raid-devices=4 --backup-file=/root/md8_n4.bak Is this safe, or do I have to wait for the first reshape operation to complete? P.S.: I know I should have added both disks first, and then reshaped from 2 to 4 devices, but it's a little late for that.

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• Enable file download via redirect in IE7

  - by Christian W

  Our application enables our customers to download files to their computer. The way I have implemented it is using asp.net with a dropdown. When the user clicks the dropdown they get the choice of "PDF","Powerpoint", and a couple of other choices depending on circumstances. Then, in postback depending on the choice the user made, it will return a file (changing the content-header and such and then bitbanging a file to the user). This works perfectly in all browsers, but IE7 complains that this is a security risk and blocks the download. Is there any way for the users to authorize downloads from our webapplication?

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• Suggestions for Website Maintenance

  - by IceMage

  I have a website that is being hosted and supported by a company that is going out of business. We are looking for a company to do maintenance on the code/content side, and will likely move the hosting to Rackspace.com (or another SAS70 certified provider). We are bringing the CMS with us, which I know is unusual, but we like it and would like to keep it. What companies should I look at for just CODE and CONTENT maintenance? It's a PHP/MySQL website.

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• unix script problem

  - by Darie Nicolae

  Hello everyone, I have a simple script which runs on a FreeBSD machine with the following code: #!/bin/sh `sed -i .bak '\:#start 172.0.0.3:,\:#end 172.0.0.3:d' /usr/local/etc/racoon/racoon.conf` echo $? It should delete a block of text between the two patterns. The problem is that if I run the sed command directly from shell it works, if i run the script the return code is 0. Why's that?

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• pf not execute udp port specific block rule

  - by seaquest

  The traffic I want to block can be sniffed as below with tcpdump: 19:16:22.391164 IP 95.95.95.95.2036 > 10.10.10.10.443: UDP, length 8192 So I wanted to write a rule block any udp destination port 443 traffic. block drop quick on igb3 inet proto udp to any port 443 Traffic does not match and does not blocked. However, It matches and blocks if I write rule as below: block drop quick on igb3 inet proto udp to 10.10.10.10 Do you have any remarks? I am using pf in Freebsd.

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• Resize PV on LVM

  - by Paul Tarjan

  I have this: Device Boot Start End Blocks Id System /dev/sda1 * 1 1217 9775552 83 Linux /dev/sda2 1218 60801 478608480 83 Linux And I'd like to shrink sda2 by about 10 Gigs to give some more space to sda1. sda2 is a PV on an LVM, but there is some free space in the VG so I don't have to worry about filesystem shrinking. How can I tell my LVM to move the data off of the first 10 gigs of sda2 and then redo my partition table to give it to sda1? (I don't have enough free space to just pvremove sda2, which would be the easy solution).

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• Apache - Same username in several .htpasswd files

  - by greydet

  In a virtual host, I setup two different <Location> blocks for which the access is restricted by two basic authentication htpasswd files. One htpasswd contains different usernames + a common user name. The other htpasswd file only contains the common user name. My problem is that once users connect a location with the common user name, they have immediate access to the other location without being asker for a different user name. Is there a way to restrict the username access only to the corresponding htpasswd file? Is there a way for users to ask to be re-prompted for another username/password?

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• Multiple foldmethods in vim

  - by bjarkef

  I use the folding option of vim quite a lot, and have usually set foldmethod to syntax. Recently I discovered that it is possible to add custom folds, such that I can put whole blocks in /*{{{*/ and /*}}}*/ which is very useful for grouping large sections of a source file together. However to use that feature I need to set foldmethod to marker, and I loose the syntax folding. Is it possible to have two active foldmethods at the same time in vim? set foldmethod=syntax,marker does not work.

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• ASP.NET MVC multi-instance session management on amazon ec2

  - by gandil

  I have a web application written in asp.net mvc2. Currently hosted on amazon cloud ec2. Because of growing traffic we want move multi instance enviorenment. I have a custom session class which currently initiate at session start (global asax) and i am using via getter or setter class in application. Because of multi instance chore i have to handle hole security architecture. I am looking a better way to handle this problem. I am looking for good implementation of session and how to apply on amazon ec2 multi instance environment. What is road blocks for system architecture?

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• Parse and validate Asterisk dialplan before commiting

  - by adaptive

  I recently made a number of changes to my Asterisk dialplan and would like to validate these changes before I commit. I am thinking more from a "write code" - "compile" - "debug" approach. I am very new to Asterisk and am trying to build my dialplan slowly but the server is already in use (by the spouse) so I'd like to minimize interruptions as much as possible. If I can at-least verify that the code is correct, I can then debug in Asterisk as calls are taking place.

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• GMail Phone dialer - shortcut key for pushing the hash or pound key?

  - by Brian

  I use the GMall 'Call phone' feature a lot, and the numeric keyboard pad works great for entering conference codes, but most conference call services want you "Enter your conference code followed by the 'hash' or 'pound' sign. So I end up typing the 10 digit conference code using the keyboard but then I have to use my mouse to push the # or hash sign. Is their a way to push the # with the keyboard?

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• Run Wave Trusted Drive Manager from a bootable CD, recover crashed enrypted SSD?

  - by TigerInCanada

  Is there a way to run Wave Trusted Drive Manager from a live-cd to access a non-bootable SSD with Full Disk Encyption hard disk? http://www.wave.com/products/tdm.asp The crashed disk is a Samsung SSD PB22-JS3, 128Gb. Is has bad blocks at 128-block intervals. If the SSD password could be unset, is sending the unit for disaster recovery possible? What might cause a nearly new SSD to crash in this way, and what is the probability of it happening again? We have other units in service an I can do without every laptop disk in the company crashing...

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