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• Check a list of passwords strength

  - by user144705

  Is there any way to check a list of passwords whether they strong or not? I have a list of passwords, around 2000, and want to check them against this policy Password must contain a minimum of eight (8) characters Password must contain at least one letter Password must contain at least one number Password must contain at least one punctuation character And count how many compliant with that policy before we save them. Is there any tool, script or maybe rules in excel to do this instead of doing it manually? Could you please help me?

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• Can someone explain the physical architecture of RAID 10 in complete layman's terms?

  - by Hank

  I am a newbie in the world of storage and I am having a hard time digesting the physical architecture of some of the RAID levels. I am particularly interested in RAID 10, and 50. I asked the question specifically about RAID 10, because I feel if I understand that, I'll understand the other. So, I get the definition of RAID 10 - "minimum 4 disks, a striped array whose segments are mirrored". If I've got 4 disks and Disks 1 and 2 are a mirrored pair, and Disks 3 and 4 are a mirrored pair - where does the data get striped? Thanks.

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• Chipset GPU causes a massive slowdown

  - by zyboxenterprises

  My AMD Radeon HD 7700 recently broke (fan stopped working and GPU overheated), and now I'm running on internal chipset graphics, and it causes a massive slowdown of the whole PC. I've changed the graphics memory from 32MB (minimum) to 256MB (highest), and it hasn't made any difference whatsoever. I'm using Windows Aero, and disabling it should have made a small difference, but it didn't; the whole PC is still slow. I know that it's not the computer build, because I built it myself, and it was a lot faster when it had the AMD Radeon HD 7700 in it, which is the reason why I believe it's the internal chipset graphics that are causing the problem. Is this behavior normal? I don't have the cash right now to go out and buy a new dedicated GPU. I'm using an ASRock N68C-GS FX motherboard with an AMD FX 4100 (overclocked to 4.3GHZ), with 4GB RAM. The overclock was an attempt to resolve this issue, and it isn't related to this issue that the integrated graphics is causing a slowdown.

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• xrander detect only one display

  - by cupakob

  Hi all, i have a problem, to get a picture on my tv over VGA (and also over S-Video to SCART). I've tried it first over xorg, but without success. After that i tried xrand, but xrander detect only my laptop display, here the output bufka [~] $ xrandr -q Screen 0: minimum 1680 x 1050, current 1680 x 1050, maximum 1680 x 1050 default connected 1680x1050+0+0 0mm x 0mm 1680x1050 50.0* 51.0 52.0 Any suggestions, how to solve the problem? My video card is Nvidia Geforce 8600M GT, TV is LG M227WPD and OS Ubuntu Lucid...

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• Excel 2010: Copy row conditionaly

  - by TimothyHeyden

  I've searched for a similar question here, but haven't been able to find something that answers my issue. I'm a mediocre user of Excel 2010 with no experience in macro's. I have a dataset where each row represents a data entry. Let's say each row can be for each of its values (the columns) the maximum or minimum of the entire dataset. How can I create a row at the top where the, for instance, maximum row is shown dynamicly? So when extra data is added to the bottom of the dataset, the new maximum (if applicable) is shown in that row at the top. Thank you in advance!

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• Backup and restore MySQL database without system access

  - by Sencerd

  Hi guys, I am trying to move a database from 1 provider to another, the problem is that I don't have system access at either end (ie, no ssh), so I cannot use a mysqldump. I have already tried using MySQL Administrator, the backup took about 45 minutes, but when it came to restoring it was moving at a snails pace, and estimating 12+ hours. This is a live app so I need to keep the downtime to an absolute minimum. The database consists of 35 tables, a mixture of MyISAM and InnoDB, the whole thing comes to about 4.4GB. The source and destination databases are both running on very powerful servers. Any suggestions on a quick way of doing this will be gratefully received. Thanks

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• How to efficiently dump a huge MySQL innodb database?

  - by Jagbir

  I got an Ubuntu 10.04 production MySQL database server where total size of database is 260 GB while size of root partition is itself 300 GB where DB is stored, essentially means around 96% of / is full and there's no space left for storing dump/backup etc. No other disk is attached to server as of now. My task is to migrate this database to other server sitting in different datacenter. Question is how to do that efficiently with minimum downtime? I'm thinking in line of: Request to attach an extra drive to server and take a dump in that drive. Transfer dump to new server, restore it and make new server slave of existing one to keep data in sync When migration is needed, break replication, update slave config to accept read/write requests and make old server read-only so it won't entertain any write requests and tell app developers to update there config with new IP address for db. What's your suggestions to improve this or any alternate better approach for this task?

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• httpd service keep restarting. after 15-20 mins

  - by niraj

  I have recently purchased Dedicated Server which has 16bg ram and 1TB Harddisk. It has Cpanel and for firewall CSF Installd. I am mainly going to install it for File hosting service. Now the day i moved my httpd service keep restarting every 15-20 mins. It becomes unresponsive after that so have to manually restart it. My httpd settings are Start Servers = 5 Minimum Spare Servers = 5 Maximum Spare Servers = 10 Server Limit = 20000 Max Clients = 10000 Max Requests Per Child = 10000 Keep-Alive = On Keep-Alive Timeout = 5 Max Keep-Alive Requests = Unlimited Timeout 300 TOP is top - 14:53:41 up 1 day, 23:39, 2 users, load average: 0.10, 0.14, 0.09 Tasks: 1563 total, 1 running, 1562 sleeping, 0 stopped, 0 zombie Cpu(s): 0.7%us, 0.6%sy, 0.0%ni, 98.1%id, 0.2%wa, 0.0%hi, 0.5%si, 0.0%st Mem: 16303780k total, 16142048k used, 161732k free, 135264k buffers Swap: 8224760k total, 868k used, 8223892k free, 14136616k cached Please help me in this its keep happning.

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• Could a computer act (dependably) as a wireless router for 200+ clients? [closed]

  - by awkwardusername

  That is, I have a Core 2 Duo E7500 at 2.93GHz, with 2GB memory. I plan to install either Windows Server 2012 or Zeroshell 2.0RC1, and it also (planning to) includes two PCIe Wireless Card Adapters. It also has one ethernet port, and I will connect that to another machine which will be a Database and a Web Server. My plan is to have a corporate level wireless intranet with 200+ clients. I cannot afford to buy routers because I want to operate at zero costs as possible, utilizing my available resources. Is that plan plausible? Also, what minimum specs should my wireless card have? @SvenW: Oh, I meant corporate on the deployment level. I am still an undergraduate and this is more of an educational and expiremental work than an actual project. I got Windows Server 2012 for free though, and this isn't actually for commercial use.

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• How do I get the best quality screenshot for OCR (Optical Character Recognition) and what tool would

  - by GiH

  I'm trying to get some data into a text file from screenshots. Apparently screenshots don't work very well with OCR because they are 75dpi and the minimum for good quality OCR is 150dpi. Does anyone know how what the best way to be taking screenshots for OCR would be? And also, what the best OCR software for doing this would be? Right now I'm getting pretty good results with the free online tools such as new-ocr but it does make mistakes that I have to correct every now and then. So I'd like some tips. UPDATE: I tested out ABBYY screenshot and it was pretty bad... the online tools are better

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• How to change resolution in Ubuntu 10.04, where xvinfo is showing no adapters present?

  - by YumYum

  I am trying to maximize my resolution where I have Resolution: 800x600 (4:3) and Refresh rate: 61Hz I tried the following, but it did not work: $ xvinfo X-Video Extension version 2.2 screen #0 no adaptors present $ cvt 1920 1080 # 1920x1080 59.96 Hz (CVT 2.07M9) hsync: 67.16 kHz; pclk: 173.00 MHz Modeline "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync $ xrandr --newmode clever_name 173.00 1920 2048 2248 2576 1080 1083 1088 1120 $ xrandr -q Screen 0: minimum 640 x 480, current 800 x 600, maximum 800 x 600 default connected 800x600+0+0 0mm x 0mm 800x600 61.0* 640x480 60.0 clever_name (0x11d) 173.0MHz h: width 1920 start 2048 end 2248 total 2576 skew 0 clock 67.2KHz v: height 1080 start 1083 end 1088 total 1120 clock 60.0Hz $ xrandr --addmode default clever_name $ xrandr --output default --mode clever_name xrandr: Configure crtc 0 failed

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• Ubuntu nasty error: The panel encountered a problem while loading xxxApplet

  - by Phuong Nguyen

  I have install ubuntu & GNOME (say, with minimum possible number of packages). I can login and do anything as I want. However, there is a nasty thing: Whenever I loggin in, I see this message: Error The panel encountered a problem while loading "OAFIID:GNOME_FastUserSwitchApplet" Do you want to delete the applet from your configuration [Don't Delete] [Delete] If I press [Delete] then the error won't be shown anymore. However, for every new created account, the message shown again (use created using sudo adduser user_name). Since I clone this OS into several virtual instance, and create new account on these instances. I wonder if there is a way to configure my ubuntu so that new created user don't have to see this annoy message? Thanks

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• A space-efficient guest filesystem for grow-as-needed virtual disks ?

  - by Steve Schnepp

  A common practice is to use non-preallocated virtual disks. Since they only grow as needed, it makes them perfect for fast backup, overallocation and creation speed. Since file systems are usually based on physical disks they have the tendency to use the whole area available1 in order to increase the speed2 or reliability3. I'm searching a filesystem that does the exact opposite : try to touch the minimum blocks need by an aggressive block reuse. I would happily trade some performance for space usage. There is already a similar question, but it is rather general. I have very specific goal : space-efficiency. 1. Like page caching uses all the free physical memory 2. Canonical example : online defragmentation 3. Canonical example : snapshotting

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• Run application with other user

  - by user62367

  OS: Fedora 14 GUI: GNOME I need to run an application with another user then the "default" (normally used). Purpose: create a ".desktop" file on my desktop to run e.g.: Google Chrome with another user (NOT ROOT! - so beesu doesn't count.) There aren't any gksu, or kdesu packages in Fedora 14. Why? So i want to create a user with "adduser SOMEONE", and i want to run e.g.: Google Chrome with "SOMEONE" - then it will have minimum permissions, "more security". Thank you!

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• Free / Cached / Available memory on Linux

  - by pkoraca

  I have read that linux uses free memory for caching, to make system faster. However, both Nagios and Paessler PRTG monitoring system show me that my memory usage is critical. I could change Nagios mem_usage script to sum free and cached memory, but would that be correct information? I doubt that they misunderstood Linux memory usage. Lets say I have 8 GB RAM. 5 GB are used, 2 GB is cached, and I have 1 GB of free memory. Real available memory should be free+cached (3 GB)? If some new application would need additional 3 GB RAM, could it take everything from cache and free without using swap, or is there a minimum that should be in cache? Real example: $ cat /proc/meminfo MemTotal: 5984256 kB MemFree: 137052 kB Buffers: 140484 kB Cached: 3439616 kB SwapCached: 244 kB Active: 3148824 kB Inactive: 2341768 kB ... My monitoring tools show that I have 137 MB free RAM, however I have ~3,5 GB in Cache. Thanks!

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• win2008 R2 server core software RAID

  - by shimonyk

  I am trying to set up software raid on a win2008 R2 server core. I have the disks configured as dynamic. In the server manager gui, i can see the disks, but when i right click, the option to set up "new mirrored volume" is not listed. I tried it with the command line using diskpart, and it gives the error "Virtual Disk Service Error: The size of the extent is less than the minimum." The drive are a new pair of 1Tb disks. Is this not supported in server core, or am i missing something else? Thank you

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• Why does HDTune report better performing drives 2 months after installing them?

  - by Rolnik

  OK, so this is really weird. I ran HDTune on a newly set-up home-built computer and got the following readings from my drives in mid-November. SSD 154 MB/s RAID1 87 RAID0 198 (software installs) RAID0 98 Swap drive Today, in January, I run HDTune (same version) and get these results, in MB/s: SSD 186 RAID1 98 RAID0 241 RAID0 98 (Swap drive) Here are more details that HDTune reports on the SSD drive: HD Tune: OCZ-VERTEX Benchmark Blockquote Transfer Rate Minimum : 135.4 MB/sec Transfer Rate Maximum : 219.4 MB/sec Transfer Rate Average : 185.7 MB/sec Access Time : 0.1 ms Burst Rate : 187.3 MB/sec CPU Usage : -1.0% To get to my question: Why are my hard drives improving in performance? Most of my logical drives are in some form of RAID, except for the SSD. Will this performance ever deteriorate? Note, none of my drives are a hybrid drive that uses some form of SSD to enhance the write/reads on actual platters.

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• Meaning of tcp_delack_min

  - by Phi

  Hi, the current Linux Kernel (e.g. 2.6.36) uses Delayed Acknowledgments (delack). In /include/net/tcp.h it says: define TCP_DELACK_MIN ((unsigned)(HZ/25)) So, for a Kernel using a HZ value of 1000, an ACK should be delayed by a minimum of 40 ms. However, RFC 2581 says a TCP implementation should acknowledge every second full sized segment without further delay. Does anybody know whether the Linux Kernel follows that 'should' or whether the TCP_DELACK_MIN value means that even after a full sized segment was received, the ACK continues to be delayed until 40 ms have passed?

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• Permissions to run a SharePoint 2010 Application Pool?

  - by Michael Stum

  I'm currently in the process of setting up a SharePoint 2010 farm. In my Dev Environments, I have one account that is Local Admin, Farm Administrator and runs all Application Pools. For Production Environment, I would like to go with best Security Practices and run the Web Applications (At least 2: Main Portal and My Sites) with separate Domain Accounts. It's been some time that I worked with IIS, and I remember that there were issues with accessing files in c:\inetpub by non-Admin users. On the other hand, SharePoint "automagically" sets most permissions anyway. Does anyone have some experience with which permissions I need to give to the domain account at minimum in order to work?

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• High shmmax value in Redhat 6.3

  - by xpapad

  We are using Redhat 6.3 with 30G RAM to host our Postgres server. The (default) shmmax value is 68,719,476,736 In some forums I have read that having an shmmax value larger than the RAM causes extensive paging, but in the Redhat forums it warns against changing a kernel parameter that is already configured to a value larger than the minimum requirements for an environment. In ServerFault I've read that this probably has no impact. So is there any impact of having shmmax value RAM in a DB server, or the kernel understands this and handles it appropriately? Thanks

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• Which server requirment for a Redmine, Git and website hosting?

  - by Ephismen

  Me and 9 other students are going to start a project that will last a minimum of 2 years, for this purpose we are looking to host all our work on a server. Here are a few tools we would like to work with: Redmine GIT Hosting a website/blog to show our work Hosting an internal and private development website/blog We haven't decided yet which OS we will install, but we were looking toward Ubuntu or Fedora. Having a limited budget, 300$/year, we would like to have some advices on the following dedicated server specifications: Kimsufi 2G: Hardware: Intel Celeron/Atom, 1.20 Ghz, 64 bits, 2Gb DDR2, HDD 1 To, Backup FTP 100Gb Network: Connection 100 Mbps, Illimited trafic Dedibox SC: Hardware: Dell Nano U2250, 1x 1,6GHz, 64 bits, 2Gb DDR2, HDD 160 Gb Network: Connection 1Gbit/sec, Illimited trafic Will these server be sufficient? Should we host the websites on another platform? Would a virtualized server be more appropriate? Thank you for your answers, Ephismen.

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• How are cached Windows credentials stored on the local machine?

  - by MDMarra

  How are cached Active Directory domain credentials stored on a Windows client? Are they stored in the local SAM database, thus making them susceptible to the same rainbow table attacks that local user accounts are susceptible to, or are they stored differently? Note, that I do realize that they are salted and hashed, so as not to be stored in plain-text, but are they hashed in the same way as local accounts and are they stored in the same location? I realize that at a minimum they're be susceptible to a brute force attack, but that's a much better situation than being vulnerable to rainbow tables in the event of a stolen machine.

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• duplicate video stream using a router (?)

  - by Dani

  I have a viedo stream coming from one site, I want to do the following with the minimum delay possible: I want to duplicate the stream (inside the router - preferred) and send it to a few more locations one of them is local network and the rest - on other networks. I want to be able to do it to several streams simultaneously. Is it possible to do this - using network devices only ? What device is capable to do this ? (I can always record the stream and rebroadcast it - but that's a lot of delay, I'm looking for functionality that similar to port duplicating, but on higher layers). Thanks.

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• How to interconnect laptop, PC, Android & Symbiam phones with WiFi?

  - by noquery

  What I have Level One wifi Router hub Laptop with Windows 7 (wifi enabled) Desktop PC with Windows 7 (with no wifi, maybe LAN cables can help) 2 android & 1 Symbian Phones each wifi enabled. LAN Cables Hathway Internet connection which allows only 1 login to access internet What I want Is it possible to access internet on PC, laptop, mobiles at the same time with only one connection? Since I don't know even A of networking so please suggest some software which require minimum cofiguration. Let me know if any other hardware I require.

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• Cisco ASA 5505 inside interface multiple ip addresses

  - by Oneiroi

  I have an issue this morning where I want to be able to assign multiple ip addresses to the inside interface to facilitate an ip range migration for an office. Namely from a 192.168.1.x range to the new range, with the minimum of interruption for those working in the office. (New DHCP leases will use the new range, whilst those still on the 192.168.1.x range can continue to work until their lease is renewed). However I can not for the life of me figure out how to achieve this, trying to create multiple interfaces for the job leads to complaints about the license only allowing 2 active interfaces. Any suggestions? thanks in advance.

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