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• Installing grub2 on ubutntu with software raid mirroring

  - by Marko

  Hi guys, Can someone help me out on this? I accidentally installed grub on usb flash drive during ubuntu server installation. Now I cant boot system without drive attached to server. I want to install grub on hard drive with grub-install but i don't know what to set as location for boot loader? my fstab looks like this: file system mount point type options dump pass proc /proc proc nodev,noexec,nosuid 0 0 /dev/mapper/pdc_jdbeghhjg1 / ext4 errors=remount-ro 0 1 /dev/mapper/pdc_jdbeghhjg5 none swap sw 0 0 and partition tables for hard drives as this: Device Boot Start End Blocks Id System /dev/sda1 2048 1215662079 607830016 83 Linux /dev/sda2 1215664126 1249998847 17167361 5 Extended /dev/sda5 1215664128 1249998847 17167360 82 Linux swap / Solaris Device Boot Start End Blocks Id System /dev/sdb1 1 75672 607830016 83 Linux /dev/sdb2 75672 77809 17167361 5 Extended /dev/sdb5 75672 77809 17167360 82 Linux swap / Solaris ?

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• Puppet:get real-time status of catalog evaluation and post to remote server

  - by txworking

  According to this article http://docs.puppetlabs.com/guides/puppet_internals.html There are four phases when puppet agent got a catalog from master. resource generation = relationships = evaluation = reporting Reporting As the transaction progresses, it collects logs and metrics on what it does. At the end of evaluation, it turns this information into a report, which it sends to the server (if requested). And at the end of evaluation puppet agent would generate a report and sent the report to the master. Is there a way to get real-time status of evaluation phase and post them to a remote logcollector? Glad for any suggestions.

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• Out of nowhere, ssh_exchange_identification: Connection closed by remote host

  - by disusered

  I am running Ubuntu 10.10 on a remote box. I ssh to it everyday without issues but today out of the blue, I get the following error: ssh_exchange_identification: Connection closed by remote host If I connect with -vv, I get the following: OpenSSH_5.6p1, OpenSSL 0.9.8r 8 Feb 2011 debug1: Reading configuration data /Users/bla/.ssh/config debug1: Applying options for ubuntu-server debug1: Reading configuration data /etc/ssh_config debug1: Applying options for * debug2: ssh_connect: needpriv 0 debug1: Connecting to ubuntu-server.com [123.123.123.123] port 22. debug1: Connection established. debug2: key_type_from_name: unknown key type '-----BEGIN' debug2: key_type_from_name: unknown key type '-----END' debug1: identity file /Users/bla/.ssh/id_rsa type -1 debug1: identity file /Users/bla/.ssh/id_rsa-cert type -1 ssh_exchange_identification: Connection closed by remote host If I remove the key, I get the exact same output (sans "debug2: key_type_...). I've managed to log in physically and checked my hosts.allow and hosts.deny but they have no entries. I tried removing and reinstalling OpenSSH, checked authorized_keys and ~/.ssh permissions and tried connecting from other computers only to get the same error. I'm at my wits end, any help would be greatly appreciated.

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• Write permissions denied on linked tables between MS Access 2003 and 2007

  - by STEVE KING

  We are in the process of switching over to Access 2007. We have numerous data tables in Access 2003 files. In one case, the user has 2007 on his PC and opened the front end in 2007. No problems. When the the user is done, he clicks a button that executes a macro full of update queries. The macro reaches the first query and halts. We get a message saying we do not have permissions to write to this linked table (2003 format). There were no security files involved. We re-linked from 2007, same problem. LAN permssions were ok. I wound up having to import the tables to front end in order for the user to be able to do his job.

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• function to org-sort by three (3) criteria: due date / priority / title

  - by lawlist

  Is anyone aware of an org-sort function / modification that can refile / organize a group of TODO so that it sorts them by three (3) criteria: first sort by due date, second sort by priority, and third sort by by title of the task? EDIT: If anyone can please help me to modify this so that undated TODO are sorted last, that would be greatly appreciated -- at the present time, undated TODO are not being sorted: ;; multiple sort (defun org-sort-multi (&rest sort-types) "Multiple sorts on a certain level of an outline tree, or plain list items. SORT-TYPES is a list where each entry is either a character or a cons pair (BOOL . CHAR), where BOOL is whether or not to sort case-sensitively, and CHAR is one of the characters defined in `org-sort-entries-or-items'. Entries are applied in back to front order. Example: To sort first by TODO status, then by priority, then by date, then alphabetically (case-sensitive) use the following call: (org-sort-multi '(?d ?p ?t (t . ?a)))" (interactive) (dolist (x (nreverse sort-types)) (when (char-valid-p x) (setq x (cons nil x))) (condition-case nil (org-sort-entries (car x) (cdr x)) (error nil)))) ;; sort current level (defun lawlist-sort (&rest sort-types) "Sort the current org level. SORT-TYPES is a list where each entry is either a character or a cons pair (BOOL . CHAR), where BOOL is whether or not to sort case-sensitively, and CHAR is one of the characters defined in `org-sort-entries-or-items'. Entries are applied in back to front order. Defaults to \"?o ?p\" which is sorted by TODO status, then by priority" (interactive) (when (equal mode-name "Org") (let ((sort-types (or sort-types (if (or (org-entry-get nil "TODO") (org-entry-get nil "PRIORITY")) '(?d ?t ?p) ;; date, time, priority '((nil . ?a)))))) (save-excursion (outline-up-heading 1) (let ((start (point)) end) (while (and (not (bobp)) (not (eobp)) (<= (point) start)) (condition-case nil (outline-forward-same-level 1) (error (outline-up-heading 1)))) (unless (> (point) start) (goto-char (point-max))) (setq end (point)) (goto-char start) (apply 'org-sort-multi sort-types) (goto-char end) (when (eobp) (forward-line -1)) (when (looking-at "^\\s-*$") ;; (delete-line) ) (goto-char start) ;; (dotimes (x ) (org-cycle)) )))))

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• What protocols will/are ISPs use for IPv6 deployment?

  - by rbeede

  Currently ISPs deal out addresses via DHCP for IPv4 dynamic (single) addresses. What protocol will/are ISPs going to use for IPv6 when they can hand a customer an entire /64 (or /48 if they are nice) block? DHCPv6, RA? For ISPs that support true end-to-end IPv6 will they provide gateway devices (similar to cable modem or true DSL bridges for example) that receive border information for that specific customer? I'm just trying to get an idea of how your common residential service customer will have to configure things in an IPv6 Internet (whenever that comes). Will it be something customers are expected to statically configure on their home wireless router? Today with IPv4 I do it like this: Modem (bridge) passes public IPv4 obtained via DHCPv4 from ISP to second device (wireless router). It in turn has its own DHCPv4 service it provides on the internal lan.

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• Vim equivalent to Emacs C-i?

  - by Culip

  Does Vim have a command equivalent to Emacs' Ctrl-I? Emacs has an extremely useful shortcut "C-I" which fixes indentation of the current line (or selected lines.) For example, suppose you write this tiny code on Emacs: def foo print "boo" end and you are selecting the whole 3 lines. You press "C-I" then the code becomes def foo print "boo" end I can use this in quiet mode i.e. ignoring. Emacs as well. Does anyone know how to do this on Vim?

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• What is OpenSVC?

  - by sh-beta

  OpenSVC was just ported to the FreeBSD platform. The little blurb in that announcement intrigued me so I went to the OpenSVC website and found this: OpenSVC is a 'service' manager, as in clustered service manager, designed for real-world heterogeneous datacenters and large-scale operations orchestrator (disaster recovery, for example). Services are collections of resources (virtual machine, ip, disk groups, filesystems, file synchronizations, and application launchers). Services can be started, stopped and queried for status, providing a consistent command set for wildly different service integration types. Service configurations, status and logs are pushed to a central database coupled to a web front-end (collector). Services can be administered using the stand-alone GPLv2 software stack deployed on the nodes (nodeware), or through the web-front end. Plus some UML-type graphics. Which is all neat, but I still don't understand: what does it do? Am I just being dense? What's the use case for this system?

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• Synergy configuration with multiple X screens

  - by Rob Drimmie

  I'm having a problem figuring out how to configure synergy to behave on a system with multiple X windows. On my desktop I am running Ubuntu 10.04 LTS. I have two monitors, setup as separate X screens by preference as well as to enable me to rotate the left-hand monitor. I also have a laptop, which I have on the desk in front of me, lower than the other two monitors. I have a very simple synergy.conf: section: screens desktop: laptop.local: end section: links desktop: down = laptop laptop: up = desktop end It works, but on the desktop only on whichever screen I run synergys from in terminal (I haven't set it up to run at startup yet because I've been playing with the configuration). I can't find any information how to reference multiple screens on one system, and would appreciate any help.

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• rsync (or robocopy) from multiple computers - what happens?

  - by TheCleaner

  If a Linux server has two different rsync jobs nightly for the same folder to two different destinations, do both destinations end up with the same end set of files? Or does the first job run, and set something on the source folder/files that would cause the 2nd rsync job to not realize the daily changes/updates to the source? Same for a Windows environment using something like robocopy, or even a "differential" backup using BUE or similar. Does each "sync" compare the destination to the source and update the destination regardless of if it is synced multiple times to different destinations?

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• Replacing a non-failing drive in a RAID-0 array

  - by TallFurryMan

  I have a Windows 7 machine booting on a RAID-0 pair of 500GB disks, controlled by an ICH9R. One of those was indicating an end-To-end SMART failure, so I added a spare disk as a temporary workaround, before receiving another to replace the failing one. The RAID-0 rebuilt on the spare and dropped the failing one from the array, as expected. Now that I received the new drive, what are my options to reintegrate it in the array? My first thought was to simply clone the temporary disk to the new one while the array is offline, but shouldn't there be a way to force a second rebuild, just as if the temporary drive had a warning, and drop that temporary from the array?

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• Installing grub2 on ubuntu with software raid mirroring

  - by Marko

  Can someone help me out on this? I accidentally installed grub on usb flash drive during ubuntu server installation. Now I cant boot system without drive attached to server. I want to install grub on hard drive with grub-install but i don't know what to set as location for boot loader? my fstab looks like this: file system mount point type options dump pass proc /proc proc nodev,noexec,nosuid 0 0 /dev/mapper/pdc_jdbeghhjg1 / ext4 errors=remount-ro 0 1 /dev/mapper/pdc_jdbeghhjg5 none swap sw 0 0 and partition tables for hard drives as this: Device Boot Start End Blocks Id System /dev/sda1 2048 1215662079 607830016 83 Linux /dev/sda2 1215664126 1249998847 17167361 5 Extended /dev/sda5 1215664128 1249998847 17167360 82 Linux swap / Solaris Device Boot Start End Blocks Id System /dev/sdb1 1 75672 607830016 83 Linux /dev/sdb2 75672 77809 17167361 5 Extended /dev/sdb5 75672 77809 17167360 82 Linux swap / Solaris ?

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• I can see markup characters in vim `:help`

  - by Relax

  I just created a .txt file inside .vim/doc for documenting one little function of my .vimrc, ran :helptags ~/.vim/doc and apparently the whole vim help system went wild. Now, if I open for example :help help, I see things like: This also works together with other characters, for example to find help for CTRL-V in Insert mode: > :help i^V < (notice the < and characters). I can also see the ~ at the end of headlines and the modeline at the end of the help page (thinks like vim:tw=78:ts=8:ft=help:norl:). I have no idea about what happens or how to fix it. Any clue? Thanks in advance!

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• What is the "real" difference between a NAS and NFS? Or, why pick a NAS device over "mere" NFS?

  - by warren

  From an end-user perspective, what is the difference between a NAS device and using NFS exports from a file server? They seem to accomplish the same end result. The difference between a SAN and other file storage is related (in my experience) to how they are connected to the server infrastructure. However, the difference between a NAS, connecting over a standard ethernet port, and NFS (sharing storage off specific servers, also over the network), seems more nebulous. Is there a good reason to pick a NAS filer over just running NFS on servers?

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• URI Rewrite with fake subdomains and multiple variables

  - by Rich

  Can someone please help with trying to use mod rewrite so foo.domain.com is rewritten to domain.com/p.php?s=foo and foo.domain.com/bar to domain.com/p.php?s=foo&p=bar? Currently my .htaccess is: RewriteEngine On # Remove www RewriteCond %{HTTP_HOST} ^www.domain.com$ [NC] RewriteRule ^(.*)$ http://domain.com/$1 [R=301,L] # Rewrite subdomain etc. RewriteCond %{HTTP_HOST} ^(.*)\.domain\.com$ [NC] RewriteRule ^([^/]+)/?$ p.php?s=%1&p=$2 [QSA,L,NC] But I can't work out how to grab the second variable (being optional and after a slash at the end of the URI. I've tried changing the end of the condition to ?/(.*)$, but to no avail and my mod rewrite skills are certainly naff!

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• What are possible reasons why a calendar entry in OWA is at a different time than in Outlook?

  - by Ken Pespisa

  We have two Exchange 2003 servers, our primary server and a front-end server that hosts Outlook Web Access (OWA). When I open my boss' calendar via Outlook 2007 (from my Outlook client as well as hers) I see the event scheduled for 10:30 am. When I open her calendar via Outlook Web Access, the same event is scheduled for 4:30 am. I don't understand Exchange well-enough to imagine how this is possible. If you have any ideas why this could be happening, I greatly appreciate it. I'd also very much appreciate any insight you have to how this could be possible. There must be some cached data on the front-end server that causes the calendar entry to appear at a different time, I suppose. Any insight into how Exchange manages that cache and where I could look for an issue would be very helpful. Thank you!

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• Some search keywords in the omnibox have stopped working

  - by pinouchon

  My problem in the same as described here: http://productforums.google.com/forum/#!topic/chrome/HE7ak4y92YU When I type a search in the chrome omnibox, after typing enfr [space] chrome replaces it by a search in the history and I end up googling my search prefixed by the keyword : for example, I end up googling "enfr former", instead of translating "former" from engligh into french. (in my case, the search is the folowing name: enfr, keywoard: enfr, search: http://translate.google.fr/#en/fr/%s in the other search engines options) Chrome version: 21.0.1180.89 How do I restore the normal behavior (searching on the specified search engine instead of the default search) ? Update: I have seen that clearing browsing data while I did the search fixes the problem. But I am not sure if it wont reapear.

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• sticky bit on NFS file system

  - by Kris_R

  I have a system where to the main server (homes, nfs, ntp, queue...) can log-in only root – all the other users use front-end host with NFS-mounted home directories (RW) and all other software directories (read-only). My problem is, that time to time, if root or normal user with sudo makes some administrative works on front-end some homes of normal users getting sticky bits (drwsr-sr-x). If it happens usually the user can't log-in (as long as permission for his home are not changed to drwxr-xr-x). The last time I saw it after compiling some new software (normal user configure;make) and installation from the same directory as root (su and make install or direct as normal user sudo make install). Can somebody explain me why it happens and what should I do to get rid of this problem? p.s. I'm using CentOS 5.7

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• Has anyone seen an HTTP 500 error when HTTPS traffic going through Pound Proxy forwards to an HTTP page?

  - by scientastic

  We have Varnish as our load balancer and reverse proxy cache for normal HTTP traffic. For HTTPS traffic, we use Pound proxy to unwrap the SSL and forward to Varnish, which then forwards to the back-end servers. This is used for our "checkout" process to encrypt credit card info in transition. However, on the last stage of checkout, users are always getting an HTTP 500 (Internal Server) error. It doesn't seem to be due to our back-end app server, by all tests I've tried. Does anyone know anything about how that transition works-- the transition back from HTTPS to HTTP and the interaction between Pound and Varnish-- and why it might cause 500 errors?

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• Video Player/Library for Ubuntu with ratings and thumbs

  - by greggannicott

  Hi. I've just made the switch to Ubuntu on my main PC and I've been looking for a media player that can: Play all the usual video formats Rate (and ideally, tag) each file Display thumbnails for each file Other than that there isn't much I'm after. Banshee comes close, but doesn't display thumbnails. I've Google'd lots but I'm running out of search terms to try. Does anyone have any suggestions? Cheers!

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• My stereo headphones cable is broken, what can I do?

  - by ucas

  I have a pair of stereo headphones, I got them on Amazon. Now, the right headphone stops producing sound. To fix that I need to move/shake the tip of the cable (the one before that part of tip which goes inside the headphone jack on the laptop). But as time goes, this sort of fix helps less and less. It looks that the cable is a bit broken at the place where I shake/move cable. Is that the end of use of my headphones? Is that a reject of the device? Is there a way to fix it, for example, changing the very tip of the cable at the very end of it. Any advice on buying headphones?

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• Macro to copy values to new sheet and prompt user where they want to save

  - by MasterJedi

  I'm looking to create a macro in Excel 2007 which will do the following: copy the formatting and values from a sheet called 'report', insert this into a new workbook, naming the file with the value in 'B9' and appending the word 'report' to this when copying the data into a new workbook, the formatting of the original should be retained, but cell contents pasted as values rather than formulas prior to saving the file with the above name, the user will be prompted to choose their folder at the end, a message will be displayed alerting the user that the file has been saved successfully Any assistance would be much appreciated. Thanks. I have attempted to do this, but my experience with VBA is limited. Here is what I have done so far... Application.DisplayAlerts = False Worksheets("Report").Copy With ActiveSheet.UsedRange .Value = .Value End With ActiveSheet.DrawingObjects.Delete Set wbNew = ActiveWorkbook wbNew.SaveAs Application.GetSaveAsFilename wbNew.Close True Application.DisplayAlerts = True

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• Is there a way to make IE7 default to ms-image-mode:bicubic?

  - by Mark Ransom

  Internet Explorer 7 uses a rather crude method to resize images by default. There's a CSS tag img { -ms-interpolation-mode: bicubic; } to get better results, but I'm unable to change the source of the page. IE8 uses the better method as the default, but this is a corporate environment that is unable to upgrade at this moment. Is there anything in the options or a registry hack to change the default resizing mode in IE7?

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• Writing good looking documentation in pdf format on a mac [closed]

  - by Matthew

  I'd like to write some documentation that will be written in sections (1.1, 1.2, 2.1, 2.2, 2.3, etc). I'd like to use something that will generate the table of contents in the end or at least have it "linked" up so that when I make changes everything is still accurate (if I merge section 2.1 and 2.2 or something). The end result needs to be in pdf. I don't want to pay $350 for Acrobat Pro either... I've got microsoft word, but every little thing is a pain (for example, having one background of a page be a different color than another). Any ideas on how to create quality documentation in a pdf format?

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• Which type of memory is faster than average for server use?

  - by Tony_Henrich

  I am building a server computer which will be used for SQL Server and I am planning to use like 32G+ of RAM and putting the databases in memory. (I know all about data loss issues when power is gone). I haven't been up to date with the new types of memory sticks out there. What kind of memory should I get which is faster than average and not very expensive? I am buying a lot of ram so I am looking for memory that's above average but below high end if high end is very expensive. (I will be using Windows Server 2008 R2 Standard or Windows HPC Server 2008 R2)

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