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• Using Find, Grep, Awk, or Sed To Rename Server After Cloning

  - by ServerChecker

  My client tells me they have cloned a VM in VMWare of an Ubuntu Linux server. Now it's my job to get into all the files and find out what still has the old server name of "bishop" and change it to something else. Also, the IP address is changed and I need to search for that too. How would you typically use find, grep, awk, or sed to find these files and then change them rapidly? In the end, I want to make a Bash script. Of course, I'm not expecting you to tell me every file, but just want to know the technique for finding files with "x" in it and then switching that rapidly with "y".

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• OpenVPN, Great on Windows, VERY slow on Mac...

  - by Phsion

  Hello, I'm not really an IT Pro, but this seemed like the best place to ask this question... I have setup VPN networks in the past, for fun, and everything was great, but now I've set one up for my boss, and while my computers all work great, his Mac machines are almost too slow to work with. Its pretty much vanilla configs all around, anyone have any ideas? Its a TUN routing setup over UDP. Back Story: My boss travels a lot, and wants to be able to access all his files from the road, and is also pretty paranoid about security (even though knows almost nothing about computers). SO i figured a VPN would be the answer. I went with OpenVPN, but there are some other issues. The only ISP we can get in our area besides Dial-UP is a crappy Satellite provider, that doesn't offer public IPs unless your willing to pay, so while the computers and VPN setup are pretty vanilla, the routing and structure is strange to get around this limitation. Specs: Its OpenVPN2, and there are six machines using it (only three actually use it, the rest are my test machines), one Windows 7 laptop, two XP Desktops, one OS X 10.5 Desktop, one 10.6 Desktop, and one 10.6 Laptop. One XP Desktop sits at my house and acts as the server (6Mbs/2Mbs FIOS connection). One XP desktop sits at the office and hosts a webpage that will wake up the Main Mac Desktop from sleep, and also ping all the machines on the VPN and show their status. The main office mac (10.6) stays in sleep mode until it gets the Wake-On-Lan packet from the Office XP, and then it auto connects to the VPN and opens itself up. The reason for all this is the Satellite private IP crap means i cant directly access the office machines outside of the LAN, so everyone connects to my house first, then they talk to each other from there. The Wake On Lan weirdness is because my boss doesn't want to leave the main Mac on all the time, and making a quick and dirty webpage was the easiest way to send a Magic Packet from inside the LAN without confusing my boss. The VPN uses Client Config files to make static IPs for the client. The only thing i found in google was some changes to the VPN MTU settings (down to 1400) but no real help. Oh, and i forgot...all the windows machines just have OpenVPN start as a service. The Mac laptop uses tunnelblick (an OpenVPN GUI) and the Mac Desktops use OpenVPN in normal command line mode. Server Config: tun-mtu 1500 fragment 1450 mssfix 1450 management localhost #### port #### proto udp dev tun ca ####### cert ####### key ###### dh ###### server 10.8.0.0 255.255.255.0 ifconfig-pool-persist ipp.txt client-config-dir ccd route 10.8.0.0 255.255.255.252 client-to-client keepalive 10 120 comp-lzo persist-key persist-tun status openvpn-status log Client Configs (all are simple variations on this) tun-mtu 1500 fragment 1450 mssfix 1450 client dev tun proto udp remote ######## #### resolv-retry infinite nobind persist-key presist-tun ca ##### cert ##### key ##### ns-cert-type server comp-lzo verb 3

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• How can I make it difficult to install a new operating system on a certain computer?

  - by D W

  I want to host a website on a desktop computer running Ubuntu with a Windows virtual machine. I will give away the computer in exchange for a number of months of remote web hosting. I want to add some kind of lock (hardware or otherwise) so that the end users will have difficulty just reinstalling Windows and using the machine as they want, in contradiction to the contract. Ideally, I'd want the machine to die if reinstallation of the OS is attempted. It doesn't have to be completely insurmountable, but it has to be difficult enough to prevent casual reinstallation. Perhaps on bootup the system can check whether certain files exist on the computer and refuse to boot if they do not. I don't know if this is possible, but maybe BIOS is password protected, and searches for files before boot up. The files it looks for could be date sensitive, i.e. require remote replacement on a schedule.

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• local cache for NAS or network folder

  - by HugoRune

  I am planning to build a network attached storage (NAS) server. Is there a way to cache frequently acccessed files from the remote storage automatically on the local PC? (I am not looking for a way to sync whole folders like rsync, but rather something that automatically and transparently caches the last accessed 50 gb of files.) Ideally I am searching for something that caches writes as well as reads, since only one pc will be accessing the server (and one day of lost changes if the local cache is damaged would be acceptable) I looked into windows offline files, but as far as I could tell this requires manual interaction to disconnect the server or go into offline mode in order to use the cache. The server would probably be running Linux or freeNAS, the pc runs Windows xp, but could be upgraded to 7 if required.

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• Allow Incoming Responses Apache. On Ubuntu 11.10 - Curl

  - by Daniel Adarve

  I'm trying to get a Curl Response from an outside server, however I noticed I cant neither PING the server in question nor connect to it. I tried disabling the iptables firewall but I had no success. My server is running behind a Cisco Linksys WRTN310N Router with the DD-wrt firmware Installed. In which I already disabled the firewall. Here are my network settings: Ifconfig eth0 Link encap:Ethernet HWaddr 00:26:b9:76:73:6b inet addr:192.168.1.120 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::226:b9ff:fe76:736b/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:49713 errors:0 dropped:0 overruns:0 frame:0 TX packets:30987 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:52829022 (52.8 MB) TX bytes:5438223 (5.4 MB) Interrupt:16 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:341 errors:0 dropped:0 overruns:0 frame:0 TX packets:341 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:27604 (27.6 KB) TX bytes:27604 (27.6 KB) /etc/resolv.conf nameserver 192.168.1.1 /etc/nsswitch.com passwd: compat group: compat shadow: compat hosts: files dns networks: files protocols: db files services: db files ethers: db files rpc: db files netgroup: nis /etc/host.conf order hosts,bind multi on /etc/hosts 127.0.0.1 localhost 127.0.0.1 callcenter # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters /etc/network/interfaces # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static address 192.168.1.120 netmask 255.255.255.0 network 192.168.1.1 broadcast 192.168.1.255 gateway 192.168.1.1 The Url to which im trying to get a connection to is https://www.veripayment.com/integration/index.php When I ping it on terminal heres what I get daniel@callcenter:~$ ping https://www.veripayment.com/integration/index.php ping: unknown host https://www.veripayment.com/integration/index.php daniel@callcenter:~$ ping www.veripayment.com PING www.veripayment.com (69.172.200.5) 56(84) bytes of data. --- www.veripayment.com ping statistics --- 2 packets transmitted, 0 received, 100% packet loss, time 1007ms PHP Function in codeigniter public function authorizePayment(){ //--------------------------------------------------- // Authorize a payment //--------------------------------------------------- // Get variables from POST array $post_str = "action=payment&business=" .urlencode($this->input->post('business')) ."&vericode=" .urlencode($this->input->post('vericode')) ."&item_name=" .urlencode($this->input->post('item_name')) ."&item_code=" .urlencode($this->input->post('item_code')) ."&quantity=" .urlencode($this->input->post('quantity')) ."&amount=" .urlencode($this->input->post('amount')) ."&cc_type=" .urlencode($this->input->post('cc_type')) ."&cc_number=" .urlencode($this->input->post('cc_number')) ."&cc_expdate=" .urlencode($this->input->post('cc_expdate_year')).urlencode($this->input->post('cc_expdate_month')) ."&cc_security_code=" .urlencode($this->input->post('cc_security_code')) ."&shipment=" .urlencode($this->input->post('shipment')) ."&first_name=" .urlencode($this->input->post('first_name')) ."&last_name=" .urlencode($this->input->post('last_name')) ."&address=" .urlencode($this->input->post('address')) ."&city=" .urlencode($this->input->post('city')) ."&state_or_province=" .urlencode($this->input->post('state_or_province')) ."&zip_or_postal_code=" .urlencode($this->input->post('zip_or_postal_code')) ."&country=" .urlencode($this->input->post('country')) ."&shipping_address=" .urlencode($this->input->post('shipping_address')) ."&shipping_city=" .urlencode($this->input->post('shipping_city')) ."&shipping_state_or_province=" .urlencode($this->input->post('shipping_state_or_province')) ."&shipping_zip_or_postal_code=".urlencode($this->input->post('shipping_zip_or_postal_code')) ."&shipping_country=" .urlencode($this->input->post('shipping_country')) ."&phone=" .urlencode($this->input->post('phone')) ."&email=" .urlencode($this->input->post('email')) ."&ip_address=" .urlencode($this->input->post('ip_address')) ."&website_unique_id=" .urlencode($this->input->post('website_unique_id')); // Send URL string via CURL $backendUrl = "https://www.veripayment.com/integration/index.php"; $this->curl->create($backendUrl); $this->curl->post($post_str); $return = $this->curl->execute(); $result = array(); // Explode array where blanks are found $resparray = explode(' ', $return); if ($resparray) { // save results into an array foreach ($resparray as $resp) { $keyvalue = explode('=', $resp); if(isset($keyvalue[1])){ $result[$keyvalue[0]] = str_replace('"', '', $keyvalue[1]); } } } return $result; } This gets an empty result array. This function however works well in the previous server where the script was hosted before. No modifications where made whatsoever Thanks in Advance

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• Receiving "May not have permission to edit" warning, even though I have permissions

  - by Choy

  I'm using Panic Transmit as an FTP client connecting to an Ubuntu 12.x server. When I try to edit and upload a file using it, I receive the warning that tells me to check my permissions as I may not have permissions to edit a file. I'm not setting the permissions on upload and I do have permission to edit files. After clearing the warning and checking the file on the server, may changes go through. The files I'm trying to edit are set to 775 and are part of the www-data group which my user is part of as well. Any idea why I would be getting such a prompt? This only happens on some files, not all.

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• IIS 7.5 default permission - is restriction needed?

  - by Caroline Beltran

  I am using IIS 7.5 and I do not need to explicitly specify permissions for my ISAPI application to execute. Additionally, the application can create subdirectories, create and delete files without me specifying permissions. Since I am using the default permissions, checked to see if web.config was safe from prying eyes over the web, and it can’t be read which is good. My app also creates some .log and .ini files which are also not viewable over the web. I did notice that .txt files are viewable. I really don’t know how default permissions allow my app to do so much. Is this safe or do I need to lock down? To be honest, I don’t know what accounts to restrict. App details: My ISAPI has an ‘allowed’ entry in ISAPI and CGI Restrictions Folder and subfolders containing my application has ‘default’ permissions set. Application pool is using ‘classic’ pipeline mode and no managed code. Pass-through authentication in use. Thank you for your time

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• Local network cache of PHP and Apache2 on Win Server 2008 R2

  - by Ahmed Benlahsen

  Software configuration : I have a new server with Windows Server 2008 R2 installed via VMWare. I have installed Apache2.2, PHP5.2 and MySQL5.5 as separate packages. Issue : On my first installation of my application, all works great. When I updated some JS and CSS files and accessed my application again from a PC on local network, I got the old JS and CSS versions. When I access the same application on local server I got the latest versions of those files. Link of my application on local server is : http://localhost/BADIL Link of my application from local network is : http://LOCAL_SERVER_IP/BADIL I think that must be some cache but I don't know where. Maybe on Win Server 2008 R2 or on VMWare? The question is: Why, when I access my application on the server, everything works fine, but when I access the same application from a local network, I do not see the updated versions of JS and CSS files?

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• How can you make a Windows USB HDD Modify All for All Users

  - by David Allan Finch

  Hi, I use a USB HDD a lot between lots of different Windows Boxes. What I find after a while is that there get to be lots of different Permission on the files in some cases stopping me looking at files or removing them. They want Admin rights or even sometimes you need to put the disk back into the original machine with the original user. This is a right pain. Is there away of making the disk have Modify All for All Users and making this the default for all files on the disk. Thanks

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• OS X Lion: Emptying the trash takes "forever": is using rm -r safe?

  - by EOL

  Emptying my Trash in OS X Lion (non securely) is taking about three hours (about 1.5 million files, from a Time Machine backup). I had to stop the process a few times already, because I could not move my laptop with the external harddrive the files are on. This is also a problem because the Trash emptying is restarted from the very beginning each time I empty the Trash again (i.e., files are not deleted when the Trash emptying is aborted). I read that it is faster to use rm -rf on ~/.Trash, in this case. However, is this safe? (I am afraid that does OS X Lion performs tasks behind the scenes—which would explain its slowness—that rm -r does not, which could lead to problems in the future.)

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• Make server unavailable gracefully using Powershell in ARR

  - by Carl Bergquist

  We are using ARR as reverse proxy and I would like to make a server unavailable for various reasons. How can this be done using Powershell? Edit 1: I found this http://blogs.iis.net/anilr/archive/2009/11/09/using-arr-config-extensibility-to-gracefully-stop-server.aspx tutorial for using JScript. But I'm not able to translate it to powershell. Edit 2: Using the Set-WebConfigurationProperty in WebAdministration module I'm able to changes settings for a server. I found SetState in %windir%\system32\inetsrv\config\schema\arr_schema.xml but I don't know how to invoke that method.

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• In SSIS Convert European Currency Format to United States Currency Format

  - by Rob

  I have an interesting problem. I have an SSIS package that processes account data. We are now processing files from Europe. These files are in a CSV format using text qualifiers. For an example of the problem: In the United States the currency format is 123456.99 (We purposely leave the thousands separator out). The files sent from Europe are coming in with two formats. One is 123456,99 and the other is 123.456,00. SSIS is attempting to parse the text file and place it into a NUMERIC(20,2) field. This causes a parsing error in SSIS even with the text qualifiers. If I change the field to CURRENCY it sends a conversion error. I would like for SSIS to deal with this directly without requiring the data to be in the United States format. Has anyone had this problem? Any help will be greatly appreciated. Rob

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• VMware vSwitches and Dell PowerConnect BPDU guard

  - by dunxd

  I am using two Dell PowerConnect 6248 switches to connect a VMware host vSwitch. A discussion of config of Cisco switches for use with VMware advises to set physical ports connected to vSwitch with bpduguard and portfast. However, Dell switches don't have the bpduguard setting for individual ports. I can switch it off globally for all portfast ports, but I don't think I want to do that. Should I: Disable STP on the vSwitch connected ports? Leave STP on and enable portfast on the ports, and forget about bpduguard? Disable bpduguard on all portfast ports via global config Do something else? See also: VMware vSwitches and spanning tree

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• Converting a bunch of MP3s to mono?

  - by Wil

  I have a bunch of stereo MP3s I'd like to convert to mono. What is the best way to do this? I would prefer something that would let be batch process them. I want to keep the quality as close to the original as possible. My files are also in different bitrates, so I don't want to make all files 320kpbs when some are only 128. Also, is there any quick way to see which files are stereo out of my entire library?

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• WYSIWYG editor for structured text (suitable for SVN versioning)

  - by chris_l

  I'm looking for an open source cross platform WYSIWYG editor that I can use to write documentation. I'm not looking for a web based solution - i.e. it should work without a web server, and I want to save my files directly to disk. The result could be any structured format, like Wiki markup, ReStructuredText, DocBook, or a small subset of HTML, ... But it's important, that Subversion diff can be used to see differences between the versions easily (this wouldn't work with .odt or .rtf files for example) I'm currently thinking about using Open Office, and saving the files as HTML, but is there a better solution?

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• How can I exceed the 60% Memory Limit of IIS7

  - by evilknot

  Pardon if this is more stackoverflow vs. serverfault. It seems to be on the border. We have an application that caches a large amount of product data for an e-commerce application using ASP.NET caching. This is a dictionary object with 65K elements, and our calculations put the object's size at ~10GB. Problem: The amount of memory the object consumes seems to be far in excess of our 10GB calculation. BIGGEST CONCERN: We can't seem to use over 60% of the 32GB in the server. What we've tried so far: In machine.config/system.web (sf doesn't allow the tags, pardon the formatting): processModel autoConfig="true" memoryLimit="80" In web.config/system.web/caching/cache (sf doesn't allow the tags, pardon the formatting): privateBytesLimit = "20000000000" (and 0, the default of course) percentagePhysicalMemoryUsedLimit = "90" Environment: Windows 2008R2 x64 32GB RAM IIS7 Nothing seems to allow us to exceed the 60% value. See attached screenshot of taskman.

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• Setting up fail2ban to ban failed phpMyAdmin login attempts

  - by Michael Robinson

  We've been using fail2ban to block failed ssh attempts. I would like to setup the same thing for phpMyAdmin as well. As phpMyAdmin doesn't log authentication attempts to a file (that I know of), I'm unsure of how best to go about this. Does a plugin / config exist that makes phpMyAdmin log authentication attempts to a file? Or is there some other place I should look for such an activity log? Ideally I will be able to find a solution that involved modifying fail2ban config only, as I have to configure fail2ban with the same options on multiple servers, and would prefer not to also modify the various phpMyAdmin installations on said servers.

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• All traffic is passed through OpenVPN although not requested

  - by BFH

  I have a bash script on a Ubuntu box which searches for the fastest openvpn server, connects, and binds one program to the tun0 interface. Unfortunately, all traffic is being passed through the VPN. Does anybody know what's going on? The relevant line follows: openvpn --daemon --config $cfile --auth-user-pass ipvanish.pass --status openvpn-status.log There don't seem to be any entries in iptables when I enter sudo iptables --list. The config files look like this: client dev tun proto tcp remote nyc-a04.ipvanish.com 443 resolv-retry infinite nobind persist-key persist-tun persist-remote-ip ca ca.ipvanish.com.crt tls-remote nyc-a04.ipvanish.com auth-user-pass comp-lzo verb 3 auth SHA256 cipher AES-256-CBC keysize 256 tls-cipher DHE-RSA-AES256-SHA:DHE-DSS-AES256-SHA:AES256-SHA There is nothing in there that would direct everything through tun0, so maybe it's a new vagary of Ubuntu? I don't remember this happening in the past.

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• How to quickly empty a very full recycle bin?

  - by Pekka

  I have deleted about half a million files from a folder, and didn't think to press Shift in order to delete them completely straight away. Now they're clogging my recycle bin, and Windows claims it will take 4 hours to empty it - it claims to do about 68 files per second. Is there some magic or an alternative method that can speed this up? Bounty - I'm starting a bounty. The files are still in my bin, as there was no pressing need to get rid of them and this way, I can try out the suggestions presented. I am, however, looking for a way that does not include hard-deleting the contents of the RECYCLER folder - I'm sure that would work, but it feels a bit unclean to me.

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• afp/smb transfers caps at 2 megabytes/sec, wireless N

  - by CQM

  I wanted to transfer files between two mac computers. The network is wireless-N and both computers have wireless-N modules in them. The problem is that when I transfer files between them, via file sharing (afp) the network speed caps at 2 megabytes/sec. Just downloading files from the internet I can get faster speeds, so this isn't a constriction of my wifi bandwidth, it appears to be a constriction of the protocol being used. My wifi-n is set to 130mbits, so I should see real world transfer speeds around 12-16 megabytes/sec I did this command on both computers sudo sysctl -w net.inet.tcp.delayed_ack=0 which is supposed to lower tcp overhead, but this did not affect it. How can I get the speed I am expecting?

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• second ip address on the same interface but on a different subnet

  - by fptstl

  Is it possible in CentOS 5.7 64bit to have a second IP address on one interface (eg. eth0) - alias interface configuration - in a different subnet? Here is the original config for eth0 more etc/sysconfig/network-scripts/ifcfg-eth0 # Broadcom Corporation NetXtreme BCM5721 Gigabit Ethernet PCI Express DEVICE=eth0 BOOTPROTO=static BROADCAST=192.168.91.255 HWADDR=00:1D:09:FE:DA:04 IPADDR=192.168.91.250 NETMASK=255.255.255.0 NETWORK=192.168.91.0 ONBOOT=yes And here is the config for eth0:0 more etc/sysconfig/network-scripts/ifcfg-eth0:0 # Broadcom Corporation NetXtreme BCM5721 Gigabit Ethernet PCI Express DEVICE=eth0:0 BOOTPROTO=static BROADCAST=10.10.191.255 DNS1=10.10.15.161 DNS2=10.10.18.36 GATEWAY=10.10.191.254 HWADDR=00:1D:09:FE:DA:04 IPADDR=10.10.191.210 NETMASK=255.255.255.0 NETWORK=10.39.191.0 ONPARENT=yes How would the resolv.conf file should change since there are two different gateways? Any other change needed?

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• NGINX + PHP FPM connect() failed (110: Connection timed out) while connecting to upstream

  - by Leonard Teo

  We're running a fairly large site using nginx and PHP-FPM and we're getting a lot of errors as the site load is quite high. We're getting "connect() failed (110: Connection timed out) while connecting to upstream"...upstream: "fastcgi://127.0.0.1:9000" Here's my config file for PHP-FPM. PHP-FPM: [www] listen = 127.0.0.1:9000 listen.allowed_clients = 127.0.0.1 user = nginx group = nginx pm = dynamic pm.max_children = 100 pm.start_servers = 20 pm.min_spare_servers = 5 pm.max_spare_servers = 35 pm.max_requests = 100 slowlog = /var/log/php-fpm/www-slow.log php_admin_value[error_log] = /var/log/php-fpm/www-error.log php_admin_flag[log_errors] = on What's the recommended config/number of servers/children for a high traffic site? We tried using Unix Sockets instead of TCP and got no noticeable improvements. Right now the errors are: connect() to unix:/var/run/php-fcgi.sock failed (11: Resource temporarily unavailable) while connecting to upstream...upstream: "fastcgi://unix:/var/run/php-fcgi.sock:"... Thanks, Leonard

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• HP Recovery Manager failed creating a backup disc

  - by Baehr

  I had to restore my computer (running Windows 7) back to its factory default, so I ran the HP recovery manager disc and chose to reformat my computer. Before doing this I was given an option to backup my current files to a DVD, and I did so; getting the confirmation of a successful DVD burn. Booting up my computer everything looks like it did when I first purchased it (like expected). But when I pop in the backup DVD and run the recovery EXE inside it, the application creates a directory inside C:\System Recovery Files which contains the empty directories: [(^_^)] and Program Data. So essentially what I'm getting out of this is a failure in creating a back-up. Which is not only confusing but incredibly frusterating. Is there any way that I can recover the files lost in the

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• File association for editing on a mac

  - by Agos

  I'm quite experienced with how file association works for opening files on Mac OS X. I recall reading somewhere that OS X keeps not only the information about which apps can open a file, but also which apps can edit a specific file type. I'm having problems with those applications (Coda, Espresso, Forklift, Flow) that have an “edit with external editor” feature, since issuing this command on HTML files opens them with Dashcode. Dashcode of course is not the current association for opening these files (Safari is), so it's clearly looking for apps that can edit HTML. Since I'd like to use TextMate as my editor in these cases, how can I set this preference?

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• If I split my harddrive, will a system restore delete it?

  - by AoiHana

  I split my 1TB HD from C drive and called it A. I put some files there to back up. I have now come to a point where I need to run a system restore with the discs that came with my computer. If I do a system restore and wipe C drive clean, will I lose the part of the hard drive that I split or will it remain intact and my files uncorrupted? This is a partition I created with windows myself, and dragged files over to it. Thanks!

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