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• Surgemail DNS lookup failure

  - by Spencer Ruport

  Just curious if anyone has any experience with Surgemail. I've set it up a couple times and never had an issue but my latest install keeps leaving outgoing messages in the queue with the error "DNS Lookup Failed". I double checked that the local DNS server is running and even tried switching the IPs to my ISP's DNS servers but still no go. [DNS] Ok(avge) Bad(avge) 76.227.63.137: 0(0.0s) 5(31.0s) 76.227.63.254: 0(0.0s) 1(0.0s) Anyone have any ideas why this might be happening?? Thanks.

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• Where do deleted items go on the hard drive ?

  - by Jerry

  After reading the quote below on the Casey Anthony trial (CNN) ,I am curious about where deleted files actually go on a hard drive, how they can be seen after being deleted, and to what extent the data can be recovered (fully, partially, etc). "Earlier in the trial, experts testified that someone conducted the keyword searches on a desktop computer in the home Casey Anthony shared with her parents. The searches were found in a portion of the computer's hard drive that indicated they had been deleted, Detective Sandra Osborne of the Orange County Sheriff's Office testified Wednesday in Anthony's capital murder trial." I know some of the questions here on SO address third party software that can used for this kind of thing, but I'm more interested in how this data can be seen after deletion, where it resides on the hard drive, etc. I find the whole topic intriguing, so any additional insight is welcome.

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• How does copy protection work?

  - by Yar

  Many programs refuse to go beyond a trial period. Even if they are trashed and then reinstalled, they 'remember' that the trial period has expired. Assuming no contact with a licensing server, what is the general way that most copy protection works? Do programs drop files in random folders on the hard disk that are hard to track down? I know there's no registry on OSX/Linux, but perhaps something similar... ? Or must it be a file/folder? I'm actually not curious from a hacking side but rather from the implementation side, but in any case the question is basically the same.

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• Where do deleted items go on the hard drive?

  - by Jerry

  After reading the quote below on the Casey Anthony trial (CNN) ,I am curious about where deleted files actually go on a hard drive, how they can be seen after being deleted, and to what extent the data can be recovered (fully, partially, etc). "Earlier in the trial, experts testified that someone conducted the keyword searches on a desktop computer in the home Casey Anthony shared with her parents. The searches were found in a portion of the computer's hard drive that indicated they had been deleted, Detective Sandra Osborne of the Orange County Sheriff's Office testified Wednesday in Anthony's capital murder trial." I know some of the questions here on Super User address third party software that can used for this kind of thing, but I'm more interested in how this data can be seen after deletion, where it resides on the hard drive, etc. I find the whole topic intriguing, so any additional insight is welcome.

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• Recommended apps for securing/protecting a new desktop machine install?

  - by Eddie Parker

  I'm hoping to harness the collective tips of superuser to gather recommended apps/configurations to keep a new desktop clean, virus free, and hopefully lower software rot. I ask because I've recently come across tools like dropbox, deepfreeze, returnil, etc, and I'm curious what other ones are out there to protect a new box. I personally am interested in Windows, but feel free to comment on whatever OS you'd like, freeware or otherwise. Ideally specify the OS in your answer(s). One answer per program please. Then, rather than duplicate posts, vote for the program if it is already listed. UPDATE: It's been noted that there are other questions similar to this one [1], so I'd ask that these answers focus on security and protection. [1] Related questions: http://superuser.com/questions/1241/what-are-some-must-have-windows-programs http://superuser.com/questions/1191/what-are-some-must-have-mac-os-x-programs http://superuser.com/questions/1430/must-have-linux-software http://superuser.com/questions/3855/must-have-networking-security-tools

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• Where does apache store initialization state for mod_proxy_balancer

  - by khoxsey

  I run apache2 on Ubuntu as a caching load-balancing reverse proxy in front of a group of application servers. I have noticed that the balancer maintains some state for some of the attributes visible in /balancer-manager such as whether an IP is enabled/disabled, load factor, etc. My site has periods of high (and low) usage, and recently as I added a new server to the working group I noticed that the load balancer picked up the new server but had it set to Disabled. I'm curious where that data is stored, and/or how it is initialized.

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• Tutorial for Quick Look Generator for Mac

  - by vgm64

  I've checked out Apple's Quick Look Programming Guide: Introduction to Quick Look page in the Mac Dev Center, but as a more of a science programmer rather than an Apple programmer, it is a little over my head (but I could get through it in a weekend if I bash my head against it long enough). Does anyone know of a good basic Quick Look Generators tutorial that is simple enough for someone with only very modest experience with Xcode? For those that are curious, I have a filetype called .evt that has an xml header and then binary info after the header. I'm trying to write a generator to display the xml header. There's no application bundle that it belongs to. Thanks!

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• setting up multi-mon windows + mac

  - by psychotik

  Ok this is a stretch, but I know of some Windows only software that does this so curious if there is something that does it on the mac too. I have 2 monitors and 2 development machines - a PC and a Mac Mini. I want to be able to view/control both concurrently (one on each monitor). The Mac only has DVI out, the PC has both and my monitors have both. Any suggestions on how I can do it? A solution involving KVM or software (VNC/remoting) is OK... Thanks!

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• Is there a Windows 7 add-on that will put the PID in the title bar of a window?

  - by Chris

  Occasionally I run many instances of something, like Chrome or Visual Studio. Rarely, but often enough to bug me, one of them gets hosed and starts to consume 100% CPU. I can fire up the task manager to see which process is using 100%, but if it just says chrome.exe or devenv.exe, I don't know which window is the culprit. I'd like to know before terminating the process, so I can activate the app and shut it down cleanly. The best I've found so far is to use Process Explorer's feature where I can right click a process and say "bring to front". But I am curious as to whether there is an app that will put the PID(s) right in the title bar of the window so I can tell which window matches the process. I am using Windows 7 64-bit.

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• Does HDMI cable "quality" actually affect transmission?

  - by TheDeeno

  I really don't want to pay a ridiculous price for a "name brand" HDMI cable if it doesn't really do anything for me. I'm just curious: now that most transmission is digital (packetized) is there such a thing as a "quality" cable? I suspect that if the cable works at all, I'm safe saying I have a quality connection. I just want to double check. Some of these reviewers complain that generic cables "create noise, lack bandwidth, can't handle X, etc". I'm skeptical of these reviews. If the logic for HDMI cables and quality can be applied to cables in general, please elaborate on that as well.

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• Repointing iTunes library from failed external drive to local drive

  - by Andy White

  Up until recently I had my iTunes library on an external drive, but the drive was beginning to act up, so as a precaution, I copied all the media files onto my local hard-drive. My external drive is now completely dead, so I'm in a situation where iTunes is still looking for the files on my F: drive, but the drive is gone, so the library references are now all broken links. A complete copy of the library is on my C: drive, so I'm curious what would be the easiest way to repoint my library to the media files on C:? Should I just clear out my library in iTunes and just import the files from C:? Or is there a more automatic way? I don't think I can use the "Consolidate Library" function in iTunes, b/c I no longer have access to the original library media files.

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• What is the purpose of a boot priority sequence or order in BIOS

  - by rbeede

  A BIOS provides multiple options for specifying an order/priority to search for boot devices. Is there really much of a purpose now to have to specify more than one possible boot device? It would seem to me it is only useful when popping in an CD/DVD to install an OS after which the common scenario is to always boot from the hard drive unless something is broken. I'm curious as to why not simply have 1 option/device to set in the BIOS and expect the user to press a key to do alternate boot instead? Is there still a scenario for having the BIOS try multiple devices in a configured order?

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• Tutuorial for Quick Look Generator for Mac

  - by vgm64

  I've checked out Apple's Quick Look Programming Guide: Introduction to Quick Look page in the Mac Dev Center, but as a more of a science programmer rather than an Apple programmer, it is a little over my head (but I could get through it in a weekend if I bash my head against it long enough). Does anyone know of a good basic Quick Look Generators tutorial that is simple enough for someone with only very modest experience with Xcode? For those that are curious, I have a filetype called .evt that has an xml header and then binary info after the header. I'm trying to write a generator to display the xml header. There's no application bundle that it belongs to. Thanks!

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• How to block access to websites on a linux box [closed]

  - by user364952

  I'm just curious how many ways people can come up with to block access to a website. I simply intended to block (my own) access to news.ycombinator.com to stop my productivity drain. The first two methods I thought of were editing the hosts file to resolve news.ycombinator.com to 0.0.0.0 or adding a rule to iptables. iptables -A OUTPUT -d news.ycombinator.com -j REJECT Disclaimer: I do realise that the above two methods are easily by-passable. Doesn't help this is my own machine. What other ways does the internet know?

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• whats the point of @localhost entries for a mail server

  - by radman

  Hi, After recently setting up a mail server I am now adding the users that I need. As part of the tutorial I followed I created root@localhost as an account and also a bunch of aliases (postmaster@localhost, webmaster@localhost etc). What is the point of having al these localhost addresses? it seems that no one can ever mail them directly... Also I am curious as to what targets I should include on my domain (like postmaster, root, webmaster etc) and what ramifications there might be for doing so?

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• OS X 10.6 Snow Leopard no longer mounting an external USB drive

  - by Brant Bobby

  I have a 1TB generic external hard drive containing a single HFS partition. I originally formatted this using Disk Utility and it worked fine. Now, for some reason, it's not auto-mounting when I start up. Using mount at the command line gives the following error: $ sudo mount /dev/disk1s2 /Volumes/Test /dev/disk1s2 on /Volumes/Test: Incorrect super block. ... but if I use the mount_hfs command it works fine, mounts, and is readable. $ mount_hfs /dev/disk1s2 /Volumes/Test/ fsck gives me an error about a bad super block: $ fsck /dev/disk1 ** /dev/rdisk1 (NO WRITE) BAD SUPER BLOCK: MAGIC NUMBER WRONG ... but fsck_hfs -fn /dev/disk1s2 doesn't find any problems and reports that the volume appears to be OK. In Disk Utility, the drive appears to have a single MS-DOS partition with a curious notice about how it appears to be partitioned for Boot Camp: I have the Boot Camp HFS driver installed in WIndows 7, and that OS sees the drive/partition normally. What's wrong with my disk?

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• Mac OS X vs. Windows mouse wheel scrolling

  - by Znarkus

  Mac OS X determines what area to scroll by the mouse position. Windows does this by what application is active. So I thought anyway. If Notepad++ is the active application in Windows, I can scroll underlying applications by placing the mouse pointer on them. But this seems like the only application with this behaviour. Windows Explorer (Win7) doesn't even allow scrolling in the side pane if the pane is not active. My question is, can this be controlled by developers, and why is Windows behaving like this? I am not about to make a Windows application, but as a developer this makes me curious (and annoyed).

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• How to contact an emergency service using only Internet?

  - by Vi.

  Suppose you are apart from the mobile or whatever phone (so can't call 112 or 911 or 999), but have have access to a computer with internet connection. How do you call/message an emergency service (of whatever country in hope they will route the request to the correct destination) using only Internet? Maybe there's some 911-like website or public SIP or whatever? Or better go to some chat/forum/StackExchange/whatever and ask somebody to make a call for you? (will users really believe?) /* 1. I'm not in any emergency, just curious. 2. I'm not sure on what SE site to ask this question. */

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• How to add the Windows defender into Windows Explorer's right click menu to scan a particular drive/folder/file on demand?

  - by avirk

  There is no option in Windows Explorer to scan a particular drive (or file) on demand by right clicking on it in Windows Explorer as we had in Windows 7 with Microsoft Security Essentials or like other antivirus solutions. I know we can run a custom scan for the particular drive or specific folder but that process is too lengthy and time consuming. The guide How to Add a "Windows Defender" Cascading Desktop Context Menu in Windows 8 explains how we can add Windows Defender in the desktop right click menu, so I'm curious, is there a way to add it in the Windows Explorer right click menu to launch a search whenever I need to?

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• HP ProLiant Smart Array "lock up" code 0x11

  - by ewwhite

  I've a ProLiant DL580 G7 server that experienced a storage subsystem failure during production. The system appeared available and responded to pings, but all I/O access stalled (the system load must have been 100+). The ASR did not trigger at the specified watchdog timeout. I had to force a reboot from the ILO. During POST, I received the following error: A controller failure event occurred prior to this power-up. (Previous lock up code = 0x11) I haven't pulled the ADU report yet, but I'm curious as to what this error actually means. I was not responsible for the the installation, but can see that the firmware is very old. But if there's anything else I should know about the error, I'd like to know for the post-mortem report. edit - I should add that the server had 95 days of uptime prior to the lock up.

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• Properly Hosting Multiple Sites on VDS

  - by Aristotle

  I'm going to be moving about 7-10 websites (5-8 with Databases - MySQL) onto our new Virtual Private Server. I'm curious what the best way to host many sites on a single server is though. Do I create a directory for each site immediately within my root directory, and then point the domain names for each site to http://123.123.123.123/siteDirectory - or is there a more appropriate way to do this? I'm very interested in maintining control over how many concurent connections each site can have at any given time - would I be able to do that on the directory-level, or am I required to limit the concurrent-connections to the VPS itself?

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• How can I configure a Linksys EA4500 + usb printer for network printing (without connect cloud)

  - by Larry Kyrala

  The documentation and classic firmware (2.0.37) for Cisco's Linksys EA4500 is a bit sparse on setup details. It says I can connect a USB-printer, but then goes on to try to sell "Connect Cloud" remote management software. I don't want that. I just want to know how to set this up with the existing advanced firmware. Is it possible? AFAIK, to setup a IPP or LDP printer, there is usually some kind of queue configuration on the server (i.e. the ea4500 in this case), but I can't find it in the firmware. I also have been unable to find any existing protocols from win7 or mac osx. (windows network share, IPP/LDP etc.) I'm curious if I need to have the "Storage" accounts active and connect to my router either via the local IP or router name. There's a lot of unknowns here; it would help to know how this particular router actually works.

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• Is anyone else using OpenBSD as a router in the enterprise? What hardware are you running it on?

  - by Kamil Kisiel

  We have an OpenBSD router at each of our locations, currently running on generic "homebrew" PC hardware in a 4U server case. Due to reliability concerns and space considerations we're looking at upgrading them to some proper server-grade hardware with support etc. These boxes serve as the routers, gateways, and firewalls at each site. At this point we're quite familiar with OpenBSD and Pf, so hesitant at moving away from the system to something else such as dedicated Cisco hardware. I'm currently thinking of moving the systems to some HP DL-series 1U machines (model yet to be determined). I'm curious to hear if other people use a setup like this in their business, or have migrated to or away from one.

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• Next generation of command shells?

  - by ignatius

  I am curious about if there is any project about a replacement for the current unix-shells (like bash, ash, rsh ...), at least adding some new ideas or paradigm in this area. I was searching but i found very few information, this project http://en.wikipedia.org/wiki/Friendly_interactive_shell seems interesting, but not so diferent from the nowadays solutions. What do you think? Do you imagine a linux-distribution on 2020 that still having bash? How can be an evolution of this programs? Br To be clearer, about new ideas, i was talking of something like: control-Z functionality Colaboration features (like remote desktop) so you can invite someone to join and participate on your shell session Possibility to see the result of a command before to really apply it to your system (this is closely related with the 1st point ctl-Z) etc...

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• Mail Server using Postfix

  - by unknown (google)

  I have currently set up my web application on Amazon EC2 server. As a well known fact sending email from EC2 has a problem. As a cheap and long lasting solution instead of using "authsmtp" is it possible to rent a server and use it as a Mail Server? I am currently looking for cheap hosting which will give me root access so that it can be configured and used as a relayhost. I am curently using Postfix as MTA. Has any one implemented this before? I am curious about its feasibility of this solution. I guess common requirements are: Dedicated IP which is not black listed Open relay( open to my Server only) Any Tips for Header configurations to keep the mails out of spam folder. This is like exactly cloning authsmtp for personal use. Any suggestions for other Mail Server software instead of Postfix?

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