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• How to backup in Fedora-13?

  - by Ramy

  I just bought a 1.5T HDD and a disk enclosure. I connected this disk to my laptop via the provided USB cable. I then used the following command: rsync -r -t -v --progress --delete -c -l -z / /media/C4E41A11E41A0678/Moonface_BKP/ I ran this for a long (long long) time when i noticed that what had been backed up to the HDD began to be backed up. In other words, when i ran the command, it created a /media directory and a C4... directory below that and kept recursively backing up this directory (since, I suppose, I was backing up the hard drive itself, too). So...what's the proper way to use rsync?

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• Does using a single cable to connect two switches create a bottleneck?

  - by Nick

  I realise this may be a stupid question for some, but it's something I've always wondered about. Let's say we have two gigabit switches and all of the devices on the network are also gigabit. If 10 computers connected to switch A need to transfer large amounts of data to a server on Switch B (at the same time), is the maximum transfer speed of each connection limited by the bandwidth of the connection between the two switches? In other words, would each computer only be able to transfer at a speed of one gigabit divided by the 10 machines trying to use the "bridge" between switches? If so, are there any workarounds so that every device can use it's maximum speed from point to point?

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• Page numbers in Word 2007

  - by ldigas

  I'm gonna skip the usual rant which normally follows upon mention of the words "Word 2007" I have a numbered section. Which has page numbers. Then, I insert a new section break at the end of the current section ... go to page numbers, format ..., and "start at ...", and the new section then has a new page numbering (starting with some other number). But, how do I after inserting a new section break, remove the page numbering in the new section ? If I go to remove page numbers option, Word removes the numbers from the new, but also from the old section (i.e. all of them). Help ... time is short ...

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• Spamassassin: How to delete all spam messages on the server?

  - by Beck

  Can't find out, how to configure spamassassin to delete all spam messages. Currenly it's only mark messages as spam, but pass them throught IMAP to client. How to block them from passing through to IMAP clients? http://spamassassin.apache.org/full/3.3.x/doc/Mail_SpamAssassin_Conf.html And it's blocking some of our notification messages... -1.4 ALL_TRUSTED Passed through trusted hosts only via SMTP 0.0 HTML_MESSAGE BODY: HTML included in message 2.4 HTML_IMAGE_ONLY_08 BODY: HTML: images with 400-800 bytes of words 2.9 TVD_SPACE_RATIO BODY: TVD_SPACE_RATIO 1.7 MIME_HTML_ONLY BODY: Message only has text/html MIME parts 1.1 HTML_MIME_NO_HTML_TAG HTML-only message, but there is no HTML tag 1.1 HTML_SHORT_LINK_IMG_1 HTML is very short with a linked image -1.4 AWL AWL: From: address is in the auto white-list This is what clients getting on their mails in place of our notification messages. Any idea how to pass those messages through and how to delete incoming spam? Thanks ;) I have this setup: postfix spamassassin clamav-daemon amavis

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• How to set the preferred network interface in linux

  - by Mike Cooper

  I have my network set up like this. http://docs.google.com/Doc?docid=0AZ1YxuLE4djaZGhqN2s1NmRfMjhjNjc0Ym1meg&hl=en In words: I have a machine (Calcium, running Arch Linux) that has two network interfaces. eth0 is hoooked up to a router, and is gigabit. Eth1 is hooked up directly to the university network over 10Megabit. The router's uplink is hooked up to the university network as well, and it is also 10Megabit. Currently (I believe) all traffic on Calcium is going through eth0, through the router, regardless of whether it is internal or external. (How can I confirm this?) Ideally, traffic that is destined for the internal network (192.168.10.0/24) would travel over eth0 to the router, and wherever it is going. ALL other traffic should go over eth1.

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• How does fail2ban 0.9 database storage actually works?

  - by Arantir

  Fail2ban 0.9 introduce database storage to save bans on restart. But I can't find out the actual mechanism of it work. There is dbpurgeage parameter which controls lifetime of old bans, defaults to 24 hours. As I see from code research, fail2ban saves a ban to the db with timeofban equals to the moment of ban being saved. Then every dbpurgeage period it removes all bans with timeofban < MyTime.time() - self._purgeAge, in other words removes all bans have been stored more than 24 hours ago. But what if an IP was banned for the month? Does all this mean that with dbpurgeage = 86400 after restart in 24 hours I will lost all bans longer than 24 hours? I just want that all my permanent bans will be preserved in any case.

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• auto-summarization: classful vs classless routing protocols

  - by yorble

  Suppose a router R1 is directly connected to the following subnets: 10.1.0.0/24 10.1.1.0/24 10.1.2.0/24 10.1.3.0/24 If it is running RIPv1, it will advertise: "i have the network 10.0.0.0" (implicitly understood by receiving RIPv1 routers as 10.0.0.0/8 because the protocol is classful) but suppose we changed the routing protocol to RIPv2 and turned ON auto-summarization. Would it behave in the same way? Would it advertise: "i have the network 10.0.0.0" (advertised WITHOUT subnet mask, and implicitly understood by other routers as 10.0.0.0/8) OR would it auto-summarize in a non classful way like: "i have 10.1.0.0/22" (advertised as network id and subnet mask pair) In other words, does turning on auto-summarization in RIPv2 (or other classless routing protocols) cause it to auto-summarize in a classful manner or simply auto-summarize classlessly to the best of its ability?

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• Good free OCR with GUI for correcting mistakes? (for Windows)

  - by Hugh Allen

  I've used SimpleOCR, which has a nice GUI for correcting mistakes. Unfortunately it makes a lot of mistakes! (and suffers other bugs and limitations) On the other hand Tesseract is more accurate but has no GUI at all. Is there a free OCR program for Windows which has a nice GUI and a low error rate? I want it to highlight suspect words (by OCR uncertainty, not just spell checking) and show the original (bitmap) word while I'm editing the OCRed word similar to what SimpleOCR does. Open-source would be best, followed by freeware, then trial / demo / crippleware a long way behind.

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• Two Tomcat SSL Providers & One FreeBSD

  - by mosg

  Hello everyone. Question: On FreeBSD8 I need to have two opened HTTPS different ports (443 and 444, for example). In other words, I need two providers, working simultaneously: Ordinary SSL signed certificate (# Thawte) on 443 port Special russian security provider (# DIGTProvider, based on CryptoPro CSP software) on 444 port I also have to mentioned, that the major provider is the 2'nd provider. Here is some of DIGTProvider options: add to ${JRE_HOME}/lib/security/java.security this line security.provider.N=com.digt.trusted.jce.provider.DIGTProvider ssl.SocketFactory.provider=com.digt.trusted.jsse.provider.DigtSocketFactory uncomment and edit in conf/server.xml HTTPS section: sslProtocol="GostTLS" (added) edit bin/catalina.sh and add: export LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:/opt/cprocsp/lib/ia32" export JAVA_OPTS="${JAVA_OPTS} -Dcom.digt.trusted.jsse.server.certFile=/home//server-gost.cer -Dcom.digt.trusted.jsse.server.keyPasswd=11111111" As I know if I just define in server.xml tomcat's configuration file two SSL connectors, tomcat would not start, because in JRE you can use only one JSSE provider. Thanks for help.

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• Dell Vostro 1000 w/fresh XP Pro installation running very slow

  - by ssvarc

  I'm working on a Dell Vostro 1000 laptop. It was running slowly and hanging, antivirus scans turned up nothing and the same with the Dell diagnostics (DFT hung - but Dell's diagnostics gave the HD a pass) so I imaged the HD and installed XP Pro on it. The laptop is still slow! (It takes a noticeable delay to enter words into the Google search box in IE and the computer hangs every time it enters the XP screensaver.) What are the likely possibilities at this point and how would I go about checking for them?

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• MAC and IP adress text-identicon as avatar

  - by rubo77

  I would like to create something like identicons but not with images but with a unique word for each IP-Adresses and MAC-Adresses. create an easy to remember alias for a mac address, that is unique and reverse lookupable, for example: IP 123.456.789.132 will result in an alias for that IP, that is connected to an existing word from a wordlist, that is unique. Background of this idea: this way we could identify our Routers in our Opennet in Hamburg easily in a graphical NodeGraph. Is there some site already, where I can convert MAC-Adresses to unique human readeable words?

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• Are there any statistics on the number of networks using Ethernet Jumbo frames?

  - by Russell Heilling

  I am often told by Sales Engineers and Product managers that a Layer 2 Ethernet service is not fit for purpose if the maximum supported frame size is in the 1518-1522 range (enough to support standard Ethernet frames or VLAN tagged frames). Or in other words: an MTU of 1500 is not enough (see this blog post for my definition of MTU and a short rant on how the term is often misused) I am never able to get any details from them on: a) What proportion of customers (Enterprise / SMB) require Jumbo frames b) What are typical expectations on frame size for Jumbos on WAN links? 1600, 2000, 9k, etc... I know that in Telco and Data Centre environments Jumbos are pretty common, but I am after some insight as to how common this is within Enterprise and SMB networks.

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• What is the best free software to learn touch-typing?

  - by gojira

  What is the best free software to learn touch-typing? Features it needs to have: should NOT display the keyboard layout on the screen! should give detailed statistics which actually measure progress (for which key do I have the highest error rate, graphs showing how typing speed improved over time, etc) should enable me to actually learn touch-typing in about one long weekend were I don't do much else than learning to touch-type. it would be very good if it were possible to load a text-file and the program will use words from the text-file for the exercises as well My goals are: at least same typing speed as I have now but which touch-typing, want to be able to look at the screen only when typing P.S.: EDIT: I forgot to mention, I'm using Win 7. And I know what the Dvorak and Colemak keyboard layouts are, but I'm not interested in them. My question was with respect to standard US keyboard layout.

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• Mouse cursor in Terminal?

  - by marienbad

  I use Mac OS X Terminal.app. But the answer to this would probably apply to any typical UNIX-ish terminal emulator in a graphical environment. Question -- what do I do to: Use my mouse cursor to click on a character-position in the current line of the terminal, and have the terminal's cursor jump to that spot? Typically, you have to hold down an arrow key to move to the correct cursor position. If you're pasting in a long string of text at the shell prompt, or working in an editor like VI, this can take a long time. I know editors have other navigation keys like jump-words, but I like my mouse cursor.

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• MASM Syntax Highlighting in C++ for Visual Studio 2010

  - by Ian Mallett

  So, I had Visual Studio 2010 Ultimate, and everything was great. However, I was confused, thought I wanted MASM, and installed the SDK. This causes strange problems for syntax highlighting. When I'm editing a C/C++ file, for instance, a lot of words (e.g., "data", "add", "sub", "mul", "div", "eax", etc.) are highlighted. At first, I thought I'd just learn to live with it, but it has gotten annoying. I could find nothing online, so, I deleted the MASM folder completely (method of uninstallation), uninstalled Visual Studio, and then installed it again. I firedit up, and the problem persists. Any clues? Thanks, Ian

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• good free OCR with GUI for correcting errors (for Windows)

  - by Hugh Allen

  I've used SimpleOCR, which has a nice GUI for correcting errors. Unfortunately it makes a lot of errors! (and suffers other bugs and limitations) On the other hand Tesseract is more accurate but has no GUI at all. Is there a free OCR program for Windows which has a nice GUI and a low error rate? I want it to highlight suspect words (by OCR uncertainty, not just spell checking) and show the original (bitmap) word while I'm editing the OCRed word similar to what SimpleOCR does: Open-source would be best, followed by freeware, then trial / crippleware a long way behind.

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• Sonicwall - dual WAN ports - switch from one to another

  - by Charles

  Hi, Folks! I'm using a SonicWall NSA 240 which has two WAN ports (T1 and Comcast) and the LAN port has a cable which connects to a switch. From the switch, several cables connect to other switches. The SonicWall doesn't have DHCP enabled; one of our domain controllers running Windows Server 2003 also functions as a DHCP server. Is there a way for a user in our network to change connection from T1 to Comcast as their ISP or vice versa? In other words, if a user is connected via the T1, can he/she somehow connect via Comcast instead? Thanks, in advance, for your help! Sincerely, Charles

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• Chatbot client and class modification

  - by blake

  ChatBot Class Modification: Modify the reply() method of the ChatBot class to recognize additional words and phrases. Part 1: Everyone must complete this section. When the userInput parameter value is: The reply method should return: how do I quit enter quit how do I exit enter quit how do I stop enter quit how do I ____ do you really want to do that how are you I'm fine how ______ I don't know Add two additional words or phrases to recognize and respond to. ChatBot Client Modification: Modify the ChatBot client application to loop until the end-user enters "quit". Here is my service class / ** * Java Chatbot Service class * @author Blake * 3/5/2012 */ /** * Default constructor. */ public class Chatbot { private String name; /** Users name */ private String introbot; /** Name of the Chatbot */ private String reply; /** Replies to the input of the string name and string introbot */ /** * Constructs mutebot object * @param mutebow - returns name of mutebot */ public Chatbot() { name = "MuteBot"; } /** * Changes Name * @param name - new name */ public void setName (String n) { name = n; } /** * Accesses name * @return a brand new name */ public String getName() { return name; } /** * Accesses introbot * @return name of mutebot */ public String introbot() { String intro = "Hello! My name is " + name; return intro; } /** * Accesses replay(String newuserinput) * @return introbot reply to user input */ public String getreply(String newuserinput) { String reply = "I'm just learning to talk"; if (newuserinput.equalsIgnoreCase("What")) reply = "Why do you ask?"; else if (newuserinput.equalsIgnoreCase("Why") ) reply = "Why Not"; else if (newuserinput.equalsIgnoreCase("How")) reply = "I don't know!"; else if (newuserinput.equalsIgnoreCase("Where") ) reply = "Anne Arundel Community College"; else if (newuserinput.equalsIgnoreCase("When")) reply = "Tomorrow"; else if (newuserinput.equalsIgnoreCase("how do I quit")) reply = "enter quit"; else if (newuserinput.equalsIgnoreCase("how do I exit")) reply = "enter quit"; else if (newuserinput.equalsIgnoreCase("how do I stop")) reply = "enter quit"; else if (newuserinput.equalsIgnoreCase("how are you")) reply = "I'm fine"; else if (newuserinput.equalsIgnoreCase("how do you do")) reply = "I am doing well"; else if (newuserinput.equalsIgnoreCase("how do I get out")) reply = "By going through the door"; else if (newuserinput.indexOf("how do I" ) ==0) { String substring = newuserinput.substring(8); reply = "do you really want to do that" + substring; } else if (newuserinput.indexOf("how" ) ==0) { String substring = newuserinput.substring(10); reply = "I don't know" + substring ; } return reply; } } Here is my client/application class /** * Java Chatbot Client class * @author Blake * 3/5/2012 */ import java.util.Scanner; public class ChatbotClient { public static void main(String[] args) { Scanner input = new Scanner(System.in); Chatbot t = new Chatbot(); System.out.print("What is your name? "); String name = input.nextLine(); System.out.println(t.introbot()); System.out.print(name + "> "); String reply = input.nextLine(); System.out.println(t.getName() + "> " + t.getreply(reply)); //while (reply < quit) /*{ quit++ i = i + 1 }*/ } } I don't know what I am doing wrong with this part right here Modify the ChatBot client application to loop until the end-user enters "quit". I am trying to create a while loop which will continue until user says quit.

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• Author Tools for Classroom Material?

  - by user1413

  I'm interested in putting a whole bunch of classroom material online. This material ranges from accounting classes to yoga. I would like to find a simple to use authoring tool that the people who teach the classes can use to put the material online. In other words, I do not want a tool that requires a developer. A person who knows the subject matter and is willing to read the manual should be able to put their material online. At minimum, this tool should allow for text and multi-media to be chained together in a logical form and it should allow quizzes to be created and graded. Even better would be for the tool to have some "smarts" so that subject areas which the student does not understand can be drilled. Even better would be for the tool to have ecommerce built in so that the instructors can charge for the classes. Are there any such tools?

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• Mirror/Backup from SSH/SFTP to Windows

  - by Andrew Russell

  What I am trying to do is mirror a directory (recursively) from a server I can SSH/SFTP to, to a Windows machine. I want to do this as part of a script, so it can be automated. I only want to copy new or modified files. I don't want to have to download all the files every time the script runs. In other words, I'm trying to get the equivalent of RoboCopy /MIR that will work using SFTP as a source. What would you recommend?

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• How to block a program from using IPv4?

  - by Ian Boyd

  I have a program that can communicate over IPv4 (TCP and UDP) and over IPv6 (TCP and UDP). I want to block the program from being able to use IPv4. I tried the Windows Firewall: Except it blocks IP sub-protocols (e.g. TCP, UDP, encapsulated IPv6, GRE), rather than blocking IPv4 itself. In other words, I need to block IPv4: IPv4/TCP IPv4/UDP IPv4/ICMPv4 IPv4/GRE IPv4/L2TP while allowing IPv6: IPv6/TCP IPv6/UDP IPv6/ICMPv6 IPv6/GRE IPv6/L2TP Can I block a program from using IPv4? Note: If it cannot be done, then don't be afraid to add that as an answer. There's no shame in giving the correct answer to a question.

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• How to Uninstall License key

  - by balexandre

  I have bought and updated my Win 7 Pro to Windows 8 Professional and it's great ... all in all, I wanna keep using Windows 8, but something went wrong with Visual Studio 2012 Professional installation and there is no way I can install the target version for .NET 4.0 and I really need this to comply with old projects without affecting all the other developers. I do have an official license key bought when installing Windows 8, my question is, now that I need to format Install Win 7 Pro Upgrade to Win 8 Pro how do I make sure my next activation is successfully? In other words, how can I, not change, but remove my license so I can re-use it again when everything is fresh and updated

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• Syslog permissions

  - by Niels Kristian

  I'm using the $InputFile facility in rsyslog to monitor various log files scattered around my ubuntu 12.04 server. E.g. nginx, unicorn, rails, postgres, cron etc. Now my problem is, that some of these log files are created with -rw-r----- right, so rsyslog doesn't have read rights. Since I install most of the programs using apt-get, and therefore didn't change anything from default. So, in other words, I would like not to modify every singe log file / daemon to have the right permissions, if I instead could give syslog read access to all of them at once. But the question is - can I do that, and is it the "right thing to do"?

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• Good scanner to buy as of January 2010

  - by AlexV

  I'm planning to buy a scanner soon and since I didn't purchased one in years I wanted to know which brand / models are the "best". The ability to scan negatives is a nice to have but not 100% required. If you are specifing a model in particular, plase note that it must work under 64-bit OS (I'm using Windows 7 Ulitmate 64-bit). I'm not looking for a all-in-one solution like scanner/fax/printer. I want to use this to scan "old" photos from the non-digital era :) And sometimes to scan magazines and books. I am located in Canada it would be nice if your suggestion is available here. I usually buy online at NCIX and DirectCanada if it can help you see what's available there. Edit: My search leaded me to 2 particular models. I hesitate between Canon CanoScan 8800F and Epson V600. Anyone have good/bad words on either of them?

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• Combo ports and SFP

  - by Tahir

  I have Netgear GSM7324s prosafe switch. Switch has 24x1G ports. 4 ports are labeled as combo ports while 2 are labeled as SFP ports. I connected 2 PCs (each having 1gig and 10Gig NICs), with the switch using 1 & 10 Gig cables. Whenever, I ping the PCs the pinging is not working. As soon as, I removed the 10G cables, the ping starts working. Can someone please explain that what's going on. Also it would be very helpful if you can tell me the concept of combo ports, SFP ports in easy words?

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