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• Dividing with Gnu's bc

  - by Boldewyn

  I'm just starting with Gnu's bc and I'm stuck at the very beginning (very discouraging...). I want to divide two numbers and get a float as result: $bc bc 1.06.94 Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006 Free Software Foundation, Inc. This is free software with ABSOLUTELY NO WARRANTY. For details type `warranty'. 15/12 1 15.0/12.0 1 15.000000/12.000000 1 scale(15.00000) 5 The man page says, that division returns a number with the same scale as the initial values. Obviously this is either not true or I'm missing something. Googling hasn't brought up any new insights (besides that 'BC' can also stand for 'British Columbia'). Do you see my error? Better yet, do you know any good references/tutorials to bc?

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• CentOS Can't connect to FTP

  - by Steven

  I'm having troubles connecting to my ftp server. Here's what it says, Status: Connected Status: Retrieving directory listing... Command: PWD Response: 257 "/home/sxxxn" Command: TYPE I Response: 200 Switching to Binary mode. Command: PASV Error: Connection timed out Error: Failed to retrieve directory listing My vsftpd.conf file: local_enable=YES write_enable=YES local_umask=022 dirmessage_enable=YES xferlog_enable=YES connect_from_port_20=YES ftpd_banner=Welcome to xxxx.com xferlog_std_format=NO chroot_local_user=NO chroot_list_enable=NO chroot_list_file=/etc/vsftpd/chroot_list listen=YES pasv_enable=YES pasv_min_port=3000 pasv_max_port=3050 pasv_address=64.xx.xx.xxx pam_service_name=vsftpd userlist_enable=YES userlist_deny=NO userlist_file=/etc/vsftpd/vsftpd.userlist And I've got these 2 in my iptables -A INPUT -p tcp -m tcp --dport 21 -j ACCEPT -A INPUT -p tcp -m tcp --dport 3000:3050 -j ACCEPT I've also disabled selinux.

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• Touchpad not working after login in Ubuntu

  - by Maria Mateescu

  At some point my touchpad stopped working on Lenovo x220 under Ubuntu 11.10, after login. I have found two possible solutions for that online, but neither of them work. First, gconftool-2 --set --type boolean /desktop/gnome/peripherals/touchpad/touchpad_enabled true and a second one, xinput set-int-prop "SynPS/2 Synaptics TouchPad" "Synaptics Off" 8 0 After looking more carefully into xinput I have realized that xinput list-props "SynPS/2 Synaptics TouchPad" outputs: Device Enabled (132): 0 This field seems to be stuck to zero, because trying to set it back to 1 by: xinput set-int-prop "SynPS/2 Synaptics TouchPad" "Device Enabled" 8 1 doesn't seem to have any effect, e.g. I still have: Device Enabled (132): 0 Any ideas? Thank you!

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• Setting Up Customer-Specific Domains

  - by GregT

  I can go to Fog Creek's web site, setup a new account, and they will instantly assign me a URL such as 'mycompany.fogbugz.com' (where 'mycompany' is something I make up, as opposed to some value assigned by Fog Creek). I can do the same type of thing with Beanstalk and many other vendors. I have been Googling around trying to figure out exactly how this works. 1: In the above example, is 'mycompany.fogbugz.com' set up in DNS in some special way other than how one would setup a vanilla 'www.foo.com' domain? 2: Assuming Fog Creek uses Tomcat (which I am sure is NOT true, but pretend it is) would they be likely to have created a tomcat/webapps/mycompany subdirectory on their server? Or is there some simpler way to handle this? I'm obviously not a DNS or TC wizard. Any insight appreciated. Happy New Year!

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• Are there any program for showing tooltip via OCR

  - by Casper

  Edited for clarification based on comments: At work we have an old developed program where I need to navigate on a very long dropdown list only with numbered codes. To select the correct code, I manually look at an excel list that shows the code and the name each codes corresponds with. To make matters worse, it is not possible to type in the dropdown box (only first character is recognized when typing) So my question is: Are there any program which can show the text from a predefined list, when i mouseover the various possibilities in the dropdown list? The purpose would be to be able to identify the name which corresponds to each code, without having to look at the excel list. Thanks in advance!

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• VPN Authentication Credentials (Local/Remote Identifiers) For Remote Access VPN

  - by thatidiotguy

  So I am trying to set up a remote access VPN using the free ShrewSoft vpn client: https://www.shrew.net/software I want to use a PSK as the authentication mechanism combined with XAuth so that a connection requires a valid username/pass combo. Under the authentication tab this particular VPN Client however is asking for a Local Identity and a Remote Identity. The options for Local Identity Type are: Fully Qualified Domain Name User Fully Qualified Domain Name IP Address Key Identifier The options for Remote Identity are: Any Fully Qualified Domain Name User Fully Qualified Domain Name IP Address Key Identifier My current thinking is that I can use the Fully Qualifed Domain Name provided by the remote firewall for the Remote Identity, but I do not know what it wants for local identity. Just to stress: I am not trying to set up a site to site VPN. Can anybody shed any light on what I am missing here? A screenshot can be provided if that would be helpful. The current error I am getting during the connection is: IKE Responder: Proposed IKE ID mismatch

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• How to Detect that Current (Bash) Shell is a (Vi/Vim) Subshell?

  - by Jeet

  From inside Vi/Vim, I can type: :shell to drop into a shell. Is there any way to detect that I am in a Vi-spawned subshell? The environmental variable SHLVL is 2, but that does not tell me explicitly that I am in a Vi/Vim-spawned subshell. On OS X, the following variables are also set: MYVIMRC, VIMRUNTIME, VIM. How universal are these? Can I count on these being set in any system, if and only if I am in a Vi/Vim subshell? If not, is there any portable, robust and hopefully efficient way to tell that I am in a Vi/Vim subshell? Thanks.

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• Delivery Status Notification (Relay) in Exchange Server 2007 with original email attachment

  - by Nick Kavadias

  I have recently setup Exhchange Server 2007. The server is smarthosting outgoing messages. Users have 'request delivery receipt' on by default their 'auditing' purposes in Outlook. They would like the original email attached to the delivery notification as was the case in Exchange Server 2003. I need this same functionality in 2007. The question has been asked here, here and here but cannot find a valid solution. Here's some information about the functionality in Exchange 2003. The question is, can i replication this functionality in 2007? Here is what a 2007 delivery message looks like: I know it's possible to customize DSN's. Can I make a custom DSN for this type of message and have the original included as an attachment? Anyone got any other ideas?

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• A Service specific error occured:1 on trying to start apache 2.0 server.(Windows 7)

  - by user2297366

  I installed apache on my computer(localhost) and it worked fine. Then I went to download some other stuff and later noticed that the apache server stopped. So I went to command prompt(as administrator) and typed net start apache2. It says The Apache2 Service is starting. But before it finishes, I get the error A Service Specific Error Occurred: 1. It says that you can type in something for more info, but that doesn't help at all. Things I have tried: 1: Quit Google Drive Sync 2: Quit any and all programs using port 80(port my server is on) 3. I even tried changing the port of the server and got same error message, so I don't think it has anything to do with something else being in the port. None of those things have worked. I am confused at why it worked earlier, but now it won't work. Any help is greatly appreciated.

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• Looking for a way execute a task on all files in a directory (recursively) on Windows

  - by stzzz1

  I have a huge number of mp4 video files that needs to have a volume boost. I need a way to execute a ffmpeg audio filter on all files in a specified base directory (and in subdirectories as well). My problem is that I'm working on a Windows computer and I have no knowledge of its shell syntax. I would like to do the equivalent of what this bash script does : TARGET_FILES=$(find /path/to/dir -type f -name *.mp4) for f in $TARGET_FILES do ffmpeg -i $f -af 'volume=4.0' output.$f done I spent quite some time this afternoon looking for a solution but the recursive nature of what I need (that is so simple with find!) isn't too clear. Any help would be greatly appreciated!

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• Which interface defines the physical address of a Dialup connection

  - by Debabratta

  I use dial up connection to connect to the Internet. When I type ipconfig/all in the command prompt it shows me a physical address along with description for the dial up connection. The description field shows WAN(PPP/SLIP)Interface. I want to know upon which this physical address depends? It depends on my computer or ISP. On changing my ISP, physical address for this dialup connection will change or remain same? Please give some idea.

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• Which GUI Toolkit was used for TuneUp Utilities and Avast ?

  - by vettipayyan

  There are arguments supporting and discouraging the use of TuneUp Utilities . However , their User Interface is a really good one and i can't find out what gui toolkit they've used .... I wonder this for Avast too... I'm using PyQt for my image processing app and trying to improve the look and feel which is essential for it. But i can't find these type of custom styles etc... If you've suggestions tell me. It'll be helpful..

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• Component MSINET.OCX or one of its dependencies not correctly registered: a file is missing or invalid

  - by tintincute

  Hi can someone please help me. I'm using win7 64Bit and I'm trying to download this program "Croque-Mort" But when I do, I'm getting an error: "Component MSINET.OCX or one of its dependencies not correctly registered: a file is missing or invalid" I tried to check it by opening my cmd.exe and run as administrator and then type : regsvr32 msinet.ocx Then I got an error: "The module "MSINET.OCX" failed to load. Make sure the binary is sorted at the specified path or debug it to check for problems with the binary or depenedent .DLL files. The specified module coudl not be found" Is there a way to install this component? Would appreciate your help

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• mod_rewrite only one extension

  - by Matthias Reisner

  Currently I'm having the following htaccess content: <IfModule mod_rewrite.c> RewriteEngine on RewriteRule ^(.*).html$ $1.php </IfModule> I want to change the php extension to html. Now if I browse for localhost/xx.html I get the right content. BUT I also can use xx.php or xx to access the oontent! I only want to get the content if there is an html extension! How can I make this work??? Example: On the server I have the file foo.php. Now I want the user to type in foo.html in the browser to get the content of foo.php. But if he types foo.php there will be an error. I already tried this RewriteRule ^(.*)[^\.html]$ error.php RewriteRule ^(.*)\.html$ $1.php But that does not really work Thanks!

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• how to set up domain name, bad request invalid hostname

  - by user45645

  assume i have a domain name which will be forwarded to my public ip (web server) automatically. in IIS 6, ip is public ip port is 6666, advanced - host value is www.hello.com firewall is open for 6666(web server port) and 53(DNS port), DMZ of router is my physical address in DNS, i have already had a zone called oldhello.com. And i expect a new domain name. So i have addded a new zone called hello.com and checked SOA server (P) is one.hello.local. then added a new host called one, full name is one.hello.com, ip address 192.168.7.3(my address in router) and then add a alias(CNAME) www, full name is www.hello.com, FQDN i choose the host i added before (one.hello.com) i expected that when i type the public ip in browser, can it be changed to domain name automatically. if not set host value www.hello.com, use public ip i can see the web however, after set up host value www.hello.com, browser show bad request invalid hostname

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• Can I copy from vim to another window without +xterm-clipboard?

  - by GorillaSandwich

  I'm using Ubuntu and vim. I can copy text from vim and paste it into another window by highlighting it in vim, then middle-clicking in the other window. This works fine when I'm on my local machine. I can also copy into the system register by highlighting text and yanking to the system register. (For example, Shift-V JJ "+ y to go into linewise visual mode, highlight two lines, select the '+' register and yank.) It's then available to paste into other windows. However, if I ssh into my web host, I can't do either of these. (They use some flavor of Linux - I think it's CentOS.) In vim, if I type :version, my local version shows +xterm_clipboard, but the host's version shows -xterm_clipboard. I don't have sudo rights there. Is there any way to be able to copy from their vim without getting them to tinker with the installation?

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• How can I copy files to an external drive and verify their integrity in OS X?

  - by jedavis

  I'm moving large amounts of data from one external drive to another larger one. The files are important and the smaller drives need to be cleared and reused (HD camera). Is there some utility for moving files and verifying their integrity? I've been using this command find . -type f -exec md5 '{}' \; > md5list.txt in the terminal to create a list of MD5s for each file then using diff to compare the two. However, I am moving 320GB at a time, which takes a while by itself. Computing the checksums takes another hour or so. It would be much more efficient to do this on the fly, during the copy. I'm just hoping someone has already written the software...

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• How to download a URL as a file?

  - by Michelle

  A website URL has "hidden" some MP3 files by embedding them as Shockwave files, as follows. <span class="caption"><!-- Odeo player --><embed src="http://odeo.com/flash/audio_player_tiny_gray.swf"quality="high" name="audio_player_tiny_gray" align="middle" allowScriptAccess="always" wmode="transparent" type="application/x-shockwave-flash" flashvars="valid_sample_rate=true external_url=http://podcast.cbc.ca/mp3/sundayeditionstream_20081125_9524.mp3" pluginspage="http://www.macromedia.com/go/getflashplayer"></embed></span> How can I download the files for off-line listening? I've found two methods: 1. The Stack Overflow Method Create a new local HTML file with just the links, for example: <a href="http://podcast.cbc.ca/mp3/sundayeditionstream_20081125_9524.mp3">Sunday Edition 25Nov2008</a> Open the file in the browser, right click the link and File Save Link As. 2. The Super User Method Install the Firefox addin Iget. (Be sure to use the right version for your Firefox version.) Tools Downloads Enter URL in the field. Are there any other ways?

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• Is there a way to catch cmd.exe windows into tabs?

  - by user55542

  I use an editor that allows me to type in a command to run. In order to see the output without having to redirect it to a file, I precede the command with "cmd /k," which leaves an open cmd.exe window. So I'd like to find a way to move catch the call to cmd.exe and give it to an application that tabifies cmd.exe, a terminal emulator as it's called. The desired result would be similar to what happens in a tabbed editor, when that editor is to open some file, it does so in another tab, and not in another window. While in a given situation it may be easier to modify the command to redirect output to display in the editor itself, in general it would be more helpful if I could find a way to catch all such calls into one window.

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• Advice for an EC2 Architecture and Deployment Strategy

  - by Mark

  My company is currently migrating several websites and PHP web applications (standard LAMP stack) from three in-house servers to Amazon EC2. Because we had only three servers, we clustered several low-traffic websites with perhaps one high-traffic web application, and served them from the same server. The server admin has pretty much copied the previous architecture wholesale onto the EC2 instances, simply upping the instance size to account for the highest traffic client that occupies that particular instance. This architecture might be okay if it wasn't for deployment. Any time one of these sites/apps changes, it means redeploying the entire instance, along with the 30 sites/apps it hosts, instead of just updating one. How can we architect our cloud in a more modular fashion? Should each app get its own appropriately-sized instance? What is the best strategy for deployment in this type of situation?

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• Dangers of the pyton eval() statement

  - by LukeP

  I am creating a game. Specifically it is a pokemon battle simulator. I have an sqlite database of moves in which a row looks something like: name | type | Power | Accuracy | PP | Description However, there are some special moves. For said special moves, their damage (and other attributes not shown above, like status effects) may be dependant on certian factors. Rather than create a huge if/else in one of my classes covering the formulas for every one of these moves. I'd rather include another column in the DB that contains a formula in string form, like 'self.health/2'(simplified example). I could then just plug that into eval. I always see people saying to stay away from eval, but from what I can tell, this would be considered an acceptable use, as the dangers of eval only come into play when accepting user input. Am I correct in this assumption, or is there somthing i'm not seeing.

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• How can I import a CSV file into an SQLite table that doesn't allow null values?

  - by Philip

  I've been using the SQLite Manager extension for Firefox to edit my Chrome web data file in order to restore my keyword searches, and I think I have everything in place except that when I import a CSV file into a table, (a) it won't import into the actual table because the table doesn't allow null values (b) if I import it into a new table that does allow null values, then all the empty strings end up as null and I have to manually edit the row, type and delete a character, and then it's set to empty string and it's fine So: is there either a way to import the CSV so that empty cells are automatically turned into empty strings instead of null, OR is there a way once a table is imported that has null values to convert it into one that doesn't allow null values, where each formerly null value is the empty string? Thanks!

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• Have start menu index applications in places other than program files?

  - by user74757

  I love the ability to type any phrase into the start menu, and Windows 7 will bring up relevant executables under Program Files. However, I have a separate folder of my own where I store several portable applications - usually small apps that run straight out of an unzipped folder with little dependency. I have all of these under a specific hard-coded location - "PortableApps", but I would really like to tell the start menu to search this folder as well as Program Files for executables when searching. The search is often clogged because the executables I'm looking for are classified under "Documents" in the search results and buried in other non-related files. Is there a way I can achieve this in Windows 7? Thanks for any suggestions - Chase

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• Tracking my home IP from anywhere on the internet?

  - by oKtosiTe

  I have an ISP that serves semi-permanent IPv4 addresses. They can't promise fixed IP addresses, but unexpected changes are quite rare. This begs me to ask however: what would be the easiest/most reliable way to track my home IP address so I can access my (Windows 7) home server even in the case of an address change? Please note: for reasons that I don't want to go in to, I'd like to avoid using any "dynamic DNS" type services. Instead I'd prefer some way to perhaps have the home server leave an occasional/triggered "address stamp" on a remote, off-site server (by SSH, HTTP post or similar, preferably over an encrypted connection).

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• How do I now access my site for an installation

  - by user4524

  I have just rented a virtual private server with DirectAdmin. I have an ip address, lets say its: 178.239.60.18 Now I have made a new domain on the server. It resides in a folder called: example. Now when I would like to acces this in a browser, I type in 178.239.60.18/example or 178.239.60.18:example But this does not work. What am I doing wrong? When I look at the DNS record it does say the the ip address for example is 178.239.60.18

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