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• (Possibly) Corrupted DDCrypt self-decrypting file

  - by sca

  I recently discovered some files I had encrypted and archived on a CD using DDCrypt 2.0, which is a small encryption utility from back in the day. One of its functions is to create self-decrypting files, which are essentially EXE files that you can enter a password and then have the file extracted onto your filesystem. Unfortunately, I can't seem to get them to do this properly. They appear to be decrypting and then at the last moment I get the error: Error opening encrypted file C:\users\username\Temp\dde3cfa.tmp Reason: Success and then another dialog immediately says Error extracting ddc file. I'm not really sure what this means (certainly not success), but I've checked out the temporary file and it appears to be garbage data (although of the right file size). I don't know if anyone has an idea what might be done here to extract the files, or has dealt with a similar situation before. Any ideas are appreciated! Thank you in advance for your time and any help you can provide.

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• Hardware VPN suddenly slow, even after replacement. Free software VPN speed is fast [closed]

  - by Andrew

  In our company we have two remote users, one in Northern California and one in Texas, that connect via VPN. We have a hardware SSL VPN unit, and suddenly this week they experienced massive slowdown, to the point of speedtesting at 0.5 mbps when it is normally 7-10mbps. We replaced the hardware sslvpn but that did not solve the problem. If I have them connect using a free VPN tool like TeamViewer, their speeds are back to normal. Does anyone have any idea why this could happen? We have not made any infrastructure changes so this was very out of the blue and I'm confused as to why even replacing the hardware vpn didn't fix it, if using free software works just fine.

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• Having two FTP ports for the user

  - by user1663896

  I'm running vsftpd on RedHat 6.4 using TLS/SSL on port 990. It works great. I have been tasked to have my VSFTPD server running on unencrypted port 21 as well. This gives my users to either use clear text FTP on port 21 or TLS/SSL on port 990. I have tried the following in my vsftpd.conf file and did not work. listen_port=990 listen_port=21 In my config file it has the following SSL parameters: chroot_local_user=YES ssl_enable=YES allow_anon_ssl=NO anonymous_enable=NO anon_world_readable_only=NO force_local_data_ssl=NO force_local_logins_ssl=NO require_ssl_reuse=NO Can VSFTPD run on port 21 and 990? Thanks in advanced.

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• Does a receiving mail server (the ultimate destination) see emails delivered directly to it vs. to an external relay which then forwards them to it?

  - by Matt

  Let's say my users have accounts on some mail server mail.example.com. I currently have my mx record set to mail.example.com and all is good. Now let's say I want to have mails initially delivered to an external service (e.g. Postini. Note that this is not a postini-specific question though). In the normal situation where my mx is set directly to my mail server mail.example.com, sending MTAs will of course look up my MX and send to mail.example.com. In my new situation I'd have my mx set to mx.othermailservice.com and emails would be received there. OtherEmailService.com will then relay the emails (while keeping the return-path header the same) to mail.example.com. Do the emails that are received at mail.example.com after be relayed from the other service "look" any different than emails that go directly to it as would be the case where the mx was set to mail.example.com?

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• Creating dynamic plots

  - by geoff92

  I'm completely new to web programming but I do have a programming background. I'd like to create a site that allows users to visit, enter some specifications into a form, submit the form, and then receive a graph. I have a few questions about this, only because I'm pretty ignorant: Is there a good framework I should start in? I know a lot of java, I'm okay with python, and I learned Ruby in the past. I figure I might use ruby on rails only because I hear of it so often and I think I've also heard it's easy. If anyone has some other recommendation, please suggest. The user will be entering data into a form. I'm guessing the request they'll be making should be one of a GET request, right? Because I don't intend for any of the data they're entering to modify my server (in fact, I don't intend on having a database). The data the user inputs will be used to perform calculations involving lots of matrices. I've written this functionality in python. If I use ruby on rails, should it be instead written in Ruby? Somewhere I've heard that you can either place the load of the work on your server or on the client's computer. Since the code performs heavy math, which option is preferable? How do I alter the setup to either make the client do the work or my server? Should I be using a "cgi-bin"? In the code that I have now, I use matplotlib, a python library, and then "show" the plot in order to see the graph. I specify the x and y limits, but I am able to "drag" the graph in order to see more data within the plot window. Ultimately, I want a graph to be shown on my site with the drag functionality. Is this possible? What if the client drags the graph so far, more computations must be made? Thanks!

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• How to prevent nginx from appending the location to root? [duplicate]

  - by simonszu

  This question already has an answer here: nginx location pathing issue 2 answers I want to serve an Icinga Webview via nginx. This webview should be accessible via myserver.com/icinga (as the debian autoconfig for apache will do). I have the following lines in my nginx config: location /icinga { root /usr/share/icinga/htdocs; index index.html; auth_basic "Restricted"; auth_basic_user_file /etc/icinga/htpasswd.users; } However, i get an error 404 and a log entry that says: *10 open() "/usr/share/icinga/htdocs/icinga" failed (2: No such file or directory), So it seems that nginx appends the location value to the root value. I think i figured it out how to prevent this some time ago, but i did not document it for myself and have forgotten how to do it. And now i can't fix it for myself. Can you tell me how to prevent this behaviour?

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• outlook iptables configuration

  - by mediaexpert

  I've a Debian mail server, but only the outlook users can't be able to download the emails. I've seen a lot of post about some kind of forwarding port configuration, I've tried some commands, but I don't be able to solve this problem, please help me. below INPUT and FORWARD iptables: Chain INPUT (policy DROP 20 packets, 1016 bytes) pkts bytes target prot opt in out source destination 60833 16M ACCEPT tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:143 state NEW,ESTABLISHED 18970 971K ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp spts:1024:65535 dpt:110 state NEW,ESTABLISHED Chain FORWARD (policy DROP 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 0 0 ACCEPT tcp -- * * 192.168.0.0/24 0.0.0.0/0 tcp dpt:110 0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 0 0 ACCEPT tcp -- * * 192.168.1.0/24 0.0.0.0/0 tcp dpt:110 0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:25 0 0 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:110

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• SharePoint 2010 MySites - Host on separate servers

  - by Chris W

  We're playing with the SP 2010 Beta ahead of a planned deployment later this year in an academic environment. We anticipate that the majority of traffic will be through MySites when everything is provisioned so we're looking at how we can plan our SP topology to scale nicely. An initial thought is to run the main portal on one server, host "Student" MySites on one server and "Staff" on another. Is it acutally possible to do this easily or are we going down a bad path? Specifically - can we have 2 different MySites site collections, each hosted on a dedicated server? If so, can we configure SharePoint to work out from the users's logon account type of user they are and route them to the correct server?

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• Setting differing ACLs on directories and files

  - by durandal

  Quick ACL question: I want to set up default permissions for a file share so that everyone can rwx all of the directories and so that all newly created files are rw. Everyone who is accessing this share is in the same group, so this isn't a concern. I have looked at doing this via ACLs without changing all of the users' umasks and such. Here are my current invocations: setfacl -Rdm g:mygroup:rwx share_name setfacl -Rm g:mygroup:rwx share_name My problem is that while I want all of the newly created sub-directories to be rwx, I only want newly created files to be rw. Does anyone have a better method to achieve my desired end-result? Is there some way to set ACLs on directories separately from files, in a similar vein to "chmod +x" vs. "chmod +X"? Thanks

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• How to go about designing an intermediate routing filter program to accept input and forward accordingly?

  - by phileaton

  My predicament: I designed an app, written in Python, to read my mail and check for messages that contain a certain digital signature. It opens these and looks for keywords. If the message contains these keywords, certain related functions area executed on the computer. It is a way I can control my computer from my cell phone without being there. I am still in the beginning stages and it can only currently remotely open and close applications/processes. The obvious issue is security risks. I hoped to spearhead that by requiring and checking for that digital signature. However, my issue comes when I'd like to make this program usable by multiple users. The idea is that the user will send keywords: username and password, for instance, to log into their personal email account and send messages to it to be parsed. Please ignore the security implications of sending non-encoded passwords through email. (Though if you could help me on that part I'd much appreciate it as well, but currently, that is not the scope of my question.) My issue is designing an intermediary process that will take an email/password to read an email and scan for those keywords. The issue is, that the program has to be accessing an email to read the email for the username/password! I have got myself into a loop and cannot figure out how to have this required intermediary program. I could just create an arbitrary email account and have that check for login-creds, but is there a better way of doing this than that? Also, is there a better way of communicating with a computer remotely than this? Especially if the computer is not a server and is behind a router with only a subnet ip? If I am asking this question in the wrong place, I deeply apologize. Any help would be much appreciated!

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• How to structure reading of commands given at a(n interactive) CLI prompt?

  - by Anto

  Let's say I have a program called theprogram (the marketing team was on strike when the product was to be named). I start that program by typing, perhaps not surprisingly, the program name as a command into a command prompt. After that, I get into a loop (from the users standpoint, an interactive command-line prompt), where one command will be read from the user, and depending on what command was given, the program will execute some instructions. I have been doing something like the following (in C-like pseudocode): main_loop{ in=read_input(); if(in=="command 1") do_something(); else if(in=="command 2") do_something_else(); ... } (In a real program, I would probably encapsulate more things into different procedures, this is just an example.) This works well for a small amount of commands, but let's say you have 100, 1000 or even 10 000 of them (the manual would be huge!). It is clearly a bad idea to have 10 000 ifs and else ifs after each other, for instance, the program would be hard to read, hard to maintain, contain a lot of boilerplate code... Yeah, you don't want to do that, so what approach would you recommend me to use (I will probably never use 10 000 commands in a program, but the solution should, at least preferably, be able to scale to that kind of massive (?) problems. The solution doesn't have to allow for arguments to the commands)?

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• LDAP loginShell on platforms with different paths

  - by neoice

  I'm using LDAP to deal with users and authentication across my network. I'm now adding FreeBSD hosts and have hit a problem with login shells. on Linux, shells tend to be in /bin/$shellname, so setting my login shell in LDAP to /bin/zsh works perfectly. on FreeBSD, /bin/zsh doesnt exist, I need to use /usr/local/bin/zsh. is there a solution to this? I imagine I might be able to make some sort of login-shell.sh script that LDAP passes out as the "shell" and then use the script to determine the actual shell for the user, but I'm not a fan of that idea. I'm using Debian and FreeBSD, both with a standard OpenLDAP/PAM/nss setup. edit: it looks like using /bin/sh and adding an exec $shell to .profile would "work", but that doesnt scale very well.

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• b43 Firmware Error when trying to install Ubuuntu 14.04 on XP Laptop

  - by WizardNo.7

  I know I'm an Ubuntu and Linux n00b, but I've been browsing the web for a few days searching for a solution, and none of the other b43 posts etc solve my problem. I am trying to install Ubuntu 14.04 on a Fujitsu Siemens Amilo Pro laptop(It's quite old yes, has about 30GB Hard Drive and I think 192mb of RAM) which currently has Windows XP installed(which I'd like to keep for the time being). I have downloaded the 32-bit Desktop ISO and used unetbootin to create a Live USB for this laptop. When I boot from USB, I arrive at the unetbootin Grey and Blue menu and pick either "Try Ubuntu without installing", or "Install Ubuntu". The menu goes away and an Ubuntu loadscreen showing UBUNTU and four dots which progressively change between white and orange. At about the second color changing cycle a white underscore symbol appears next to the fourth dot and flickers, and then I get the usual: [ 95.514833] b43-phy0 ERROR: Firmware file "b43/ucode5.fw" not found [ 95.514847] b43-phy0 ERROR: Firmware file "b43-open/ucode5.fw" not found [ 95.514855] b43-phy0 ERROR: You must go to http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware and download the correct firmware for this driver version. Please carefully read all the instruction on this website. After this I have to hard reboot or shut-down. I don't have a previous Linux install so cannot do the apt-get from my previous install. I cannot access the boot options menu by using F6 or similar. Any ideas? Thanks beforehand!

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• Graphing/charting of CPU utilisation [on hold]

  - by Peter

  So nagios can be good at graphing particular resource utilisation or other metrics, but I'm looking for a tool that can output a chart or other graphical representation of how much CPU time/CPU utilisation /all/ services on a server are currently consuming. I think New Relic could probably achieve this to an extent, but I was wondering if there was a popular open source app used for this. In case I am explaining this in a bad way, my actual problem is that I have a shared server with suexec enabled (ie. httpd cgi running under multiple user accounts). I'd like to know which users are using the most CPU during periods of the day.

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• Hide the ports in the url of a tomcat application

  - by S.M.09

  I have setup tomcat 6 on a server with several different instances which run on different ports For Eg: http://10.XXX.XXX.XXX:8080/myAPP1 http://10.XXX.XXX.XXX:8088/myAPP2 http://10.XXX.XXX.XXX:8082/myAPP3 and so on... These urls are available two the users using these and other applications Now I want to hide the ports on which each of the applications are running... So that the user could see only something like this http://10.XXX.XXX.XXX/myAPP1 http://10.XXX.XXX.XXX/myAPP2 http://10.XXX.XXX.XXX/myAPP3 What is needed to be done for this I have achieved this for one url (i.e. one port) using the firewall rules and redirect the request on HTTP 80 port to the port that tomcat is listening.. But I want such patter to appear for all the urls... How can I go about this? Specs HOST M/C : 64 bit OS: Linux Redhat Tomcat : 6.0

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• Automate setup of constrained kerberos delegation in AD

  - by Grhm

  I have a web app that uses some backend servers (UNC, HTTP and SQL). To get this working I need to configure ServicePrincipalNames for the account running the IIS AppPool and then allow kerberos delegation to the backend services. I know how to configure this through the "Delegation" tab of the AD Users and Computers tool. However, the application is going to be deployed to a number of Active Directory environments. Configuring delegation manually has proved to be error prone and debugging the issues misconfiguration causes is time consuming. I'd like to create an installation script or program that can do this for me. Does anyone know how to script or programmatically set constrained delegation within AD? Failing that how can I script reading the allowed services for a user to validate that it has been setup correctly?

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• How to automount a Truecrypt volume before login in Windows 7?

  - by nonoitall

  I have an external hard drive containing all my documents, and it is encrypted with a password via Truecrypt. I'd like my desktop computer at home to automatically mount the volume prior to my logging in (so that it can be used as my user folder) without asking me for a password. (Yes, the password can be saved in plain text on my desktop's hard drive - that's okay.) For the life of me, I can't figure out a way to do this that actually works though. Tried using the Task Scheduler to schedule a mount when the computer starts up, and it works, but the volume is only accessible by my user account after I log in. (Haven't tried every combination of users/options for the scheduled task, so maybe there's something else there I need to try.) Also tried adding a startup script for my user account that runs on login, which evidently is too late to set up the user's profile folder. Anybody ever successfully achieve this or something like it?

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• Two VPN connections from the same IP address

  - by Tayles

  I have set up a server running Windows Server 2008 which two remote users can dial into using a VPN connection. It works fine unless they are both in the same location, in which case only one of them can connect. I understand this is because the PPTP protocol cannot cope with two VPN connections from the same IP address. Is this correct? If so, what can I do about it? Please note that the remote location in question is a serviced office, so we're not in a position to change or play around with their router. Thanks!

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• OBIEE 10g premier support ends Mid 2013

  - by THE

  To give all OBIEE users a fair warning ahead of time. Please be aware that the Premier Support product lifecycle for Oracle Business Intelligence Enterprise Edition and Oracle Business Intelligence Publisher 10.1.3.4.x is ending in July 2013 as of the  lifetime Support policy. Oracle Business Intelligence Enterprise Edition and Oracle Business Intelligence Publisher 10.1.3.4.x will be in Sustaining Support phase. "Sustaining Support" does NOT include: New program updates, fixes, security alerts, and critical patch updates New tax, legal and regulatory updates New upgrade scripts Certification with new third party products/versions 24 hour commitment and response guidelines for Severity 1 service requests as defined in the Severity Level section in the Oracle Technical Support Policies document linked below. We are encouraging you to move to OBIEE 11gR1. For more details please see the following documents on My Oracle Support ( https://support.oracle.com):"Premier Support Ends Dec 31 2011 for Oracle Fusion Middleware 10g 10.1.2 & 10.1.4" (  Doc ID 1290974.1)

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• How to clean a computer with multiple accounts infected with spyware, viruses? [closed]

  - by DjKilla

  Possible Duplicate: What to do if my computer is infected by a virus or a malware? What's the best way to clean a computer with multiple accounts infected with spyware, viruses and malware? Should you install and run software to remove the infections on each account? If you install the software on one account, will it clean the entire computer including each account? For example, some programs like CCleaner will install only on one account and not offer the option for all users (accounts). Does this mean the program will clean the entire computer including other accounts or do I have to install CCleaner on each account to clean up each user's account?

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• Auto restart server if virtual memory is too low

  - by Sukhjinder Singh

  There are quite number of software running on my server: httpd, varnish, mysql, memcache, java.. Each of them is using a part of the virtual memory and varnish was configured to be allocated 3GB of memory to run. Due to high traffic load which is 100K, our server ran out of memory and oom-killer is invoked. We've to reboot the server. We have 8GB of Virtual Memory and due to some reason we cannot extend to larger memory. My question is - Is there any automated script, which will monitor how much virtual memory left and based upon certain criteria, lets say if 500MB left than restart the server automatically? I do know this is not the proper solution but we have to do it, otherwise we don't know when server will get OOM and by the time we know and restart the server, we lost our visiting users.

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• Losing file permissions after rebooting Windows 7

  - by SMTF

  I have a User directory full of files that are not accessible permission wise for the user who's home directory it is. Said user can't run Explorer. For example, it provides an error complaining that permission is not available for required files. I tried various ways to give said user permission of his home directory and things are fine until after rebooting the machine; the permissions reset to the previous state and the problem persists. I followed the solution outlined here. And again things worked until I reboot the machine. I'm in this mess because I replaced a corrupted user profile as outlined here. The original user and the new replacement on are/where both admin accounts. In case it is relevant I will mention that the Users directory is not on the C volume but a D volume on the same machine. Any insight is appreciated.

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• Type of AI to tackle this problem?

  - by user1154277

  I posted this on stackoverflow but want to get your recommendations as well as a user on overflow recommended I post it here. I'm going to say from the beginning that I am not a programmer, I have a cursory knowledge of different types of AI and am just a businessman building a web app. Anyways, the web app I am investing in to develop is for a hobby of mine. There are many part manufacturers, product manufacturers, upgrade and addon manufacturers etc. for hardware/products in this hobby's industry. Currently, I am in the process of building a crowd sourced platform for people who are knowledgeable to go in and mark up compatibility between those parts as its not always clear cut if they are for example: Manufacturer A makes a "A" class product, and manufacturer B makes upgrade/part that generally goes with class "A" products, but is for one reason or another not compatible with Manufacturer A's particular "A" class product. However, a good chunk (60%-70%) of the products/parts in the database can have their compatibility inferenced by their properties, For example: Part 1 is type "A" with "X" mm receiver and part 2 is also Type "A" with "X" mm interface and thus the two parts are compatible.. or Part 1 is a 8mm gear, thus all bushings of 8mm from any manufacturer is compatible with part 1. Further more, all gears can only have compatibility relationships in the database with bushing and gear boxes, but there can be no meaningful compatibility between a gear and a rail, or receiver since those parts don't interface. Now what I want is an AI to be able to learn from the decisions of the crowdsourced platform community and be able to inference compatibility for new parts/products based on their tagged attributes, what type of part they are etc. What would be the best form of AI to tackle this? I was thinking a Expert System, but explicitly engineering all of the knowledge rules would be daunting because of the complex relations between literally tens of thousands of parts, hundreds of part types and many manufacturers. Would a ANN (neural network) be ideal to learn from the many inputs/decisions of the crowdsource platform users? Any help/input is much appreciated.

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• Directory permissions on Ubuntu Server 10.04 LTS

  - by SebastianOpperman

  I have set up a second drive on Ubuntu Server. The directory displays correctly but Windows users cannot write or create files on the directory. I have Samba set up so Windows can access the drives. here is the last bit of my /etc/samba/smb.conf [personeel] path = /media/windows browsable = yes guest ok = yes writable = yes read only = no create mask = 0775 directory mask = 0775 I want the directory to be shared with writable permissions to everyone who can access the Ubuntu Server. I have tried sudo chmod but to no success. Any help would be appreciated

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• ldap samba user access issue

  - by ancillary

  I have a samba share that is on the LAN. It is auth'd via ldap. Users access file system via ad windows shares. There are shortcuts in directories that point to dir's on samba. Typically a user will click the shortcut to the smb dir, and will be met with a permission denied error. Upon closing explorer and reopening, it will work. DNS is handled by the domain controller, and that is the only server any of the machines use for DNS. Nothing in eventvwr. Only see successful auth entries in samba log. Any ideas?

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