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• Redirect URL to a Tomcat webapp

  - by phs

  I have a Tomcat server with two webapps, app1 and app2 (the app part is really the same). Each app has an independent group of users. I would like the groups to be able to access their respective app using group1.domain.com/app and group2.domain.com/app URLs, meaning that the numbers should be hidden from the URL displayed in browser. I suppose there needs to be a mechanism that would return the correct app based on the group# part of the URL. I have a vague understanding of URL rewrites. Is there a way to do this with only Tomcat? Or do I need Apache HTTP server? I would rather not use Apache if possible, but have no problem going that way if necessary.

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• SVN very slow over HTTP (seems auth related)

  - by Sydius

  I'm using SVN version 1.6.6 (r40053) via the command-line in Ubuntu 10.04 and connecting to a remote repository over HTTP that is in the local network. For a while, it worked fine, but has recently become very slow for any operation that requires communication with the repository, however it does eventually work after several minutes (~3m for svn up). Looking at Wireshark, it appears to be taking a full minute between the HTTP auth denied and the subsequent request containing credentials. The issue is local to my machine because other coworkers running Ubuntu are not having the issue and I've tried using my credentials from another machine and it was very fast. I tried deleting the .subversion folder in my home directory and checking everything out fresh, but it didn't help. Update: I think it's auth related. When I check out SVN repositories off of the Internet over HTTP (from Google Code, for example), everything is very fast until I do something that requires a password. Before prompting for the password for the first time, it stalls for at least a minute. Update 2: I set the neon-debug-mask in the SVN settings (in /etc/subversion/servers under [Global]) to 138 and it seems to spending a lot of time on 'auth: Trying Basic challenge...'

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• What kind of website traffic can a 10mpbs connection handle?

  - by Blankman

  I need some help understanding firewalls. I played around with Amazon EC2 and it seems to provide a firewall out-of-the-box. When I say firewall, to me that means the ability to block ports from being accessed from the outside world, or to only specific security groups. I'm looking at a dedicated server hosting provider and they provide a hardware firewall for $50/month and it is limited to 10mbps. Can someone explain to me what kind of traffic this correlates to? Are these usually limited to the number of simultaneous connections also?

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• ubuntu 12.04 kvm virtual server network setup, can't get the machine to be connectable

  - by xyious

  I have worked on my Ubuntu Server host for weeks now and I just can not manage to get the virtual machines into the network.... here's what I need to do: I need to be able to create virtual machines that have IP addresses that can be reached from the outside (192.168 network). I need to be able to connect to the virtual machines through ssh, ftp, http and preferably https, anything else doesn't matter that much. So far everything seems simple enough and I have a lot of leeway in terms of IP address range and server/client configuration. I have the option of taking part of a /24 net as most IPs aren't used, and if it's absolutely necessary I have the option of creating a new /24 subnet. Also have the option of reformatting and reinstalling OS on the host and recreating the virtual machines as nothing has been done other than trying to get virtual machines to work. I would prefer if the virtual machines were just part of the normal network which would be 192.168.5.0/24. The host machine has 2 network cards so I don't even necessarily need the Host to be connectable in the same /24 network. I have tried (I think) just about everything from about 5 different tutorials on bridging (giving br0 the same IP that eth0 used to have (Host is able to connect to VM and vice versa, VM doesn't have outside network access), having eth0 set up like it always was and having br0 have a different IP (same as above), NAT with port forwarding (which I would have preferred not to use but will if it works), turning off one of the hosts network cards and just using one of them, different subnets.... etc. I do know my way around iptables fairly well.... Host is 64bit Ubuntu Server 12.04, using libvirt/kvm. edits: Local network is 192.168.5.0/24, host has static ip 192.168.5.254, GW .5.1 which is also nameserver. We have a second Local network at 192.168.10.0/24 with .10.1 GW, but both hosts and VMs were supposed to go into the .5 subnet. The .10 subnet isn't required, but it wouldn't be horrible if the Host were only accessible in the .10 subnet.

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• How can I disable the guest account on OSX Lion?

  - by Wezly

  I have 'disabled' the guest account on my macbook pro running Lion via System Preferences Users & Groups. However the guest account still seems to appear as an option to login at start up and when switching users. I have never used the guest account for anything, and I have tried a system restore but the guest user has returned as before. How can I get rid of it? Thanks. edit: I also just enabled and disabled the account again - but the guest option still appears at startup offering a safari only restart for a guest user.

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• SSL certificates: how to use it?

  - by Rod

  I have a central server and I want to purchase a SSL certificate for it. The architecture is based on this central server and many connected web-servers which are on the client-side (one for each user). A client could access both the main server and its local server. Moreover the two servers exchange data between them. I would like client's web browser to trust all servers and always activating https and a secure connection when connecting to them. Assuming I can name all servers on the same domain name (I was thinking about a wildcard certificate anyway), which kind of certificate or use of it can make these secure connections working? There is the possibility that main server and client side server are not connected for a while. Is possible to activate an https connection for a client to its local server in this case? When I will need to renew or change the certificate, I would like to change it just on the main server avoiding to have the need of touch all the servers on the side of clients. Can I do that in some way?

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• How can I get Solr listening on 0.0.0.0 instead of just localhost?

  - by Neil

  I'm trying to get Solr to listen on 0.0.0.0 instead of just localhost, and it doesn't seem to be picking up the configuration options. I downloaded apache-solr-1.4.1 from the Solr website, and I'm running: user@:apache-solr-1.4.1/example $ java -jar start.jar With these configuration options: <Call name="addConnector"> <Arg> <New class="org.mortbay.jetty.bio.SocketConnector"> <Set name="host"><SystemProperty name="jetty.host" default="0.0.0.0" /></Set> <Set name="port"><SystemProperty name="jetty.port" default="8983" /></Set> <Set name="maxIdleTime">50000</Set> <Set name="lowResourceMaxIdleTime">1500</Set> </New> </Arg> </Call> Where the only line changed from the default is this one: <Set name="host"><SystemProperty name="jetty.host" default="0.0.0.0" /></Set> And when I check netstat, I see this: $ netstat -an | egrep 'Proto|\b8983\b' Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 127.0.0.1:8983 0.0.0.0:* LISTEN tcp6 0 0 ::1:8983 :::* LISTEN Where Local Address should be 0.0.0.0:8983 instead of 127.0.0.1:8983. Does anyone know why this might not be working?

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• What ports, besides 80, need to be available to send (only send) email using phpmailer to gmail over SSL?

  - by Wobblefoot

  Using phpmailer I keep getting a 110 timeout and "Unable to connect to host" when sending email from my web server. The authentication details are right and they work on another server I have (login, pwd, ports etc and gmail acct set up for SSL connections on 465), but it's failing on my new server. FIREWALL: I allow related/established, port 80 and a port for SSH on INPUT, then this on OUTPUT: 7906 474K DROP tcp -- any any anywhere anywhere tcp dpt:smtp 0 0 ACCEPT tcp -- any any localhost.localdomain yw-in-f109.1e100.net tcp dpt:submission 0 0 ACCEPT tcp -- any any localhost.localdomain gx-in-f109.1e100.net tcp dpt:ssmtp 0 0 DROP tcp -- any any anywhere anywhere tcp dpt:submission 9 540 DROP tcp -- any any anywhere anywhere tcp dpt:ssmtp This output chain works on my other server and disabling it doesn't get mail delivered either. WEB SERVER: Varnish (80) Nginx (8088) Drupal 7 PHP5-FPM APC MySQL All works beautifully, except for outgoing email. What else could it be? I understand phpmailer does NOT require a local MTA or procmail (this is sort of the point - I don't want the security or admin overhead of a full blown MTA on my web server). Am I wrong? Do I need an MTA as well? What local ports and programs are used to authenticate over SSL and route mail using phpmailer? Any ideas at all greatly appreciated - wasted a day on this nonsense already!

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• Incorrect Internal DNS Resolution

  - by user167016

  I'm having a DNS issue. Server 2008 R2. The first clue was that after being off the network for a month, I could no longer Remote Desktop into my workstation by name, it wouldn't find it. Both via VPN and internally. But if I connect using its IP, that works. Now I notice in the server's Share and Storage Management, in Manage Sessions, it's displaying the incorrect computer name for some users. So I try, for one example: Ping -a 192.168.16.81 Pinging BOBS_COMPUTER.ourdomain.local [192.168.16.81] with 32 bytes of data: - replies all successful Then I try Ping RICHARDS_COMPUTER Pinging RICHARDS_COMPUTER.ourdomain.local [192.168.16.81] with 32 bytes of data: -all replies successful In DHCP, .81 belongs to RICHARDS_COMPUTER I did try flushdns. Not sure if this is related, apologies if it's not, but when I try to connect, I also get prompted: "The identity of the remote computer cannot be verified. Do you want to connect anyway? The remote computer could not be authenticated due to problems with its security certificate. It may be unsafe to proceed.." It then lists the correct name as the name in the certificate from the remote computer, but claims that the certificate is not from a trusted authority. Any thoughts are most appreciated!

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• Bing Desktop not updating the wallpaper anymore

  - by warmth

  For some reason, first my workstation and then my tablet stopped updating the wallpaper. First I thought it was my company that was avoiding the app to work properly but then I started noticing that the app itself is a mess: It has two storage and formats for the wallpapers: C:\Users\<username>\AppData\Local\Microsoft\BingDesktop\en-US\Apps\Wallpaper_5386c77076d04cf9a8b5d619b4cba48e\VersionIndependent\images with a #####.jpg (single number) image format & C:\Users\<username>\AppData\Local\Microsoft\BingDesktop\themes with a ####-##-##.jpg (date) image format. I read here that deleting the themes folder it will get remade with the new images, and it worked. However those are not the files used by the Wallpaper app and deleting the images folder won't get the same result. I have added Bing Desktop to the Firewall white list and the issue is still there. Any ideas? Currently I'm using DisplayFusion to place the wallpaper manually because the company doesn't allow change the wallpapers (policies). Note: I wrote to the DisplayFusion developers to suggest adding a feature to support Bing Wallpapers. They told me there was no API support to implement it but they will study this possibility (workaround) for the future: http://stackoverflow.com/questions/10639914/is-there-a-way-to-get-bings-photo-of-the-day

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• Make call with alternate provider if NOANSWER

  - by adaptive

  I have two voip providers, one free an the other paid. The free provider only allows local calls to certain area codes, so I need to fall back to the the paid provider if a call fails. At the moment, I have the following context in my extensions.conf file: [globals] ; freephoneline.ca PRIMARY_PROVIDER=fpl ; voip.ms SECONDARY_PROVIDER=voipms [local] exten => _NXXNXXXXXX,1,Set(CALLERID(name)=${OUTGOING_NAME}) exten => _NXXNXXXXXX,n,Dial(SIP/${EXTEN}@${PRIMARY_PROVIDER}) exten => _NXXNXXXXXX,n,Set(CALLERID(num)=${OUTGOING_NUMBER}) exten => _NXXNXXXXXX,n,Dial(SIP/1${EXTEN}@${SECONDARY_PROVIDER}) exten => _NXXNXXXXXX,n,Hangup() I checked the logs and noticed that the free provider responds with NOANSWER if a call is not allowed (Even though it plays a message). What I want is to: Try calling the ${PRIMARY_PROVIDER} first. If NOANSWER is returned by provider (not that the callee did not answer), then call with ${SECONDARY_PROVIDER} How can I modify my dial plan to get the desired results? EDIT : The primary provider is freephoneline.ca, and I'm using asterisk v1.8.2.3-2

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• vsftpd per group configuration

  - by roqs

  I want to configure a vsftpd in a per group fashion instead of per user configuration. It's possible? Suppose i have two groups: groupA and groupB, so my goal is: users in groupA have permission (wrx) to all files in directory dir1 users in groupB have permission (wrx) to all files in directory dir2 users of the system have permission (wrx) to all files in directory dir3 For example: ftp@test:/home/ftp# ls -l drwxrwxr-x 16 root groupA 4096 Jun 3 10:45 dir1 drwxrwxr-x 2 root groupB 4096 Jun 3 10:56 dir2 drwxrwxr-x 8 root users 4096 Jun 3 11:01 dir3 How to do that with vsftpd?

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• Unix / linux permissions setup for shared hosting with Apache

  - by weiyin

  I'm in the process of setting up a server from a clean CentOS 5 install. What is the best permission structure (users, groups, unix permissions) for running a single instance of apache for multiple users? Ideally, it should satisfy these requirements: Each user's websites are stored in a subdirectory of their home directory. Users can edit files and permissions. Apache can read the websites of all users. No user can read the website files of other users. Bonus question: how to add PHP and/or Perl and/or Ruby to Apache without allowing any users to access any other user's files?

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• Programmatic, script-based, or command line method to change starting program for user on Windows Server 2000/2003?

  - by Joe Majsterski

  I have written an app that we want to distribute to a large number of customers to be used as the shell program when they log onto their server with a particular admin account. I have figured out how to change the starting program by going to Administrative Tools->Computer Management->System Tools->Local Users and Groups->Users, selecting the properties for the user, going to the Environment tab, and changing the program file name under "Starting program" to my new app. But is there a way I could do this with some code that could be sent out and run on all these servers?

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• Passive mode FTP file download hangs from specific machine

  - by chiptuned

  I have a server which is an AWS instance that just cannot download files from a specific FTP server. I can connect to the FTP server fine and run some commands, but when I request a file it just hangs. Here is the debug output of the base linux ftp client after login: ---> SYST 215 UNIX Type: Apache FtpServer Remote system type is UNIX. ftp> get outgoing/catalog.gz catalog.gz local: catalog.gz remote: outgoing/catalog.gz ---> PASV 227 Entering Passive Mode (64,156,167,125,135,191) ---> RETR outgoing/catalog.gz 150 File status okay; about to open data connection. Thats it. Then it just sits there and nothing transfers. I have verified that a data connection is made but the client gets no data. ? ss -nt dst 64.156.167.125 State Recv-Q Send-Q Local Address:Port Peer Address:Port ESTAB 0 0 10.185.147.150:41190 64.156.167.125:21 ESTAB 0 0 10.185.147.150:48871 64.156.167.125:48557 The FTP server is not in my control and downloads from other FTP servers in passive mode have worked. Active mode does not work as the system is behind a firewall. Every FTP client I've tried has the same problem. The download works from other systems, even from other AWS instances I have with the same Security Group. Not necessarily the same distro or config though. I understand it may be some issue on the server side, but I want to know what it is about my particular machine where the transfer hangs and where on every other machine I can get my hands on, it works. Please let me know what the culprit on the client side could be or ideas on what else to look at.

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• Increasing link speed on OpenVPN (bandwidth)

  - by Mike

  I have bought a tunnel service by using OpenVPN. For a year I've had 10 Mbps max upload/download speed but now I've bought an additional 20 Mbps making the available total bandwidth 30 Mbps for me. On their homepage there are some controls available for me, for example to restart the tunnel. I've done that. It also says that the speed has indeed been upgraded to 30 Mbps on their page. I also got an email that said they have upgraded the speed. However after I reboot my machine, and OpenVPN has started up and is running as usual, when I look at the Windows Task Manager (opens when pressing CTRL+SHIFT+ESC) in the "Networking" tab I still have a link speed of only 10 Mbps. Two adapters are listed: Local Area Connection 4 (10 Mbps) and Local Area Connection 5 (100 Mbps). LAC5 is my "real" adapter, I have a 100 Mbps Internet connection if I don't use a tunnel. LAC3 is the virtual adapter used by OpenVPN. The problem is that it is still showing 10 Mbps even though I have upgraded to 30 Mbps. How can I fix this?

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• Find visually similar images automatically?

  - by TERACytE

  I have a collection of images which is updated regularly that I'd like to group. Rather than reviewing every single image in the collection, I'd like to run an automated tool that pre-groups the images. Adobe PhotoShop Elements has a "Find Visually Similar photos" feature which works well, but it requires manually importing the images first, then I have to select an image each time I need Photoshop to search for images that are visually similar. I do not need a de-duping program since the images are never identical. Is there anything out there that can provide what I'm looking for?

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• apple adress book mass email [on hold]

  - by Thijser

  I have been asked to help a small non profit organasation with some IT problems. They currently have a mailing list of around 200 people saved on a mac inside adres book. Now currently these people are send emails in groups of around 20 as the standard apple email program does not allow more. I know that there are programs that can be used to send email to a larger number of people however these usually require a database and I'm not sure how to use those. Anybody got any tips?

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• How do I tunnel an HTTPS proxy through a virtual machine (VMWare)

  - by Kyle

  I have a personal setup at home using VMWare Workstation. I also have a set of Virtual Private Machines that run Squid, and therefore provide me HTTPS proxy tunnels. Using Proxifier, I can tunnel all traffic for given applications through these tunnels. However, I also have a few virtual machines for dev/staging/experimentation/etc. I generally just use NAT to provide Internet access to the machines, and if I need to use these proxies, I can just setup Proxifier (or a Linux equivalent) to pipe the traffic through them. No problem. But... I got to thinking: Wouldn't it be great if I could assign these proxy tunnels to a virtual machine, so that when I start up the VM, it has instant-on access through the tunnel and not my local connection? (EDIT: Of course, it would USE my local connection, but it would tunnel traffic through the proxy.) To be more clear: I want a solution that binds the proxy to a VM, so that when I start the VM, I don't have to use a proxy client to connect to the tunnel - I am already piping all traffic from that VM through that proxy. I did a bit of searching, and the closest thing I could find was this: How to route public static IP to a virtual machine on a vmware ESXi host? Which wasn't all that applicable. The proxies are protected by user/pass but do not filter by IP. Again, they are HTTPS proxies setup through Squid. Any ideas on how to make this happen? Thanks a ton.

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• Can't get PHP to work with my Nginx virtual host. Keeps returning "No input file specified"

  - by steve

  I'm trying to get phpmyadmin up and running on my server. Here's the nginx vhost for it: server { listen 80; server_name server.mydomain.net; location /phpmyadmin/ { fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /usr/share/phpmyadmin$fastcgi_script_name; include /opt/nginx/conf/fastcgi_params; alias /usr/share/phpmyadmin/; } root /opt/nginx/html/; } Here's my fastcgi_params file fastcgi_param GATEWAY_INTERFACE CGI/1.1; fastcgi_param SERVER_SOFTWARE nginx; fastcgi_param QUERY_STRING $query_string; fastcgi_param REQUEST_METHOD $request_method; fastcgi_param CONTENT_TYPE $content_type; fastcgi_param CONTENT_LENGTH $content_length; fastcgi_param REQUEST_URI $request_uri; fastcgi_param DOCUMENT_URI $document_uri; fastcgi_param DOCUMENT_ROOT $document_root; fastcgi_param SERVER_PROTOCOL $server_protocol; fastcgi_param REMOTE_ADDR $remote_addr; fastcgi_param REMOTE_PORT $remote_port; fastcgi_param SERVER_ADDR $server_addr; fastcgi_param SERVER_PORT $server_port; fastcgi_param SERVER_NAME $server_name; I compiled lighthttpd so I could pull out spawn-fcgi. That is now sitting in /usr/local/bin and is accompanied by my php5-cgi launcher which looks like: #!/bin/sh /usr/local/bin/spawn-fcgi -a 127.0.0.1 -p 9000 -u www-data -C 2 -f /usr/bin/php5-cgi I run this and can see that it's successfully launched by doing a ps aux | grep php. However, whenever I try to open phpmyadmin, I get the error "No input file specified" What am I doing wrong? :/

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• How can I select multiple windows to tile in Window 7 (like you could in previous versions)?

  - by Daniel

  I've disabled Aero Snap, is there any way to restore the old method of window arrangement allowing you to do side by side, or top and bottom, etc.? All you had to do before is select the windows you want and right click. I know the menu is still there in Windows 7 but it is only for the whole Task Bar, and you can also do it from the Task Manager but that is more complex to get too. After looking all around I cannot find a way to restore any such right click menu for each application. Is there a way to tile like this for individual windows or groups?

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• oracle access on vmware fusion

  - by gaudi_br

  Hello, I'm running snow leopard and I'm doing some development that requires some network knowledge. I've installed vmware fusion 3.0 and I've set up a virtual machine with windows 2003 server. I need to mimic the exact configuration of another server in the network, so I really need to run the versions I'll be mentioning here. Besides, I set up two network configurations on the VM: one NAT config (so that I can have internet access) and one host-only config (because I need to use another server's mac adress and my local area network might have a problem with it) From the installation of windows 2003, I then installed oracle 10.2.0.1. During the installation I received a warning about the primary ip-address of the system being dhcp assigned, but I ignored it (maybe it was a mistake)... Now, from experience, unless the DHCP assigned address changes, I should be able to access the guest system's database from the host system, so I went to safari and tried to access the oracle em. As it turns out, because my computer is on a company network, the company's DNS doesn't know about the virtual machine, unless of course I switch to a bridged network config. However, I don't want to do that because I don't to mix up the domains. So I guess the question is, how can I define my own dns or router, or whatever it is that I need to define so that whenever I try the guest system's ip address form the host, it will use the vmnet1 or vmnet8 interface define by vmware and bypass the dns configuration of my local area network. I'd also like to know what to do incase I want to change ip addresses on the guest machine without having oracle go haywire (I've noticed a few folders on the structure which are specific for the very first IP Address)... Any help would be appreciated. Thanks in advance.

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• Alternative to Xcode [closed]

  - by Moshe

  For those familiar with Windows, I used to use "Programmer's Notepad" and "TextPad". I want a Text Editor, not an IDE, with the following few features (in no particular order): Syntax Highlighting Tabbed editing Projects (groups of files together in one "project" file) Spellcheck Lightweight - I prefer something other than Xcode. Updates I am looking for something primarily for web development. Must be Free. +1 For relevant link(s). GUI Based only Conclusion I realized that gEdit is available for OS X. I met it back on Ubuntu 6. Something-or-other. We have a winner. all for input.

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• File report ignoring NTFS permissions

  - by Edulin

  I need to inventory based on file age a huge NAS. Some folders are restricted, and only users or groups have rights. As you probably know Treesize is the best solution, the only problem I found is that if I want to script it it only takes a screenshot instead of writing the information to a text file. (If done through the GUI I'm allowed to copy/paste into text, but I need to script it, several shares). Robocopy /l lists the files but I also need to know the dates (last access / last modify) I saw a kernel driver by hobeanu to bypass ntfs permissions. But do you know any easier way to bypass ntfs permissions? or any other application that allows this type of request and save the information to a text file. (scriptable) Thanks

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• Safely transfer files from pc with internet connection to lan without allowing any other form of communication

  - by Hugh Quenneville

  In the company that I work there are computers that are connected to the Internet and computers that are connected to a Local Area Network. The LAN is considered a "safe zone" and the files that reside there should never be copied/moved to a computer that has Internet Access. So, now, if we want to download an installer for an application for example, we download it in a pc that has Internet Access and then move it using a "secure USB stick" to the Local Area Network. Is there a way to create an "safe, one-way connection" between a computer with Internet access and a computer from the LAN? This practically means that only files from the computer with the Internet access can be copied/moved to the LAN. In addition to that, if you want to transfer files you would have to provide your security credentials for the network (so, that only users with the appropriate access levels will be able to transfer files). Is it possible to create something like that and make it completely safe (or at least "equally safe" with the USB method that we currently use) or the fact that the computer with Internet access is connected with a wire to the LAN is a security risk by itself? NOTE: the LAN setup involves 2 Windows 2003 servers with Active Directory, Web servers and pretty much all the services that you would expect to find in a Windows network.

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