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• Multiple IPs from one router

  - by ergoen

  I would like to know if it is possible (and if so, how) to configure a router running dd-wrt (or openwrt) to supply connected devices with two ip addresses. The network looks like this: [Internet] | [Router] | | [Comp1] [Comp2] ... My ISP provides me with enough public IP adresses to give all devices on my network one each. The easiest way to set that up is to just use the router as a switch. This will however lead to problems with some LAN based applications. I would still like to use Samba-shares between the computers as well as a vpn server. What I am looking for basically is if it is possible to use the router as a DHCP server for a local network (let's say giving IP adresses 192.168.1.xx to connected computers) while at the same time passing through public IP addresses to each as well?

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• VoIP and IPv6 with IPsec

  - by PhilCisco

  Hi, I had some basic questions about VoIP in a IPv6 architecture, right now I'm running VoIP in a v4 architecture, and I was thinking about to change everything to v6. my questions are not that practical but I would like to understand it well. Question 1: if i had internet full v6 or v4 and that I enable IPsec on my v6 router do I still need a VPN through the internet ? because my routers will anyway exchange their pub/priv key or their certificate to ensure the communication. Question 2: If the answer to question 1 is yes then I only have two advantages to put my VoIP architecture to IPv6 the second advantage for me is the NAT which I will not have anymore. I know that right now I should anyway still use things like NAT-PT, Tunnelling and so one but in full v6 are their any other advantages ? Thank you

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• Boot camp install from a HDD image

  - by Dombou

  How would one go about imaging an old work computer (old IBM aptiva from 2001ish) with Windows XP and lots of stuff (VPN client with settings etc) to a new iMac, while preserving Mac OSX? I can't simply install XP on the iMac and then reinstall/copy across stuff; it NEEDS to be an image. Can you even image smaller HDD's and then place them on large ones, or do they have to be the same size? Recommendations on how I go about this? Edit: It MUST be boot camp. I don't want to virtualize it from within OsX

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• Real time audio streaming

  - by Josh K

  I have a remote computer running OS X. I would like to stream the audio from the microphone input over the network so I can listen to it. Primarily I want to do this because I'm out of the office but still need to communicate with people there. I would like to use VLC, but am not fully aware of the options available. I tried SoundFly (as recommended by another answer) but this didn't seem to want to connect. At this point I should note that I'm using a VPN network to connect to the remote computer (using Hamachi). I can open up ports / etc fine though, so I should be able to do this. Alright, I found Nicecase which does exactly what I want but I would prefer to not have to shell out $40 for it.

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• Can the traditional remote desktop client be accessed in Windows RT?

  - by nhinkle

  As mentioned in another question, I've been unable to connect through the Remote Desktop metro app to some computers, in particular those requiring VPN access or load balancers. I'm considering purchasing a Microsoft Surface RT, but given that the app store hasn't matured significantly yet and some niche software will likely never be ported to the Modern UI, I must have acess to remote systems somehow. Until Citrix fixes the receiver app for Windows 8, I'm stuck using remote desktop. Which doesn't work. I've heard that Windows RT comes with some of the Microsoft desktop programs built in, like Microsoft Office and File Explorer. Is the "normal" Remote Desktop Connection program available in Windows RT, and if so, is it 100% compatible with previous versions?

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• Ping IP: connect: no such process

  - by Matthew

  I am trying to figure out this issue and am getting a weird error. We have two boxes which used to talk to one another on the network. Both are reachable via ssh from a separate network, which means they are able to talk to their default gateways just fine. When we try to ping from the linux machine to the linux machine, we get a bunch of timeouts. When we try to ping from the linux box back, we are getting connect: no such process. I can't seem to find much documentation on this error, though there consistently seem to be references to VPN stuff when googling for this error. The

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• Wireless Bridge -DHCP

  - by Usta

  I was thinking of picking up a couple of TP-Link wireless routers, and setting them to bridge. I have a sep. LAN network that would have one of them, and I'd put one on my internet connection. Would I be able to keep my current IP subnets? (255.255.255.0 and 255.0.0.0) or would I have to pull my IPs from the same IP range. (I want to keep my current DHCP servers in place) The reason I want a bridge is so that I can VPN into the internal network.

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• Remote desktop on Mac

  - by Crystal

  I just started a job using a Mac. I also have a Mac at home. The IT dpt here does not know how to remote login to my desktop from home. They installed the Cisco VPN client and game an account for that. I think at this point I need some remote desktop software to login to my work Machine. I looked online and downloaded the free version of TeamViewer. I didn't really understand how to use it. I have my work computer's name, and was hoping that would be enough to login, but I think I am mising a piece of the puzzle. Any thoughts on how to login to my work computer? Thanks.

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• Seeing double-cursor in 'recursive RDP'

  - by John

  I'm using a Virtual PC VM on my PC to connect to a remote PC using RDP over a VPN. It works just fine except that in the RDP session, I often see a double mouse cursor... I get a standard mouse-arrow and the context-specific cursor such as a caret or hourglass. It's not a big problem but rather annoying and I wondered if there's any way to fix it, or at least understand where it comes from? Is it because I'm effectively running one RDP session from inside another? My host PC runs W7, my local VM runs XP, and the remote PC access using RDP is W7. Thankyou for any help.

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• Possible to load entries into hosts.deny from text file?

  - by Tar

  I have around 96 million IP addresses that I have collected and routinely validate to be VPN providers, proxies, etc. I want these blocked. Currently, I am including the list formatted like deny ip; in nginx and that works perfectly. I want to use this list on another server, but nginx isn't an option, and I don't trust apache to handle this without slowing down. Is there a way to load this list into hosts deny via some command like aclexec or something? Are there other alternatives like setting up a DNSBL or using hosts.deny in conjunction with one?

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• How to collect figures of traffic used per-host, broken up by time and destination?

  - by Seishun

  We have a relatively small network, all PSs in one subnet. One PC with two NICs and pfSense installed works as a firewall/router. There is an OpenVPN tunnel to a remote location, created as a site-to-site connection to another pfSense box there. I have an assignment to capture, store and show (via a web interface) information on traffic generated (both incoming and outcoming) by each host on our subnet and present it in several views: megabytes per calendar hours / days / months / years (that is, not just "one month back", but "in Dec 2010" and so on); megabytes per destination: VPN to remote location / other destinations / Google Apps servers. I tried the software packages in pfSense that offer traffic montoring - but it seems they don't store the information fixed by months, instead showing the amounts of traffic generated in periods (days/months/etc) calculated from the present moment. I'm also interested in understanding what would be the best way for me to break up traffic by hosts and destinations. I'm open to all suggestions, even if they mean that I will have to understand something new to me.

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• Optimize Windows file access over network

  - by Djizeus

  At my company I frequently need to access shared files over a Windows network. These files are located on the other side of the planet, so I guess the file share goes through some kind of VPN over Internet, but I don't control this and it is supposed to be "transparent" for me. However it is extremely slow. Displaying the content of a directory in the file explorer takes about 10s. Even if over the Internet, I did not expect that retrieving a list of file names would be that long. Are there any settings to optimize this from my Windows XP workstation, or is it mostly related to the way the network is configured? The only thing I have found so far is to cache all file names, while by default only short file names are cached (http://support.microsoft.com/kb/843418).

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• Exchange 2010 allows outside access to network files

  - by user2891127

  One of our users discovered by accident he could access our network files from his smartphone while at home. No VPN needed. He was sent an email with an internal link to a network share on his android. When he opened the email and clicked on the link, he could browse our files while at home. Looking at the access logs, the connection to the share and files he accessed came from our mail server (Exchange 2010). We have no sharepoint servers running at all, and certainly not on the Exchange server. What is this function/feature called, and is it possible to turn this function/feature off? Should I turn this off?

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• Unable to open websites that use HTTPS on linux

  - by negai

  I have the following network configuration: My PC 192.168.1.20/24 uses 192.168.1.1/24 as a gateway. Dlink-2760U router with Local address 192.168.1.1/24 has a VPN connection open with the provider using PPTP. Whenever I'm trying to open some web-sites that has some authorization (e.g. gmail.com, coursera.org), I'm getting a request timeout. This problem is observed mostly on linux (Ubuntu 12.04 and Debian 6.0), while most of such websites work correctly on windows XP. Could you please help me diagnose the problem? Could it be related to NAT + HTTPS? Thanks

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• Routing DHCP traffic over the internet

  - by rmanna

  i'd like to know if it's possible for the internet to be between a DHCP server and the network it's "assigned" to? so basically, something like this: -------------- ------------- ------------- | DHCP Server | | DHCP | | Clients | | |-----Internet-----| Relay Agent |------| 192.168.0.* | | | | 192.168.0.1 | | | -------------- ------------- ------------- the behavior i'm seeing is that the DHCP server is offering 192.168.0.* IPs and sending them back to 192.168.0.1, which it can't reach. i tried masquerading the packets sent by the relay agent but that doesn't seem to work. from what i've been reading, this is normal behavior since the DHCP server uses the GIADDR as the destination address for its OFFERs, and not the actual source IP of the packets it receives from the relay agent. sooo, given that my DHCP server needs to be "on the other side of the internet" as depicted above, how can i get this working? are there settings for dhcpd to do this or is creating a VPN containing the DHCP server and the relay agent the only way? thanks!

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• Hosting company that does Linux VPS and MS SQL

  - by danielmcq

  I'm looking for hosted solutions but there are so many companies that finding the right one using a Google search is a bit overwhelming. Ideally I would like a hosting company which has following options: -Linux VPSs - Individual VPSs should be fairly cheap since I plan on putting one or two services per VPS i.e web server on one (httpd and ColdFusion), an SVN server on another, etc. -Managed MS SQL databases - My company already has data in MS SQL databases and a lot of ColdFusion code written that has MS SQL specific commands in it. -Individually purchased dedicated IP addresses -Preferably located in the North America region My plan would be to setup one Linux VPS as a gateway/firewall/VPN server and have all of my traffic routed through so that my other servers would not use of bandwidth by talking to each other. The trick is also finding a company that does Linux VPS AND MS SQL databases. Does anybody know of any hosting companies offer what I'm looking for? Let me know if I need to add more details.

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• How to configure OpenVPN server to use custom default gateway?

  - by Arenim

  I have a vpn server at address 10.1.0.2 and the server have another ip in it's network -- 10.0.0.2 in his subnet (it's a tun2socks router). But default server's gateway is NOT 10.0.0.2 (and it's ok) but another external IP. I want all the client's traffic to be forwarded through this ip address -- 10.0.0.2. Here is part of my server's config: dev tap0 server-bridge 10.1.0.1 255.255.255.0 10.1.0.50 10.1.0.100 push "route 10.0.0.0 255.255.255.0" ; now client can ping 10.0.0.2 push "redirect-gateway def1 bypass-dhcp" push "dhcp-option DNS 10.1.0.1" push "dhcp-option WINS 10.1.0.1" in fact i want some like push "redirect-gateway 10.0.0.2" How can I achieve this?

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• What is the best appliance you've used?

  - by phuzion

  Post your favorite appliances or "all-in-one" programs. Whether it runs in a virtual machine, or on its own hardware, it all goes. My submission is Untangle. It's an open source network gateway (their term). Essentially, it can run a plethora of things that you may otherwise end up buying another appliance for: Web filtering logging mail spam filtering phishing monitor spyware blocking VPN You name it, it's all there. Best of all, it's mostly free. A few appliances have annual costs due to inherent licensing or subscription costs. If you are looking for a new network perimeter device, definitely check it out. The underlying OS doesn't matter, because it's the application we want to praise, not the OS beneath it.

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• 8GB, but have to run Windows Xp (32 Bit). Anything I can do with the additional memory?

  - by user12889

  I ordered a new computer with 8GB RAM with the plan to run Windows 7, 64Bit. Turns out now, that I need to run a 32Bit OS (XP or 7) due to some software which does not run on 64Bit yet (not even with any of the available compatibility settings / modes). Is there anything I can do with the memory above 4GB in this scenario? I'm willing to consider creative solutions like running a hypervisor under XP that offers the memory as a RAM-Disk for swapping etc. ? The software that does not run on 64Bit is CISCO VPN (there seems to be a half-working solution for that) and CISCO IP phone / webcam integration "CISCO Unified Video Advantage" (there is apparently no solution for that).

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• Sharing a Win7 Mappable Network Drive in Server 2008 R2

  - by Jason

  I have a ghetto windows server 2008 r2 server that I basically run as a file server. I would like to create a share that can be mapped as a network drive by a Windows 7 Pro PC. How can I do this? I've gathered that I probably need to setup a VPN network on my Server 2008 R2 box and then grant my Win7 PC access. Is there anything else I am overlooking or is there a better way to do this? I basically just want to be able to edit xml files on my Win7 PC without having to ftp them back and forth.

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• Remote desktop auto start session on workstation login

  - by me2011

  I am setting up Remote Desktop Services for use by one of our remote offices. The workstations at the remote office are all Windows 7 Pro, joined to the domain. There is nothing installed on the local workstation othern than the Win7 OS. The remote and main office are linked via VPN. The workers will login to the local workstation, using their domain login, then right now double click an icon on the desktop which will do the RDP to the Remote Desktop Server. This does work fine, but requires some user education. Is there a way that when the user logs into the local workstation, it will start the RDP session right away and pass their username/password through as well? Would using a thin client PC do what I am asking? Thanks.

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• How do you limit the bandwidth for a file copy?

  - by wizard

  I've got an old windows 2000 box in a remote location with a T1 connection and a vpn to my location. I normally use smb mounts to transfer files but now it's time to decommission the server and copy it's backups to my location. I have about 40 gigabytes (compressed) to copy. I'm prepared for it to take a long time, but I have a few caveats. I need to limit the bandwidth so terminal service connections to the site are not affected I want to be able to resume a partial transfer There are a few small files and several large files (10-20 gigabytes). I'm familiar with rsync on *nix platforms but have had bad luck with windows and I don't know that it will really keep partially transfered files. What do you use?

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• Download resume support blocked by isp?

  - by John Doe

  Can ISP block resume support for downloads ? I'm using IDM (internet download manager) to download of the internet from resume supported websites, yet I am unable to resume downloads. I tried different computers with the same result. Turned off firewall, didn't have any effect i was able to download with no issues until a couple of days ago. Another thing i noticed is that before IDM used to try to connect to several connections to speed up my download, but now it can only connect to one connection. Also i tried to download using my vpn, and i was able to download and resume downloads with no problem.

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• OpeVPN log connecting client IPs

  - by TossUser

  I looking for the best solution to log all connecting client's ip to either a text file or a database who logs into my VPN server. Under the IP I mean the public WAN IP on the internet where they are connecting from. A hack could definitely be to make the openvpn server log to a separate logfile and run logtail periodically to extract the necessary information. So the database I want to build would look like: Client_Name | Client_IP | Connection_date roadwarr1 | 72.84.99.11 | 03/04/14 - 22:44:00 Sat Please don't recommend me to use the commercial Openvpn Access Server. That's not a real solution here. If the disconnection date could be determined that would be even better so I could see how long a client was connected and from where! Thank you

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• Single PC Satellite Office Firewall

  - by Carl

  We are setting up a small, single PC office about 200 miles away. We plan on getting a cable internet connection but need some advice on a sufficient firewall. We would like to keep it under $100 if possible. 2 options we are considering are: Cisco RVS4000 (got some bad reviews) Linksys WRT120N (running DD-WRT) We need the ability for VPN but other than that we don't need anything special. We just want to keep that PC as safe as possible but easily maintainable because most work will be done remotely. What suggestions or solutions can you recommend for this application?

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