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• Route a specific user's traffic via VPN but still allow local networking

  - by wbg

  So, I want to route certain traffic via a VPN connection and the rest via my normal Internet connection. I want to run several different programs and most of them don't support binding to a specific network interface (tun0 in my case). I've managed to send a specific user's traffic via the VPN following the answers given here: iptables - Target to route packet to specific interface? But unfortunately, when I run a server that connects to the Internet and has a web interface running on a local IP (127.0.0.1/192.168.0.*), all the Internet traffic correctly goes via tun0, but I'm unable to connect to the web interface from a local IP as a different user. When I log in as the VPN-ified user, I can access services running on local IPs, but other users/machines can't access any servers I start. Can anyone point me in the right direction?

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• QNAP TS-419p as a VPN Gateway?

  - by heisenberg

  Hello, I am hoping one of you might be able to help. I want to make files stored on shared folders on a QNAP TS-409p available to users over a VPN link. How is the possible? Can someone explain what I need to do. What do I need to do at the router and what do I need to do on the QNAP NAS? Effectively, what I want do do is use the built in Windows vpn client to connect to my home network and then be able to browse the shared folders. Thanks in advance.

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• Software/internet

  - by Yiannis

  Hi guys, i am using XP SP2, and everything where working fine. Somehow i can go to some web pages, but i cant login to them, for example www.buzzerbeater.com, i cant access my hotmail/msn, outlook doesnt work either, also www.realgm.com, i cant access the forums too. I have tried with IE7/Firefox/Chrome, but same result. I was using avast free edition that i removed, and i dont have any other security software installed. My laptop from the same network works perfectly. Any ideas?

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• ZFS on top of iSCSI

  - by Solipsism

  I'm planning on building out a file server using ZFS and BSD, and I was hoping to make it more expandable by attaching drives stored in other machines in the same rack via iSCSI (e.g., one machine is running ZFS, and others have iSCSI targets available to be connected to by the ZFS box and added to zpools). Looking for other people who have tried this has pretty much lead me to resources about exposing iSCSI shares on top of ZFS, but nothing about the reverse. Primarily I have the following questions: Is iSCSI over gigabit ethernet fast enough for this purpose, or would I have to switch to 10GbE to get decent performance? What would happen when one of the machines running iSCSI targets disconnects from the network? Is there a better way to do this that I just am not clever enough to have realized? Thanks for any help.

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• Setting up a VPN tunnel between a Linux box and a Cisco FW

  - by Meni

  Hi. I have a linux box (ubuntu) and I have a service provider that will only allow an IPSEC tunnel connection between his network and my linux box. I have these details from the service provider: Service Provider: Peer IP – Lan on service provider's side - 10.10.10.10/24 Linux box details: Peer IP - Lan - Connection details: Phase1: Sha Aes 128 DH - group x Preshared – Lifetime – 24h Phase2: Sha Aes 128 Lifetime – 1h I am not sure which app I need to install on the linux box that will support this type of connection. Any ideas? Thanks!

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• Unable to mount cifs in redhat 6

  - by user3734522

  I am relatively new to Linux, and I am trying to mount a CIFS filesystem from an openfiler instance I have on my network in Red Hat. The openfiler instance is authenticating using AD. I am able to connect using samba: smbclient '\\10.25.214.26\cluster_storage.cluster.Cluster' -U [DOMAIN]+[USERNAME] Enter DOMAIN+USERNAME's password: Domain=[DOMAIN] OS=[Unix] Server=[Samba 3.5.6] smb: \> When I attempt to mount on boot via fstab, I am told that the line is bad during startup. mount -t cifs -o username=[DOMAIN]+[USERNAME], password=[my password], domain=[domain.edu] '\\10.25.214.26\cluster_storage.cluster.Cluster' /mnt/scratch Any help would be greatly appreciated.

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• What's the easiest way to move from one Macintosh to another?

  - by schnapple

  Here's the story: Company bought me a $599 Mac mini (as of this writing, 2.26GHz/160GB HD/2GB RAM) I have it set up to some extent with software for development Company decides it needs a second Mac for QA I convince company to buy the $799 Mac mini for the second machine (as of this writing, 2.53GHz/320GB HD/4GB RAM), let me have it for development, and let QA have the $599 Mac mini Company does just that, now I have both So, what's the best way to move from one of these to the other? Just set up everything on the second one and be done with it? Can I transfer things from the first to the second somehow? I'm running Time Machine backups to an external drive on the $599 Mac mini, if that helps. Also both of these will be on the network at the same time, other than renaming one of the machines are there considerations to be had there?

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• DHCP server inside a virtual machine can't see other machines

  - by William

  Hi, I setup a private network from virtual machines and one of the machines is the DHCP server for the group. I want to specify a next-server for the DHCP server but I'm having trouble connecting to any of the machines that I lease IPs to. I'm just trying to do a simple ping/ssh to 10.0.0.252 (a machine with a lease) but it doesn't seem to respond. Any advice? I'm assuming I need to be able to connect to my next-server but maybe I'm wrong. Thanks.

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• Cross subnet connection [closed]

  - by user30472

  My internal Windows 2008 AD network is 172.20.xxx.xxx My Apple Wireless base stations only allows DHCP 172.16.xxx.xxx Private IP address ranges: 10.0.0.0 to 10.255.255.255 172.16.0.0 to 172.31.255.255 192.168.0.0 to 192.168.255.255 The problem: The internet works from my IPad that has a 172.16.xxx.xxx address, but I can't access (browse) my tools server that is 172.20.xxx.xxx that host my Filemaker database. Is it possible to add 172.16.xxx.xxx range somewhere in DHCP or DNS on my Windows domain server so I can access tools? Or is there another way to make this connection work? Thanks

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• New whitepaper: Evolution from the Traditional Data Center to Exalogic: An Operational Perspective

  - by Javier Puerta

  IT organizations are struggling with the need to balance the day-to-day concerns of data center management against the business level requirements to deliver long-term value. This balancing act has proven difficult and inefficient: systems and application management tools are resource intensive and traditional infrastructure management architectures have developed over time on a project by project basis. These traditional management systems consist of multiple tools that require administrators to waste time performing too many steps to handle routine administrative tasks. Operational efficiency and agility in your enterprise are directly linked to the capabilities provided by the management layer across the entire stack, from the application, middleware, operating system, compute, network and storage. Only when this end to end capability is provided will we experience the full benefit of a scalable, efficient, responsive and secure datacenter. Managing Exalogic is substantially less complex and error prone than managing traditional systems built from individually sourced, multi-vendor components because Exalogic is designed to be administered and maintained as a single, integrated system (Figure 1). It is at the forefront of the industry-wide shift away from costly and inferior one-off platforms toward private clouds and Engineered Systems. Read the full whitepaper "Evolution from the Traditional Data Center to Exalogic: An Operational Perspective". Full document is available for download at the Exadata Partner Community Collaborative Workspace (for community members only - if you get an error message, please register for the Community first).

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• New Whitepaper: Evolution from the Traditional Data Center to Exalogic: An Operational Perspective

  - by Javier Puerta

  IT organizations are struggling with the need to balance the day-to-day concerns of data center management against the business level requirements to deliver long-term value. This balancing act has proven difficult and inefficient: systems and application management tools are resource intensive and traditional infrastructure management architectures have developed over time on a project by project basis. These traditional management systems consist of multiple tools that require administrators to waste time performing too many steps to handle routine administrative tasks. Operational efficiency and agility in your enterprise are directly linked to the capabilities provided by the management layer across the entire stack, from the application, middleware, operating system, compute, network and storage. Only when this end to end capability is provided will we experience the full benefit of a scalable, efficient, responsive and secure datacenter. Managing Exalogic is substantially less complex and error prone than managing traditional systems built from individually sourced, multi-vendor components because Exalogic is designed to be administered and maintained as a single, integrated system (Figure 1). It is at the forefront of the industry-wide shift away from costly and inferior one-off platforms toward private clouds and Engineered Systems. Read the full whitepaper "Evolution from the Traditional Data Center to Exalogic: An Operational Perspective". Full document is available for download at the Exadata Partner Community Collaborative Workspace (for community members only - if you get an error message, please register for the Community first).

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• How to connect to internet 2 or more pcs with an usb wifi adapter

  - by bhaoahd

  In one pc I have an USB Wifi adapter (Realtek RTL8187L Chipset), from there a 10 meters cable to an outdoor antenna. With that I connect to a public Access Point. Now I want to be able to connect more computers to internet using that same connection that comes from the outdoor antenna, what options do I have to do this? I do have another usb wifi adapter with a small omni antenna, and a router encore ENHWI-G/A. This router can be used as a Wifi AP, but it needs a modem that works with the RJ45 connector. Is there a way I could take internet from the outdoor antenna, and create another AP indoor using that router to "repeat" that wifi that comes from the outdoor antenna? If creating this second AP is not possible, should I use some sort of local network between computers, connect my main PC with the outdoor antenna, and share the connection through the lan? (I would really prefer to have a second AP indoor so I can connect other devices like a Palm, but I am not sure how could this be possible with this router and the usb wifi adapter)

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• Ubuntu apt-get install (--download-only) executed from another machine on behalf of mine

  - by Maroloccio

  I have a server on a network segment with no direct or indirect access to the Internet. I want to perform an: apt-get install <package_name> Is there a way to somehow delegate the process of downloading the required files to another machine by exporting the server configuration so as to satisfy all dependencies while running: apt-get install --download-only <package_name> Can, in effect, apt-get install read a configuration from an exported archive rather than from the local package database? Can the list of packages to be downloaded be retrieved, along with an installation script to perform the installation, instead of the actual packages? (a further level of indirection which would help me schedule this with wget at appropriate times...)

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• "Cannot allocate memory " error whle copying data from window to ubuntu

  - by John

  I have Ubuntu 9.10 installed inside VM of server 2008. WHen i try to copy the data from the network and paste insid ethe Ubuntu it says error called "Cannot allocate memory " I have 3GB RAM attached to the Ubuntu I tried above suggestion but still im unbale to copy file from my host machine i.e. Windows XP to my Ubuntu machine ( which is at Virtual Machine) Im trying to copy jdk-1_5_0_22-linux-i586.bin file whose size is 47.4 MB Is there any other work around for this problem???? I tried Set the following registry key to ’1': HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\LargeSystemCache and set the following registry key to ’3': HKLM\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters\Size but still im unbale to copy file from my host machine i.e. Windows XP to my Ubuntu machine ( which is at Virtual Machine) Im trying to copy jdk-1_5_0_22-linux-i586.bin file whose size is 47.4 MB Is there any other work around for this problem????

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• How to make NFS mounts available while offline?

  - by lpanebr

  Problem: I work on a notebook and while at work I have access to many NFS mounted drives. When I get home they are obviously not available. Windows 7 solution: My business partner uses Windows 7 and maps the folders via samba. Windows 7 has a very nice feature that let's he make these folders available offline. So when when he connects to the work network the changes get synchronized! Question: Is there a way to mimic that in ubuntu? What I have now: Server to local sync: I have added rsync entries on my crontab to copy server folders => local folders every five minutes. When at work I used the NFS mapped folders and while outside work I use the local copies. When I get at work I manually run a script that syncs local folders => server folders. Problems with my setup: slow startup when not at work (I guess do to the fstab trying to map the server folders) no conflict checking/managing I have to remember to sync manually and be careful because of the different file locations recent files do not work between work and home

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• How can I have a Windows 7 VMware guest without mouse support?

  - by Matthew Read

  Despite having vmmouse.present = "FALSE" mouse.vusb.absDisabled = "TRUE" pref.motionUngrab = "FALSE" in my .vmx file and a customized VMware Tools installation on the guest that does not include the mouse driver, I somehow have fully integrated mouse support for my Windows 7 VM. I can smoothly mouse from the host into the guest without needing to click or Ctrl+G in and Ctrl+Alt out. I don't want this because of the issues it causes with games. How can I get the VM to have no special mouse support while still having VMware Tools installed for its other functions (network, graphics, etc.)? The mouse works as I want without VMware Tools but not otherwise — again, despite not installing the mouse driver and having all those settings trying to disable it. Device Manager shows that the generic Windows PS/2 mouse driver is being used and not the virtual mouse driver. Guest and host are both Windows 7 Ultimate SP1, x86 and x64 respectively. I'm using VMware Player 3.1.4 and the VMware Tools installed is the latest, 8.4.6.16648.

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• VPN stuck on Verifying Username and Password

  - by user2791

  I'm building a new machine and everything is working correctly, except that I can't log on to my VPN. It hangs at the "Verifying username and password..." step, then returns after about 30 seconds claiming Error 721. I have another machine sitting next to this one with the VPN connection configured exactly the same, connecting just fine over the same wifi network, so I'm convinced that there is no server or firewall problem. The VPN works fine. This machine simply can't connect to it given the correct credentials and configuration. Any suggestions?

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• Change Scan-to-PC list names on Brother MFC-8890DW Printer

  - by dralezero

  I have two Brother MFC-8890DW. When scanning over the network, it shows a list of PCs (on the scanner display) to save to that have the software/drivers installed. Each PC is listed as the name of the employee for that computer. I have setup a third MFC-8890DW and installed on these computers. The list, however, is the computer name. Somehow it is possible to customize the name. Brother support did not know. I couldn't find anything in manuals. I thought I remember setting up those names before.

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• Hostname confusion (Ubuntu Server 10.04)

  - by letseatfood

  I have just setup Ubuntu 10.04 Server Edition. I have been following this tutorial. The DNS information seems to be setup correctly now, but I am confused about the hostname. Currently it is laughingbuddha.home. That is a name I created. Now, I am mainly not sure how to connect from another computer on my network. I basically want to be able to put PHP files on the server box and then test them via a web browser on my other computer. So, I think I digressed from my first question, but would somebody please help me figure out if the hostname is okay for doing what I need to do? Thank-you!

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• Cannot access SVN repository from another host within the LAN

  - by akaii

  I'm trying to connect to a repository I've set up on our server from another host on the same network, but the connection is failing. checkout command: svn checkout svn://192.168.11.192/ error: Can't connect to host '192.168.11.192' : Connection refused I tried probing port 3690 with telnet, and I can't seem to connect that way either. I thought the port might be blocked, so I added an entry for port 3690 in sysconfig/iptables, but it doesn't seem to have had any effect at all. I'm sure svnserve is running, because I can checkout the repository on server using the same command above. What can I possibly try next?

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• multi-thread in mmorpg server

  - by jean

  For MMORPG, there is a tick function to update every object's state in a map. The function was triggered by a timer in fixed interval. So each map's update can be dispatch to different thread. At other side, server handle player incoming package have its own threads also: I/O threads. Generally, the handler of the corresponding incoming package run in I/O threads. So there is a problem: thread synchronization. I have consider two methods: Synchronize with mutex. I/O thread lock a mutex before execute handler function and map thread lock same mutex before it execute map's update. Execute all handler functions in map's thread, I/O thread only queue the incoming handler and let map thread to pop the queue then call handler function. These two have a disadvantage: delay. For method 1, if the map's tick function is running, then all clients' request need to waiting the lock release. For method 2, if map's tick function is running, all clients' request need to waiting for next tick to be handle. Of course, there is another method: add lock to functions that use data which will be accessed both in I/O thread & map thread. But this is hard to maintain and easy to goes incorrect. It needs carefully check all variables whether or not accessed by both two kinds thread. My problem is: is there better way to do this? Notice that I said map is logic concept means no interactions can happen between two map except transport. I/O thread means thread in 3rd part network lib which used to handle client request.

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• Cannot Login as root

  - by Josh Moore

  At my work we ship our product on pre-installed servers as a software/hardware package. We are using open SUSE 10.3 for the OS and we setup and we always log in with the root user to do maintenance on the box. Recently we just had box returned to us that the customer said the could not longer connect to the box through the network interface. So when I started to work on the box I run into the this problem: At the command prompt to login i type the user name "root" and hit enter. Then even before it asks me for a password I get "Login incorrect". I have never seen this behavior before and could not find any information about it online. Does anybody know what is going on? Thanks.

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• Internet sharing over LAN on Windows Server 2012

  - by USER

  I have a DSL modem connected to a server (ON NIC1) running Windows Server 2012 and 7 computers (running Windows 7 32-Bit) connected to a server though a network switch (ON NIC2). I shared the internet connection from the server through DHCP so I am able to access the internet from those 7 computers, but I am unable to: Access Google.com Activate Windows Update Windows An error is arising that says UNABLE TO ACTIVATE WINDOWS Activation Error Code: 0x80072EE2 Firewall and Anti-Virus are off on both the Server and the Clients. Is there is any additional setting that I want to do?

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• Google Music Player doesn't work

  - by EricoPF

  I'm trying to log in on Google Music Player application but doesn't work. I get the message below: Login Failed Could not identify your computer. Learn More On Google Help it says that it doesn't run on virtual machines, which is not my case, but I have a virtualbox installed though, and it says some people get to work if they disable their bridge network. The thing is I don't have any bridge interface, even if I remove all virtualbox modules I still get this message. This is my ifconfig output: lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:15374 errors:0 dropped:0 overruns:0 frame:0 TX packets:15374 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1455889 (1.4 MB) TX bytes:1455889 (1.4 MB) wlan0 Link encap:Ethernet HWaddr 94:db:c9:b2:1b:d7 inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::96db:c9ff:feb2:1bd7/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:828467 errors:0 dropped:0 overruns:0 frame:0 TX packets:568040 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1086663025 (1.0 GB) TX bytes:72984931 (72.9 MB) Any ideias ? Thanks guys! Cheers.

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• Unauthorized computer use via keyboard or remote access?

  - by brydaverambo

  I’m suspecting my computer is being used when I’m not at home. This is happening either physically or remotely. My wireless switch is off. Is there any way possible to detect and/or monitor activity without purchasing software? My settings are being changed as well as passwords (Bios PW was changed and I cannot access Bios settings). I connect via the network cable. Is it possible for someone (in range) to connect to my laptop even if the wireless switch is off? This is a Dell Inspiron 1720 with the WLAN 1395 card. Here’s the kicker. When I try to download freeware for monitoring activity, I am not allowed to do this! ????

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