Search Results

Search found 19145 results on 766 pages for 'network bridge'.

Page 274/766 | < Previous Page | 270 271 272 273 274 275 276 277 278 279 280 281  | Next Page >

• Homework with allocate subnet IP address

  - by Don Lun

  I'm having difficulty solving a subnet allocation homework problem. Assume that a university has an address block 128.205.224.0/19. It has to allocate addresses for 2 departments' networks, each of size 1800, and for 4 offices, of sizes 550, 600, 650, and 750 nodes respectively. Assuming that the university network allocates addresses sequentially from the beginning of the allocated allocated address space, what are the prefix allocations for these subnetworks? I first thought in this way: There should be 6 subnets in the network. So I need 3 bits for the subnets. So 3 + 19 = 22 bits should be the network bits. Then there are only 10 bits left. 2^10 = 1024 < 1800, so this cannot work. Could you guys give me a hint or some thoughts for solving this problem?

  Read the article

• Why does eth0 show an IP if I'm booting into runlevel 1?

  - by banjer

  I'm having some issues with networking on a new Linux server I'm building. The OS is SLES 11. When booting into runlevel 1, I see that eth0 is showing an IP. Physically, there is a network cable plugged into the card associated with eth1, and then there is a network cable plugged into a QLogic iSCSI card (eth4, not shown). I've been troubleshooting this for awhile, and it seems like eth0 is somehow getting assigned an IP, even though it isn't configured in Linux or even plugged into the network for that matter. Thoughts? ifconfig -a Here is the ifconfig output (Sorry, I need more rep before I can post images on SF...)

  Read the article

• Hyper-V virtual machine unable to get IP address from DHCP server running on same physical box

  - by Bronumski

  We have a Windows server 2008 R2 with two network cards running AD, DHCP, DNS and Hyper-V The first nic is setup with a static IP address and DHCP, WDS, and DNS are bound to it. The second nic is configured in Hyper-V to be only used by Hyper-V and has been automatically configured so that only the virtual switch is enabled on the adapter. DHCP and DNS work fine for all physical machines on the network. It also works for Virtual Machines running on another physical box. Virtual machines that are bound to the virtual switch network adapter are unable to get a IP address. If the virtual machine is given a static IP address with correct subnet, gateway and dns everything works. Has anyone else got this working?

  Read the article

• 2 routers, both DHCP, no IP assigned

  - by piobyz

  I can't get DHCP to assign IP to my wireless devices. My network config is as follows: Nanostation5 Linksys WRT350N, which is connected with Nanostation via its INTERNET port. Nanostation: LAN IP Address: 192.168.1.20 WLAN IP Address: 192.168.0.79 Network Mode: Router and is getting its IP via DHCP from my ISP Netmask: 255.255.255.0 Gateway IP: 192.168.1.1 LAN Network settings: IP Address: 192.168.1.20 Netmask: 255.255.255.0 Enable NAT: YES ENABLE DHCP Server: YES Range 192.168.1.100 ~ 250 Netmask: 255.255.255.0 Enable DNS Proxy: YES Linksys: Internet Connection Type: DHCP Router IP: 192.168.2.1 Subnet Mask: 255.255.255.0 DHCP: Enabled Start IP: 192.168.2.100 ~ 120 Advanced Routing: NAT: Enabled What I can do is connecting manually with this config: IP: 192.168.2.101 Subnet Mask: 255.255.255.0 Router: 192.168.2.1 DNS: 192.168.1.20 Search domains: WRT350N I want to be able to connect to both routers independently(now its 192.168.1.20 for Nanostation, and 192.168.2.1 for Linksys) and connect any wireless device using DHCP. What should be IP ranges, masks, etc. on both devices?

  Read the article

• NVidia with Optimus conflicting in Ubuntu 12.04

  - by Humannoise

  i have recently installed Ubuntu 12.04 in a Intel Ivy Bridge with integrated graphics and NVidia GPU with Optimus tech, however i cant manage it to work properly. I have already passed by the solution of bumblebee project, however iam got the following message when try to run anything with nvidia card( e.g. with optirun firefox): [ERROR]The Bumblebee daemon has not been started yet or the socket path /var/run/bumblebee.socket was incorrect. [ERROR]Could not connect to bumblebee daemon - is it running? Since the nvidia card is not working properly, some softwares like Scilab, that make use of X11 system for graphic handling and plotting, wont work too. my bios has no option concerning graphics card and the log of daemon returned: Jul 5 16:10:51 humannoise-W251ESQ-W270ESQ bumblebeed[980]: Module 'nvidia' is not found. Jul 5 16:10:51 humannoise-W251ESQ-W270ESQ kernel: [ 17.943272] init: bumblebeed main process (980) terminated with status 1 Jul 5 16:10:51 humannoise-W251ESQ-W270ESQ kernel: [ 17.943288] init: bumblebeed main process ended, respawning Jul 5 16:10:51 humannoise-W251ESQ-W270ESQ bumblebeed[1026]: Module 'nvidia' is not found. The lspci -nn | grep '\[030[02]\]:' returned: 00:02.0 VGA compatible controller [0300]: Intel Corporation Ivy Bridge Graphics Controller [8086:0166] (rev 09) 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:0de9] (rev a1) Ok, for the command dpkg -l | grep '^ii' | grep nvidia i got : ii bumblebee-nvidia 3.0-2~preciseppa1 nVidia Optimus support using the proprietary NVIDIA driver ii nvidia-current 302.17-0ubuntu1~precise~xup1 NVIDIA binary Xorg driver, kernel module and VDPAU library ii nvidia-current-updates 295.49-0ubuntu0.1 NVIDIA binary Xorg driver, kernel module and VDPAU library ii nvidia-settings 302.17-0ubuntu1~precise~xup3 Tool of configuring the NVIDIA graphics driver ii nvidia-settings-updates 295.33-0ubuntu1 Tool of configuring the NVIDIA graphics driver After full reinstallation, including the remove of any previous nvidia drive, lsmod | grep -E 'nvidia|nouveau' returned: nvidia 10888310 46 dmesg | grep -C3 -E 'nouveau|NVRM' returned things like: [ 1875.607283] nvidia 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 1875.607289] nvidia 0000:01:00.0: setting latency timer to 64 [ 1875.607293] vgaarb: device changed decodes: PCI:0000:01:00.0,olddecodes=io+mem,decodes=none:owns=none [ 1875.607363] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 302.17 Tue Jun 12 16:03:22 PDT 2012 [ 1884.830035] nvidia 0000:01:00.0: PCI INT A disabled [ 1884.832058] bbswitch: disabling discrete graphics [ 1884.832960] bbswitch: Result of Optimus _DSM call: 09000019 Some programs, like Scilab, are now working fine under optirun(e.g. >optirun scilab) call. Thank you.

  Read the article

• Podcast Show Notes: Architect Day Panel Highlights

  - by Bob Rhubart

  The 2010 series of Oracle Technology Network Architect Day events kicked off in May with events in Dallas, Texas, Redwood Shores, California, and Anaheim, California. The centerpiece of each Architect Day event is a panel discussion that brings together the day's various presenters along with experts drawn from the local Oracle community. This week’s ArchBeat program presents highlights from the panel discussion from the event held in Anaheim. Listen The voices you’ll hear in these highlights belong to (listed in order of appearance): Ralf Dossmann: Director of SOA and Middleware in Oracle’s Enterprise Solutions Group LinkedIn | Oracle Mix Floyd Teter: Innowave Technology, Oracle ACE Director Blog | Twitter | LinkedIn | Oracle Mix | Oracle ACE Profile Basheer Khan: Innowave Technology, Oracle ACE Director Blog | Twitter | LinkedIn | Oracle Mix | Oracle ACE Profile Jeff Savit:  Oracle virtualization expert, former Sun Microsystems principal engineer Blog | LinkedIn | Oracle Mix Geri Born: Oracle security analyst LinkedIn | A 10-minute podcast can't really do justice to the hour-long panel discussion at each Architect Day event, let alone the discussion that is characteristic of each session throughout each Architect Day. But at least you’ll get a taste of what you’ll find at the live events. You’ll find slide decks and more from this first series of 2010 events in the Architect Day Artifacts post on this blog. More dates/cities will be added soon to the Architect Day schedule.  Coming Soon Next week’s ArchBeat program kicks off a three-part series featuring Cameron Purdy,  Oracle ACE Director Aleksander Seovic, and Oracle ACE John Stouffer in a conversation about data grid technology and Oracle Coherence. Stay tuned: RSS Technorati Tags: oracle,oracle technology network,archbeat,arch2arch,podcast,architect day del.icio.us Tags: oracle,oracle technology network,archbeat,arch2arch,podcast,architect day

  Read the article

• Troubles uploading big pics to Picassa when pics are on NAS

  - by Bascy

  Hi all, I'm working from Vista a laptop on a WLAN, my pictures are all on a shared (samba) network drive on a FreeNAS system, which has a wired network connection to the WLAN router (DLink 655). I'v noticed that when i try to upload pics to picassa, and select files from the network share the pics won't upload successfully. If i first copy them locally (on the laptop) and then upload them to picassa, everything works fine. If i try to copy smaller pics (<500kB) it doesnt go wrong Anybody know what is going wrong here?

  Read the article

• Shared Folders in VirtualBox on Windows 7

  In my adventures with VirtualBox, my latest victory was in figuring out how to share folders between my host OS (Windows 7) and my virtual OS (Windows Server 2008).  Im familiar with VirtualPC and other such products, which allow you to share local folders with the VM.  When you do, they just show up in Windows Explorer and all is good.  However, after configuring shared folders in VirtualBox like so:   I couldnt see them anywhere within the machine. Where are Shared Folders in a VirtualBox VM? Fortunately a bit of searching yielded this article, which describes the problem nicely.  It turns out that there is a magic word you have to know, and that is the share name for the host OS: \\vboxsrv Once you know this, mapping shared folders is straightforward.  From Windows Explorer, click on the Map network drive option, and then map a drive to \\vboxsrv\YOURSHAREDFOLDER Like so: With that, its easy to share folders between the client and host OS using VirtualBox.  The reason I didnt simply use a standard network share to my host OS machine name is that both guest and host are in a VPN, and the VPN is over the Internet and in a different country, so when I went that route my files were (apparently) traveling from host to guest by way of the remote VPN network, rather than locally.  Using the Shared Folders feature dramatically sped up my ability to transfer files between Host and Guest machines. Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

  Read the article

• WolframAlpha Can Now Do In-depth Analysis of Your Facebook Account

  - by Jason Fitzpatrick

  If you’re a big fan of WolframAlpha’s ability to crunch the numbers on just about anything–and we certainly are–you’ll likely be just as delighted as we were to watch it massage the data from your Facebook account. Find out your most liked, discussed, and shared posts, see your Facebook habits, and other neat trends. I unleashed it on my account this morning, not sure what to expect from the results. Within the results tabulation WolframAlpha provided me with all sorts of neat data break downs. I now know exactly how many days it is to my next birthday, the composition of my aggregate posting habits (how many posts are status updates, links, or photos), the time of day when I do the most posting (and what the composition of those posts is), and my average post length. I also know my most liked post and my most commented on post. It will even crunch the numbers on your network of friends (60.6% of my friends are married, for example). By far one of the more interesting data analysis it does on the friendship data, however, is organizing all your friends into relationship clusters so you can see who in your Facebook network is friends with other people in your Facebook network. The service from WolframAlpha is free: simply visit the WolframAlpha search portal and type in “Facebook report” to start the process. You’ll be prompted to create a WolframAlpha account if you don’t have one and to authorize the WolframAlpha Facebook app to access your data. Your Facebook data is cached to your WolframAlpha account for one hour in order to crunch the numbers and display the results. WolframAlpha HTG Explains: How Windows Uses The Task Scheduler for System Tasks HTG Explains: Why Do Hard Drives Show the Wrong Capacity in Windows? Java is Insecure and Awful, It’s Time to Disable It, and Here’s How

  Read the article

• Windows Server 2008 Active Directory DNS setup

  - by Mister IT Guru

  I have to setup a small windows network inside my bigger linux/mac infrastructure. In order to get the windows clients logging onto the domain, I have had to make the DC their primary DNS server, which seems to have worked. I would much prefer to have one DNS server running on my network, or at least one authoritative server running on the network. I have a USG 200 router/firewall and I can configure some static records for DNS, but I an not sure what I need to put in order to get DNS and AD working together, and hints and tips appreciated.

  Read the article

• Tor Browser: how do I restart just the browser?

  - by GDR

  I'm using Tor Browser on Linux from time to time, but I close the browser because it has high memory usage, and leave Vidala running in background to help the network and relay traffic. The problem is, when I want to use Tor Browser again, I have to shut down Vidala and start it again. This takes time and has negative effect on the network. When I execute ./App/Firefox/firefox-bin, the browser starts but says it's not connected via Tor network. Any ideas how to start tor browser and make it connect to existing Vidala instance?

  Read the article

• Wireless not working on desktop with Asus USB-N13 (B1) wireless adapter

  - by user900749

  I am trying to connect my desktop to a wireless network. I have purchased an ASUS USB-N13 B1 adapter. I have followed instructions for installing drivers and disabling conflicting drivers. I have thoroughly searched and could not find a solution. The adapter is recognized and powered on. I have entered the ssid and password information into the wireless network configuration. Other machines can connect to this wireless network, and the machine can connect online via ethernet without issue. Here is the output of some commands which summarize my configuration, and might give some clues : ~$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu 12.04.1 LTS" ~$ uname -a Linux petra 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux ~$ lsusb Bus 001 Device 006: ID 0b05:17ab ASUSTek Computer, Inc. ~$ dmesg [ 1883.823150] wlan0: authenticate with 48:5b:39:e7:25:5e (try 1) [ 1884.020027] wlan0: authenticate with 48:5b:39:e7:25:5e (try 2) [ 1884.220025] wlan0: authenticate with 48:5b:39:e7:25:5e (try 3) [ 1884.420023] wlan0: authentication with 48:5b:39:e7:25:5e timed out Any assistance would be appreciated as I have been trying to get this machine online for several weeks now to no avail. Sincerely, Michael.

  Read the article

• acessing a subnetwork from within a vm

  - by yan bellavance

  I have a pc running windows 7. I have vmwareplayer running RHEL5 I have 1 physical ethernet connection. this ethernet connection is wired to a hub. there is another device on that hub that needs to be in a certain subnetwork (192.168.0.xxx)(lets call him device X) but the general network is 192.168.1.xxx How can I configure the network adapters so that I can ping device X from RHEL5 in the vm. Originally I could ping google from both windows and rhel (I was in the .1 network) but not device X since he is on a different subnetwork address. Now that I have put it on the .0 I can ping device X from windows but not from rhel5 and cannot access the web. I did this by manually setting the IP address.

  Read the article

• Separating two networks

  - by Farhan Ali

  I have two routers, R1 and R2. R1 (a stock linksys router running dd-wrt) is connected to internet and is serving internet to a network of 5 devices/PCs running a DHCP server, with a network of 192.168.1.0/24. R1 also serves internet services to R2. R2 (a ubuntu server 12.04) gets internet from R1. R2 has 3 PCs attached to it, runs a DHCP server with a network of 172.22.22.0/24. My requirement is that the clients on both sides should not talk to each other at all – with the exception that R1 clients may access the R2 router through its IP of 192.168.1.x. At the moment, R2 clients are able to ping R1 clients, which is unacceptable, whereas R1 clients cannot ping R2 clients, which is OK. I believe iptables could be set up but I don't know how.

  Read the article

• What should you say in post-interview?

  - by ??? Shengyuan Lu

  When you are leaving your company, you will be post-interviewed. As best practice, you shouldn't say something bad about your company, because it will "burn your bridge", another best practice is to keep silence if the company really sucks. I think if you decide to leave, there must be a reason(s) making you really unhappy, and I am sure you will have something really important to tell your employer. Then what is your attitude about post-interview?

  Read the article

• Acommodation deal annoucced for SQLBits 6

  - by simonsabin

  The details of our acommodation deal have been announced. We are going to be using the Park Paza on Westminster Bridge. http://www.parkplaza.com/hotels/gbwestmi The speakers are going to be based there so why not join us, its a short walk from the venue. We have a promotion code SQL6 which gives you a greatly reduced rate of £139 + VAT.  If you want cheaper then consider using Laterooms

  Read the article

• Acommodation deal annoucced for SQLBits 6

  - by simonsabin

  The details of our acommodation deal have been announced. We are going to be using the Park Paza on Westminster Bridge. http://www.parkplaza.com/hotels/gbwestmi The speakers are going to be based there so why not join us, its a short walk from the venue. We have a promotion code SQL6 which gives you a greatly reduced rate of £139 + VAT.  If you want cheaper then consider using Laterooms

  Read the article

• Lot of Multicast traffic on LAN

  - by Nel

  Recently the whole network at work is being hit by multicast traffic originating on the LAN itself. I did some investigating and the service which seems to be responsible is ws-discovery. I have attached a screenshot of wireshark capturing the traffic. I have tried shutting down the source machine from which it was originating, but the multicast traffic still seems to be present in the network. My network topology 2 subnets - 10.10.10.0/24 and 10.20.10.0/24. Gateway is a debian system. We have 3 switches for 3 floors. They are all unmanaged Dlink 24-port switches. Multicast blocking at switch level is out of the question. Any solutions? :(

  Read the article

• XP Mode as a server, Win 7 as a client

  - by Spyro

  I have two virtual machines (XP Mode). They are connected to each other by a network setting - Internal Network. It is the only working setting. This is the only way I got two virtual XP to ping each other. Now I want to connect each of them from the application that runs on Windows 7 which is hosting both virtual machines, but I can't do that. The firewall on both XP-Mode machines is disabled. Any other networking setting added as additional adapter on Xp-Mode machine does not allow me to connect from Windows 7. So my question is this - how to enable connection from Windows 7 application to XP mode application (client - server)? Point 2 (pass message) work perfectly because of the "internal network" setting. The problem is point 1 and 3.

  Read the article

• Can't connect to wireless-n in dual mode.

  - by Tyllyn

  I recently purchased a Acer Aspire Revo AR3610-U9022. This little nettop uses a Atheros AR5B91 Wireless Network Adapter. I also have a Netgear RangeMax NEXT Wireless Route (model WNDR3300). I have been using this router in dual mode (11G and 11N) on my normal desktop without a problem (Mode: Up to 270Mbps at 5GHz & 54Mbps at 2.4 GHz), but doing this, my Revo won't detect the 11N network as being around... my desktop still does, but the Revo, nope... just the 11G. However, when I switch my router over to just "Up to 270Mbps at 2.4GHz", it kills the 11G entirely, but the Revo recognizes the 11N network. I'm a programmer by trade, and this hardware-y stuff confuses me more than it should. Is there any way that I could set this stuff up so my Revo can connect to the 11N part of my router, but keep the 11G around? :) Thanks!

  Read the article

• GoF Design Patterns - which ones do you actually use?

  - by CraigS

  I'm trying to educate my colleagues in the area of design patterns. Some of the original Gang of Four patterns are a little esoteric, so I'm wondering if there is a sub-group of "essential" patterns that all programmers should know. As I look through the list, I think I've probably used - Abstract Factory Factory Method Singleton Bridge Facade Command Which ones do you actually use in practice, and what do you use them for? Link for those wanting a list of patterns

  Read the article

• Cannot Access a Shared Folder Using Windows 2008

  - by peter

  Hi All, I have a NAS drive, and this is sharing some folders. I cannot access those folders from a windows 2008 machine which is on the network. The are both connected to the same network switch. e.g. if I go like this, \\server\ or \\server\folder I get the message 'windows cannot access \\server check the spelling, click diagnose' etc. Error code: 0x80004005 The thing is that I can connect to this shared drive from a windows 7 laptop connected wirelessly to the same network. I can ping the server from windows 2008, but only if I use the IP address, not the server name.

  Read the article

• How to do simple multitasked loop processing over filenames with PowerShell?

  - by Ville Koskinen

  I'm batch transcoding some 50 GB of video files on a USB hard disk which is connected to a wlan router. The drive is mapped as a network drive on my Windows 7 laptop. The speed handicap of the wlan causes some parts of the processing to become unnecessarily slow, so I would like to do the following with PowerShell: List the names of the files on the network drive to be transcoded Copy the first file to a temporary folder on my laptop Simultaneously Transcode the file in the folder Begin copying the next file from the network drive to the temporary folder After transcoding and copy have both ended, Delete the file which has been transcoded from the temporary folder Begin transcoding next file in the temporary folder Loop until all files have been processed How would I be able to do this with PowerShell? The multitasking part is an obstacle for my skill/persistence combination.

  Read the article

• Setting up 802.1X wireless connection on OSX

  - by hizki

  I am an OSX user, I have Snow Leopard 10.6.5 and an updated AirPort. I am trying to connect to my university's wireless network, but it has a complex security that I am having trouble defining... Here there are instructions for connecting with Windows XP, Windows 7 and Linux. Can someone please instruct me what should I do to set up this network on my MAC? Thank you. P.S. I have had previous success in setting up this network, but I have no idea what I did that made it work. Since I updated my AirPort it worked only seldomly and very slowly... Before the update, even when it worked it never remembered my password.

  Read the article

• I am trying to set up a ubuntu sever 12.04 on my machine

  - by Jseb

  I am trying to set up a server on my home network which will eventually host rails. I am not great in linux server and i try to follow the prompt. I did succesfully get to a black screen which then prompts me to a username then password to then do anything ( assuming). However here what i try to do I kinda fellow his tutorial http://www.ubuntugeek.com/step-by-step-ubuntu-11-04-natty-lamp-server-setup.html but however the command where not 100% like him not in same order but same idea. Then i want to install ubuntu server with gui here the command i try with sudo apt-get upgrade sudo apt-get install ubuntu-desktop Which however give me the following error Err http... inRelease w Failed to fetch ht... So been ignored if i try the desktop one i get E: unable to locate package ubuntu E: unable to locate package desktop So i am assuming i am not connected to the internet, so i try the following command sudo vi /etc/network/interfaces here the output it gives me and i know my gateway on my laptop is 192.168.1.1 address: 192.168.1.148 netmask: 255.255.255.0 network: 192.168.1.0 broadcasts: 192.168.1.255 gateway: 192.168.1.1 Btw i do not know the command to get out of vi and saving it. Err http://us.archive.ubuntu.com precises InRelease Err http://us.archive.ubuntu.com precises-updates InRelease Err http://us.archive.ubuntu.com precises-backports InRelease Reading package lists... Done W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/precise/InRelease W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/precise-updates/InRelease W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/precise-backport/InRelease

  Read the article

< Previous Page | 270 271 272 273 274 275 276 277 278 279 280 281  | Next Page >