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  • Ubuntu 12.04 share the internet over WiFi from wvdial?

    - by Sour Lemon
    I have just installed Ubuntu 12.04 on a separate partition on my hard drive so I can dual boot to either Windows 7 or Ubuntu. I am living in Japan and so I'm using a mobile broadband USB device called "Softbank C02LC". By default it seems that this device isn't recognised so I did the following: Terminal: sudo su nano /usr/bin/usbModemScript Nano: #!/bin/bash echo 1c9e 9900 > /sys/bus/usb-serial/drivers/option1/new_id Terminal: chmod +x /usr/bin/usbModemScript nano /etc/udev/rules.d/option.rules Nano: ATTRS{idVendor}=="1c9e", ATTRS{idProduct}=="9900", RUN+="/usr/bin/usbModemScript" ATTRS{idVendor}=="1c9e", ATTRS{idProduct}=="9900", RUN+="/sbin/modprobe option" which made the device visible from the network manager etc. However even though I set up my details correctly when I created a new connection (Correct username, APN etc) as soon as I try to connect it almost immediately disconnects. Because of this I then followed the instructions at this site: http://debugitos.main.jp/index.php?Ubuntu%2F%A5%E2%A5%D0%A5%A4%A5%EB%A5%A4%A5%F3%A5%BF%A1%BC%A5%CD%A5%C3%A5%C8 And I ended up using the c02lc_connect script at the bottom of the page to connect to the internet. The file contains the following bash script: #!/bin/sh usbinterfece=/dev/ttyUSB2 VID=1c9e PID=9900 WRONG_PID=f000 LSUSB=/usr/sbin/lsusb GREP=/bin/grep MODPROBE=/sbin/modprobe SWITCH=/usr/sbin/usb_modeswitch SWITCH_D=/etc/usb_modeswitch.d WVDIAL=/usr/bin/wvdial SLEEP=/bin/sleep SUDO=/usr/bin/sudo WHICH=/usr/bin/which switch_config="$SWITCH_D/$VID:$WRONG_PID" if ! [ -x $WVDIAL -a -x $SWITCH ]; then echo "Install wvdial and usb_modeswitch." exit 0 fi check_usb() { local vid="$1" local pid="$2" ($LSUSB | $GREP "$vid:$pid") } if ! (check_usb "$VID" "$PID"); then echo "Cannot find modem device..." if (check_usb "$VID" "$WRONG_PID") && ( [ -f "$switch_config" ] ); then echo "The device is attached but its mode is wrong." echo "Try usb_modeswitch..." $SUDO $SWITCH -c "$switch_config" $SLEEP 1 if (check_usb "$VID" "$PID"); then echo "Successfully switched the mode." else echo "Failed to switch the mode..." exit 1 fi else exit 1 fi fi if [ ! -c "$usbinterface" ]; then $SUDO $MODPROBE usbserial vendor=0x$VID product=0x$PID $SLEEP 2 fi $SUDO $WVDIAL which works completely fine - no problems what-so-ever. But we also have 1 more laptop here which I need to share the internet connection with. In Windows 7 I do this with the Connectify program, and in Ubuntu I have seen that you can do things like set up hotspots etc. But because I am using WvDial I am not sure how I would share the internet. I am only beginning to use Ubuntu but unfortunately until I can figure out how to share the internet over WiFi when connected via WvDial I have to stick with Windows. If you have any ideas on how to do this it would be much appreciated!

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  • A Code Statistics Utility

    - by TATWORTH
    SourceMonitor Beta Test Version 2.6.2.102 At http://www.campwoodsw.com/smbeta.html there is an excellent utility for producing statistics about your code base. This produces very useful statistics about your such as total lines and percentage of documentation. Recently it was extended with a new complexity metric that counts switch statements as one (all case statements within each switch block are ignored)"

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  • How should I structure my turn based engine to allow flexibility for players/AI and observation?

    - by Reefpirate
    I've just started making a Turn Based Strategy engine in GameMaker's GML language... And I was cruising along nicely until it came time to handle the turn cycle, and determining who is controlling what player, and also how to handle the camera and what is displayed on screen. Here's an outline of the main switch happening in my main game loop at the moment: switch (GameState) { case BEGIN_TURN: // Start of turn operations/routines break; case MID_TURN: switch (PControlledBy[Turn]) { case HUMAN: switch (MidTurnState) { case MT_SELECT: // No units selected, 'idle' UI state break; case MT_MOVE: // Unit selected and attempting to move break; case MT_ATTACK: break; } break; case COMPUTER: // AI ROUTINES GO HERE break; case OBSERVER: // OBSERVER ROUTINES GO HERE break; } break; case END_TURN: // End of turn routines/operations, and move Turn to next player break; } Now, I can see a couple of problems with this set-up already... But I don't have any idea how to go about making it 'right'. Turn is a global variable that stores which player's turn it is, and the BEGIN_TURN and END_TURN states make perfect sense to me... But the MID_TURN state is baffling me because of the things I want to happen here: If there are players controlled by humans, I want the AI to do it's thing on its turn here, but I want to be able to have the camera follow the AI as it makes moves in the human player's vision. If there are no human controlled player's, I'd like to be able to watch two or more AI's battle it out on the map with god-like 'observer' vision. So basically I'm wondering if there are any resources for how to structure a Turn Based Strategy engine? I've found lots of writing about pathfinding and AI, and those are all great... But when it comes to handling the turn structure and the game states I am having trouble finding any resources at all. How should the states be divided to allow flexibility between the players and the controllers (HUMAN, COMPUTER, OBSERVER)? Also, maybe if I'm on the right track I just need some reassurance before I lay down another few hundred lines of code...

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  • hpdv6 6080 two graphic card

    - by Taher
    My laptop has two graphic card one is ati radeon 6770m and other intel sandybridge. i install ati driver from repository but i can't select ati as my graphic card after installing ati ubuntu lose 3d mode how can i set graphic card? and switch between two graphic cards? or how can i set one of them? my laptop is hp dv6 6080 and i add blacklist radeon to /etc/modprobe.d/blacklist.conf and add below lines to /etc/rc.local file: modprobe radeon echo OFF /sys/kernel/debug/vgaswitcheroo/switch exit 0

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  • How do I "alt-tab" between windows using Gnome 3?

    - by josmh
    All of the references I've found for Gnome 3 keyboard shortcuts list that alt+tab switches between applications and alt+` switches between windows (some actually say alt+~, but I think they're mistaken, and I've tried both anyway). Maybe that functionality works for Gnome 3 on Fedora or something, because no matter the key combo I try, nothing will switch between windows except for opening the alt+tab dialog and using arrow keys to navigate it (and at that point it's faster to just use a mouse..). How do I quickly switch between windows in Gnome 3?

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  • Is it possible to use multiple desktop environments on same system?

    - by Kshitiz Sharma
    I am using Ubuntu 12.04. I want to try out KDE and other desktop environments. But I'm not sure if I'll like them enough to switch permanently. I want to be safe and make a transition in a piecemeal fashion. Is it possible to install KDE on Ubuntu and yet not do away with the default Unity shell? Could I install multiple desktop environments and switch between them by tweaking some startup configuration and then rebooting?

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  • When controlling from VNC, only mouse cursor moves

    - by pgrytdal
    If I am accessing my computer through VNC, when I am in windows A (example: Terminal) and I change to Window B (example: Firefox) on the host computer, everything is fine and it switches. But on the computer or other device I'm accessing FROM, it doesn't switch windows. When I move the mouse, both on the host computer, and the device I'm accessing from, the mouse moves, but the window still doesn't switch. Can this be fixed?

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  • Will Java or C# be a better career choice for the future? [closed]

    - by learner_17
    I am in a tough situation here,and i know this question has been asked a thousand times.I have been asked by an employer to switch to java ,although i am currently working on c# for the last 3-4 months. my dilemna is should i go for it? is java tough?and if i go whats the best way to learn java. And if I dont switch how do i sharpen my c# skills - or should is say my whole grip over the entire .net framework.

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  • What is the use of the workspaces?

    - by kniwor
    I was wondering what use are the workspaces at all, if any. I notice that when I switch to another workspace, all the apps still show in the unity bar and all the icons are still present in the taskbar, and clicking on them takes me to the workspace with those windows. So really, why would I ever care to switch it, and for what purpose? It would have made sense if switching windows completely gave be an empty unity bar where I can start multiple, independent instances of various applications.

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  • How to disable monitor auto detection in Windows 7?

    - by Jay Yother
    I am currently running Windows 7 Ultimate 64-bit with a dual monitor setup with an NVIDIA 7950 GT graphics card. One monitor is dedicated to this machine and the other monitor is connected to a DVI KVM switch. When I switch to my other computer, Windows 7 disables the monitor. However, when I switch back it does not re-enable the monitor. The only circumstance that automatically re-enables the second monitor is when I switch back after Windows has put the monitors into power save mode. I am continually having to bring up the NVIDIA control panel to have it re-enable the monitor. Under Windows XP I would just disable the NVIDIA service to prevent it from auto-detecting the monitor (which doesn't solve the problem under Win7), and in Vista there was a registry hack that would prevent this. It looks as though that has been removed in Windows 7. I have found similar questions posted on this site, but nothing that matches my problem exactly. The following link is the question that comes the closest, but does not provide a solution to the problem. http://superuser.com/questions/96683/how-to-fix-monitor-detection-on-windows-7 Is there a way in Windows 7 to disable monitor auto-detection?

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  • Home Networking Questions

    - by Eddie Parker
    Hello: I'm looking to wire my home with CAT-X (where X is probably going to be CAT-6, unless someone can convince me differently. ;) ). I'm seeking advice on what equipment I'll need for the job, and any things I should watch out for. It's a two story half-duplex I'll be wiring, roughly about 1800 sq ft. Here's what I believe I need so far: Bulk CAT-6 Ethernet cabling CM Rated Gigabit switch(es?) Patch panel Equipment for cutting, terminating wire, fishing through walls, etc Wall outlet covers, etc. Questions I have: Does it matter the MHz rating on the Ethernet cable? If so, why? I have two gigabit switches currently, an 8-port and a 5-port. Should I buy one massive switch to cover all the connections I need, or should I just chain the two together and buy a switch for however many other connections I need? Do I really need a patch panel? I understand it keeps the cables looking cleaner than coming out of a hole in the wall, but is there some other product I can use, perhaps combining a switch with a patch panel or some such? Ideally I'll have all this running out of a relatively small closet, so the less components (or smaller) the better. Any advice, links, or suggested product to use/avoid would be appreciated!

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  • VLAN support on Juniper EX - 2200 switches

    - by liv2hak
    I have 6 Juniper switches (EX - 2200) connected to each other as shown in the network topology below. I have two PC's that I am using PC1 - (used for configuring the 6 switches via minicom) PC2 - to monitor the traffic between the switches via the Ports that are marked with arrows in the diagram. STEP 1: I create a new vlan On Switch 3 (SW3) that includes Port 12 and Port 22. I also assign l3-interface to the vlan (vlan_2) with ip address - 192.168.1.7. Now I plug-in Port 0 of Switch 3 on PC2. Now I try pinging 192.168.1.7 from PC2 (192.168.1.10) I want to know what will happen? My postulation is that I will not be able to ping SW3 from PC2.This is because SW3 (Port 12 and Port 22) is a part of a vlan_2 and vlan_2 logically breaks up broadcast domains and so 192.168.1.7 will not be reachable from 192.168.1.10. Now I have an l3-interface on SW1 with IP 192.168.1.1 using default vlan( vlan-id 0). Similarly I have enabled IP on SW2 - 192.168.1.2 SW3 - 192.168.1.3 SW4 - 192.168.1.4 SW5 - 192.168.1.5 SW6 - 192.168.1.6 all using default vlan. Now I plug in Port 12 of SW3 (blue cable) into the PC2. I try to ping 192.168.1.1 from PC2. What will happen at this stage.? My postulation is that I will be able to ping switch 1.Is this correct? Also another question is that can a single port on a Switch be added multiple VLANS? I am a beginner at network configuration? Any help would be highly appreciated. (Please ignore the CISCO symbol on the switches in the diagram.All swithes are Junper EX 22-00.)

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  • What device can create wireless network while connecting to an ethernet router

    - by Nicolo
    Hi, I have access to an ethernet port of a wireless router. I simply connect my laptop to it via an ethernet cable. There are a total of four such ports on the wireless router. Now I want to connect a device (a wireless access point? wireless bridge? wireless switch?) via an ethernet cable to one of the other ethernet ports of the router. I want this device to act as a kind of wireless switch - it should "split" the ethernet connection coming from the router to two or more computers that connect to this device via a wireless. Basically, I have a wireless router with its wireless function switched off. I don't know the password for that router so can't activate the wireless function. Don't know the password of the ISP either. The only thing I can do is to connect via ethernet cable to the wireless router and this does not require a password. Now I want to use that connection and build a wireless upon it. What kind of device do I need? I am not really very well informed about network management and find the descriptions "wireless access point", "wireless bridge", "wireless switch" confusing. I know what an ethernet switch is - what I need is a device which would do the same but by allowing the clients to connect to it via a wireless. What kind of device would do that? Any recommendations about specific products?

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  • Linksys/Cisco Small Business SRW-Series (ie SRW248G4) - Overcoming the Limitations

    - by Warren P
    We just purchased a Cisco/Linksys SRW 248G4 switch to try it out. We have always had unmanaged switches before, and this is our first "somewhat managed" switch. So far the major limitations are: Only Internet Explorer 6 (manual says IE 5.5!) works for the web interface SSH exists but is not practically useable because the only key length that is supported is no longer even used by most modern SSH installs. (I get the error "RSA modulus too small" in openssh 4.x/5.x) This is with the latest firmware revision, I believe, although Cisco's website does not actually tell you what version you're downloading. All in all, I think, they must be trying to tell me that if I want a good-quality switch, I shouldn't buy these SRWs and should buy a Dell or an HP ProCurve, or save up my pennies, and buy a Catalyst. The question here, then, at long last: Has anyone gotten the web-browser to work via some IE 7 or IE 8 compatibility mode settings or used another browser (Opera? KDE/Safari/WebKit?) and spoofed IE6? Is there any way to get the SSH key length upgraded? I'm guessing a 0% chance of a yes on that last one. I found an XP machine, used telnet (via PuttyTel.exe) and IE6 to set this up, and I doubt we'll have to touch it again. Which is fine with us. But it would be nice if I could administer this thing from either (a) a linux box, or (b) my primary desktop which is windows 7. It looks like XPMode with IE6 on the virtual XP machine may be my only way to administer this type of switch via the web.

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  • 1000Base-X layer 2/MAC address details

    - by user69971
    A layer 2 Ethernet frame is sent with a source and destination MAC address. Given a 100Base-TX (copper) trunk between two Cisco switches, I can do a "show interface fa 0/0" on S1 to see the MAC address assigned to the trunking interface, then go to Switch2 and do a "show mac address-table" and find the MAC address of the S1 fa 0/0 interface as a dynamically learned MAC in the table. Given a similar setup with a 1000Base-X (fiber GBIC) trunk, the MAC address shown in "show interface gi 0/0" on S1 does not show up in the MAC address-table of S2. Everything I can find online indicates that 1000Base-X uses largely the same layer 2 format as copper connections. There's some slight alterations - minimum frame size is slightly larger - but the fundamentals of the frame structure appear to be the same, including transmission with a source and destination L2 address. Why doesn't the address of gi 0/0 show up in the MAC address table of the connection switch? The only thing which seems to make sense would be that the GBIC has its own MAC address, almost as if its acting as a mini 2-port switch or hub, with the switch-assigned MAC address showing up on the interface connection and a different MAC address assigned to the fiber side. If this is the case, is there any way to see the GBIC MAC address on the switch? (I've tried to look up the details in IEEE 802.3z but it doesn't seem to be available without an IEEE membership or purchasing the standard. I find the base 802.3 PDFs for download, but not 802.3z.)

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  • Hints on diagnosing performance issue in OpenBSD firewall

    - by Tom
    My OpenBSD 4.6 pf firewall has started having really bad performance in the past few weeks. I've isolated the firewall (as opposed to the WAN connection, switch, cable, etc.) as the problem, but need a hint on how to further diagnose or fix the problem. The facts: Normal setup is: DSL Modem - FW Ext. NIC - FW Int. NIC - Switch - Laptop Normal setup described above gives only 25 Kbps! Plugging the laptop straight from the DSL modem gives a 1 MBps connection (full speed, as advertised). Therefore, the DSL connection seems to be OK. Plugging the laptop directly into the firewall's internal NIC (bypassing the switch) also gives only 25 Kbps. Therefore, the switch does not seem to be a problem. I've replaced the ethernet cables, but it didn't help. Here's the weird thing. Reloading the ruleset (/sbin/pfctl -Fa -f /etc/pf.conf) causes the laptop's connection to go up to 1 Mbps (i.e. full speed) for a few minutes before it gradually degrades back down to 25Kbps again. Any ideas on what's wrong or how I could further diagnose the problem?

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  • Inter-VLAN Malicious Code Scanning

    - by Jackthedog
    I am trying to find an inbuilt solution on a Cisco Catayst 3750X Switch to scan all traffic routed from one VLAN to another for malicious code. The situation is that we currently have a development environment which is currently being redesigned to upgrade the network infrastructure to use the 3750X switches to manage server and workstation connectivity as well as inter-VLAN routing. We also have another system that is responsible for taking the builds created on the development environment and imaging various HDDs. Because these are two separate systems, we have a requirement in the workplace to anti-virus scan any data transferred between these systems. This is done by copying the data from the originating system to external USB HDD, scanning in a standalone workstation and then copying the data on to the receiving system. As you can imagine this is extremely tedious and impractical most of the time... (I don't make the rules). Anyway, with this redesign going on, we would like to join the imaging system to the network infrastructure of the development system, keeping separation by the use of VLANs and restricting traffic by using ACLs. As we still have the requirement to scan all traffic I would like to configure some sort of malicious code scanning when ever traffic is routed between these VLANs. I am aware I could install a separate in-line IPS/IDS device, however both systems will be using multiple ports on the switch (obviously), and we won't be able to put a device on each port. I would would prefer not to add additional hardware if the 3750x switch is capable of doing the job. Is anyone aware of any Cisco solution that I could use here, that ideally can be incorporated into the 3750x switch? Thanks in advance.

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  • Disable write-protection on Micro SD

    - by Tim
    My task today is to open up and copy some files to 700 brand new micro SD cards. As I get going on this task I am finding that some of the Micro SD cards are telling me "sorry this drive is write protected" To copy the files I am using a standard SD to micro SD card adapter, and a USB SD card reader / writer. I have ensured that the switch is set to OFF on all of my adapters. As soon as I get a Micro SD that tells me it is write protected I can use the same adapter with another micro SD and it works fine, so I know the problem is not with my adapters. My question is: How can I disable the write protection on a Micro SD card? This eHow article seems to indicate that there is also a physical switch on Micro SD cards. However I have personally never seen a Micro SD with a physical switch, and none of the ones I am using today have said switch. Since these cards are brand new and thus empty are the ones that are telling me they are write protected simply useless? Could this be caused by some sort of defect in the cards?

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  • Why does just splitting an Ethernet cable not work?

    - by Sin Jeong-hun
    I thought the Ethernet is logically a one-line communication bus (for argument's sake, I am excluding hubs). All machines attached on the bus hears the same signals and the machines themselves try to avoid collisions by randomly backing off. http://computer.howstuffworks.com/ethernet6.htm If so, why would splitting one Ethernet line from my home router into two and connecting two computers not work? Why do I have to add a switch to it? *What the Internet said would not work. [4 port home router] ------[one Ethernet cable]-----[simple splitter]======[two computers] *What the Internet said I should do [4 port home router] ------[one Ethernet cable]-----[switch]======[two computers] Is this because of the signal degradation (reduced electric current)? Thank you for all the answers! The reason why I did not just use the two ports of my home router is... The 4-port gigabit router is in my room, and I had put a computer in another room (also my room, though). Since a wired network is far more reliable and secure, I had bought a long Ethernet cable and and connected the computer to the router. Now I was thinking about adding another computer to that room. I could buy another long Ethernet cable, but then there will be two cables between the rooms. The one line already is a minor annoyance, so I thought if I could share the one line between the two computers in that room. A switch would work, but it requires power and is a little bit pricey. That is why I wondered why it would not work to simply split the physical Ethernet cable. Apparently I do not completely understand how Ethernet and a switch work. I just have some bit of knowledge I heard in my college class.

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  • Correct way to set up office network - 8 workstations, a file server and a staging server

    - by naunu
    Our office had this old school windows 2003 domain setup, our server caught fire, and now we are looking to do it right from scratch. Here is what we need: 5 PC and 3 Mac workstations for web development, they will each have WAMP/MAMP setup on them, managed by their developers. We will have a file server for assets, and a LAMP server with an external IP for staging. Here is what we have to work with: 5 IP addresses, brand new PC file server with windows 2008 SE, D-Link DSS-16+ 16 port switch, belkin 5 port wireless router, cable modem with 4 ports. How I have it set up now (this is a temporary makeshift setup): Cable modem = LAMP server, wireless router Wireless router = Switch = All of the workstations and file server (setup as a workgroup). We have noticed our internet is very slow with us all plugged in to the switch, and the switch plugged in to the router. I am not positive, but I think it is because our router does not have NAT. We are also having problems with the MACs connection to the network drive - it keeps disconnecting. I want this done right, and we have a ~$600 budget to buy anything else we need. Does anybody have any advice for me? Should I set up a domain or workgroup?

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  • Hubs/switches taking out switches?

    - by Bart Silverstrim
    Here's the issue...we have a network with a lot of Cisco switches. Someone plugged in a hub on the network, and then we started seeing "weird" behavior; errors in communication between clients and servers, or network timeouts, dropping network connections, etc. It seemed that somehow that hub (or SOHO switch) was particularly freaking out our Cisco 3700 series switches. Disconnect that hub or netgear-type SOHO switch and things settled down again. We're in the process of trying to get a centralized logging server for SNMP and management, etc., to see if we can trap errors or narrow down when someone does this sort of thing without our knowledge because things seem to work, for the most part, without issue, we just get freaky oddball incidents on particular switches that don't seem to have any explanation until we find out someone decided to take matters into their own hands to expand available ports in their room. Without getting into procedure changes or locking down ports or "in our organization they'd be fired" answers, can someone explain why adding a small switch or hub, not necessarily a SOHO router (even a dumb hub apparently caused the 3700's to freak out) sending DHCP request out, will cause issues? The boss said it's because the Cisco's are getting confused because that rogue hub/switch is bridging multiple MAC's/IP's into one port on the Cisco switches and they just choke on that, but I thought their routing tables should be able to handle multiple machines coming into the port. Anyone see that behavior before and have a clearer explanation of what's happening? I'd like to know for future troubleshooting and better understanding that just waving my hand and saying "you just can't".

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  • Programmer configuring a new network

    - by David Lively
    I'm in the process of expanding my home network from a couple of laptops on a wireless Verizon FiOS router to include: Linksys 24-port switch Cisco Pix 515 Cisco 3640 router One new development desktop and three new machines to act as a db server, web server and a backup system. My company is moving offices and we've decommissioned some older hardware, which I was able to pick up for the cost of the labor to move it home from the office. The benefits to working with dedicated web and db servers are very valuable to me. I know very little about network topology, other than that everything plugs into the switch, which then plugs into the cheap Verizon router. (Verizon provides a coax connection that the router must translate into Ethernet before I can use it with any of this equipment). Questions: What is the recommended topology for this equipment? Verizon router - Pix - 3600 - switch? Is the 3600 even necessary or desirable? The Verizon router has one WAN port and 4 client ports, all 10/100. Is there any performance benefit at all to wiring multiple connections from the verizon router to the switch, assuming I don't use the Pix? Should I use the Pix? Software firewalls are a pain, and seem silly if I have a device like this lying around. Anything else I should know? Am I wasting my time with this? I also obtained a 7 foot rack, shelves, patch panels, UPS, patch panels, etc, which are going into a conveniently air conditioned closet. All constructive advice appreciated.

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  • Troubleshooting loss of network connectivity in Windows 2003 - What else to check?

    - by Benny
    We are facing a weird problem in our data center. Our Backup server (running EMC Networker) loses network connection every alternate day around 3:00 AM (Backup schedule starts at midnight). After 2 hours of outage, the network connectivity recovers automatically and back to normal. What we observed: It is unlikely to be network issue, since it is directly connected to server farm switch (layer 2 connection without any intermediate hops). Further, the server is connected to two different switches for Load balancing using Broadcomm Teaming. a) If it were a switch related issue it is unlikely that both the network ports go down, since they are connected to different switch. b) A possibility Vlan wide issue is also ruled out since other devices in the same Vlan are fine. c) Switch interface status is always up. But there are lot of packet drops during the outage period - Can be attributed to high interface utilization of the backup server (near 100%) d) Connectivity is restored without any change on network. Next suspect is resource utilization on Windows server. Both CPU and Memory have rarely exceeded 80%, but NIC card utilization is alarmingly high (near 100%) Not really sure how to investigate this?

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  • No internet access when using static IP

    - by Endy Tjahjono
    I have just upgraded to Windows 8.1, and after the upgrade process is finished, I can't connect to internet. I tried running the "Troubleshoot problems": It concluded that DHCP needs to be activated: I let it activate DHCP, and I got internet connection back. The problem is I want to set this PC to a certain IP address (the IP address that it has been using all this time). I am also using Hyper-V, which I suspect has something to do with this problem. After I regained internet connection, I tried running one of my Hyper-V VM. From inside the VM I can connect to internet. That VM has static IP address. I also noticed that in "Control Panel\Network and Internet\Network Connections", I usually have a network connection called vEthernet (Realtek PCIe GBE Family Controller Virtual Switch). I didn't find it there after upgrade. How do I set my PC to a static IP while retaining internet access in Windows 8.1? EDIT I have managed to recreate vEthernet (Realtek PCIe GBE Family Controller Virtual Switch) by unchecking Allow management operating system to share this network adapter in Hyper-V's Virtual Switch Manager and then checking it again. But when I changed the adapter to use static IP, it still can't connect to internet. Result of Get-NetAdapter -Name * | fl (with MAC address removed): Name : vEthernet (Realtek PCIe GBE Family Controller Virtual Switch) InterfaceDescription : Hyper-V Virtual Ethernet Adapter #2 InterfaceIndex : 5 MacAddress : 55-55-55-55-55-55 MediaType : 802.3 PhysicalMediaType : Unspecified InterfaceOperationalStatus : Up AdminStatus : Up LinkSpeed(Mbps) : 100 MediaConnectionState : Connected ConnectorPresent : False DriverInformation : Driver Date 2006-06-21 Version 6.3.9600.16384 NDIS 6.40 Name : Ethernet 3 InterfaceDescription : Hyper-V Virtual Ethernet Adapter #3 InterfaceIndex : 6 MacAddress : 55-55-55-55-55-56 MediaType : 802.3 PhysicalMediaType : Unspecified InterfaceOperationalStatus : Up AdminStatus : Up LinkSpeed(Gbps) : 10 MediaConnectionState : Connected ConnectorPresent : False DriverInformation : Driver Date 2006-06-21 Version 6.3.9600.16384 NDIS 6.40 Name : Ethernet InterfaceDescription : Realtek PCIe GBE Family Controller InterfaceIndex : 2 MacAddress : 55-55-55-55-55-57 MediaType : 802.3 PhysicalMediaType : 802.3 InterfaceOperationalStatus : Up AdminStatus : Up LinkSpeed(Mbps) : 100 MediaConnectionState : Connected ConnectorPresent : True DriverInformation : Driver Date 2013-05-10 Version 8.1.510.2013 NDIS 6.30

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  • Reducing video mode switching during Linux boot

    - by Zack
    When I boot up my desktop computer, which only has Linux on it, the video mode and/or console font gets switched four times: When GRUB starts, it switches from 80x25 text to a graphical mode so it can draw a pretty background behind its menu; GRUB then goes back to 80x25 text after I pick something from the menu; When the KMS driver for my video card loads, it switches to a much higher-resolution text mode (I don't know if this is a hardware text mode or not); Finally X starts and it goes graphics and stays that way. I think this last switch does not change the resolution of the video mode, only the graphicalness. I'd like to get rid of as many of these mode switches as possible. Ideally, when GRUB takes over from the BIOS it would go directly to the same high-resolution text mode that the KMS driver selects, and the display would stay in that mode till X starts and brings up graphics. I am under the impression that this is possible by mucking with the kernel command line and/or the GRUB console module load parameters, but I don't know the details. GRUB 1.98+20100706, kernel 2.6.32.15 using Nouveau video drivers. Distro is Debian unstable. Please no answers that involve recompiling anything or cobbling together bleeding-edge kernel/driver combinations, I don't care enough about this to go to that much trouble. EDIT: Tobu suggests setting GRUB_GFXMODE to the full pixel resolution of the monitor, and GRUB_GFXPAYLOAD_LINUX=keep to avoid the mode switch after the menu goes away. This does part of what I want, but winds up being worse overall. There's no mode switch after the menu, but there's still a painfully-slow screen repaint (I should probably just give up on GRUB's gfxmode, it's waaaay too slow at 1920x1200). More seriously, there's now a double mode switch when nouveaufb loads, along with fun-looking error messages in dmesg [ 5.923798] [drm] nouveau 0000:02:00.0: allocated 1920x1200 fb: 0x40250000, bo ffff8801ba5f4600 [ 5.923802] fb: conflicting fb hw usage nouveaufb vs EFI VGA - removing generic driver [ 5.923821] [drm] nouveau 0000:02:00.0: PFIFO_INTR 0x00000010 - Ch 1 ("PFIFO_INTR" message repeats 400+ times) [ 5.925609] Console: switching to colour dummy device 80x25 [ 5.925802] Console: switching to colour frame buffer device 240x75

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