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  • Backtrack, Wi-Fi not working

    - by hradecek
    I've installed Backtrack 5R3 KDE, and I realized that my wireless is not working, but wired is working fine. Here's the lshw output: *-network description: Ethernet interface product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:02:00.0 logical name: eth0 version: 05 serial: 04:7d:7b:b7:46:f8 size: 100MB/s capacity: 100MB/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=192.168.2.2 latency=0 link=yes multicast=yes port=MII speed=100MB/s resources: irq:42 ioport:2000(size=256) memory:f0404000-f0404fff memory:f0400000-f0403fff lspci output: 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 00:14.0 USB Controller: Intel Corporation Panther Point USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation Panther Point MEI Controller #1 (rev 04) 00:1a.0 USB Controller: Intel Corporation Panther Point USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1 (rev c4) 00:1c.1 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 2 (rev c4) 00:1d.0 USB Controller: Intel Corporation Panther Point USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA AHCI Controller (rev 04) 00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04) 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)

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  • Log connections to program

    - by Zac
    Besides for using iptables to log incoming connections.. Is there a way to log established inbound connections to a service that you don't have the source to (suppose the service doesn't log stuff like this on its own)? What I'm wanting to do is gather some information based on who's connecting to be able to tell things like what times of the day the service is being used the most, where in the world the main user base is, etc. I am aware I can use netstat and just hook it up to a cron script, but that might not be accurate, since the script could only run as frequently as a minute. Here is what I am thinking right now: Write a program that constantly polls netstat, looking for established connections that didn't appear in the previous poll. This idea seems like such a waste of cpu time though, since there may not be a new connection.. Write a wrapper program that accepts inbound connections on whatever port the service runs on, but then I wouldn't know how to pass that connection along to the real service. Edit: Just occurred to me that this question might be better for stackoverflow, though I am not certain. Sorry if this is the wrong place.

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  • Local Network - Windows 7 and Vista can't see each other

    - by ca8msm
    I've got a strange issue at home that has been bugging me for weeks, but I really need to get it sorted now so I'll detail as much as I can and hopefully someone can spot what might might be wrong. I have a wireless router connected to the internet and 3 devices connected to it. They are: Name OS Network IPv4 PC1 Windows 7 WORKGROUP 192.168.2.2 LAPTOP1 Vista WORKGROUP 192.168.2.3 PS3 192.168.2.4 and they all get their IP addresses dynamically. Both PC1 and LAPTOP1 can ping PS3 and get a response. PC1 and LAPTOP1 are unable to ping each other by ip address unless I ping by their name (which bizarrely shows that it is pinging via the IPv6 address). Also, to confirm this both PC1 and LAPTOP1 can ping each other via the long IPv6 address that they both have so they can obviously see each other just not via IPv4. I've disabled the firewalls on both machines as well to rule that out. I don't really know what IPv6 is used for and I've tried disabling it on both machines but all that happens then is that neither machine can see each other at all then. Does anyone have any idea of what may be stopping them seeing each other, any ways I can look at fixing this, or any network tools that may help identify where it is failing? Thanks, Mark

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  • What would cause my SendMail server not to acknowledge receiving a TCP Sequence?

    - by Mike B
    My TCP/IP Stack knowledge is a little rusty so please bear with me.... I have a CentOS 5.7 server with SendMail and am having seeing intermittent timeout issues sending email (particularly larger email) to other remote domains. It doesn't happen with all attachments or recipient domains. Just some. After some extended troubleshooting, I think I've narrowed it down to TCP Sequences not being acknowledged. Here's a breakdown of the TCP session from a packet capture I collected directly on my MTA (fooMTA): Packet 1 - 11: Standard TCP handshake followed by initial SMTP conversation. No errors. Packet #12 Recipient MTA: TCP sequence 231. Ack 91. Packet #13 FooMTA: TCP sequence 91. Ack 305. Packet #14 FooMTA: TCP sequence 1115. Ack 305. Packet #15 Recipient MTA: TCP sequence 305. Ack 2495. Packet #16 FooMTA: TCP sequence 2495. Ack 305. Packet #17 FooMTA: TCP sequence 5255. Ack 305. Packet #18: Recipient MTA: TCP sequence 305. Ack 5255. Packet #19: FooMTA: TCP sequence 6635. Ack 305. Packet #20: FooMTA: TCP sequence 8015. Ack 305. Packet #21: Recipient MTA: TCP Sequence 305. Ack 8015. Packet #22: FooMTA: TCP Sequence 10775. Ack 305. Packet #23: FooMTA: TCP Sequence 13535. Ack 305. Packet #24: Recipient MTA: TCP sequence 305. Ack 10775 Packet #25: FooMTA: TCP Sequence 14915. Ack 305 It keeps going like this with my server still thinking it hasn’t received sequence 305… in response the remote side eventually retransmits its prior data thinking that it never arrived. Eventually the gap gets so large that no new data is sent and the remote MTA keeps retransmitting old stuff. This contributes to an exponential backoff and eventually the remote side gives up. What’s strange to me is that I see the “missing” TCP sequence (305 in this case) arriving back to my server (via a packet capture collected directly from fooMTA) So I don’t get why my server keeps asking for it. Could this be firewall related? What would be the next step in troubleshooting?

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  • Wireless slow, but very odd

    - by Logman
    I have a HP Pavilion dv6 laptop, internet through the wireless timeouts. Even though it connects fine to the AP/router. The computer had a virus (searchnu?) and I backed up the usual and restored the laptop to factory image. Problem is after the restore the internet through the wireless the same still... and connected via wired and everything worked fine. I was able to update the whole system. Internet worked perfect, speed great. But the wireless still was pitiful. Ping tests with wireless are interesting: Google= 18ms Gmail= 18ms Yahoo= 1023ms 8.8.8.8=30ms Microsoft= Request Timed Out Bing= Request Timed Out msn= Request Timed Out even though I get 18ms with google, the pages take a long time to load. Is this a root kit? is it the wireless card in the laptop?

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  • How to uploads to the web work on local networks

    - by Saif Bechan
    Let's say I have two computers hooked up as a home network. They both use the same router, and the router is hooked up to the to the net. Now lets say I am working on computer A, and I can access files on computer B. Computer A has a drive that is mounted on computer A as a network drive. Now I want to upload a file to a website. In the browser of computer A I open a browser, and go the website. On the website I select 'upload file', now in the file browser I go to the network drive, and select a file on computer B to upload. What happens in this case. Is the file uploaded directly from computer B to the website, or is the file first transferred to computer A, and then to the website.

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  • DNS server setting resets on reboot

    - by Vaibhav Bajpai
    I recently changed my physical location, and had to change my DNS server setting in network preferences. However my Mac reverts back to original DNS server IP address on each reboot and I have to manually change it everytime. How can I make my changes persist on reboot? I am running Snow Leopard 10.6.7 UPDATE This is has started to occur since the time I restored my entire system from TM backup.

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  • Is there a suitable chain for iptables when eth is in Promisc mode?

    - by user1495181
    I have a fron-end machine. Machine have2 eth cards. I want to use netfilter queue to do some checks on the packets. I set eth like this: ifconfig eth0 0.0.0.0 promisc up ifconfig eth1 0.0.0.0 promisc up I want to have an iptable rule like this(only example): iptables -A INPUT -i eth0 -j LOG --log-prefix " eth0 packet " but the packet is no passed through the iptables ,because it dosnt target to this MAC. Promisc mode didnt help. I saw that there is a way to add iptables chain for PROMISC, but need compilation... Is there any simplier way to have iptables rule when packet is not target to this eth. Currently i bypass this by creating a bridge between 2 eth and put rule on the FORWARD, but i done want to create bridge.

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  • Can I use an apple airport express as a wired bridge?

    - by Chris
    I have a wireless network using an Apple Airport extreme. That device is set up in my office and hooked up to the cable modem. I have a TV in another room which can accept a wired internet connection (not wireless enabled). Can I use an Apple airport express's ethernet jack to create a wireless to wired bridge? If not what device would I use to do the same thing?

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  • problem on expand network using a router

    - by Jose
    I have a Netgear FS605 v3 router, and i'm trying to expand my network. The router is connected to the cable modem with cat5 cable. I have 2 laptop connected to the router but i'm only able to get internet connectivity in one. The first laptop i turn on, get the signal and the other one will show no connectivity. I have restarted all the devices many times but no luck. Can somebody explain me how to get this solved. Thanks.

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  • Weird WLAN connection

    - by tuelsch
    I assembled my first computer on my own. As I realised it had no WLAN (AsRock Z77 Extreme 4m) I bought a WLAN stick (ZyXel NWD 2105), plugged it in, started the setup from the CD and it worked, until I restarted the PC. That's when the problems started. The stick is able to connect to the router (P-660HN-F1Z) and the connection is stable, but not the internet access. In estimately 1 minute intervals there might be a short connection timeframe and dropbox or windows update are able to download some data, but as soon as I try to open a website the internet access is away. Note that the connection to the router does not shut down and remains stable at around 80-90%. The problem is definetly located on my pc, because with my laptop and phone the connection is stable and fast. Because I was so pissed off, I bought a EW-7612PIn V2 (PCI-E WLAN adapter), same problem. Now the weird thing is, if I don't use the PC for about 2 days, start it up, there is internet access (happened with both the stick and the PCI-E card). A bit slow, but it does not get away just like that, until I shut it down. Then, no matter how many times I restart, it won't come back. I googled a lot but now I'm at the end with my latin. Has anyone had a similar problem and resolved it? Technical details: Motherboard: AsRock Z77 Extreme 4M OS: Windows 7 professional 64bit Stick: Zyxel wireless N adapter NWD2105 PCI-E card: Edimax EW-7612PIn V2 Router: ZyXel P-660HN-F1Z Windows-IP-Konfiguration Hostname . . . . . . . . . . . . : xyz Primäres DNS-Suffix . . . . . . . : Knotentyp . . . . . . . . . . . . : Hybrid IP-Routing aktiviert . . . . . . : Nein WINS-Proxy aktiviert . . . . . . : Nein Drahtlos-LAN-Adapter Drahtlosnetzwerkverbindung 5: Medienstatus. . . . . . . . . . . : Medium getrennt Verbindungsspezifisches DNS-Suffix: Beschreibung. . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter # 3 Physikalische Adresse . . . . . . : 80-1F-02-61-C0-A6 DHCP aktiviert. . . . . . . . . . : Ja Autokonfiguration aktiviert . . . : Ja Drahtlos-LAN-Adapter Drahtlosnetzwerkverbindung 4: Verbindungsspezifisches DNS-Suffix: Beschreibung. . . . . . . . . . . : Edimax 802.11n Wireless Adapter Physikalische Adresse . . . . . . : 80-1F-02-61-C0-A6 DHCP aktiviert. . . . . . . . . . : Ja Autokonfiguration aktiviert . . . : Ja Verbindungslokale IPv6-Adresse . : fe80::38d2:f489:726d:1fb5%17(Bevorzugt) IPv4-Adresse . . . . . . . . . . : 192.168.1.41(Bevorzugt) Subnetzmaske . . . . . . . . . . : 255.255.255.0 Lease erhalten. . . . . . . . . . : Donnerstag, 15. November 2012 10:51:05 Lease läuft ab. . . . . . . . . . : Sonntag, 18. November 2012 10:51:18 Standardgateway . . . . . . . . . : 192.168.1.1 DHCP-Server . . . . . . . . . . . : 192.168.1.1 DHCPv6-IAID . . . . . . . . . . . : 578821890 DHCPv6-Client-DUID. . . . . . . . : 00-01-00-01-17-FF-D5-FE-BC-5F-F4-48-FC-4B DNS-Server . . . . . . . . . . . : 91.233.182.2 194.230.1.39 NetBIOS über TCP/IP . . . . . . . : Aktiviert Tunneladapter isatap.{263BEB98-344B-435C-888F-1B15B97C3AC1}: Medienstatus. . . . . . . . . . . : Medium getrennt Verbindungsspezifisches DNS-Suffix: Beschreibung. . . . . . . . . . . : Microsoft-ISATAP-Adapter Physikalische Adresse . . . . . . : 00-00-00-00-00-00-00-E0 DHCP aktiviert. . . . . . . . . . : Nein Autokonfiguration aktiviert . . . : Ja Tunneladapter Teredo Tunneling Pseudo-Interface: Verbindungsspezifisches DNS-Suffix: Beschreibung. . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Physikalische Adresse . . . . . . : 00-00-00-00-00-00-00-E0 DHCP aktiviert. . . . . . . . . . : Nein Autokonfiguration aktiviert . . . : Ja IPv6-Adresse. . . . . . . . . . . : 2001:0:9d38:6ab8:209c:2944:3f57:fed6(Bevo rzugt) Verbindungslokale IPv6-Adresse . : fe80::209c:2944:3f57:fed6%11(Bevorzugt) Standardgateway . . . . . . . . . : :: NetBIOS über TCP/IP . . . . . . . : Deaktiviert C:\Users\xyz>ping 192.168.1.1 Ping wird ausgeführt für 192.168.1.1 mit 32 Bytes Daten: Antwort von 192.168.1.1: Bytes=32 Zeit=2ms TTL=254 Antwort von 192.168.1.1: Bytes=32 Zeit=2ms TTL=254 Antwort von 192.168.1.1: Bytes=32 Zeit=2ms TTL=254 Antwort von 192.168.1.1: Bytes=32 Zeit=2ms TTL=254 Ping-Statistik für 192.168.1.1: Pakete: Gesendet = 4, Empfangen = 4, Verloren = 0 (0% Verlust), Ca. Zeitangaben in Millisek.: Minimum = 2ms, Maximum = 2ms, Mittelwert = 2ms

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  • Windows 7 'Unidentified Network'

    - by Throdne
    So my internet was working last night before I went to bed and woke up to a computer that is showing unidentified network. I have tried multiple ways of fixing it. > route delete 0.0.0.0 > uninstalling drivers - restart - reinstall from downloaded drivers > ipconfig /release - /renew > static IP > speed & duplex from auto negotiation to 1.0gbps full duplex > and also changed my network address to no value to 1234567890ab (not in that order) nothing seems to work. I have Comcast internet and when I connect the computer to the modem it works perfectly. but when I connect it to my router again, Unidentified network. I know my router isn't faulty, because my macbook pro, server, NAS, iPhones, and iPads are still working. I have also tried moving the port on the router, still same problem. my router is a: Cisco Small Business RVS4000 motherboard: GIGABYTE GA-990FXA-UD3

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  • How can I determine which switch the Infiniband subnet manager is running on?

    - by ajdecon
    I recently inherited an Infiniband network containing multiple switches, and I know that one of these switches is running the subnet manager. The rest supposedly have that feature turned off, or were never enabled. The trouble is, I have no idea which one it is... I'd like to replace the switch subnet manager with OpenSM running on a couple of my infrastructure servers. Is there any way, short of logging into each switch individually, to determine which switch is running the SM?

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  • Lan DNS not working after reinstall of Ubuntu 13.10

    - by DrorCohen
    I upgrade my Ubuntu desktop to 13.10. When I say upgrade I mean installed on a new partition from scratch (old partition is available if To the problem: I'm trying to ping a host (Drobo-FS server) by it's host name. I get "Unknown Host". However pinging from another computer on the same lan - works fine (a laptop with 12.04 lts). for that matter every ping from the 13.10 to the local lan by hostname fails, ping with ip works. I don't have a local DNS server but somehow all the other computers in the network find each other by host name - only this new one fails... help appreciated...

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  • 'hijacking' gui and mapping certain controls to certain functions. VNC. TouchOSC

    - by Nick
    I need a VNC LIKE application which rather than sharing the screen, can take control of a specific application and then share that functionality across a network to multiple clients. Obviously, VNC requires use of the mouse and therefore only one user can do something at one time, this is NOT what I am after. I am after something that can hijack the graphic user interface, map certain controls, and then display them in another piece of software (perhaps like TOUCHOSC) The software I would like to map and share is called YAMAHA STUDIO MANAGER and is used to control certain Yamaha audio hardware, and in my case a Yamaha LS9 and M7CL mixing console. Its free.

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  • Windows XP SP3 dissapearing mapped drives

    - by Alan Spark
    I am running Windows XP Pro SP3 and I've got a few shares on my NAS that are mapped to reconnect automatically. I can access the drives soon after starting windows but after a period of inactivity I get the error "The local device name is already in use". This cannot be remedied until I restart the computer - I've tried disconnecting and re-mapping without success. This was working fine until I recently reinstalled Windows and I'm not sure what is going on. Any help would be greatly appreciated. Thanks, Alan

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  • Zune HD won't wirelessly sync with my laptop

    - by Keith
    I've got a zune hd and I am having trouble getting it to sync with my laptop. I have gone through the procedures listed on their webpage (http://www.zune.net/en-us/support/usersguide/musicvideospictures/troubleshootwireless.htm) but still can't get it to work. Any ideas?

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  • VirtualBox with Ubuntu Server guest can't ping outside

    - by Danidan
    Here's my situation: an Ubuntu 12.04 Host running VirtualBox; two guest VMs running Ubuntu Server 12.04 home network, so my Host pc has a wireless connection to the router of my ISP. My problem is in one of the virtual machines: it has 3 NICs, one in NAT mode and the others in Host Only mode. My purpose is to use eth0 (NAT) for Internet access and eth1, eth2 (Host Only) for management of internal virtual network (eth1 uses a VBoxNet with this IP 192.168.69.254). Whenever I try to $ping 8.8.8.8 I get Destination Host Unreachable. While if I $ping 192.168.69.10, that is the IP of the other VM, it works. I can't also ping my Host nor my router My /etc/network/interfaces file is: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp auto eth1 iface eth1 inet static address 192.168.69.1 netmask 255.255.255.0 auto eth2 iface ifconfig $IFACE 0.0.0.0 up up ip link set $IFACE promisc on down ip link set $IFASE promisc off down ifconfig $IFACE down $route -n returns: Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 10.0.2.2 0.0.0.0 UG 100 0 0 eth0 10.0.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 192.168.69.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0 Forgetting for now what eth2 needs to do and its setup, why I can't go outside the Host box? What can I do to help you helping me? :-)

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  • Can't connect to the internet in Windows Vista

    - by Kola
    I have a Windows Vista computer which i have used for about 2 years without any issues. Recently, i started having problems connecting to the internet with this Vista computer. My other XP Computers are fine and can connect to the Internet. Regardless of wired or wireless connection, i am unable to get the Vista computer connected to the web. The Status remains "Limited" for IPv4 and IPv6. It also shows unidentified Public Network, and is able to connect to the router. However, there's a disconnection between the router and the internet. Any help will be greatly appreciated, i have been on this for 4 weeks now.

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  • Why is a network ID not needed to connect to an IP address?

    - by baddogai
    I know how IP basically works, and knows that an IP address composed of a network ID portion and a host ID portion, but when I type a IP address, say 8.8.8.8 into the web browser, I didn't supply any subnet mask information. So, how does the browser know where the dividing line is between the network ID and host ID? Since 8.8.8.8 may mean 8.8.8.8/8, 8.8.8.8/24 etc. In a nutshell, the IP address I supplied is ambiguous.

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  • Problem with connecting two different networks

    - by tanascius
    I have two networks: 192.168.13.0/24 (blue) and 192.168.15.0/24 (green). Computer A is connected to the 13-net, only. Computer B has two interfaces, one in each network. There is third computer that acts like a router and connects the 13-net to the 15-net (only in this direction). Now, I'd like to ping 192.168.15.100 from computer A to B. Unfortunately there is never a reply. But when I use a hub instead of a switch it works. In my opinion the ping packet travels through the switch to the router (which is the default route/gateway for A). The router sends the packet back to the switch to B. Probably B receives it on its 15-net interface but answers with it's 15th interface? Is this possible? The problem is, that B may have only a gateway 192.168.13.50 - but I am not really sure of it (B is a embedded system with limited configuration possibilities). Can anyone explain what happens here? Thank you!

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  • Can't access to access to my web server inside a network with Firewall on

    - by ianenri
    I set up a Web server with the following: There is the Internet Router, configured to Port Foward port 80 to my computer assigned to my PC's IP: 192.168.1.128 My PC is connected to that wireless router from wlan0 Then, my PC is also connected to my device (which is the webserver) with a crossover-cable usign eth0 having this anohter IP: 10.42.43.1 Finally, my device (the webserver) is connected with eth0 with this IP: 10.42.43.55 As you can see, I need to install a reverse-proxy to be able to resolve to my device's webserver. I installed pound (proxy server) in my PC and configured properly to make 192.168.1.128 resolve to 10.42.43.55 So, I just typing my ISP provided IP 200.x.x.x resolves to my device webserver. But there's a problem: I HAD TO STOP MY FIREWALL. I don't know how I need exactly configure the firewall in SUSE YAST2, or at least iptables. Stopping it is not an option, not for security reasons, just because there's port fowarding rule that is needed to give Internet access to my device too. I'm using openSUSE 12.1

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  • A switch and router between the printer and PC that want to print but cannot

    - by Robert Memo
    IP 192.168.1.5 has a wireless connection to a Linksys router (192.168.1.1) which then is connected to a switch. The switch is connected to a server (192.168.0.2). My printer has IP address of 192.168.0.8. Internet connection is fine on 192.168.1.5. Problem 1: IP 192.168.1.5 can not print using printer 192.168.0.8. Problem 2: IP 192.168.1.2 can not access a shared folder on the the server. The reason for connecting this way is that, the server does not release wireless signal. In order to get wireless signal the Router is connected to the switch. The server is a computer server that only has one outgoing LAN port. Plus, due to inconvinience physical locations, I do not have option to change the physical locations and the way it is connected already. I just want the labtops that only have wireless connection to communicate with the printer and the server. I have tried to change the router IP address to 192.168.0.x like the server and printer. It caused problem for the laptop. The router no longer release internet signals. The router does have IP address from the server 192.168.0.5.

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