Search Results

Search found 40420 results on 1617 pages for 'power line networking'.

Page 278/1617 | < Previous Page | 274 275 276 277 278 279 280 281 282 283 284 285  | Next Page >

• Multiple network cards, controlling where my traffic goes

  - by thefinn93

  This is an Ubuntu 12.04 server install. I have multiple network cards, eth0 and eth1 lets call them. eth0 is connected to the internet, and all of my traffic goes through it, until eth1 gets plugged in. Then the machine tries to send everything through eth1, which for various and sundry reasons does not go out to the Interent. The only traffic it doesn't send through eth1 is traffic on eth0's subnet. It also will not accept inbound connections on eth0 from outside of eth0's subnet. I'd like all outbound traffic to go out eth0, but I'd like incoming connections from to either card from any subnet to work.

  Read the article

• RTL8188CE doesn't connect to any wifi access points

  - by Drakmail

  I'm using network manager to connect. Also, tryed iwconfig. Results are same. I even try to connect to open access point — results are same. More information: Drakmail@thinkpad-x220:~$ lspci | grep Network | grep -v Ethernet 03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01) Drakmail@thinkpad-x220:~$ uname -a Linux thinkpad-x220 3.1.0 #1 SMP PREEMPT Wed Oct 26 02:19:49 UTC 2011 x86_64 Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz GenuineIntel GNU/Linux Drakmail@thinkpad-x220:~$ dmesg | tail -n 10 [ 846.901574] rtl8192c_common: Loading firmware file rtlwifi/rtl8192cfw.bin [ 906.812461] rtl8192c_common: Loading firmware file rtlwifi/rtl8192cfw.bin [ 966.728810] rtl8192c_common: Loading firmware file rtlwifi/rtl8192cfw.bin [ 1026.639676] rtl8192c_common: Loading firmware file rtlwifi/rtl8192cfw.bin [ 1030.925574] rtl8192c_common: Loading firmware file rtlwifi/rtl8192cfw.bin At this moment I try to connect to open wifi ap: [ 1031.252403] wlan0: direct probe to 00:24:8c:55:fa:ed (try 1/3) [ 1031.451943] wlan0: direct probe to 00:24:8c:55:fa:ed (try 2/3) [ 1031.651658] wlan0: direct probe to 00:24:8c:55:fa:ed (try 3/3) [ 1031.851354] wlan0: direct probe to 00:24:8c:55:fa:ed timed out [ 1086.544960] rtl8192c_common: Loading firmware file rtlwifi/rtl8192cfw.bin My distribution: Drakmail@thinkpad-x220:~$ cat /etc/*version AgiliaLinux release 8.0.0 (Sammy) (Something between Slackware and Archlinux). Also, I saw that wifi module to often trying to load a firmware file. Any ideas what it would be?

  Read the article

• What is the fall off of subsecond throughput on Ethernet Network Interfaces

  - by Kyle Brandt

  On a network interface, speeds are given in term of data over time, in particular, they are bits per second. However, in the uber-fast world of computing -- a second is kind of a really long time. So for example, given a linear falloff. A 1 GBit per second interface would do 500MBit per half second, 250Mbit per quarter second etc. I imagine at certain units of time, this is no longer linear. Perhaps this is set by ethernet frequencies, system clock speeds, interrupt timers etc. I am sure this varies depending on the system -- but does anyone have more information or whitepapers on this? One of the main reasons I am curious is to understand output drops on interfaces. Even if the speed per second is much lower than the interface can handle -- perhaps there are spikes that cause drops for only small numbers of milliseconds. Perhaps various coalescing would hide this effect -- or perhaps increase it on the receiving interface? Do queues make a difference here? Example: So given if this is linear down to the MS we would have 1Mbit/MS, and if Wireshark isn't distorting what I see, should I see drops when I have a spike beyond 1Mbit?

  Read the article

• Can I make Windows behave like an ethernet hub?

  - by dromedary

  I have two machines A and C mutually connected to NICs on a third machine, B, as follows: A-B-C B is a Windows 7 machine configured with a bridge containing the A-B and B-C NICs, so that A and C can communicate. So far, so good. I need frames from A destined for B to also arrive at C. Essentially, I would like Windows to behave like a hub rather than a switch. Is there any way to do this? If you have any ideas at all, no matter how hacky or roundabout, I would love to hear from you! I have been tearing my hair out over this and by now I am willing to try anything. My only limitations are that I can't touch A or change to a different operating system on B.

  Read the article

• dhcp client service won't start

  - by xyious

  I have a Laptop with 2 network interfaces and neither will get an IP address through dhcp. I found out that the dhcp client service didn't start. Upon manually starting it gives the error 2: File not found. I have checked that the files were there (both svchost and dhcpcore .dll), the local service account has read access to the system32 folder, the path in the registry is also correct and I can access the file. I have tried to netsh winsock reset and ip reset all. I have even added the local service account to the administrators group. sfc /scannow also came up clean. I have no idea what else I can try. Any suggestions are welcome. (side note it's a windows 7 32 bit, atheros wlan, deinstalled avira before any of the other troubleshooting)

  Read the article

• What is your approach to draw a representation of your network ?

  - by Kartoch

  Hello, I'm looking to the community to see how people are drawing their networks, i.e. using symbols to represent complex topology. You can have hardware approach, where every hardware unit are represented. You can also have "entity" approach, where each "service" is shown. Both are interesting but it is difficult to have both on the same schema (but this is needed, especially using virtualization environment). Furthermore, it is difficult to have complex informations on such representation. For instance security parameters (encrypted link, need for authentication) or specific details (protocol type, ports, encapsulation). So my question is: where your are drawing a representation of your network, what is your approach ? Are you using methodology and/or specific softwares ? What is your recommendations for information to put (or not) ? How to deal with the complexity when the network becomes large and/or you want to put a lot of information on it ? Examples and links to good references will be appreciated.

  Read the article

• Connecting to network device behind NAT from local LAN using the external port and IP

  - by lumbric

  I noticed at several different LANs connected to the Internet through a NAT the following phenomena. There is a server in the LAN and there is a port forwarding to reach this server also from outside the LAN through the NAT. E.g. consider a LAN with the address 192.168.0.* and a SSH server at 192.168.0.2 with port 22 and a forwarding from port 2222 at the NAT 192.168.0.1 to 192.168.0.2:22. If the NAT's external IP is 44.33.22.11, one can connect to the SSH server through 44.33.22.11:2222. Surprisingly this works only from outside the LAN. If one tries to connect to 44.33.22.11:2222 from behind the NAT, there is no answer. Of course one could simply use 192.168.0.2:22, but often it is simpler to use the external IP. The typical use case for me is the configuration on a laptop computer. Usually the user uses any arbitrary Internet connection to connect to his home or office server, but sometimes he will use also the LAN to connect to it and it would be annoying to have to different configurations or bookmarks. Why does it fail to connect from inside the LAN? Is there any good work around?

  Read the article

• How do I fully share a Hard Drive on my Local Network?

  - by GingerLee

  I have 4 computers connected to a router (DD-WRT) My main PC is Windows 7 (Home Premium). This machine has 2 Hard Disks: HD1 is used for my OS and the other (HD2) is used to store files. My 3 other machines are 1. Ubuntu Destop that I use to learn about linux, 2. A Mac OSX laptop, and 3. A netbook running windows 7. How do I easily share HD2 with my other machines? I would like all my machines to have full access & permissions to HD2 however I would like to RESTRICT access to only PCs that are connected to my router (either via LAN and WiFi) --- btw, I know this is not very secure due to WiFi vulnerability , however, I currently MAC address restrict WiFi connections my router. Extra Info: I have already tried to use the Windows Folder Sharing feature: i.e. I right click over the icon of HD2, and click on the Sharing Tab, but in sub-window labeled "Network File and Folder Sharing", the "Share" button is grayed out. I can click on "Advanced Shared" but that just takes me to a screen in which I have to set certain permissions. What is not clear to me is: How do I set a criteria that shares HD2 with all computer connected to my router?

  Read the article

• Samba+Windows: Allow multiple connections by different users?

  - by rgoytacaz

  Hello there, I have a machine running Ubuntu with Samba that I use to share stuff with my family's Windows machines in our local network. Currently they access a share for movies/music/etc with one user. I want to connect them to another share as a different user (for example, user "goytacaz"). When I try connecting to this new share, Windows gives me "Error 1219" and complains about multiple connections by the same user. How do I get my machine to accept multiple connections by the same user?

  Read the article

• Windows Server 2003 Is there a limit on number of TCP connections per process?

  - by aceinthehole

  We are running into issues with BizTalk host instance intermittently going down. One of the things that we are worried about is the number of FTP connections a single host instance is making which could easily reach into the hundreds perhaps sometimes thousands, depending on traffic. My question is Windows Server 2003 Is there a limit on number of TCP connections per process? If so would putting each application in it's own host instance potentially solve the problem.

  Read the article

• Outbound ports to allow through firewall

  - by dunxd

  This question was asked before, but in a rather general way. I'm asking more specifically based on my current requirements. We have a number of remote offices made up of a bunch of PCs and an ASA 5505 which is used as firewall and VPN termination point. In the offices we share the internet connection with one or more other organisations over whom we have very little control, asides from the config on the ASAs. For a bunch of reasons I'd like to lock down these ASA 5505s to only allow outbound traffic to ports used by applications we know we need. I'm putting a standard config to roll out to all the ASAs, and if we need to open up ports for the other orgs we can do it on request. But I want to leave open the most commonly required ports so we can get up and running without waiting on other folks technical staff to get back. I plan to allow the following TCP ports to support commonly required resources: POP3 (110 and 995) HTTP (80 and 443) IMAP4 (143 and 993) SMTP (25 and and 465) The question really is, what other ports do I need to leave open to allow for "normal" working. I've seen UDP port 53 for DNS as one. Are there any others that would be worth opening up? Just to note - I'll also be setting up monitoring systems to keep an eye on the ports we do allow. Any of the above could be misused of course. We'll also back all this up with signed agreements. But I'm aiming for a technical solutions where I don't have to start out with the full requirements of everyone we share connections with. See also: outbound ports that are always open

  Read the article

• Video streaming and internet browsing on different bands/frequency

  - by user47207

  I have a Netgear WDNR37000 which allows clients on a 2ghz or 5ghz to access the internet and see every client and device on the network. I have a computer with two nics, one that is in the 2ghz range and the other on the 5ghz range. My specific problem is that I would like to serve my video streams (hulu, ps3mediaserver, playon) to my ps3 on the 5ghz band while internet browsing is routed to the 2ghz band. This is so that the video streams aren't affected by general internet use. While the easiest solution would be to disable internet access on the 5ghz apn, I would like to know of a solution that would not require that.

  Read the article

• ssh can't connect after server ip changed

  - by Kery

  I have a server with ubuntu installed. After I change the network configuration and restart server, ssh client can't connect server any more. But in the server I can use ssh client to connect itself and the netstat command shows that sshd is listening port 22. And in my computer (win7) ping command is OK to server's new IP. The configuration in /etc/network/interfaces is: auto eth0 iface eth0 inet static address 10.80.x.x netmask 255.255.255.0 gateway 10.80.x.1 I'm very confused about this. Hope somebody can give me some idea. Thank you in advance!!!

  Read the article

• Windows 7/8 can't connect to an N Router

  - by xenoterracide

  I have a router running OpenWRT backfire, with N and A/B/G being broadcast. A linux laptop, and a Mac laptop can see the N network and connect to it (or at least they could last weekend). But there is now a Windows 7 Desktop with a B/G/N wireless card, and a Windows 8 Laptop with a B/G/N wireless card that can't see the N network only the B/G broadcast. The B/G and N have different SSID's and Encryption ( WEP and WPA2 PSK respectively ). The N SSID isn't even visible. Does anyone have any suggestions as to how to troubleshoot further? Or what might be the cause? update wireless info Desktop Dell Wireless 1502 802.11b/g/n Atheros Communications Inc 9.2.0.412

  Read the article

• Selectively routing traffic via ethernet or wifi, with proper DNS (Mac OS X 10.6)

  - by Dan

  When I'm at work, I access various intranet pages as well as the wider Internet through ethernet. However, the company LAN blocks some ports (e.g. Google Calendar). I can get to those through WiFi. So, I gave the Airport priority, and then using route add, I set up selective routing: all intranet traffic goes through the ethernet and everything else via WiFi: sudo route add 10.0.0.0/8 <intranet gateway>. However, there are a number of intranet sites that have their own DNS; i.e., hr.company.com only resolves on the intranet. The only way that I can get the DNS to work properly is to add the internal DNS server to the Airport DNS listing, however I fear that when I go elsewhere and forget, this will break things. What's the right way to get the DNS to resolve using this setup?

  Read the article

• How to use proxy on Virtual Box (Windows XP)

  - by John

  I'm not exactly the most tech savy so please bear with me. I am trying to connect through a proxy with my Virtualbox accounts. Initially I wanted to just set the browsers in each virtualbox under a proxy but my boss said that it can probably be done right off the bat under the virtualbox accounts itself. Could anyone guide me on how to do this? All the instructions online state that their should be a proxy setting in preferences however all I see is a Network Adapter tab. Thanks!

  Read the article

• Iptables port mapping from two PCs to one

  - by Anton

  We have 3 PCs, two of it are connected to internet (both of it have 2 NIC) PC1: eth0 - 1.0.0.1 (external IP) eth1 - 172.16.0.1 (internal IP) PC2: eth0 - 1.0.0.2 (external IP) eth1 - 172.16.0.2 (internal IP) PC3: eth0 - 172.16.0.3 (internal IP) Now we want to map port 80 from PC1 and PC2 to PC3. But there is the problem: iptables port forwarding works well from PC1 or PC2, but only in case if PC3 have PC1 or PC2 as gateway. So, question is: can we have port mapping from both PC1 and PC2 regardless of gateway settings on PC3? Thank you in advance.

  Read the article

• VM connected to network but not to internet in VMware Player 6 on Windows 8.1 host

  - by user1257262

  So I am running Bitnami's MEAN stack in VMware Player 6.0.2 on Windows 8.1 and the VM connects just fine to the network: https://www.dropbox.com/s/xfdzohjuuepz52w/ifconfig.PNG However, I am having a great deal of trouble getting the VM to communicate with the internet. No matter what sort of action I take (even something as simple as apt-get update), the machine just sits there and eventually fails to connect. Here is my VM's Network Adapter configuration: https://www.dropbox.com/s/xfdzohjuuepz52w/ifconfig.PNG On my host Windows 8.1 computer, I actually have the VMware Bridge Protocol enabled but for VMware Network Adapters (VMnet1 and VMnet 8), but they are listed as having No Internet access in my Network and Sharing Center. I am not entirely sure if these adapters are relevant to connecting the VM to the internet, to be honest. This is the first time I have ever had an issue connecting a virtual machine to the internet. This problem is also happening with other VM's I am trying to run. Can someone tell me what I am doing wrong and how I can fix it?

  Read the article

• How to setup THIS IPv6 network

  - by Revolter

  I have a network mapped like this : just to experiment IPv6 connectivity, i want to configure my LAN network using IPv6, can some one explain me how to convert the connection between the Desktop and the Laptop to IPv6 without loosing the internet connection ? I don't want to access IPv6 internet, I need to keep my v4. So the end result will be something like an full-IPv6 Laptop accesing IPv4 internet over a some-how-configured Desktop that acting as a NAT.

  Read the article

• how to switch played music when someone enters

  - by ymajoros

  My wife has a small shop, and she plays free licensed music. She can't legally play her own music when people outside of the family circle are present in the shop. How can I automatically switch music when someone enters? I was thinking of some bluetooth door detector and some custom software, but can't seem to find either. I'm a software architect/dev and can write it if necessary, but I'd prefer to use some existing solution. Any ideas on good hardware and software for this?

  Read the article

• How to stop my wireless adapter from received dhcp from router (windows)

  - by baobeiii

  Hi, I have a windows 7 computer which is connected via vpn to an OpenVpn server which happens to be in another country. I have all internet traffic being routed from my computer through the vpn to the server. However dns queries are not going through the vpn, but are instead going directly to my isp's dns via a route outside of the vpn tunnel. This is happening because my wireless adapter is configured to obtain DNS server address automatically. The router that stands between my computer and the internet happens to have a DCHP server running on it that is assinging my computer with the DNS addresses of the isp. The issue is, i haven't been able to stop my wireless adapter on my computer from receiving the dns settings from the router. I've tried selecting 'use the following dns server addresses' and then just leaving them blank, but ipconfig /all shows me that this hasn't worked and i'm still getting dns form the router. So is there any way to completely stop my windows wireless adapter from receiving these settings from the router? I have the OpenVpn server pushing to my computer's tun adapter the dns that it should be using. I'd rather solve this in a way that doesn't involve disabling the dhcp server on the router or fiddling with the router. The reason is i'm on a laptop and i want my vpn to not leak dns even when i'm out, for example in wireless hotspots. I know if i could just force the wireless adapter to ignore the router's dhcp server then my dns queries would go through the tunnel to the dns address pushed by the OpenVpn server. Sorry, i know thats long winded, if you have any idea's please do tell me. Thanks and merry xmas.

  Read the article

• Open a remote folder in windows mobile

  - by Luis

  I have a device with windows mobile 6.1 and I want to open a shared folder on my laptop with the file browser... Both are connected to the same wireless network, both have access to internet but I can't have access between them... I have used open path in the file explorer and nothing... I shut down the firewall on mi laptop but still I can't access.. I don't know anything about permissions if that is the problema because I'm a novice... if anyone can helpme I'll appreciate it a lot...Thanks...

  Read the article

• How to setup an Openvpn server with two gateways to internet

  - by fourat

  I have an openvpn server behind two wan interfaces: eth1 and eth2 where eth1 is the default gw and eth2 is where openvpn binds to. The problems my ovpn server is replying back to ovpn client via the default gw (through eth1) and the tcp negociation is lost before establishing any tunnel. Here's what's happening: wan client -----> eth2 ----> openvpn -----> eth1 ----> lost and not delivered back to client Is there a way to tell ovpn to stick on eth2 and consider it for all traffic ?

  Read the article

• Cablemodem (SBG6580) firewall denying some outbound traffic? Why? Not configured [migrated]

  - by lairdb

  I finally got around to turning the syslog on for my cablemodem (Motorola Surfboard SBG6580) and I'm seeing about the expected amount of inbound attackage being blocked... 2014-05-30 21:59:02 Local0.Alert 192.168.111.1 May 31 04:58:56 2014 SYSLOG[0]: [Host 192.168.111.1] UDP 12.230.209.198,4500 --> 66.27.xx.xx,61459 DENY:Firewall interface [IP Fragmented Packet] attack 2014-05-30 21:59:02 Local0.Alert 192.168.111.1 May 31 04:58:56 2014 SYSLOG[0]: [Host 192.168.111.1] TCP 17.172.232.109,5223 --> 66.27.xx.xx,53814 DENY:Firewall interface access request 2014-05-30 21:59:02 Local0.Alert 192.168.111.1 May 31 04:58:57 2014 SYSLOG[0]: [Host 192.168.111.1] UDP 12.230.209.198,443 --> 66.27.xx.xx,53385 DENY: Firewall interface [IP Fragmented Packet] attack 2014-05-30 21:59:02 Local0.Alert 192.168.111.1 May 31 04:58:57 2014 SYSLOG[0]: [Host 192.168.111.1] UDP 12.230.209.198,4500 --> 66.27.xx.xx,61459 DENY:Firewall interface [IP Fragmented Packet] attack 2014-05-30 21:59:10 Local0.Alert 192.168.111.1 May 31 04:59:04 2014 SYSLOG[0]: [Host 192.168.111.1] UDP 12.230.209.198,443 --> 66.27.xx.xx,59960 DENY: Firewall interface [IP Fragmented Packet] attack 2014-05-30 21:59:10 Local0.Alert 192.168.111.1 May 31 04:59:04 2014 SYSLOG[0]: [Host 192.168.111.1] UDP 12.230.209.198,4500 --> 66.27.xx.xx,61459 DENY:Firewall interface [IP Fragmented Packet] attack ...and that's great. (Sad, but great.) But I'm also seeing a HUGE amount of what appears to be denied outbound connectivity: 2014-05-30 16:30:10 Local0.Alert 192.168.111.1 May 30 23:30:04 2014 SYSLOG[0]: [Host 192.168.111.1] TCP 192.168.111.100,58969 --> 38.81.66.127,443 DENY: Inbound or outbound access request 2014-05-30 16:30:10 Local0.Alert 192.168.111.1 May 30 23:30:04 2014 SYSLOG[0]: [Host 192.168.111.1] TCP 192.168.111.100,58969 --> 38.81.66.127,443 DENY: Inbound or outbound access request 2014-05-30 16:30:10 Local0.Alert 192.168.111.1 May 30 23:30:04 2014 SYSLOG[0]: [Host 192.168.111.1] TCP 192.168.111.100,58965 --> 162.222.41.13,443 DENY: Inbound or outbound access request 2014-05-30 16:30:10 Local0.Alert 192.168.111.1 May 30 23:30:04 2014 SYSLOG[0]: [Host 192.168.111.1] TCP 192.168.111.100,58965 --> 162.222.41.13,443 DENY: Inbound or outbound access request 2014-05-30 16:30:10 Local0.Alert 192.168.111.1 May 30 23:30:04 2014 SYSLOG[0]: [Host 192.168.111.1] TCP 192.168.111.100,58964 --> 38.81.66.179,443 DENY: Inbound or outbound access request 2014-05-30 16:30:10 Local0.Alert 192.168.111.1 May 30 23:30:04 2014 SYSLOG[0]: [Host 192.168.111.1] TCP 192.168.111.100,58964 --> 38.81.66.179,443 DENY: Inbound or outbound access request ...and Spot checking suggests that it's all legitimate traffic (Opening connections to CrashPlan, etc.), I have no restrictions configured in the modem; I don't see why it should be blocking anything. Am I misreading the log entry, and it's not actually being denied? (Seems unlikely.) Is the ISP (TWC) pushing deny tables that are not exposed in the UI? (Tinfoil hat too tight.) I'm confused. (The good news, such as it is, is that AFAIK I'm not experiencing any actual issues... but maybe I am; tough to tell.) Thanks.

  Read the article

• How to change the setting for a network device reported by ethtool, specifically Speed, on VM?

  - by Ramadheer Singh

  This is related to these two questions, although they don't answer my question. The machines are RHEL6. 1.ethtool not showing all the properties 2.changing network speed to 1000Mb/s Output on VM: [root@foo ~]# ethtool eth0 Settings for eth0: Current message level: 0x00000007 (7) Link detected: yes Output on Real Hardware: (interested in Speed) # ethtool eth0 Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised auto-negotiation: Yes ***Speed: 1000Mb/s*** Duplex: Full Port: Twisted Pair PHYAD: 1 Transceiver: internal Auto-negotiation: on Supports Wake-on: d Wake-on: d Link detected: yes if there's anyway I can set this in VM, please suggest.

  Read the article

< Previous Page | 274 275 276 277 278 279 280 281 282 283 284 285  | Next Page >