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• Ethernet port sleeping on PS3 running linux

  - by Doug

  My lab has a PS3 running Ubuntu Linux 9.04 Server Edition. After a period of a few hours with no use, the Ethernet connection (eth0) seems to go to sleep, causing the connection to be lost. Pinging or trying to SSH into the machine results in no response. The fix I've been using is to access the machine locally and restart it (trying to bring eth0 down then up doesn't seem to correct it). I've tried setting up an hourly cron job that runs on the PS3 and pings another machine just to create network activity, but this doesn't seem to solve the problem either. Update: The solution was to run the above cron job much more frequently: every 10 minutes works.

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• connecting to internal webserver on specific port

  - by bergin

  Hello, We have the BT broadband forwarding on to an internal machine with an IIS web server running. Thats fine, it goes to the sharepoint app, so the outside world can see this app. Thing is we need another app running (a MVC ASP.Net app) and I have set it to :8080. Internally I can get to it fine, but not when I type the IP number. eg. 80.100.232.129:8080 is this something I need to set on the broadband router or something with SBS or somewhere else? thanks in advance

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• Desktop speakers with headphone port and separate volume controls

  - by Kevin L.

  I currently use the excellent Logitech X-230 desktop speaker/subwoofer set, which I love for the volume dial on the front which gives me a nice, quick, tactile control of my sound without requiring a remote or keyboard buttons or some awkward software slider. Additionally, there's a very convenient headphone jack right next to the volume dial but the volume dial only controls the speakers, leaving the headphones at full volume. The goal is to be able to adjust the sound in my headphones without having to fumble around and find an inline headphone volume control (and my current favorite pair doesn't even have one). Is anyone aware of a desktop speaker set that has convenient volume controls for both levels?

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• CentOS 6 - iptables preventing web access via port 80

  - by bsod99

  I'm setting up a new web server with CentOS 6.2 and am not able to connect via the web. Everything looks set up correctly in httpd.conf and Apache is running, so I'm assuming it's an iptables issue. Is there anything in the following which could be causing the issue? # iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED ACCEPT icmp -- anywhere anywhere ACCEPT all -- anywhere anywhere ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:ssh REJECT all -- anywhere anywhere reject-with icmp-host-prohibited ACCEPT tcp -- anywhere anywhere tcp dpt:http Chain FORWARD (policy ACCEPT) target prot opt source destination REJECT all -- anywhere anywhere reject-with icmp-host-prohibited Chain OUTPUT (policy ACCEPT)

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• Set 802.1Q tagged port on VLAN1 on Dell PowerConnect switch

  - by Javier

  I'm having big troubles when adding this Dell switch to my network. Here we use several VLANs to segment traffic. All switches (3com and DLink mostly) have configured the same VLANs, most ports are 'untagged' and belong to a single VLAN, except for the ports used to join together the switches (in a star topology), these ports belong to all VLANs and use 802.1Q tags. So far, it works really well. But on this new switch (a Dell PowerConnect 5448), the settings are very different (and confusing). I have configured the same VLANs, an the uplink ports are set in 'general' mode (supposed to be fully 802.1Q compliant), I can set the VLAN membership as 'T' on these ports for all VLANs except VLAN 1. It always stay as 'U' on VLAN 1. Any ideas?

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• How to elegantly selectively exclude FreeBSD network traffic from OpenVPN interface by port

  - by Polygonica

  inexperienced sysadmin here. I'm planning on running a net daemon inside a FreeBSD jail through OpenVPN, but want to be able to SSH directly into the jail and use the daemon's web interface daemon without going through the VPN. As I understand it, an OpenVPN tunnel is normally set up as a default virtual internet interface, and so incoming traffic will go out on the OpenVPN interface by default (which is problematic, as this incurs latency). I thought "well, obviously, since all of this traffic is leaving on a handful of ports, I'll just redirect those to the non-VPN gateway." I've tried to look for solutions, but almost all of them involve iptables instead of ipfw (which is default for FreeBSD) and solve slightly different problems. And alternate solutions like using multiple default routes to ensure that incoming traffic on any interface is always sent out on the same interface seem far-reaching and require deep knowledge of all tools involved. Is there an elegant way of ensuring that traffic leaving on specific ports exits on a specified non-default interface using ipfw?

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• A can ping B, B can ping C but A cant ping C. How do i connect A to C (ethernet)?

  - by user16654

  I have a computer at home with ip 192.168.221.xxx I have another computer at work that I can ping and it has 2 ip addresses: 192.168.1.xxx and 192.168.0.xxx. Those last 2 addresses have the same gateway ie 192.168.1.1 . The computer at work is connected to a hub. That hub also has an embedded device connected to it with address 192.168.0.xxx Now from my home computer I cannot ping this embedded device. How would I connect to it without changing the subnetwork it connects to? I can ping the embedded device from my work computer and I can ping the work computer from my home computer. So I am trying to connect to the embedded device from my home computer through my work computer. Port forwarding? how would I establish that on Ubuntu?

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• Latitude D600 USB port problem

  - by Moab

  Both USB ports stopped communicating on my D600, they have power, my optical mouse still lights up, no device works on the ports, everything is fine in Device manager in Dual boot XP and W7. Checked the bios, not much in there for USB. No usb device shows up when I use the F12 boot device menu either, so it must be some hardware issue. I have another hard drive with Ubuntu on it, popped it in and USB does not communicate with it either. Appears to have 5v but no communication, any Ideas besides another motherboard or USB card for the pcmcia slot (these don't work to well from my research)? I mostly use them for mass storage devices and pcmcia slots don't supply enough power for these devices. Thanks to all who answer with last ditch efforts. I hate to give up on it, its been good to me and still runs rather well for its vintage. EDIT: I did inspect the ports with a flashlight and did a partial disassembly of the laptop in an attempt to check the solder joints, but would require complete motherboard removal to see them, that is where I stopped. .

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• Port to use CentOS init.d functions

  - by jcalfee314

  What are good equivalent centos commands using functions in /etc/init.d/functions such as daemon to perform the following tasks? STARTCMD='start-stop-daemon --start --exec /usr/sbin/swapspace --quiet --pidfile /var/run/swapspace.pid -- -d -p' STOPCMD='start-stop-daemon --stop --oknodo --quiet --pidfile /var/run/swapspace.pid' It looks like daemon will work for the start command and killproc is used for the stop command. . /etc/init.d/functions pushd /usr/sbin daemon --pidfile /var/run/swapspace.pid /usr/sbin/swapspace . /etc/init.d/functions killproc -p $(cat /var/run/swapspace.pid) Would the --oknodo be needed in the CentOS env (the swap file is really only boot-time)? "oknodo - Return exit status 0 instead of 1 if no actions are (would be) taken." I don't see quiet in daemon or killproc, I can't imagine that it would matter though. The original start-stop-daemon for swapspace seems to have both -p and --pidfile (the same command). That must be an error. Did I miss anything? Any idea why daemon not create the pid file?

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• multiple servers porting to each other

  - by JackLeo

  hello, here is the details: theres is who "servers": VPS with ubuntu 10.10x32 and home pc, win7 on win7 apatche2.2 is running with webpage on VPS game server is running DNS forwards www subdomain to PC, and everything else to VPS (all via ip) I can not configure DNS directly, my providers do Wanted result: DNS forwards everything to VPS, VPS redirects *:80 to PC when viewing page stored in PC domain is shown normaly Questions: How to achieve that using as minimal resources as possible? Is it possible just tel my DNS provider to fix it that :80 port is in different ip? P.S. its for my friend, i do have some apatche and VDS configuration exp. More of a programmer i am. so trow everything you can ;)

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• VMware - Broadcom 1000Gbps NIC does not link at 100Mbps to a Cisco switch port

  - by Spirit

  Today we've stumbled on a very awkward situation with our VMWare Server. The server is with ESX 3.5 that has a 1Gbps NIC. We bought a brand new managed Cisco Linksys switch with 10/100Mbps interface ports but when we plugged the cable in one of the ports the link simply does not wanted to activate :S... Does anyone with more VMware experience have ever had similar problem? From what I know is that 1Gbps NICs are backwards compatible with 100Mbps switches. This is what we've tryed so far but with no success: Tryed: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1004089 Tryed to modify the /etc/modules.conf folowing the guide from this article http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=813 After the changes I have restarted the networking services using # service network restart, # service mgmt-vmware restart and # service vmware-vpxa restart It seems that no matter how many times, or whatever approach/method (GUI or Shell) we try to change the speed and duplex of the network adapter and to force it to 100mbps it only accepts 1Gbps .. I am starting to go nuts :@

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• Can't get nmap to work under Windows 7 64 bit

  - by jitbit

  I'm trying to install and run the nmap tool to test my server, but it keeps saying Note: Host seems down. If it is really up, but blocking our ping probes, try -P0 and showing all the server ports are closed. Which is not true - the server is up and has lots of open ports. Any ideas? UPDATE: Just to clarify - the server can be pinged and port-scanned fine by other programs. It's juts nmap that does not work. Even "google.com" seems to be down for nmap.

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• Ubuntu 9.10 freezes when HDMI port is connected

  - by Felipe Hummel

  I have a Sony Vaio FW350 with a HDMI output. I'm trying to use it under Ubuntu 9.10 with a LG LCD monitor 21,5'. The laptop has a Intel 4500 video card. I've tried two approaches: Boot the laptop with the HDMI cable connected and monitor turned on. Result: LCD Monitor keeps turned on but the whole screen is black and Ubuntu do not seem to be initializing. Boot Ubuntu until the end. I then connect the HDMI cable into the Laptop. The mouse and the whole system freezes. In both cases the only way to turn off the laptop is holding the power button. I've looked around the internet for similar problems, but only found workarounds for the same problem with VGA input, not HDMI. I also tried to use metacity before connecting the cable, but still got the same result. Any hints?

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• How to disable port 443

  - by aslingga

  I have installed Apache 2.x.x. But right now I have uninstalled it from my pc. I try to install XAMPP, but the apache could not installed correctly. Error: Could not bind to address 0.0.0.0:443

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• Forward public port to localhost

  - by Dan

  I have a process running on my Ubuntu 12.04 server that insists on binding to a public IP address. I only want it accessible from localhost, and NOT the outside world. I've been trying to work out a way to forward 1.2.3.4:8888 to 127.0.0.1:8888. I saw something about iptables not wanting to forward connections to loopback, and I haven't been able to make it work with xinetd either. It's also important that the connection not only be available on localhost, but be inaccessible on the interface it's trying to run on. Is this even possible?

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• Windows 2003 Server Suddenly Drops Connections to everything but PING and port 80 (webserver)

  - by Urda

  Hi, I'm running a Windows 2003 Dedicated server, and the box has been rock solid for more than 2 years now. Just recently, I have had an issue where after a certain ammount of time the server will just stop accepting connections on all ports except 80, and still responds to pings. If you surf to a static HTML page on the box, you can display it. If you pull up a PHP file that has an outside database connection, it fails. RDP refuses to connect, and LogMeIn reports that "The connection was reset" The only fix at this time is to have the provider physically reboot my box to correct the issue. The event log doesn't seem to be leaving helpful messages, and I am at a lost to what is causing this error since I have not installed any new software in months on it. Any tips or help would be appreciated to tracking down this issue. I don't mind updating the question as responses come in, I just do not know where to start troubleshooting because it seems random at this time.

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• PNY ExpressCard SATA II 2-port card - drivers?

  - by stewartwb

  I bought a couple of PNY eSATA cards for notebook computers, model P-NSA2-EC-RF. I mistakenly thought that they would be a bit more plug-and-play, like cards that supply USB or Firewire ports. They did not ship with the Driver CD, and the drivers I found on the PNY web site didn't work. I've emailed their support group, but we all know how likely it is that they will respond before the end of the decade. Does anyone have a driver disc handy for this model card, or know where I might download a driver ISO? (Dell XPS M1330 laptop running Windows 7 x64 and sometimes Windows 7 x86)

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• Tunneling through SSH for 1521 port access?

  - by A T

  I am developing locally on my computer, using my own Apache server with PHP configured. My database however is remotely located on an Oracle 11g Database Server. We were also given a separate remote server for hosting our .html and .php files, however only FTP access has been provided there. Development is far too slow waiting for the FTP connection to push. So I decided to develop locally, but still use the remote DB server. Unfortunately that gives me an error. Not sure how—or where—to integrate tunnelling. Do I add something to the oci_connect HOST in my PHP file, or do I encapsulate my whole environment over SSH?

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• GeForce GT 430 with 1 VGA port and 1 HDMI port can support dual monitor?

  - by Tendou Kishi

  This question is similar to 3 Monitors, 1 graphics card but with different video card. It has the same ports as GT 120 in that question. Would it support dual monitor? I don't need 3 monitors. Just 2 is good. Checked GeForce GT 430 Specs but have no idea whether it will support or not. While on it, can somebody explain how to know whether a graphics card support multiple display from such information?

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• DELL U2410 Monitor(Display Port) & Graphic card

  - by Anj

  I was looking for a 24" monitor and bought the Dell 24" inch ultra sharp monitor which has DisplayPort( new keyword for me) seems it is equivalent to HDMI. Now I would like to enhance the display capabilities for my laptop and desktop(both have VGA output as of now). Couple of questions in mind: Is there a single HD graphic card which i could use for both desktop and laptop? I understand it has to be external but if its costly then I would stick on internal graphic card for my desktop. Please recommend external if its cost effective else I would go for internal one(Budget is around $70 or Rs 4000. Is there a HD card which I could use for both HD video and 5.1 channel audio output? I generally use the computer for office work/ listening music and watching movies, not gaming.

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• 100 TIME_WAIT Connections to 1433 (sqlserver) port from one remote IP

  - by dynback.com

  What to do? Block that IP in firewall? What is this?

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• Is it possible to host a website with Apache HTTP through a ZyXEL EQ-660R modem and a Netgear WGT624v3 wireless router?

  - by Vortico

  Essentially, I have a spare desktop computer I'd like to turn into a web server, but my modem and wireless router are very difficult to work with. I installed Apache HTTP and successfully hosted a test page which can be accessed anywhere on the LAN. However, I'm having trouble setting up the server to be accessed from my external IP address. I was supplied with a ZyXEL EQ-660R DSL modem by my ISP (CenturyLink) and bought a Netgear WGT624v3 wireless router in which to connect my laptop and spare desktop. ZyXEL's website is no help, and I don't think much of the problem is with the Netgear router. I've played with many settings and have tried to forward port 80 from the modem, but I've had no luck. Could someone direct me toward a solution or recommendations for more promising hardware? Or should I admit defeat and explore other hobbies? :)

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• How do I connect my Samsung 6 Series TV to network through a proxy?

  - by JGC

  I have a Samsung 6 series LCD TV which can connect to internet by LAN. When I connect my TV to my Windows 7 laptop which get its internet from AS share it, it can connect to the Internet. My TV can connect to YouTube, but in my country this site is filtered. I want to use an antifilter(proxy) program to bypass the filtering. The problem is the TV does not recognize the proxy port or program. How can I configure the TV or the network to use the proxy?

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• cant access my local web server with the external IP

  - by TommyG

  I havent been able to find a solution to my particular problem. I have a MAC which I set up as a web server and configured my router to forward to the local IP. When trying to access my site from outside, it does say "It works!", however, when I call a simple Hello World PHP script that I have, I am getting an error that the page could not be opened. I did enable PHP on my machine so thats not the problem. I really have no idea how can I access - I followed so many tutorials and did everything correctly. My router is a Linksys WRT160N if it matters at all. In the port forwarding section, I selected to forward

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• Configure USB GSM Modem

  - by adisembiring

  I want to configure EVDO Usb Modem in Ubuntu 10.10 I insert my usb modem to laptop and check the usb is detected or not using $sudo lsusb and the result is: Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 002: ID 201e:2009 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 003: ID 14cd:6600 Super Top USB 2.0 IDE DEVICE Bus 002 Device 002: ID 201e:2009 is my us device. and than I execute command $dmesg | grep -e tty [ 0.000000] console [tty0] enabled [ 818.054660] usb 2-1.3: GSM modem (1-port) converter now attached to ttyUSB0 [ 818.055125] usb 2-1.3: GSM modem (1-port) converter now attached to ttyUSB1 [ 818.055647] usb 2-1.3: GSM modem (1-port) converter now attached to ttyUSB2 [ 818.330641] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0 [ 818.330743] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1 [ 818.330840] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2 [ 1054.917473] usb 2-1.2: GSM modem (1-port) converter now attached to ttyUSB0 [ 1054.917995] usb 2-1.2: GSM modem (1-port) converter now attached to ttyUSB1 [ 1054.918481] usb 2-1.2: GSM modem (1-port) converter now attached to ttyUSB2 [ 1055.214087] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0 [ 1055.214221] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1 [ 1055.214356] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2 Why converter disconnected from ttyUSB2 ? and than I try to execute command $sudo wvdialconf sorry, no modem was detected! Is it in use by another program ? did you configure it properly with setserials ? I change the same type usb modem from my friend, but I still get error above.

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