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• Is a "Soft Modem" (i.e. internal) really going to cause incompatibilities?

  - by Farseeker

  Thanks to the fact that our banking industry in Australia... outdated (which is the politest word I could think of when describing the banking industry)... to do a certain kind of transaction our bank requires us to use a dialup modem and send serial data to them. When reading through their documentation (last update: 1995), they state that any "Soft Modems" (by which I assume they mean internal modems, as they refer to a AMR socket on a motherboard, which I haven't seen in donkeys years) should not be used because of "possible incompatibilities" Seeing as buying an external, serial-port modem is actually quite expensive these days and I have a whole box of PCI modems taken out of a bunch of Dells I really don't want to have to buy an external modem. Additionally I think their documentation is simply outdated. Has anyone had experience with internal modems causing issues, where an external modem didn't?

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• How to disable screens turn off Windows 8.1

  - by Warpzit

  So recently my computer started turning my screen monitors off after a while without activity, if I move the mouse or hit the keyboard they turn back on. I just want them to stay on. My System is windows 8.1 64 bit, I have 2 screens with mini display port and 1 television with hdmi which often is in regular television mode when this issue happens. Now before you jump to conclusions this is what I've tryed: Disabled screen saver Power saving settings to high with following set: Turn of the display: Never Put the computer to sleep: Never Turn off hard disk after: Settings: Never Sleep: Sleep after: Settings: Never Display: Turn off display after: Settings: Never Display: Enable adaptive brightness: Settings: Off Multimedia settings: When sharing media: Settings: Prevent idling to sleep. Any pointers that get me in the right direction will be greatly appreciated.

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• Arch Linux doesn't mount two USB drive?

  - by unixbhaskar

  One is USB modem which is connected and working and problematic one is a plain vfat USB stick which contain data ....that is the fellow not mounting :( I have tried to see it by fdisk ....it doesn't mount autometically... Is there any UDEV rule for that?? Because I have put a udev rule to remove the usb-storage thing( I had to.. otherwise the usb modem wont get connected... it waits for storage to relase the port) Any idea and solution would be greatly appreciated PS: I am running Arch distribution. Thanks

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• How to specify which GCC for MacPorts to use?

  - by penyuan

  I compiled GCC 4.4.3 and installed it in /usr/local/bin, but whenever I install a port via MacPorts 1.8.2 the verbose output says MacPorts is using /usr/bin/gcc-4.2: checking for gcc... /usr/bin/gcc-4.2 How do I make MacPorts find my own GCC 4.4.3? Here is my existing path: /opt/local/bin:/opt/local/sbin:/usr/local/bin:/usr/local/lib:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/X11/bin Thank you! P.S. I am running Mac OS X 10.6.2 Snow Leopard.

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• Filtering downloading a file

  - by Ozgun Sunal

  people. i know there are several types of firewalls operating at different layers of OSI. ACLs(layer 3 firewalls filter based on port numbers and IP addresses), SPI(which examines the patterns of data at layer 3 and realise that data content is malicious or not) and application layer firewalls which is capable of understanding the data at that level. Considering this, i'll give an example and learn what i need to do. Lets say, we have a computer has access to the Internet. i want to download a file or display a web page from a website but block access to the another website/s or downloading. To do this, i cant block access to the web browser on the 3rd party firewall bcos that will shut down all access. ACLs wont already do it. So, which kind of firewall will make it possible to filter specific traffic and how?

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• How can I monitor network traffic in an all Mac home network?

  - by raiglstorfer

  I have an all Mac network consisting of an Airport Extreme, 1 MacPro, 1 Mac Mini, 2 MackBook Pros, 2 iPads, and 2 iPhones. The Mac Pro is connected directly to the Airport Extreme via Cat5 and the rest is all running via Wireless. Lately I've been getting prompted by Google to enter Capchas frequently. The message states that I might have software running on my network I'm not aware of. My wireless router is password protected using WPA2 Personal and I frequently change my password so I don't think someone is using the network from outside (but I've no way to confirm this). I'm looking for a relatively cheap (preferably open source) solution that would enable me to monitor and profile the network usage by machine and port. Can someone recommend a solution?

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• How can I monitor network traffic in an all Mac home network?

  - by raiglstorfer

  I have an all Mac network consisting of an Airport Extreme, 1 MacPro, 1 Mac Mini, 2 MackBook Pros, 2 iPads, and 2 iPhones. The Mac Pro is connected directly to the Airport Extreme via Cat5 and the rest is all running via Wireless. Lately I've been getting prompted by Google to enter Capchas frequently. The message states that I might have software running on my network I'm not aware of. My wireless router is password protected using WPA2 Personal and I frequently change my password so I don't think someone is using the network from outside (but I've no way to confirm this). I'm looking for a relatively cheap (preferably open source) solution that would enable me to monitor and profile the network usage by machine and port. Can someone recommend a solution?

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• Clarification of the difference between PCI memory addressing and I/O addressing?

  - by KevinM

  Could someone please clarify the difference between memory and I/O addresses on the PCI/PCIe bus? I understand that I/O addresses are 32-bit, limited to the range 0 to 4GB, and do not map onto system memory (RAM), and that memory addresses are either 32-bit or 64-bit. I get the impression that memory addressing must map onto available RAM, is this true? That if a PCI device wishes to transfer data to a memory address, that address must exist in actual system RAM (and is allocated during PCI configuration) and not virtual memory. So if a PCI device only needs to transfer a small amount of data at a time, where there is no advantage to putting it into RAM or using DMA, then I/O addressing is fine (e.g. a parallel port implemented on a PCI card). And why do I keep reading that PCI/PCIe I/O addressing is being deprecated in favour of memory addressing? Thanks!

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• Starting Apache through XAMPP is not working

  - by nogamo

  I've checked the error logs for this particular problem and it seems no access can be made to port 80. (OS 10013)An attempt was made to access a socket in a way forbidden by its access permissions. : make_sock: could not bind to address [::]:80 Turning the Windows firewall off didn't work, so I'm a bit lost. All of this is running on my laptop so I don't have my own "server" per se but I was under the impression that this would work without the need for one independent of my own personal computer. How would I solve this?

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• What domain names are served by a host?

  - by pjmorse

  For a set of VPSes operated by my company, I'd like to get a list of domain names hosted by each. The list of names has grown in an ad-hoc way for a few years. Is there a simple way to query the Apache and/or Nginx configurations to see what domains the server answers to on port 80? It is safe to assume (a) that I have sudo on these systems, and (b) they aren't using wildcards, although a solution which acknowledged that a wildcard was in use would be useful too if it also provided a list of explicit domains.

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• How can I access blocked sites while in China?

  - by Samuurai

  I have some colleagues who need to go to China for work, however while they're there, they can't access a lot of sites. One of which is GMail (Google Apps), which they need for work. We have a UK based Ubuntu server, which I have root access for. What can I do for them? I thought about a Squid proxy, but it might rely on their hotel having port 8080 open, so, not ideal. Are there any workarounds or other solutions?

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• Stopped windows firewall service during ICS, how is this possible?

  - by insipid

  Although windows firewall is required to be on when you "start" Internet Connection Sharing, you can stop the WF service with MMC. When done a client can still use the host machines internet. The firewall had port 80/http blocked, and now it is open for incoming traffic. However other ports used by applications on the host and client which communicate with each other still seem to be blocked. Can anybody explain what might be happening here? Doesn't ICS need windows firewall for NAT? Note: I am not actually seeing anything in the firewall logs after stopping the service, but even packets sent localhost on the host machine never arriving on these other random ports.

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• Activating ssl on tomcat

  - by toom

  I want to encrypt the http traffic on a tomcat instance via ssl. Therefore I followed the most simplistic approach described on various webpages. But anyway it simply does not work. Here is what I did: "keytool -genkey -alias tomcat -keyalg RSA" and I enterd "changeit" as the password (since this is the defaut chosen by tomcat) Altering $CATALINA_HOME/conf/servers.xml by uncommenting the following line Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="false" sslProtocol="TLS"/ Restarting tomcat Entering https://localhost:8443 does not work. However, I can still access the page via normal http like http://localhost:8080 The logfile does not contain any suspicious information. What is going wrong here?

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• MacPorts on mountain lion - cannot install apache2 due to gettext package

  - by jancha

  I have been having problem with installing gettext package from macports. When I am launching /opt/local/bin/port -v install apache2 it checks dependencies, and continues with gettext package installation. But the configure process freezes here: checking for egrep... /usr/bin/grep -E and nothing happens.. can wait hours, nothing changes. I tried to configure, make, make install manually for that package and it went all fine. But, when same configure is launched by ports, it hangs there. Question: 1) How can that be fixed? 2) Maybe I can somehow manually tell ports, that I installed that gettext package manually already? Sorry, if wrong "site" for this question. Felt most proper one.

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• Applications getting killed automatically

  - by nebi

  I am running httperf client on my m/c and after few seconds it is getting killed. dmesg shows: The command is: httperf --hog --client=0/1 --server=39.0.0.2 --port=80 --uri=/50kb --rate=20000 --send-buffer=4096 --recv-buffer=16384 --num-conns=6000000 --num-calls=1 Although I had done this test no. of times but never faced this error any time. From last two days I am observing this. My Ubuntu version is ubuntu 10.04. and httperf version is httperf-0.9.0 [ 2997.180620] Out of memory: kill process 7977 (apache2) score 70532 or a child [ 2997.180632] Killed process 7977 (apache2) [ 2997.184837] Out of memory: kill process 7971 (rsyslogd) score 8702 or a child [ 2997.184844] Killed process 7971 (rsyslogd) [ 2997.188823] Out of memory: kill process 7978 (apache2) score 1354 or a child [ 2997.188829] Killed process 7978 (apache2) [ 2997.192817] Out of memory: kill process 7973 (atd) score 561 or a child [ 2997.192822] Killed process 7973 (atd) [ 2997.196805] Out of memory: kill process 8102 (httperf) score 471 or a child [ 2997.196811] Killed process 8102 (httperf) Output of free command: total used free shared buffers cached Mem: 3862768 163000 3699768 0 2384 13068 -/+ buffers/cache: 147548 3715220 Swap: 3905528 0 3905528

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• Device that connects to a switch via RJ45, that emulates a PC

  - by Mike Christiansen

  One of my co-workers once saw a device that plugged into a RJ45 jack, that emulated a PC. It could be configured with an IP address, and respond to pings. I was wondering if anyone knew about these, or even what they are called? This will be used to simulate a PC in a classroom environment. Thanks in advance. Edit: This is a CCNA classroom, we are looking to simulate a PC connected to an ethernet port on a router. These will be on different subnets, etc. This might be doable with a VM through VLANs and virtual switches, but then we are getting away from configuring the physical ports on the router the way we want to.

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• Cisco WLAN Controller not pushing out DHCP addresses, what else could it be?

  - by Name

  On our Cisco WLAN Controller web interfaces, in Controller Interfaces, I have made a new interface with these settings: VLAN Identifier 202 IP Address 172.16.202.1 Netmask 255.255.255.0 Gateway 172.16.202.254 Primary DHCP Server 172.16.100.3 Secondary DHCP Server 172.16.100.2 Port: LAG I've also made a new WLAN and assigned it to the above interface. I have saved changes. But our wireless devices, although they seem to authenticate with the WLAN fine, they always get stuck on "obtaining DHCP address", so it seems the WLAN Controller isn't pushing out DHCP addresses to our devices. We do have a DHCP scope for the above in Windows Server 2008 R2 and everything there seems fine. If I connect a device with a static address (e.g. 172.16.202.10), it will connect. Stuck on what to do :(

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• Where can I connect this USB 3.0 cord?

  - by tomsawyer95

  My motherboard has 2 USB 3.o slots in the back, where the usual slots go, but the tower also supports 1 or 2 USB 3.0 ports in the front, above the DVD drive. So, there is a cord coming out of those ports that has an end exactly like the one in the attached picture. I am not able to find a matching port on the mobo, so I presume it doesn't have one, and I would need an adapter or else just leave it inoperable. I have an ASUS P8Z68-V LX and an Antec 900 tower.

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• Can't connect to server from certain machines

  - by Joel Coel

  On a small college campus we have a VLAN setup for the computer labs. These machines get assigned IP addresses in the 192.168.7.xxx range. In the server room, all of the server are on the default VLAN and assigned an IP address in the 10.1.1.xxx range. For the most part this works, but the lab machines are unable to connect to one of the servers. They can't even ping it. They can talk to other servers on the same switch as this server just fine. At first I thought it might be a vlan issue, but I changed the server port vlan to match other known-working ports with no effect. Any ideas?

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• Internal SATA hard disk shows up as removable device on Windows 7

  - by neutron80k

  I am running Windows 7 on an Acer Aspire M7720 with three internal SATA drives; drive #2 and #3 are on a removable HDD rack. Drive #3 (on the second removable HDD rack) shows up as removable device in the system tray. If I take drive #3 and put it in the first rack, it shows up as an internal drive. If I put any other drive in the second removable rack, that drive is also shown as removable device. I would like to fix that so that the drive in the second removable rack also is listed as internal drive. Since this seems to be independent of the actual drive in the rack, I checked the BIOS, but that third SATA port uses the same configuration as the second rack. So far, I could not find a solution for this problem (it's really more an annoyance than a problem), any ideas are welcome.

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• VLC stream with trickplay

  - by marjasin

  The idea is to start a video stream from one computer and watch it on another with the ability to start/stop the stream. I think I could do this with VLC but i haven't been able to figure out how. I've tried the following: (From the official forum) Stream with RTSP and RTP: on the server, run: % vlc -vvv input_stream --sout '#rtp{dst=192.168.0.12,port=1234,sdp=rtsp://server.example.org:8080/test.sdp}' on the client(s), run: % vlc rtsp://server.example.org:8080/test.sdp But this doesn't give me the ability to start/stop the stream from the client. According to the VLC release note something called "Trick play" was added in version 1.0. This seems to be what I'm looking for but i can't find any documentation that descibes how to use it.

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• Two routers in a LAN

  - by taxi

  router A no wifi +--- pc01 +--- pc02 | +--- router B wifi +--- pc03 +--- printer In my LAN I have a modem-router (say A) (no wifi connection) acting as DHCP server, and connected to the Internet. Now, I want to add another router (say B) (with wifi connection) to the LAN, in order to connect wifi pc's and net printers. Here I would disable DCHP server functionality. Is it correct to connect router B to router A via an ethernet port? In router A I define an IP address (eg 192.168.1.100) to be assigned to router B (MAC address). I expect to see router B listed as an attached device, in router A's status, but on the contrary it is not listed.

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• IIS7 houndreds of connections in CLOSE_WAIT

  - by rjlopes

  I have a .Net application on my IIS7 server it was working fine until I had to move it to another server. I moved the exact same code to the new server and I noticed that after some hours the website stopped responding to remote requests but if I did remote desktop to the server it responded to the request done to localhost. If I stop the website and the application pool it started working fine again. I was able to track the problem to hundreds of requests left in CLOSE_WAIT state to the http port that are never closed (I waited a few hours and they remain the same). Any ideias?

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• Creating an Exchange mail user

  - by Saiyine

  With Windows 2003 and Exchange 2003, I'm trying to set up a mail user. I've tried to create them with the New User procedure avaliable when right clicking the "My server"/Users and "My server"/MyBusiness/Users/SBSUsers folders but then I can't read its mail. I telnet my server to check the accounts at the pop3 port and when I pass it the user and the pass, I just get "-ERR Unspecified error." Any ideas of what I'm doing wrong? I can access without problems the users created by my predecessor, and I've compared my user to match his.

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• wamp server does not start: Windows 7, 64Bit

  - by Ram

  I am trying to install wamp server (following is the exact setup name) on windows 7, 64Bit OS. But it never starts, icon stays in orange color meaning some services did not start. wampserver2.2e-php5.3.13-httpd2.2.22-mysql5.5.24-x64 I have been searching from last 3hours but did not find any solution. Port 80 is not in use. In windows services, when I try to start wampapache service manually, it throws following error: Windows could not start the wampapache service on Local Computer. Error 1053: The service did not respond ot the start or control request in a timely fashion. apache_error.log is empty. Things use to work fine in windows XP. May be this is a repeated thread, but I did go through similar posts. But nothing worked! Please help!!

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