Ubuntu Networking :: External IP Does Not Work
Jul 23, 2010
I am running an Ubuntu 10.4 box with all ports forwarded on an internet router. The point is I can ping my PC with its external IP but no other services are accessible through it. I have also checked my iptables rules. It's completely flushed and the default rule is set to ACCEPT. The worst thing is that when I boot my box with windows XP, it is completely accessible by its external IP and I could successfully initiate a remote desktop connection to it over the net.
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Jun 27, 2011
Anyone using a WD 2TB external USB HD? (e.g model number WDBAAU0020HBK-UESN)I am thinking of getting one for use with 64 bit Lucid for archive/backup storage only.from searches I have run the main cause of problems seems to be not applicable to the way I intend to use it i.e running a OS from it or having it mounted on boot up.I Just need it to act like a very big USB stick. Plug it in - transfer data to it (or from it should the need arise), unmount and remove.If I can use it on any of my 3 Lucid systems that will be good but just one will do.Will the NTFS system that this unit is preformatted with be OK? any other possible problems?
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May 7, 2010
can just buy any External Hard Drive and it will work on ubuntu 10.04? If not could you tell me the brands that do Work.
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Jun 20, 2010
Script doesn't work anymore? I created a script that mounts an external hard drive.
#!/bin/sh
mount -t smbfs //192.168.1.104/MediaShare /mnt/MediaShare
mount -t smbfs //192.168.1.104/Backup /mnt/Backup
It is in my startup and has been working fine. I recently upgraded to 10.04 Ubuntu and I don't know if this has anything to do with it. A while after the upgrade something changed. Normally when booting up a permission screen for the scrip would pop up, I would enter the password, and it worked. But suddenly it started going past the login for the script and the mouse could not click on anything. I discovered that I could press alt-o and the mouse worked again. And I would activate the script in terminal and it would work. Why this would suddenly change and what I can do to get the script working again.
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Dec 27, 2010
I have Windows 7 and Ubuntu 10.10 on my Toshiba laptop. In windows everything is fine but in ubuntu if i plug in external speakers they do not work. Even when the external speakers are plugged in the laptop's internal speakers keep working. I searched for other forums but could not find a solution although many people seem to have this problem.
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Sep 1, 2011
I want to buy a new external USB hard disk drive, and my eye was drawn by the 1TB CORE External Desktop USB 2.0 Very appealing was the comment "Plug n Play - no software to install". But then I noticed the sentence: "Includes DES lock - Protect all your important files." This set the alarm bells ringing. If the drive comes with a DES protection lock, is this likely to work with Ubuntu? Or is it going to be a Windows-only thing, locking me out cos I don't use Windows?
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Jan 14, 2010
Update 6th March 2010: Update to Kernel 2.6.31-20 SOLVED the problem. Recording works again (still wouldn't in kernels 2.6.31-17 to 2.6.31-19). If a kernel update doesn't solve your problem, please read post 14 on page 2 by Mocha which seems to have solved the problem for other users without updating the kernel
Update 8th February 2010 to Kernel 2.6.31-19 did not solve the problem, please also read post number 7 for more details.
Quick Conclusion for other users who might experience the same problem:
After an update to kernel version 2.6.31-17 in Ubuntu 9.10 Karmic Koala, my external microphone did not work anymore. Playback was possible, just recording would not work anymore, although there was quite some background noise in the headphones. This made it impossible for me to use Skype and/or Sound Recorder.
All the possible solutions offered below did not help in my case (although you might give them a try).
I switched back to kernel version 2.6.31-16 where the problem does not occur.
Output: cat /proc/asound/card0/codec#* | grep Codec
Realtek ALC662 rev1
I know there are lots of threads about this topic, but I have spent hours on this problem already and none of the solutions offered so far worked for me so I decided to start this thread.
I have been using Ubuntu 9.10 and so far, my external microphone worked flawlessly in Skype as well as in Sound Recorder. A few days ago, I received a call on Skype and all the guy on the other side could hear was loud noise. I can only play sound, but not record anymore (i.e. the microphone doesn't work anymore). I tried two different microphones just to be sure whether one was defective and also checked it in Windows (where they both work).
I am not sure what might have caused this problem, I just remember a kernel upgrade about that time (not sure whether this is the reason though). I use 2.6.31-17-generic now.
Here is what I have tried so far:
1) Right-click on the Sound Icon in the top right corner and checked the following: in the hardware tab, it is set to analog stereo duplex, input is set to internal audio analog stereo (no other choice here) and the mic is NOT muted (playing with the volume doesn't help either) and output is set to internal audio analog stereo (again, no other choice) and connector is set to analog output (here I can switch to analog headphones or analog speaker, but makes no difference).
I remember that I could choose between Microphone 1 and Microphone 2 in the input tab; this is somehow magically gone.
2) Installed padevchooser, tried several settings to no avail
3) When I use "alsamixer" (version 1.0.20) in a terminal, Playback>Master is set to 100<>100, Capture is set to 150<>150, lowering and/or playing with these figures doesn't help either.
When I use "alsamixer -Dhw:0" in a terminal, I get the same results as in step four.
4) In Gnome Alsa Mixer, only "Beep" is muted, everything else is set to max. I have Master, Headphon, PCM, Front, Front Mi (x2), Lin, Mic, Mic Boost, Capture (x2, set to record), Beep, Speaker
I have tried to mute/unmute different setting to no avail. Now I wonder why I have two Front Mi and two Capture entries. This is different than it used to be, might this be causing the problem?
5) Fiddling with Pulse Audio Volume Control didn't help either.
6) Had a look at "paman" (pulse audio manager), not sure whether I should change anything here.
7) Installed "linux-backports-modules-alsa-karmic-generic" and rebooted as recommended in several threads, did not help either.
Added the parameters "model=auto" and "probe_mask=1" to '/etc/modprobe.d/alsa-base.conf', did not work, so I deleted the entries again (hint from [url], see post 5)
Now I am at my wits end. I need my microphone to work, especially for Skype, otherwise I have to switch to Windows every time I receive or want to make a call which is definitely not a long-term solution?
Does anybody have an idea what might be causing this problem? As I said, it used to work flawlessly just a few days ago and now I don't even know what I should do next to make it work again...
Output of "amixer"
When I run "alsactl init" I get the following result which might be at least a part of the problem, but I wouldn't know how to solve this problem:
Unknown hardware: "HDA-Intel" "Realtek ALC662 rev1" "HDA:10ec0662,103c303a,00100101" "0x103c" "0x303a"
Hardware is initialized using a guess method
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Aug 14, 2010
External USB TV device to work on 10.04 I have an External USB TV tuner[URL] Device,That is Compatible with Windows.Is there any way to make it work with UBUNTU 10.04.
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Feb 8, 2010
I am trying to hook up an external MIDI keyboard to Ubuntu (Studio) with no success. I can play MIDI files but not get the s/w to reguster any events from the MIDI keyboard. I have a soundblaster LIve! with front panel and am usng the MIDI in on this, with a ROland PC-300 kybd. Headphones work fine on the panel so I know this has been connected OK. The software (Rosegarden) 'sees' the keyboard as in input device but nothing happens when I play.
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Jul 14, 2010
What im trying to do is install ubuntu on to an external hard drive, partition it and make it work. ive got a problem, as i have 200GB of games and other things already on that drive, before you say "copy it to another drive and then back" i cant, i dont have any other drives apart from my internal which has only got 20 gig left
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Aug 12, 2010
would putting ubuntu on an external hard drive and booting it from refit work? and would i was starting up my imac 11,2 my ipod was bootable for some reason?
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Aug 17, 2010
When my LaCie BigDisk E+ USB/eSATA FW:1.1548 is plugged into the USB port, I get the following what is below (it fails). This occurs in Ubuntu also. I think it has something to do with the new kernels. I believe ehci_hcd used to be a module. Since it has been compiled into the kernel, the external USB hard disk does not work. I am compiling my own kernel now to see if that is the problem.
dmesg | tail
scsi11 : usb-storage 1-1:1.0
usb 1-1: USB disconnect, address 14
usb 1-1: new high speed USB device using ehci_hcd and address 15
[code]....
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Dec 21, 2009
I am using Open Suse 11.2 on my HP DV6 notebook. I am connecting my television to the notebook with a HDMI cable and the television is unable to find any signal. Am I missing anything here? Shouldn't it be simply connecting the HDMI cable finding the source channel on the television and then I get sound and picture..
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Oct 6, 2009
I have a FAT32 external USB hard drive with a bunch of stuff I want to copy onto a RHEL server. Is it as simple as it is on a Mac or PC where I just plug it in and it will show up, then I can copy all the files off of it?If it is, how do I safely remove the drive after I'm done with it?
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Jan 25, 2010
I've installed Linux to a portable hard drive with the assumption that I would be able to transfer that hard drive to my other computers and be able to boot into Linux from them. I know for a fact that these computers are capable of running the same linux installed on the portable HDD via LiveCD or LiveUSB flash drive.
However, when I try to start my portable hard drive on any computer other than the one I installed it on, it boots to a black screen and stays that way indefinitely.
So, I would like to know how to make my portable hard drive more versatile, and to automatically adapt to different computers during boot.
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Aug 31, 2010
I have a hard time mounting two external drives on my Suse 11.3. When I use the device notifier gadget both drives get mounted in /media/<drive name>, the vfat drive is read-only though. However, I would like to mount both drives under /<drive name> in separate directories and rw. I looked at the devices in /dev/ and entered the device name to fstab, set the mount point, file system (vfat, and ntfs-3g) and set 'rw,noauto,exec,user,sync 0 0'.
This way I could mount my vfat drive read-only under /<drive name>, but not the ntfs one. After a reboot i noticed that the external drives get different IDs in /dev. E.g. what I had in my fstab under /dev/sdc1 got /dev/sdf1, and /dev/sdc was unknown. I am doing something wrong here, what worked in 11.0 does not seem to work here.
[code]...
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Apr 14, 2010
Trying to get external microphone to work via CMI 8738 soundcard. Using SuSE 11.1, KDE 3.5, (No pulse). Mic works on other computer. rpm -qa '*alsa*'
alsa-oss-1.0.17-1.37
alsa-1.0.18-8.12.1
alsa-utils-1.0.18-6.4
alsa-plugins-1.0.18-6.12
[Code]...
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Apr 30, 2011
Recently i bought an external HDD, and unfortunately my internal HDD is not working.
Instead of buying new internal HDD, can i make external HDD work as internal HDD.
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May 22, 2011
I could not get get the LG External CD R/W Drive that I recently purchased to work with my ASUS Eee Netbook (Linux based) and ended up giving the drive to a friend to use with his Windows XP based laptop.How do I make an External CD R/W Drive work with this Linux-based machine?I am an engineer (civil-structural), but not that savvy with respect to computers; particularly issues of compatibility of hardware / software.
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Apr 23, 2009
I have this annoying problem since day one.I am testing out Red Hat RHEL5, everything is fine except DNS look up.If I ping www.google.com, it doesn't work, ping ip address it all works;if I bring up browser, put www.google.com it doesn't work, can't find the name, however, simply put ip address there it works.My DNS seeting seems ok, and the DNS works from Windows box.
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Jan 12, 2011
I am trying to set up an unused machine as a web server for my students.
I originaly tried with Redhat 9 and had the same problems. I am using an HP Pentium 4 system with 2 network cards.
1) The built in Realtek RTL8139 configured as eth0.
2) An add in Broadcom BCM5782 Gigabit card that was added I presume when the built in card failed (we have a number of machines like this around the school), configured as eth1.
I did not realize the second card was installed when I had Red hat 9 on the system, but I discovered it after installing centos 5.5. I have tried to configure the system to use DHCP with and without getting the DNS from the provider, and both ways the system complains that there is no connection, check the cable, so it will not activate the device.
When I configure the device to use a fixed IP, I can configure the device, but I can't ping anything on the network other than myself. I suppose it is possible that both network cards have failed, but I get green link lights with both cards, when I connect them to my router, so I am at a loss as to why neither board seems to work. I don't have a spare network card to slide in because the computer takes a special mini card. Is there an easy way to test the board to see if the board is a problem?
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Aug 7, 2011
I am having problems getting my external monitor to work. When I plug in the monitor, both the laptop screen and the external monitor go black. When I unplug the monitor, the laptop screen works again.
When I startup with the external monitor plugged in, neither screen works or teh computer hangs or something.
I have had the external monitor going on a couple of occasions. I did manage to configure my monitors through System Settings > Display. I turned off the laptop monitor as I just want to use the external. But after rebooting, things didn't work.
I have a Thinkpad E420, Fedora 15
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Oct 14, 2010
I work at a local computer shop as a computer technician and we get many computer in daily that require external virus scans (having to take out the hard drives, sticking it in another machine) just to scan (if we're lucky we can sometimes just do it in safe mode).Now what I want to know is...
1. Is it possible to install Ubuntu to an external HDD and use it virtually anywhere I plug it in? Will it pick up the network card, graphics card, etc so I can just plug and go? (Of course there are drivers for some computers).
2. Is it possible to run a Windows oriented virus scanner on Ubuntu? I know I can use WINE to run Windows applications, but will it prove to be compliant with virus scanners as well?
3. The main reason why I want it to be able to pick up on hardware and just work is because I plan on using it for schooling / travelling as well, have all my documents etc saved on it for easy access.
I've used Ubuntu in the past on an old laptop that didn't have much memory, small HDD, and a crap processor but that was 5-6 years ago (I still have the disk they sent me for free ).
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Feb 20, 2010
At the moment, my Music folder is shared across the network so my son can access it on his laptop.If I buy a regular external USB hard-drive, will I be able to have that permanantly mounted and be able to share the Music folder that I would create on it?Or would I be better off spending a little extra on a networked hard-drive plugged straight into my Netgear router? If so, any recommendations on a make & model that is happy with Ubuntu as well as Windows?
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Apr 26, 2010
We use Openvpn for remote access to the office network. It would be nice to keep this running and automatically connect to the office at all times.Once started, it does this anyway. The problem lies when the user comes into the office. Openvpn connects as usual to the vpn gateway, but this causes weird routing loops.Is there a way to say to Openvpn "Always connect to the gateway unless you are on network 10.10.10.0/24" ?
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Sep 1, 2011
Strangest thing...yesterday my 11.04 box lost the ability to access anything external. I can ssh to the box from outside my network, and all other boxes on my network are fine, but this one box can't hit anything external. If I attempt to ping a site it's doing the same resolution, but no packets are delivered.
Up until yesterday it was running fine, and I didn't make any changes to my home network or install any updates. Totally stumped.
Edit: this is a wired connection with a static internal IP.
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Sep 1, 2011
My PC is connected to a HW router which in turn is connected to a modem
Code:
internet-----modem----router----PC1
Is there a console command (e.g. in telnet) to get my external (public) IP?
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Jul 11, 2010
I installed Ubuntu on external USB hard drive and while booting I did got option to log into windows XP, Ubuntu. Both operating systems ran fine. i.e. GRUB had overwritten MBR and I was able to dual boot. Main issue: I have installed Ubuntu in external hard-drive so that I can use Linux whenever I want other people who are using same computer can operate on WindowsXP. Sometimes my external hard drive gives problem if there is loose connection and so that oper people using computer do not face any problem I want to disconnect external USB HD whenever I am not using Linux. GRUB menu was pointing to external hardrive so disconnecting it meant my system wont boot!!I rewrote MBR using WindowsXP CD recovery mode. Now I am unable to boot from external USB hard disk( I thought I would be able to if I choose USB hard drive in BIOS option but it did not work it logged into WindowsXP by default).Is there any way I can change WindowsXP boot.ini file so that it also shows Ubuntu in external hard disk? Or is there any way.(I do not want GRUB way as then I would have to keep my external drive connected to log into windows - which I do not want).
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Jun 9, 2010
Can I use my wired desktop connection to my wireless router to allow me to connect to an external wireless signal?
DESKTOP <--(wired)--> Wrouter <--(wireless)--> wireless.
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Jun 25, 2010
this is all I need simple VPN with authentication to external Radius server. Here is what I have done to try and get this goal accomplished. 1st try using PPTPD and Radius plugin No matter what I have tried (long explanation here [URL].. I can't get PPTPD to talk to my Radius server, even though I can authenticate using the same server and radius server using pam radius. PPTPD just won't, and so far the POTOP mail list has been quiet since my post to them and no replies/ideas in my other post, see forum link above.
2nd try using OpenVPN and their pam auth plugin. I give up on this one! I have the server working great BUT! As soon as I enable the plugin /usr/lib/openvpn/openvpn-auth-pam.so in the config I get this when trying to start the VPN server. kernel: [3725586.167177] openvpn[28364]: segfault at 0 ip 00007fd6e5e38fb4 sp 00007fff434f18f0 error 4 in openvpn-auth-pam.so[7fd6e5e38000+3000] Google turns up nothing on Segfaults on the openvpn-auth-pam.so Ug at my wits end, anybody have any other suggestions? I'm at a total loss ATM.
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