Ubuntu :: Identifying UPNP Connections To Sever?
Jul 13, 2011
I have a setup with a mythtv backend that streams media via the built in upnp to two xbox 360s. This works perfect at the moment. However I need a command/script that can identify if either of the two xbox's are connected via upnp. I need this so that I can have the system auto shutdown if no one is connected using the existing mythtv sleep wake features. (Basically if a script returns 1 then dont shutdown if returns 0 then shutdown.)
Code:
if upnp is connected then
dont shutdown
else
shutdown
fi
Thanks
Chris
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Feb 7, 2011
have a problem with my network-manager in ubuntu 10.10.when I dial one of my vpn connections, my other vpn connections be disabled and I can't use them!I tried to restart network-manager and gnome-panel, but it does't seem to solve this problem.
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Nov 6, 2010
So I have a bunch of CDs I have burnt over the past year or two, and only problem is, I would burn them, use it and forget about it. I never bothered labelling it. Now, I want to label them appropriately. Is there any way I can find out the following just looking at the CD contents-
1. Distribution - lucid / karmic / etc
2. Architecture - amd64 or i386
3. Type - server, desktop, alternate etc
I know if I boot into the machine from the CD drive, I can find out, but I prefer not having to do that
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Dec 29, 2010
Tried to test the 10.10 Netbook's Unity but after keying the password I got a "Unity missing driver" without any identification of the driver. Is it available in the repositories? How can I identify it to install it? Why isn't it included?
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Aug 3, 2010
I've installed Ubuntu Server, and Webmin following this guide, and all is well so far... I've mounted some drives with some pre-existing data on them, and can view the data on those drives. But I have one drive that I can't seem to mount, and I'm pretty sure there's data on it. But I can't seem to find how to identify what format the data is in, ie.. ntfs, ext2, ext 3, etc. Its likely pretty simple, but how can you identify the drive format before you attempt to mount it?
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Sep 7, 2010
got the problem with multiple ssh-tunnels. The case is:I have 1 server running Slackware 13.0 with external ip and few windows-machines. inetd daemon is running on the server, my script is listening on port 2345. I create multiple ssh-tunnels from client machines to the 2345 port of the server in order to initiate script execution. For debugging reasons the script simply echoes the incoming information to the connection initiator. This is how the connection is initiated.
Code:
ssh <user>@<my_server_IP> -L 5555:<my_server_IP>:2345
echo "hello"|nc -vn 127.0.0.1 5555 (a port on a client-machine, that is forwarded to <my_server_IP>:2345)
gives "hello" output.
Code:
client1 port 5555|----ssh-tunnel---- eth0|-------server---------------|
[Code]...
The problem is that i need my script to execute some commands (registry parsing) on a remote client machine with winexe utility. So I need to identify each tunnel or each connection in order to execute the command on each of the client workstations. I need at least to have access to some ID of the ssh session or a tunnel, through which a certain connection was initiated and then use it to create a reverse tunnel or just connect to certain client via that client`s tunnel.
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Feb 4, 2010
Starting from January, my Internet connection has become "unstable". I mean that I get occasional interruptions of the connection. This is particularly annoying while listening to a webradio or using voip. Of course, prior to January 2010, I could stay hours or days without interruptions. Now, I have to reconnect manually every 5 min to the service although the reconnection to the ISP is done immediately. So, before I take my axe and visit the office of my ISP, I would like identify where is that connection drop happening. Is it at my pc? at the ADSL modem/router? or the ISP? I use a wireless connection with WPA to my router. Then, the router is basically an ADSL modem. I am running Kubuntu locally. How can I follow up on the network status between different elements and see who is cutting off my connection?
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Dec 23, 2010
How do we check as to how many links have been created that point to a particular file?
Let's say there is this file /work/contacts.dat
and we have, let's say, 10 soft links that have been created by different users in their home directories. Now how can I figure by looking at the file /work/contacts.dat that there are 10 (soft or hard)links pointing to this particular file so that I know that it is being used or refered to by those many users and before deleting it I can check with them.
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May 31, 2010
I just encountered a very weird issue and I am having hard time replicating and identifying the root cause. We have one RH9 server and we received an alert that the /var reached 85%, I checked and found out that /var/log/audit.d is occupying most of the space. It has a lot of files inside it consisting file size of 21MB each everyday. I ask the customer if can housekeep and it eventually climbed up to 100%. My colleague did some house keeping but what he did was he compressed the audit.d directory and remove it.
After that users are complaining they cannot telnet to the server even though the service is on. I have recreated the audit.d directory and restarted the xinetd as usual. Still the same problem. And the weird thing is that I cannot even switch to any user from the root. I tried to do "su - someuser" but it hangs there without doing anything. I also tried to telnet, it will ask for login and password but same thing it hangs in there. Did some restart on xinetd and did "chkconfig telnet off" "chkconfig telnet on" but with no success. Could this be caused by the deletion of audit.d? Or is the 100% utilization of /var the system could not cope up? The good thing is everything worked fine after restart. But still the root cause is unknown. If I check /var/log/secure it shows the user being authenticated though it is not getting any session. /var/log/messages also does not reveal anything.
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Sep 1, 2011
Ubuntu has been reporting a System error problem but when it try's send a report to your servers, it fails due to it's failure of identifying the packet id, i honestly have no idea of how to go about fixing this problem or even identifying the packet that's broken, please do help, as now my Apache server's not working properly, and a couple of other programs are getting affected by this, event installing and updating s an issue.
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Jan 21, 2011
Is it fair to say that connLimit and hashlimit are very similiar on Linux i.e. while hashlimit caters to limits for groups of ports, they both set the connection rate limit per host? How in IPTables, do I configure a policy that limits connections on a port that encapsulates the total sum of all connections from all hosts? i.e. I do not want to allow more than 6000conn/minute for port range that is the sum of all connecting hosts?
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Jul 18, 2010
I'm looking for the best way to identify what distro the user is running and what the desktop environment is running. I'm building some pipeline tools for a visual effects studio and need some generic commands for passing paths to the user's file manager from within Maya and Nuke. The workstations I have access to are FC12 with xfce4 so for that I'd pass a system command :
Code: ("thunar "+$path)I've been identifying Fedora workstations with:
Code: # cat /etc/issue
Is there a command to identify what the current window manager is? Preferably something generic that'll work on the other distros as well.
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May 6, 2011
a. How can I determine the hardware type of the machine where the linux is running ?
b. Also, what exactly is the difference between machine hardware name and hardware platform ? (uname -m and uname -i)
c. Output from my machine shows,
- uname -i as i386 and
- uname -m as i686
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Jun 14, 2010
I just read and learned about logical volume management today. I have a server running RHEL5.4, LVM2. I have 1 physical volume, with one volume group, and 3 logical volumes. I have no free extents, nor do I have any in my volume group (not sure if it's possible to have free in one and not the other anyway), and I am running out of space on one of my logical volumes. Doing a df -h shows 96% of 9.7GB used on /dev/mapper/MainVG-root, mounted at /. So here's the stupid question: how can I find out what directories/files are taking up what space within this logical volume? As I said I have 3 all together, and the other 2 are mapped to /var and a /var pgsql sub-directory. I figured I could get the sizes of the other directories under / and drill down accordingly, but I seem to be missing some basic rule because the commands I am using and the values I am getting don't add up.
For example, it seemed logical to me to do an ls -lsh on / to try and identify the largest directories. Each directory is listed as being ~4-8K in size. That doesn't make sense to me. So I decided to do a du -sh on each directory. Having done this on all of the / sub-directories and added up those values, there is not enough reported usage here to equal 8.9GB of used space (as df -h / reports).how they would find out how the 9.7GB here is being allocated? Preferably without scripts as I am not ready to add a layer of complexity to this yet without understanding some fundamentals.
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Oct 26, 2010
It seems that with ufw enabled It is impossible for upnp applications to negociate with the network router the ports they need to be opened. Is there any way to make ufw and upnp work together?
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May 30, 2011
I recently installed Fedora 15 now, and during installation I set the internet connection manually, then did update and after reboot, the internet connection settings have been removed. Now I can not set because the network connection to the Internet Connection is inactive. I mention that before the update was functional internet connection.
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Aug 27, 2010
how do i set up a ftp sever?
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Dec 23, 2008
I boot linux off a USB stick on many different computers with different hardware. How can I determine in a script which devices eth0, eth1, wlan0 exist and which hardware devices they apply too? Sometimes a wireless card is wlan0, other times it is eth1 or even eth3! The proc/net/dev file does not inidicate which hardware is installed.
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Dec 12, 2009
following on from [URL] I was having a little think about how to make this concept more secure. its easy enough to separate known and unknown clients out via MAC address. but that system is easier to break than it is to set up either, sniff out a mac address already connected to the system, and spoof that address.or, more simply, set a static IP on your wifi device, and avoid the redirection completely. so, is anyone aware of a relatively straight forward setup that would allow me to identify clients on my network without relying on MAC address, would more forcefully separate out known and unknown hosts (vlan??). As well as doing so without alerting them to the fact, and without requiring known hosts to do anything special, or install software. Or requiring any more hardware than I have already. (hardware = a debian box with 2 NIC's acting as a gateway between all internal network, and the billion router which handles the outside world not getting in, and a WAP attached to the internal side of the network. also somewhere I have a wifi card that I could attach to the server to replace the AP) I assume some sort of authentication mechanism is required, but I dont know much more past that.
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Dec 20, 2010
identifying the number of cores each processor is running.
I have checked /proc/cpuinfo but i dont find any core details inside it and I can find only no of processor and its speed.
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Feb 21, 2010
I've noticed in my karmic Koala pulseaudio has many options to make my sound discoverable via upnp/dlna server. I've got a ps3 and a Pinnacle Soundbridge, suitable for this protocol and working fine with mt-daapd or ushare. But I would like to use mplayer and making the sound available to my devices. I've activated the options in Pulseaudio (paprefs) but can't play music in my client device and I can't see the server in the lan.
This is my config:
sound Preferences
> output > DLNA/upnp Streaming (stereo)
paprefs
-Tab Network access
click on "make discoverable Pulseaudio network sound devices available locally" & same for "[...] Apple Airtunes"
-Tab Network server
All options clicked on
-Tab Multicast RTP
Enabled "receiver", enabled "sender" and selected "send audio from local speakers"
-Tab simultaneous output
Not enabled
Padevchooser
- Default server: my pc
- Default sink: DLNA/upnp Streaming
- Default source: internal analog Stereo
Can't see any upnp server.
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Jul 26, 2010
I just ran some system updates today. MySQL was among them. after rebooting. I got a message I haven't seen since I was first installing several months ago. I couldn't connect to the database.
At first, I freaked out because I didn't know what to do. I tried checking my passwords, but I still don't understand all the configuration for MySQL. I tried reconfiguring the myth packages, but couldn't get through the setup. It would just bounce me out after a few attempts because of incorrect password sets.
I finally figured out, from the logs, that MySQL hadn't logged anything since it's 'successful shutdown' after the updates. It hadn't even tried to come on. I started it manually and everything seems to be fine, but how do I get it to start at startup again?
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Feb 16, 2009
I am a complete newbie to linux and Fedora, having previously used Windows/Vista. I have a Netgear router which is configured to allow upnp, and i use deluge as my bittorrent client, though would use either transmission or deluge. I used deluge on windows and upnp worked fine, but now i am usisng fedora with the same settings it doesnt work.
In Deluge (or Transmission) UPnP is ticked and i have limited port range to on port say 57000. In Router config UPnP is ticked. In the Fedora firewall i have gone in and set it up to allow the specified port, say 57000 in other ports.
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Nov 12, 2010
I've been trying without success for sometime now to find a linux upnp renderer. I've tried to install gmediarender but it will not install on my laptop. I have tried XBMC but was hoping for something a bit lighter (like geexbox). Something that comes in a live cd form would be best.
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Apr 19, 2010
i run ubuntu 9.10. i have updated all installed packages. i run a 32bit 3.6 ghz intel p4 dual core with three monitors running on two video cards. all this works correctly. i am able to play video in video player and audacious2 on any monitor.
i'm trying to run a upnp media server for my house. myself and both my tenants have playstation 3s, and i would like to host music, music videos, original content, and the backup copies of legally purchased dvds over the network. i recently converted from windows xp, and all of my media files were created by vlc on windows xp, ripped with winamp, edited and rendered with sony vegas, or downloaded from videos. i have tried both mediatomb (from the repository) and fuppes (from subversion) and had the same result with both.
basically, whenever the media center tries to populate the database and search the files, ffmpeg returns an error that crashes the media center. i do not know enough to implement better error handling in the source. both media servers, when running in the terminal, eventually return the same error message when scanning my sepearate hard drive for media. (~100gb of mp3, avi, mpeg, and mp4 files)
error code: /build/buildd/ffmpeg-0.5+svn20090706/libavformat/mov.c:1456: mov_read_trak: assertion `st->duration % sc->time_rate == 0' failed.
the process then ends.the weird thing is that this does not happen when i disable mp4 files in mediatomb (although i have not figured out how to replicate this feature in fuppes) so i have reason to believe that something in the metadata for mp4 files is throwing ffmpeg off. even if the metadata is bad in the mp4 file, it shouldn't cause a crash.
i tried to compile mediatomb without ffmpeg support, but the ./configure script returned errors whenever i tried to append an option to the configure command. i then reinstalled all the ffmpeg packages in the symantec package manager and still no luck.
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Jul 27, 2010
I have been trying to find something that does this for some time now and discussions on IRC didn't turn up anything usefull - thats why this post for a prolonged discussion I have Ubuntu Server 10.4 installed (no X) and am trying to use it as an upnp media renderer. I would like to be able to playback their music on the servers soundcard from various devices. Thus it would be nice to have the ubuntu server expose an upnp media-renderer which one can use as an output device.
Is there a suggestion on which software to use? What I already have working is an upnp media-server (mediatomb) with ampache, but this isn't really what I'd like since I don't have as much disk-space on the server as I have on the various computers.
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Sep 15, 2010
I've recently moved my media center pc from windows 7 to Ubuntu, now while on windows 7. I used the machine with XBMC and utorrent with upnp enabled on my router (Netgear WNR2000 v1) and also in the utorrent client for the port mapping. I was also able to connect to the machine from work via remote desktop (via Windows RDP, real/ultra vnc) using either a windows machine or via ubuntu that I have installed on a laptop (externally to my network). Utorrent also was able to talk to my router and ask for the ports it needed via uPnp or even by setting the port forwarding manually.
Since upgrading ( ) to Ubuntu from windows 7 on my mediacenter pc I've not been able to connect via RDP / VNC using port forwarding from the outside world although I added ports 5900 and (i beleive) 3389 to the port forwarding section in my router and pointing it to the static ip on my mediacenter. I'm also not able to get the ports to forward for deluge / vuze at all, if i manaually set port forwarding up then nothing happens and deluge says it has no incoming connections and it also doesn't talk to my router to ask for ports via upnp.
The same also holds true for the linux version of sopcast which will not connect to any streams. I can also replicate the same issue on a laptop that I use with ubuntu installed. If I watch my upnp page on my router config then I can see that my windows clients (Brother & Mom's macine) both talk to the router and ask it for ports so I assume that the router is working as it should be but obviously the fault happens when my ubuntu )10.04.1) clients ask for any kind of ports. By default is there any kind of firewall installed on ubuntu or anything I need to do to allow it to ask for upnp connections?
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Apr 1, 2011
Rhythmbox plays local m4a files no problem. I have a few upnp servers running on other machines around the house, mediatomb, tvmobili, vuze, mythtv. Rhythmbox is setup with the coherence plugin and happily plays mp3 from these servers but it cannot 'see' any m4a files via upnp, even though it can play the same files if i copy them to the machine that is running rhythmbox.
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May 29, 2011
It even has a great android app. It does a great job automatically organizing all my movie and tv show files. I was though quite disappointed when i found out it didnt have upnp support anymore and therefore would not stream things to my WD TV Live, etc.
I know how to easily setup a dlna server using minidlna or ushare, but neither would automatically refresh my file listings (if you tried a cron, it would interrupt the current stream and of course I would prefer as close to real time updates as possible). It also of course didnt provide any automatic naming/organizing/images of the videos that Plex would do.
Any recommendations on what might be available out there that would provide all the features I mentioned above, but would provide the data in a more standard format like upnp/dlna instead of the proprietary format that Plex offers? I am also open to ideas that would get Plex to work with the WDTV Live.
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Jan 3, 2011
i have a webserver in my local networkthat is myname1.myserver.comnow i want a second webserver runing in the same sever system.my projected name should bemyname2.myserver2.com
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