Networking :: Broad Networking - Video - VOIP And Backups
Jun 12, 2009
My home networking consists of a slackware box, running iptables with a dual NIC. That's the firewall. I have a Netgear FSM 7352S, which is a level 3 switch, which I am currently just using as a switch. Clients are numerous PCs and a couple of networked printers.
The "firewall" machine is also a file server.
Here are the issues I could use some pointers on:
I'd like to assure that the VOIP adapters get priority, assuring QOS, particularly voice quality.
I'd like to provide reasonable priority for video streaming, such as hulu and other sources, that the kids use.
I'd like bulk data transfers (like backing up partitions) to the file server that runs iptables, and acts as the firewall/gateway for a cable internet connection. It would be good to be able to do this without impacting VOIP and video streaming.
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Aug 22, 2010
I have been using Broadcam Wi-Fi cards for years and always have problems getting them to work well with Linux. Not too long ago ( 6 months) I replaced my broadcom card with an Intel Pro/Wireless 4965 card. Wi-fi is 1000% better now. Connects very well and well connect to systems that I could not ever see before. So I said get an Intel card and toss your Broadcom card away and start demanding that your next computer have an Intel card as these cards have native support in the Linux kernel.
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Oct 4, 2010
is there a command (set of) which i could use to connect my USB modem while in recovery mode?
what happened?
well, i tried installing Drivers for my ATI VGA and then uninstaled them (in order to install the edgers drivers). soon after the reboot i found out my key board n mouse is not recognized in GUI.
i found a little work around here
Quote:
That means that you do have keyboard in that mode & there are no seriously misconfigured packages. It's the 'netroot' menu selection & don't use 'sudo' in that mode as you are in a root shell. And while there, ensure that you have established a connection (ping [URL]), and then:
# ping ubuntu.com
[if this works, then proceed with the rest]
# apt-get update
# apt-get upgrade
# apt-get install -f
[Code]....
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Feb 17, 2011
sometimes our ADSL connection gives up and we are left without internet connection for days until the problem gets fixed. I mean by this problem along the phone line. It affects all machines that connect to the internet through a Netgear WIFI Modem Router. I recently tried an alternative when this happens is to use a USB Huawei Mobile Broadband UMTS connection which works when you insert it in 1 laptop. Is there a way i could get the Netgear WIFI modem router to connect on that usb stick or PC that is online on that usb stick and give access to other machines that will want to connect to the web ?
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Jul 29, 2010
how to install broad band wireless modem (netgear)ADSL2 on Fedora core 7
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Jul 16, 2011
I just setup a linux machine that act as a gateway along with squid running in transparent mode. Now I have one asterisk server which is behind that gateway I mean on my local subnet which pass through my linux gateway. Voip server having 4mb up n 4 mb down limit. Clients having 512kbps and upload 2mb.
Linux gateway : controlling band width of each clients
Squid acl forNAT issue with voip sites
Now my question is regarding skype calling. Since skype uses port 80, does it mean that it passes its request via proxy or direct and for safe side I've changed skype incoming port to 443 which squid does not see it. How much and width does skype use for calling in that case. Some one told me that it using squid to pass its request which I don't agree.
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Apr 15, 2010
I was given a project of installing a new Jive VOIP PBX and will be migrating it from an older Avaya PBX. I need to perform in order to migrate the DID's and extensions and etc from the old system to the new? It is something that I have never done and have been ask to perform a miracle. I have never used JIVE VOIP PBX's and am familiar with Trixbox stuff but for smaller business and nothing of this size.
[URL]
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Nov 8, 2010
I have Ubuntu 10.10 server gateway:
Code:
_______________________________
| ISP1 |<---->|ADSL modem, internal IP 192.168.1.1 |<------->|eth0 IP 192.168.1.10 |
|ubuntu server |
| ISP2 |<--------------------------------------------------->|wimax0,
[code]....
My goal is LAN must use ISP 2 to go to Internet and VOiP server must use ISP1. So, I write some iptables rules:
Code:
#!/bin/sh
#
IPT="/sbin/iptables"
# Internet Interface
[code]....
But there is problem: packets from DMZ network are not natting or may be something else wrong.Also my routing table:
Code:
# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 199 0 0 eth0
[code]....
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Jan 27, 2010
I'm trying to setup QoS for my VoIP line on my debian router box. I have tested wondershaper and to me it doesn't seem to work at all, so I'm looking for a better solution. Ultimately I would like something in the lines of [URL] but I guess such nice things doesn't exist for linux. Currently I'm on an ADSL link switching to cable in a few months.
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Dec 9, 2010
I'm using tcpdump and tcptrace to track all incoming and outgoing data packets through my network interfaces. But I fail to monitor the voip data for skype that way, although it works well with http port 80, for example.
I want to track the ip address of the data packets for skype, i.e. know the ip address of the other one speaking at the other end of skype. How can I achieve this?
I've checked the port setting in my skype and I'm sure I'm listening on the right port. But nothing is showing up while I'm in connection with skype.
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Jul 17, 2011
I have a complex network. ADSL broadband comes into the house and connects to an Orange Livebox. An Ethernet cable then connects the Livebox to a more powerful router, a DrayTek Vigor 2710Vn. The reason for this is that the Livebox has a second line capability using Voip, but it is not powerful enough to get around my stone house. The DrayTek router has Voip capability, but as yet Orange will not connect the Voip line to it. I connect to this system with Ubuntu. Android, Windows and I-phone. I can connect to either of the routers, though I usually use the DrayTek.
Voip on the Livebox does not require a computer to run it, you just plug a normal phone into it and use it to get free calls. I actually take this line into a Panasonic telephone switch to give me a 2 line system around the house. The problem with this set-up is that after a short time something happens to the network which prevents Ubuntu computers connecting to it. Windows machines, I-phones and Android phones connect, but Ubuntu does not. If I re-boot the Livebox, or in an extreme case take it back to it's factory settings, the Ubuntu machines can connect again, but it's only temporary.
The fact that fixing Livebox sorts the problem definitely points to Ubuntu being innocent, but at the moment I can't do without the Livebox. That means, for the moment, having to stay with Windows. If I post the output log after a failed connection attempt, all it would show is the connection timing out. Why is Ubuntu so sensitive to network problems that are not of it's making. Is there anything I can do about it other than changing my ISP. I am considering that, but other factors make that difficult.
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Jun 5, 2010
I have two asterisk servers each one behind a linux firewall/gw. Linux is Centos 5.4, kernel 2.6.18-164.el5, iptables v1.3.5. Routes on the fws are ok and when iptables is stoped the servers are see each other, all good. But when I run iptables script in any fw, one server (not always the same) goes unreachable. I verify this with asterisk -r, then show sip trunk, and status becomes UNREACHABLE.
Iptables scripts is generated by fwbuilder. The weird part is I put only one rule to de script and it looks like Source=any, Destination=any, Service=any, Interface=any, Direction (Inbound,Outbound)=any, Time=Any, Action=ACCEPT. So as you can see I tried something like "Do not do anything at all". But anyway I run the script in any fw and one server becomes UNREACHABLE. I think the script does something wrong after all or maybe I have some missconfiguration in my asterisk conf files. The point is I am not so expert in iptables or shell scripting so I can't see anything in the iptables script. I have look for some issues like iptables blocking because of ip_conntrack table full, or "dont fragment" bit set in kernel problem, but nothing seems to be the right problem at all.
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Nov 7, 2009
I have recently bought a IP/PABX system with one FXO and one FXS port. I intend to install this on a remote site with a public but dynamic IP (can be resolved via dyndns though) and make calls via clients that are NATTed (inside a home router). I would like to seek advice on the port opening and the recommended settings. I have been reading a lot on VOIP and I am getting feedback that SIP calls are difficult to establish on a NATTed environment.
1.) SIP port 5060 UDP?
2.) RTP ports - what range should I open for this? I see some use 10000-20000 UDP
3.) STUN server - Is this something that needs to be configured?
How can I ensure that the other party can hear the audio just like a regular telephone? Is it really impossible to do if the client is behind a router in which it is using a Private IP Address? What other network configurations needs to be done?
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Feb 10, 2011
I`m using Fedora 14 and i`ve one problem, i use x-lite phone on windows and what is x-lite alternative for linux ? i`ve found x-lite phone for linux but it dont work fine . It has problems with sound card etc. What do you recommend?
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Aug 2, 2011
I am complete new to the technical side of VOIP. I know above diagram is not technically correct. I want a setup that works like that and oh the cheaper yet not compromising the better, even ekiga or skype can do that.
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Jun 8, 2010
I have a client that is using a windows based backup system called Retrospect and will be installing Linux to replace his windows server. Right now the way it works is on the XP pro workstation Norton 360 makes a backup to the server and then Retrospect make it backups every night. I want to add a linux based backup system that will give them a historical backup system that had XP pro client software that can backup open files and such I can do away with the Norton backup stuff and streamline this setup. I need it to have the capability to go back in time to restore something of an older date this historical. I was looking into:
[URL]
I have never used either one and was wondering what the linux community wold recommend between the two or if there is something better that has client software and free and does it have a GUI for my clients? I am leaning toward AMANDA after reading Jeremy's article:
[URL]
and there seams to be a webadmin gui as well.
[URL]
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Oct 6, 2010
I'm trying to set up rsync backups on my ReadyNAS and I'm getting the following error: ERROR: The remote path must start with a module name not a / This error is accompanied by the following information:
[Code]...
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Mar 19, 2011
I've been trying to create file sharing between my MacBook Pro and my Lucid Lynx box for time machine backups and media server purposes. I followed this guide:[URL]..Everything seems to work with these exceptions: I can see my LucidLynx box in my finder app in my Mac but only when I run these commands from Ubuntu:
Code:
sudo /etc/init.d/netatalk restart
sudo restart avahi-daemon
If I restart my LucidLynx box then I can't see anything in finder. I can't log into my LucidLynx box from finder. I don't get a bad username or password error it just tells me the connection failed. *Note if I do enter an incorrect username or password it WILL tell me it's incorrect. I've looked at this link below since some people have used it in theses forums but it's a bit dated[URL]..
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Feb 3, 2011
I've been a DOS/Windows guy for 20 years, and recently became a SW test lab helper. My company uses CentOS for a lot, so I've become familiar with it, but obviously not as comfortable as I am with Windows.
Here's what I have planned:
machine: Core 2 Duo E8400, 8GB DDR2, 60GB SSD OS drive, ATI 4650 video card, other storage is flexible (I have 3 1TB drives and 4 750GB drives around that can be used in this machine.)
uses: HTPC, Network Storage, VMWare server host: SMTP, FTP server, and Web server virtual machines
I've figured out how to do much of this, but I haven't figured out how to do backups in Linux. I've been spoiled with Windows, with the built in backup system so simple to use. I find myself overwhelmed with the array of backup software, and unable to determine which to use. none of them seem to do everything I need them to do, but some come close, I think. I'm hoping someone here can help me out in figuring out which program to use and how to use it.
Here is what I need the backup software to do:
1. scheduled unattended backups, with alerts if the backups fail
2. a weekly full backup with incremental every 12 hours
3. removing the old backups when the new full backup runs, I would prefer to keep 2 weeks of backups, but that's not necessary
4. a GUI would be preferable, since my arthritic fingers don't always do as I want them to do. I typo things a lot, and the label worn off my backspace can attest to that.
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Nov 12, 2009
How do you get Rsync to do incremental backups rather than full backups? At the moment I have a script that will create a backup folder (if it doesnt already exist) then copy the source files into the backup directory with the command
rsync $VERBOSE --exclude=$TARGET/ $EXCLUDE --exclude '/Ls-wtgl1c8/**' -rt --delete $source/ $TARGET/$source/ >> $LOG_FILE
Target is where the files will be backed up to Sources is the dir(s) to be backed up Exclude files is the list of files not to backup
log file is where the output will be saved to. At the moment it only does full backups, but I would only like to do incremental, how would this be achieved? Am I missing out an option in the Rsync that is required.
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Jul 21, 2010
I dug up an old P2 machine and loaded it with 320MB of RAM and a cheap BIOS-less RAID card using a VT6421 chipset. I attached a 1TB SATA HDD to it and booted it up with the latest gentoo minimal install disk. I have installed gentoo before. The first problem I had is that the system would hang at Scanning for sata_via.... I resolved this by booting with "nosata." This brings me to my first question: Will I be able to use my drive once the OS is installed? It seems like the answer would be yes, but I wanted to make sure.
After booting with the 'nosata' option the system would hang at scanning for pata_qdi.... I resolved this by booting with 'noload=pata_qdi.' Now the system is hanging at: attempting to mount media:- /dev/hdc I have been searching but have not found anything definate on this one. One post ( i am sorry but i forget where; i was working on this for hours) suggested that the problem is caused by the age and speed of the drive. I really don't know much about these things. Can anyone confirm this? Is there a way to make it work, or do I have to replace the drive? If I replaced the drive won't the new one just slow down to accomodate the old motherboard?
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Mar 8, 2010
I have recently started using Ubuntu, i need help in installing the sify broad band client on my machine.
1) Where can i get the software for installing the client?
2) How do i install the client once i have installed the software?
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Feb 23, 2011
I want to simulate video traffic in ns2.31 .I have added mpeg4_traffic patch in Contributed codes in NS2 web site . I receive segmentation fault error ,when I debug code I got a lot of error ,I don't know what to do ? does no one know how should transmit video in ns2 ??
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Apr 19, 2011
i am doing a project based on the linux OS in this i want to implement a streaming server to create the traffic i dont know about these thing so can you let me know is there any servers available if so could you explain step by step installation of server and client.i am using fedora 13 linux
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Jun 3, 2010
I'm planning on setting up a linksys wireless camera to keep an eye on things while I'm away for the summer. What I'm wondering is if it would possible to send the video/images it captures to an ubuntu ftp server I have and if so how would I accomplish this. The camera I'm planning on getting has a built-in webserver, but from my understanding the video feed can only be accessed from local computers.
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Mar 24, 2010
I am streaming a MPEG-2 transport stream file over RTP from system A to system B . System B is continously copying huge number of small size files using scp to system A . The problem is while copying files from B to A I expecience packet loss on the received streamed video
The two systems are connected via a LAN switch.My question is : Is it happening because scp traffic interfering with streaming video . Or there can be any other reason behind this.
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May 3, 2009
Basically I've just set up a very basic network connecting my vista laptop to fedora 10 laptop via ethernet. I download from the fedora box to an external hd which I can access from both computers. So, my question is, is it possible to have the same video play on both machines, in sync?
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Jan 13, 2010
I recently just installed Ubuntu on this laptop and I have a issue with playing back videos on my LAN server.
Thing is, I've got another computer too where it works flawlessly so I was wondering what causes this on my laptop...
I mount the FTP location and I get access to all the files on the server. On my other computer, I can basically just click any video file and it would act as it would if it was on my HDD already, but when I try to do that on my laptop it will not play the video file at all.
I've tried several media players too, but I usually just use VLC so here is the VLC error:
Code:
And then ask if I want to repair it. However, once I drag the file over to my desktop it works.
So why won't my media players read video files over FTP?
And the whole "Connect to server" is acting a little weird. If I try to use the DNS of the server instead of the local IP I will not get any response. However, using the DNS in other applictions do work.
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Mar 18, 2011
I am thinking of buying a router with a usb port where you can plug a hard disk and have ftp access on it. Would it be possible to listen to the music files or play the videos directly from the disk, instead of having to copy them locally every time?
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Jul 17, 2011
I have a Windows machine with a 2TB hard drive containing several raw videos I want to encode with Handbreak. I have two laptops I want to use to cut down on the time. These laptops have very small hard drives, and probably can't hold more than one or two videos at a time. I was wondering if there is a way to keep all the videos on my Windows machine and just use the laptop's to encode over the network, or at least have it automatically copy the raw videos, and put the encoded ones back as needed. Long story short: one big hard drive, three CPUs to encode, need to split the work up quickly.
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