im trying to send pages of 4096 bytes from kernel layer of server to kernel layer of client over a network. previously i tried the foll. code , for data less than a 100 bytes it worked fine , but for something larger than that the computer hangs......(even the dmesg's wont say why) i also wanted to know how we could use the 'sendpage' function to solve this problem.
Every time I right click on my CD/DVD with my DVD+RW popped in the drive, it freezes for like 10 minutes and then it unfreezes with nothing happening.I think I formatted it before using ImgBurn but when I did it went from 4.7GB capacity to 3GB. Is it possible that I accidentally turned my double-layered DVD to single-layer? If so is there a way to turn it back to double-layer?
seen this or have suggestions on how to fix this. I can read the original disks but I cannot read the backup. The backup disc was burned on Window$ using Nero.I am trying to read the disc using both VLC and Totem but you can see in /var/log/messages there is an issue with reading the disc. This disc is readable in the Window$ box and on all DVD stand alone players.
Feb 21 20:17:09 delltop kernel: [40761.304725] sr 0:0:1:0: [sr0] Unhandled sense code Feb 21 20:17:09 delltop kernel: [40761.304752] sr 0:0:1:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
I'm using Ubuntu 9.04 and I cant read dual layer DVD's. When I put the disk in it spins and makes clicking sound sometimes. It shows up in Places as "Myfiles". If i try to mount it it "DBus error org.gtk.Private.RemoteVolumeMonitor.Failed: An operation is already pending". If i try to eject "DBus error org.gtk.Private.RemoteVolumeMonitor.Failed: An operation is already pending".
What's the difference between dual layer and double layer DVD recording drives? Everything I read they are the same thing but different manufactures use both terms. I want to get the Lite On SOHW1633s drive but I want to know if it will record the 8.5 GB capacity.
I have downloaded both the 32 bit and the 64bit version of slackware, I have a dual layer dvd and I was thinking to put both versions on one dvd! I just want to be able to choose which one to install with a simple menu. How can I do this?
I use Bluewhite64, a Slackware64 derivative. Next, I don't use KDE or GNOME. What free tools (command line ok) would do this job? Examples would be nice, too. Most of my HD recordings are approximately 7 GB.
Am slowly parting company with MS Windows. I have been using this app to convert, burn, and then be able to play on most all DVD players, ConvertXtoDVD. Is there something I can use in Ubuntu that is fairly easy? Also would like something in Ubuntu to convert and burn to Dual Layer media and then play on standard DVD players.
Having some troubles with NEC AD5170A device - it can`t read any dual layer disks. First layer reading is ok, but when drive switching to second layer it stops and don`t read any data from disk. Media - licensed DVD video disks. Same drive in windows read everything. I try to update firmware, but it doesn`t.
I've been interested in Synfig for a while. In the last version of Ubuntu, there were some problems so I couldn't install it. Yesterday I remembered the program and decided to try it on 9.10. I was amazed, it installed fine and everything worked just how it should. Then later last night, I must have done something because everything turned invisible and when I created a new layer or shape, nothing new appeared.
I fiddled with it for a while and then reinstalled the program a total of like 3 times just in case that would help. Then, I went straight to the Synfig site and downloaded the newest version. It looked better, different, but it behaved exactly the same. I'm very confused and I would like to use Synfig, it seems amazing. I assume there's some little thing I missed or something I pressed that I shouldn't have. Here are screen shots of both versions.
I try to watch flash content but everything is covered with a pink layer... (see attachment file). I am using firefox 184.108.40.206 (same prob with opera!) and flash 1.0.2.r152 in ubuntu 10.10 with compiz disabled and GPU Override set to true (no difference with false..) I tried FlashAID for a clean setup and I have only flashplugin-installer on my laptop (no gnash or libswf...), I also tried it with the package "adobe-flashplugin" same problem. This and the a2dp-skips are my last problems before a perfect setup.
When I try to play a dvd and give mplayer no options, it defaults to "X11" for the video output, which maxes out the cpu. To get around this, firstly I tried to play the dvd using "cvidix" in the console.
I used the following command: mplayer -ao alsa -vo cvidix -fs -framedrop -stop-xscreensaver -dvd-device /dev/dvd1 dvd://1 This played the dvd, but the console text was still visible over the top of the movie; i.e. mplayer was playing in the layer beneath the console text
Then I tried using xvidix in X: mplayer -ao alsa -vo xvidix -fs -framedrop -stop-xscreensaver -dvd-device /dev/dvd1 dvd://1 This gives a green line about 5mm thick down the right side of the screen, but other than that it is ok.
I am looking for a layer 7 firewall. I have to redirect rtmp requests for different hostnames coming at a gateway to internal servers at LAN at their respective hostnames. Code: IPTABLES some stuff -p rtmp -hostname to server 1 like that. Or if not IPTABLES then some other feasible solution.
I want to know the IPsec-Advantages and Disadvantages that arise because of its location on the network layer in the OSI-Model. I read rfc2401 and rfc4301 specifications to find out the advantages and disadvantages of IPsec being located on the network layer in the OSI-Model (equivalent to Internet layer in the TCP/IP protocol stack). I really could not find enough good reasons for the advantages and disadvantages of IPsec being located on network layer. Here are some of them that I could think of:Advantage: - No application-specific implementation is needed (in comparison to SSL/TLS) - The ability to connect two subnets on the internet (tunneling mode) - Ability to encrypt the traffic between two end-points (transport mode)Disadvantage: - Complex implementation of ipsec itself - High computation performance when AH and ESP both activated - No encryption for the packets to the destination if it is arrived on the subnet on the other side when tunneling mode is activated.
(the network traffic is no more encrypted inside the subnet)What else can you guys add more to these advantages and/or disadvantages? The focus is IP-sec location on the network layer. (it is a kind of comparison to ssl/tls which is upper layer protocol)I would be grateful to any responses.P.S: I hope that this thread has landed in its right place.
I have a Allied telesyn layer 3 switch and some how its boot.cfg file is deleted, I have backup for it, now don't know that how to upload that file to switch. and I have RS-232 Terminal which I tried to connect but its doesn't connect also can any budy tell me that how to upload the boot.cfg file again to the switch.
I want to implement a cross layer approach. I want to pass the network information such as delay from the MAC layer to Network layer. Can you tell me the way I am new to this. I am using linux (fedora). I think some system call will do the trick. Correct me if I am wrong. (I want to implement QoS matrices)
Is it possible to insert a layer break on a dual layer dvd with k3b. I've burned a movie onto dl disc but it freezes up in the middle, some research I'v done suggests that I have to insert a layer break but I can't for the life of me figure out how.
Im new to Fedora and im already loving it. I only have one problem and that is that I can't play mp3 files. I use Rhythmbox 0.13.1 and it starts but when I play a mp3, It says that in need a mpeg 1 layer 3 plugin. I already found a tutorial that says that i need to install these.
I issued the command 'mkisofs -dvd-video wss.iso ./juan', where the dvd-video files in ./juan/VIDEO_TS made a total of 7.5GB. Later on I'll use the image to burn a double layer dvd. But mkisofs, after working up to the middle of the process, said: 'File size limit exceeded'. I don't want to burn on the fly and therefore
I want to write a new protocol on transport layer. These are the features that new protocol should include:
-Real time -Concurrent transfer -Multipath and Multihoming
the reason why i should write this protocol is in order to transport encoded video stream over 3G link. When i investigated TCP UDP or SCTP source codes, i couldnot understand them at all. What ı want is to help me about steps of the protocol writing or guideline about it. How should i start, is there any book or source about it (i couldnot find over my internet research).
I'm looking for a way (kernel patches, configuration, etc) to bond multiple network interfaces together but for limited purposes. Here's the setup. Machines A, B, C, and D each have 4 NICs, each of which are on separate unmanaged switches. The connections are made in a corresponding way. e.g. eth0 of each machine are connected via switch 0, eth1 are connected via switch 1, etc. There are also other machines which have only one NIC and are connected to switch 0 only. All NICs for A/B/C/D and the switches are gigabit speed. The remaining machines have a low traffic level. Machines A/B/C/D need the extended bandwidth. And this bandwidth need usually involves only one connection at a time.
E.g. machine A transferring files to machine C with no other traffic going on. The speed need is to cut the transfer times from several hours to few hours (such as 8 hours to 2 hours). Transfers of up to a few terabytes at a time are involved. IEEE 802.1AX won't accomplish this. It requires special support from a single switch that all connection go to (raising costs and reducing reliability). Also, from technical details of 802.1AX, it appears that a decision process is made for which traffic goes over which physical link based on destination information. It's unclear what impact this will have, but it looks like at least a single TCP connection cannot use all physical links.
And possibly all traffic from host A to host B is limited to a physical link (not any better than a round robin of crossover cables). What I am looking for is something that works entirely on an end-to-end basis within a LAN. If it works at the link layer, that could be OK as long as it doesn't have the limitations of 802.1AX. Working at the IP layer would be OK, too (as I can already envision the logic of how to make that work). This might be an experimental patch to the Linux kernel if anyone has tried it. I have not dug into kernel source to see what might be in there, yet, but will eventually do that if there isn't a patch already available.
Our ISP provides us with Layer 2 hardware (Modem?/Switch? (Hatteras)) for our leased line and internet access. I have been told that I should set up a VLAN capable router to separate the internet traffic from the internal traffic. I found that linux is capable of VLAN routing. Nice!
I have setup opensuse 10.3 put in two NICs and did the following vconfig add eth0 10 vconfig add eth0 20 ifconfig public.ip.add.ress netmask 255.255.255.252 eth0.10 up ifconfig 192.168.0.1 netmask 255.255.255.0 eth0.20 up
Plugged this NIC into the HATTERAS hardware (with a straight cable), and thought that this way I should be able to ping the public gateway or any ip out on the internet. My ISP is telling me that I should create a VLAN trunk to be able to 'use the internet', but as I understand in linux if I create any number of VLANs on one NIC they are already trunked. I also got the info, that the traffic is tagged, and I can separate the traffic reading the tags. I already read that some NICs are not able to VLAN because they are not able to handle the increased packet size.
Also that the MTU setting is important (dono' the exact value though, only that its important). I thought that a linux machine can act as a router and firewall in such a case, because proprietary switches/routers use linux as embedded os. This is my first meeting with VLAN so if this whole post does not make any sense or you think that I just need to RTFM more then tell me! I also have some (3) Dlink 3226 Layer2 switches around, but I think it would be waste to use a 24 port switch on this subject.
I backed everything up and did a complete re-install of the system to 10.10. I had a widget layer with compiz before I did this and now it is not even an option in the preferences. Am I missing something?
I was running 10.10 before as well and it was there.
I've downloaded some files from the Internet Archive. They come in different file formats and most of the time I use pdf. However, sometimes the scans are saves in colour instead of b/w. This makes it difficult/impossible to read on a dedicated ebook reader. In that case I downloaded the djvu files as on the PC you can select which layer (color, bw,fore,back) one would like to see. Selecting the bw gives excellent results. However, the ebook reader does not has this option.
The question is, how can I remove /extract a layer from the djvu file and save only this layer.
So far I've tried the following two approaches:
1) select bw in the djvu viewer on the PC and printed to postscript file. Followed by a ps2pdf conversion. This works, but generates a fairly large pdf file. Sure, I can again upload it to any2djvu but it just seems to much manual work for each file.
2) I tried the shared annotation feature and said (mode bw). This works on the PC as desired but is ignored on the ebook reader as the other layers are still present.
I was wondering how to install the Link Layer Topology on CentOS 5. I have installed the lld2d daemon from a Debian how to after compiling it. It seems to be running but it is not talking to the Windows 7 network mapping.
We run redundant switches that two nic's on each server connect to. We also run bonding on our servers. Because we have two switches, we can't run lacp or anything. If a switch goes into a crashed state where it doesn't pass traffic but still provides link, bonding thinks the interface is still up and thus will still send traffic through it. Does anybody know a better way to configure the fail over of the interface? This would be a similar situation to somebody using a media converter.
In 9.10 I had compiz turned on, and had enabled the widget layer so I could hide the top & bottom panels (pressing F9 displays the widget layer).However I don't see an option to turn on the widget layer in the Compiz settings in 10.01?