As i am posting in this forum you might already have guessed that I am a total linux noob, but I am a pretty faster learner. I know a few basic things but I feel like I am stuck with my problem.I want to send the Magic packet (wake on LAN) from my linux machine to another, but I am unsure how to approach this. I have google�ed my ass off but I am none the wiser. I found a few forums posts and programs that can do the trick and guides in how to use the programs but I have no idea how to install them.You have to know that my linux machine is a NAS server and has therefore only Konsole access (no GUI). As I said before I am pretty much a noob
On Linux, is root privilege required to send a wake-on-lan magic packet? If it depends on how you send the magic packet, please let me know under what situation root is required.
I am the new user to ns-2. I would like to know is it possible to send the keys or some value as the packet data (content of the packet) in ns-2 (for wireless environment).
I am trying to remotely wake up my computer. I am using the wakeonlan tool as follows wakeonlan -i 146.x.x.x 00:0f:.I have used wireshark on the remote computer and verified it was getting the magic pack. wireshark sees the packet, and immediately the remote computer sends an ICMP dest. unreachable (port unreachable) packet back, although I assume that is normal.On the remote computer, I used ethtool so I am enable to verify that suports wake-on is set to "g" or magic packet.
I believe that wake-on-lan is enabled in the bios. I have a hp dc5000, so I turned on S5 wake on lan in the bios. However, the computer does not wake up.My assumption is that once the computer is off, the router doesn't know where to send to packet because that ip is not there anymore. Does that make any sense? What other troubleshooting steps can I take? I don't have control over the routers though.
I am facing problem(system gets crash) while I try to send IPv6 packet by using my kernel module. I have given the code and makefile for my module. I will appreciate if any one shares any tester module for sending IPv6 packets.The kernel version that I am using is 2.6.9 and it supports for IPv6.
Can someone help me with this problem,trying to send a packet,using tcp/ip,the packet should look like this:
Code: field 1: SOCKS protocol version, 1 byte (0x05 for this version) field 2: status, 1 byte: 0x00 = request granted 0x01 = general failure 0x02 = connection not allowed by ruleset 0x03 = network unreachable 0x04 = host unreachable 0x05 = connection refused by destination host 0x06 = TTL expired 0x07 = command not supported / protocol error 0x08 = address type not supported field 3: reserved, must be 0x00 field 4: address type, 1 byte: 0x01 = IPv4 address 0x03 = Domain name 0x04 = IPv6 address field 5: destination address of 4 bytes for IPv4 address 1 byte of name length followed by the name for Domain name 16 bytes for IPv6 address field 6: network byte order port number, 2 bytes and this is my code:
Code: int domainLen = strlen(domain); char reply[domainLen + 7]; reply[0] = 5; // version reply[1] = 0; // succed reply[2] = 0; // reserved reply[3] = 3; // its a domain reply[4] = domainLen;; // lenght of domain for(int j = 0; j < domainLen; ++j) { reply[j + 5] = domain[j]; } reply[5 + domainLen] = 80; // port reply[20] = '�'; Send(reply, sizeof(reply)); domain is "www.google.com". Am I doing it right ? I dont know much about bits.
I'm writing to you because I encountered the following problem. My program displayes all network interfaces that are available in the system, but I would like to adda functionality in which a user can enter a destination address IP (ex. the IP address of the Google search engine) and will get information which network interface will be used to send it. As I know it is associated with reading information from routing table in the system. Maybe you know the API (functions/methods) which I could use to do it in RedHat ? I program in C/C++, but if you know how to do it in other programming languages (Java, Perl, Python) I will be grateful for any information.
I am trying to generate a UDP syslog packet from my C application. But I am facing a problem with a Cisco Router ACE that does not like the Source Port being '0' and thus drops the packet.How can I specify the Source Port in the UDP header to '514' as stated in RFC3164 (Section 2: Transport Layer Protocol)? "It is RECOMMENDED that the source port also be 514 to indicate that the message is from the syslog process of the sender"
I have found many examples out on the www for creating udp servers with sockets. The problem I am running into is after I receive the packet from a host I need to be able to send a custom made packet(I'm using RawIP / NetPacket to make my packet) back to this host. The only way to do this is seemingly through the send() function. This function however doesn't appear to allow me to specify which host to send my packet to.
I got a problem with my CentOS server. Somebody told me OpenVPN Requires different changes inside my firewall settings. That could be the problem why openvpn wont load..I receive this error on my CentOS panel when im trying to connect into the centos openvpn (with my winxp pc):
I am using ascript for general users to back up usb drives to lto4 tapes.. I wish to ahve some error checking to check IF is there is a tape in the tape drive to check for the tape:
if i do a sudo mt -f /dev/st0 status i will get back a mt: /dev/st0: rmtioctl failed: Input/output error if there is no tape in the drive or sudo mt -f /dev/st0 status
What file system choices do I have for fedora 14, what is suggested and can parted magic provide that system?I am loading fedora on the second hard drive of my laptop with windows 7 and XP pro on the other hard drive and I will also be repartitioning and reformating the first hard drive because windows 7 is 64 bit and the xp is 32.
I was just introduced to Linux official a few days ago : The problem I am having I am trying to Set up Magic Jack on Ubuntu 9.10, and I have no clue how to get it to work.
Where in Compiz we can make that. just open the windows like magic.... like this: [URL]. I search all night all compiz and I cant find where is for make this. When the windows open make this effect.
I have a hard disk that I would like to completely remove UBUNTU from. There is no other OS on it. UBUNTU is on all of the HD no unused partitions that I can see or other windows system here at all. I would like to completely remove UBUNTU and remove GRUB also. and be able to use this HDD for a windows system. Most of the threads I have read here in the forum relate to removing ubuntu from a dual OS HDD . There is talk of using partition magic or other utility to remove or change the partitions,but most of them are about a dual OS system, whereas I have an HDD with only ubuntu on it. Does UBUNTU have an uninstall program that I can download? Does partition magic remove the Ubuntu OS? Grub?
" > logfile.txt : gives an error extra character after the "
2- logsave logfile.txt 'send "show command;
" ': error invalid command
3- i simply tried to send the output of the whole script to file logsave /home/logfile ./script : seems that logsave work under root only
4- ./script > logfile : the problem with this is that the output of echo or (read "enter your id") command will not be displayed on the screen (actually nothing will be displayed, i have to open the log file to see the output). is there any way to save the log of the "send" ? or to save the log of the complete script without hiding the output on the screen?
I have come across a problem on my Scientific Linux, I have searched the forum but couldn't find what I am looking for, so I decided to post my question here.well, here what I did: under the Terminal I got Cramfs-1.1.tar.gz installed, and then i used the "make" command to build the cramfsck and mkcramfs and it was all successful.so now I have an image I called it "backup.img", and I tried following command:./cramfsck -x ./output backup.imgbut unfortunetly I got the following message:./cramfsck: superblock magic not foundSo I kept on thinking what is this Superblock magic thingy? I did a google search but I kind of got lost and didn't end up finding anything useful, but I am just thinking it could be some kind of package which I need to install? I tried the following command:apt-get install magicbut it seems there is not such package exists with that name.
I've compiled and added a kernel in Gentoo before. It doesn't seem to go quite as smoothly in Kubuntu 9.10 These are the steps I followed: I unpacked the kernel in /usr/src and ran make && make modules_install succesfully. Then I copied the kernel in arch/x86/boot/bzImage to /boot/bzImage-2.6.32 This entry is the one given by Kubuntu:
Code:
menuentry "Ubuntu, Linux 2.6.31-14-generic" { recordfail=1 if [ -n ${have_grubenv} ]; then save_env recordfail; fi set quiet=1
[code]....
I just read the script that update grub uses. Changed the name of the kernel from xyz to vmlinuz-2.6.32-generic and it worked.
Currently i am working with linux code. I need help in printing data in ip packet. In my program i am defined the headers and defined ip packets. But I am having problems with printing data in the ip. I am thinking that for loop has to be used, but what parameters to use
I am trying to send data via UDP using sendmsg on the sending side, and recvfrom() on the receiving end.The setup for my data is to have an iovec that has a packet hdr, followed by an iovec that has a payload, then to have subsequent sets of these two types of iovecs. On the receive end, I have a while true loop that does a recvfrom() receiving a size of 1 hdr/payload combination.When I do send out a message that has a total of just 4 iovecs (hdr/payload/hdr/payload) and I use recvfrom on the remote end with a receive size of a hdr/payload set,only the first hdr/payload of the sendmsg is received.I was under the impression that using this while true loop would allow me to receive multiple sets of this hdr/payload combination that is sent out by sendmsg().
I am trying to get an arp packet from my wireless wifi router (access point), to which I am not connected. I simply tried ping 192.168.0.1, but the answer was connect: network is unreachable. What can I do about that?
