Interestingly enough, the -b option is only listed in the man page for some versions, but not others, of nc. I'm running both ubuntu and archlinux and have a different version on each (both are openBSD netcat though). I've tried -b on both and neither works. In the case where it's not listed in the man page, I get the expected "usage:..." response. In the one where it is listed in the man page I get "nc: Protocol not available". Both cases have been run from root...
I have not tried either the "traditional" netcat or the GNU netcat yet. I would be nice if someone out there actually knew if it worked and on what...
Or if someone could suggest a better way to do it...
---------- Post updated at 09:01 PM ---------- Previous update was at 04:42 PM ----------
never got nc to work and found many messages on the web regarding others who also couldn't get it to work. However, the following (from itsaunixsystem.com/unix/?p=5) does work as expected:
Can anyone offer any advice on how to modify the script below to work on a new system we have, that has no graphics capability? We admin the system through a serial RAS device. I've tried running the below script through the RAS and through an ssh -X session. It failed with something like "GTK... (3 Replies)
hello to all
i want to use multithreading to my UDP broadcast server client program. will anyone help me by proving C code. i am working in fedora. also my requirement is POSIX compliance.please help me..... (6 Replies)
hello to all
i want to use multithreading to my UDP broadcast server client program. will anyone help me by proving C code. i am working in fedora. also my requirement is POSIX compliance.please help me..... (0 Replies)
Hi,
as per title, please help me.. I use command wall host1 host2 hellowwwww
but it only receive in the host1..
how can I send this to all the clients.. I want this 1 server to send to all the clients.. or is there any program that I can use? I know this openfire, but seems complicated since... (5 Replies)
I use FreeBSD7.0, I want to use UDP broadcast,my code is following:
/*udpcli01.c*/
int
main(int argc, char **argv)
{
int sockfd;
struct sockaddr_in servaddr;
if (argc != 2)
err_quit("usage: udpcli <IPaddress>");
bzero(&servaddr, sizeof(servaddr));
servaddr.sin_family = AF_INET;... (2 Replies)
Hello:
NOOB here. I attempted to use smit mkcd. Failed on first attempt, not enough space. 2nd attempt tried to place iso on /usr, not enough space there. Cleanup ran for about 5 minutes after aborting. Now AIX won't boot. LCD display on 7029-6E3 says: 0517 MOUNT /USR. Attempted to boot from CD... (11 Replies)
I am looking to do a shell script that can send something simple via UDP from server 1 - to server 2
I want to be able to see on server 2 that I received everything expected..
ie.. I am looking at this to avoid using ping / traceroute to highlight network issues.. if a UDP packet gets lost... (1 Reply)
Hi,
Am very new to socket programming.
When we use UDP sockets to communicate between two processess,
will both the client/server socket be able to send/recv ?
meaning can sendto()/ recvfrom() be used on both server and client?
It could be useful even if anybody provide some link on socket... (1 Reply)
Hi,
If some one was to suggest, "increase your kernal tunables related to UDP, in particular the UDP send/recieve buffer size".... then what would they mean? :confused:
How can I find out what this current value is?
Thousand many thanks.
Neil (3 Replies)
Can anybody hellp me troubleshoot this error.
Using HP-Uxix B.10.X
" *****ARPA/9000 NETWORKING*****
Mon Jun 30 SAT 2003 20:18:12.xxxxxxx DISASTER Subsys: NS_LS_PROBE LOC:01001
Network NS_LS_PROBE DISASTER 1001, pid
arp: ether address is broadcast for IP address zzzzzzz! "
where... (1 Reply)
