sockets and file open number

I think you know that you need root privileges to increase limits over hard limit.....
Then paste here the output of 'cat /proc/sys/fs/file-nr' if you need help, but you could know it, maybe ;)

i have root privileges
the output is
'cat /proc/sys/fs/file-nr'
6176 0 204386

Regards

Your system can handle a maximum of 204386 opened file descriptors, but every process can only open a smaller number of FD... with ulimit you're telling to increase the soft limit, but the hard limit blocks you.

Edit /etc/security/limits.conf adding at the end the following line:
<username> hard nofile <value>, change <username> and <value> with your own values then reboot :)

well thats hard coded 2048 in the ulimits entry
the connection passed the number 1028
the system crashed totally at 1094 connection
with message "Bad file descriptor"

Regards

The message provided, "Bad file descriptor", is quite general... it could be related to a series of problems. What's the last instruction executed by your application? Is it the accept one, or select/poll or anything else?

it came from the Select() function

if(select(this->fdmax+1,&read_fds,null.null.null)==-1)
 {
    perror("select error:");
   exit(1); ------> this is what caused the system to exit. i think it did not crash
 }

You have the same problem if you use 'poll'?

hello
i tries the poll method and it wasnt all good
i got it now runing using the epoll method

thanks
Regards