TCP trashing data on application close Post: 302455790

10 More Discussions You Might Find Interesting

1. IP Networking

secondary TCP application

:cool: I want to use 2 tcp applications in SCO 5.05 senerio I am using VisionFS 3.1 and I need to set it up as a secondary tcp app. I follow the profeditoir and change the tcp port from the primary port (139) to any other number below port 1024 and then restart the VisionFS server it is still...

2. UNIX for Dummies Questions & Answers

Which application has a TCP socket open

If I do a netstat -a I can see all the sockets currently open, is there a way that I can tell which application is holding open these sockets ?

3. UNIX for Dummies Questions & Answers

close tcp port

Hello, I have a service running (ODBC) and every now and then it will hang and I will have to stop and restart the service. The problem is when I stop the service, it indeed stops the service, but netstat reports a tcp port still open with the fin_wait_2 status. Then I must close the client...

4. Programming

problem receiving data from TCP socket

Hi all, I'm writing a socket program which sends a structure from one machine to another. When I run my client first time it runs well, however after the first time I couldn't receive all the data inside the structure (it is like, half of the array is received and the other half is not set). I...

5. Programming

close existing tcp connection in C

Hello. I would like to know how to close an existing tcp socket. I have read some stuff and learned how to create a socket and then close it but have not found anything about how to close an existing tcp socket created by another application. The situation is this: I have an ODBC server running and...

6. Solaris

many tcp connection in close-wait

Hi, I use solaris Unix . I find there is some problem in application and it generate many "close-wait" tcp connect and stay in the server . it is generate by process id 7740 root@XX # netstat -an | grep CLOSE_WAIT | wc -l 285 root@XX # netstat -an | grep CLOSE_WAIT 10.158.35.4.34805 ...

7. Programming

when parent process close, how to close the child?

can someone provide an example, where if the parent process quits for any reason, then the child process will also close?

8. IP Networking

Packetize data to send it over tcp sockets

Hello All, I am very new to socket programming and client server architecture. I have to write a client which will send some data to server and server will display it on its console. I am ready with both client and server but my problem is with packetizing of data -- I have...

9. Shell Programming and Scripting

Want to backup dirs on application start and close.

Hi I want to write a script that will back up one directory if a certain application launches and then backs up another directory if that same application is closed down. NFI where to start. It seems like cron isn't the tool for this because that is time based. I'm thinking I need...

10. UNIX for Advanced & Expert Users

30 tcp connections Established for a while and after a few minutes are close

Good morning, I need your help please After Restarting Aps or connection, these are connections tcp 0 0 10.80.1.26.57597 10.81.248.79.53008 ESTABLISHED tcp 0 47 10.80.1.26.57607 10.81.248.79.53008 ESTABLISHED tcp 0 0 ...

LEARN ABOUT OPENSOLARIS

listen

listen(3SOCKET) 					     Sockets Library Functions						   listen(3SOCKET)

NAME

       listen - listen for connections on a socket

SYNOPSIS

       cc [ flag ... ] file ... -lsocket  -lnsl  [ library ... ]
       #include <sys/types.h>
       #include <sys/socket.h>

       int listen(int s, int backlog);

DESCRIPTION

       To  accept  connections, a socket is first created with	socket(3SOCKET), a backlog for incoming connections is specified with listen() and
       then the connections are accepted with  accept(3SOCKET). The listen() call applies only to sockets of type SOCK_STREAM or SOCK_SEQPACKET.

       The backlog parameter defines the maximum length the queue of pending connections may grow to.

       If a connection request arrives with the queue full, the client will receive an error with an indication of ECONNREFUSED for  AF_UNIX sock-
       ets.  If  the  underlying protocol supports retransmission,  the connection request may be ignored so that retries may succeed. For AF_INET
       and AF_INET6sockets, the TCP will retry the connection. If the  backlog is not cleared by the time the tcp times out, the connect will fail
       with ETIMEDOUT.

RETURN VALUES

       A 0 return value indicates success; -1 indicates an error.

ERRORS

       The call fails if:

       EBADF	     The argument s is not a valid file descriptor.

       ENOTSOCK      The argument s is not a socket.

       EOPNOTSUPP    The socket is not of a type that supports the operation listen().

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       accept(3SOCKET), connect(3SOCKET), socket(3SOCKET), attributes(5), socket.h(3HEAD)

NOTES

       There is currently no backlog limit.

SunOS 5.11							    8 Nov 1999							   listen(3SOCKET)