We're having problems getting disconnected from AIX with our telnet sessions.
I can't ping the server when this happens, either. Other serves can be pinged at the same time.
This happens both at unix and within the database. Database locks remain when editing files. unix logins remain after... (0 Replies)
I have intermec handheld device which is connecting to AIX Server on port 12431 or whatever. ( oracle application )
The handheld device connects for few seconds and then disconnects from the AIX server. Once it disconnects the handheld device automatically switches off.
Are there any... (2 Replies)
i am using Putty to do ssh to all the unix nodes that we have in our work environment. it is very strange that all my network connections will timeout quickly in 10 mins, it can either be a putty connection, sqlplus or toad. is there some setting that can help to prevent this. please let me know... (3 Replies)
Hi,
I want to code TCP/IP client/server in linux application capable to fastly detect ethernet cable disconnection in any condition.
So I have activate SO_KEEPALIVE options and set TCP_KEEPCNT, TCP_KEEPIDLE and TCP_KEEPINTVL to 1.
When I disconnect ethernet cable I have the following... (5 Replies)
Hello,
I am able to establish a connection, and transfer data. Occasionally the receiving client will block in read(2) and stay that way until it is killed.
initial:
server: netstat -aveeopT
tcp 0 0 *:17398 *:* LISTEN server-user... (8 Replies)
Hello!
I searched forum for similar topic, with no luck, if you know one, delete this topic, and send me private message with link please.
Little background:
I have a lot of clients and one serwer. Client can make multiple connections on different ports and ips, but only one can be acctive... (2 Replies)
Hi , My redhat 5 frequently disconnects from network. Once rebooted , network is working for one day or two. After that the NIC suddently stops working. Even if i give "#service network restart" or ifup eth0 commands it won't come up. I even tried reconfigure the network card. but no use. Only... (6 Replies)
I have problem with oracle solaris 10 running on oracle sparc T4-2 server.
Os information: 5.10 Generic_150400-03 sun4v sparc sun4v
Output from tcpstat.d script
TCP bytes: out outRetrans in inDup inUnorder
6833763 7300 98884 0... (2 Replies)
Is there a way to have persistent terminal windows to redhat server across viewer disconnects? I can do that with the help of an extra MS Windows server and rdp, but is there a way of doing that without the Windows server?
Here's the scenario. I have multiple redhat servers (VMs) which have no... (3 Replies)
I have inherited and SCO OpenServer Release 6 server. The clients connect using telnet to get to a proprietary database application for Service tickets. The issue I am currently having is that the connection just stops abruptly and you can see "telnet session terminated" on the terminal emulation... (22 Replies)
Discussion started by: sean6605
22 Replies
LEARN ABOUT BSD
udp
UDP(4P)UDP(4P)NAME
udp - Internet User Datagram Protocol
SYNOPSIS
#include <sys/socket.h>
#include <netinet/in.h>
s = socket(AF_INET, SOCK_DGRAM, 0);
DESCRIPTION
UDP is a simple, unreliable datagram protocol which is used to support the SOCK_DGRAM abstraction for the Internet protocol family. UDP
sockets are connectionless, and are normally used with the sendto and recvfrom calls, though the connect(2) call may also be used to fix
the destination for future packets (in which case the recv(2) or read(2) and send(2) or write(2) system calls may be used).
UDP address formats are identical to those used by TCP. In particular UDP provides a port identifier in addition to the normal Internet
address format. Note that the UDP port space is separate from the TCP port space (i.e. a UDP port may not be "connected" to a TCP port).
In addition broadcast packets may be sent (assuming the underlying network supports this) by using a reserved "broadcast address"; this
address is network interface dependent.
Options at the IP transport level may be used with UDP; see ip(4P).
DIAGNOSTICS
A socket operation may fail with one of the following errors returned:
[EISCONN] when trying to establish a connection on a socket which already has one, or when trying to send a datagram with the destina-
tion address specified and the socket is already connected;
[ENOTCONN] when trying to send a datagram, but no destination address is specified, and the socket hasn't been connected;
[ENOBUFS] when the system runs out of memory for an internal data structure;
[EADDRINUSE] when an attempt is made to create a socket with a port which has already been allocated;
[EADDRNOTAVAIL]
when an attempt is made to create a socket with a network address for which no network interface exists.
SEE ALSO getsockopt(2), recv(2), send(2), socket(2), intro(4N), inet(4F), ip(4P)4.2 Berkeley Distribution May 16, 1986 UDP(4P)