05-17-2006
Here...
Can you specify the question please as there are standard and ephemeral ports on client and server? Which one you have in mind the port for default incoming/outgoing connection or a port for an actual connection?
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Just starting to work with unix, wondering if there is any good on-line documentation explaining TCP/UDP ports, how to use them, etc...
Thanks.... (1 Reply)
Discussion started by: eugene_mayo
1 Replies
2. IP Networking
Just wondering if anyone knows of any good on-line documentation on TCP/UDP Ports. Basically i want to know how to check if they are in use, learn how to close them, etc...
Thanks... (5 Replies)
Discussion started by: eugene_mayo
5 Replies
3. UNIX for Advanced & Expert Users
3600 tcp/udp, trap-daemon, text relay-answer
Does anyone know what this service is responsible for, or how significant it is?
Thanks.....James (1 Reply)
Discussion started by: cassj
1 Replies
4. UNIX for Dummies Questions & Answers
Hi,
My network dep. telles me that they have opened the FW but my application still can not get through to other server. If it was TCP I could simply test it myself with "telnet", but how can I check it when the connection is UDP?
Tnx (1 Reply)
Discussion started by: mehrdad68
1 Replies
5. UNIX for Advanced & Expert Users
I use forwarders for a subzone, but TCP 53 is blocked, So does forwarders really need TCP?
If forwaders use UDP, I can't get following scenario to work:
main zone is master, but subzone is forwad. Is it possible?
(On name sever itself, resolution of xx.stub.abc.com worked fine.)
#sub zone... (2 Replies)
Discussion started by: honglus
2 Replies
6. Infrastructure Monitoring
hi guys
My linux server have SNMP configure port by default is 161 (UDP)
now my monitor team - who are using Nagios - say the server are not being monitor
so check netstat -lnu and I see all is OK and snmp service is running fine
what else should I check about this port 161? to see if it is... (0 Replies)
Discussion started by: karlochacon
0 Replies
7. AIX
May I know what is the TCP/UCP port range for any default AIX NFS? Based on rpcinfo -p, I got the following output:
program vers proto port service
100000 4 udp 111 portmapper
100000 3 udp 111 portmapper
100000 2 udp 111 portmapper
100000 4 ... (4 Replies)
Discussion started by: famasutika
4 Replies
8. Programming
Hi.
I am writing client - server application using TCP sockets.
I need some very basic functionality, namely: how to check if another "participant" of the connection is still present?
I want to handle situations, when client is gone, or server breaks down, etc. (25 Replies)
Discussion started by: Shang
25 Replies
9. Shell Programming and Scripting
We have open port UDP port 31011, how to verify if port were working or traffic were receive. (2 Replies)
Discussion started by: avtalan
2 Replies
10. IP Networking
i want to kill a tcp connection by killing its pid
with netstat -an i got the tcp ip connection on port 5914
but when i type ps -a or ps-e there is not such process running on port 5914
is it possible that because i do not log on with proper user account i can not see that process running? (30 Replies)
Discussion started by: alinamadchian
30 Replies
LEARN ABOUT SUNOS
in.discardd
in.discardd(1M) System Administration Commands in.discardd(1M)
NAME
in.discardd - UDP or TCP discard protocol service
SYNOPSIS
in.discardd
FMRI
svc:/internet/discard:default
DESCRIPTION
FMRI stands for Fault Management Resource Identifier. It is used to identify resources managed by the Fault Manager. See fmd(1M) and
smf(5).
The in.discardd service provides the server-side of the discard protocol. This protocol is used for debugging and bandwidth measurement and
is available on both TCP and UDP transports through port 9.
The in.discardd service is an inetd(1M) smf(5) delegated service. The in.discardd detects which transport is requested by examining the
socket it is passed by the inetd daemon.
The discard service simply throws away any data it receives from the client.
TCP-based service
Once a connection is established, the in.discardd discards any data received. No response is generated. The connection remains open
until the client terminates it.
UDP-based service
The in.discardd listens for UDP datagrams. When a datagram is received, the server discards it. No response is sent.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcnsu |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
SEE ALSO
inetd(1M), attributes(5), smf(5)
RFC 863
SunOS 5.10 23 Aug 2004 in.discardd(1M)