Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

tcp(3head) [x11r4 man page]

tcp.h(3HEAD)                                                          Headers                                                         tcp.h(3HEAD)

NAME
tcp.h, tcp - definitions for the Internet Transmission Control Protocol (TCP) SYNOPSIS
#include <netinet/tcp.h> DESCRIPTION
The <netinet/tcp.h> header defines the following macro for use as a socket option at the IPPROTO_TCP level: TCP_NODELAY Avoid coalescing of small segments. The macro is defined in the header. The implementation need not allow the value of the option to be set with setsockopt() or retrieved with getsockopt(). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ SEE ALSO
getsockopt(3XNET), socket.h(3HEAD), attributes(5), standards(5) SunOS 5.10 10 Sep 2004 tcp.h(3HEAD)

Check Out this Related Man Page

tcp.h(3HEAD)                                                          Headers                                                         tcp.h(3HEAD)

NAME
tcp.h, tcp - definitions for the Internet Transmission Control Protocol (TCP) SYNOPSIS
#include <netinet/tcp.h> DESCRIPTION
The <netinet/tcp.h> header defines the following macro for use as a socket option at the IPPROTO_TCP level: TCP_NODELAY Avoid coalescing of small segments. The macro is defined in the header. The implementation need not allow the value of the option to be set with setsockopt() or retrieved with getsockopt(). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ SEE ALSO
getsockopt(3XNET), socket.h(3HEAD), attributes(5), standards(5) SunOS 5.10 10 Sep 2004 tcp.h(3HEAD)
Man Page

15 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

nmap results

Hi, Whenever I tried to run nmap on my linux (red hat 6.2) boxes i got these outputs: 4444/tcp filtered krb524 6666/tcp filtered irc-serv 6699/tcp filtered napster 8888/tcp filtered sun-answerbook Can anybody please... (10 Replies)
Discussion started by: necro
10 Replies

2. IP Networking

WinXP and TCP/IP Problem

Hi Eveyone, I have A small problems maybe some one can help me. I'm running a small network at home with internet access. Two PC's have Win XP and one has Win98se. I have them all hook up on a SMC router. ALL windows firewall are off and and harddrive sharing is on. I am using DCHP network... (3 Replies)
Discussion started by: Peterh
3 Replies

3. Programming

tcp server listening, client connecting problems

hello everyone. I tried searching for something related to this, but I figured it was time to ask my own question. I am experiencing these problems using Ubuntu 7.04 I am starting up a TCP listener/server and once connected, will act as a communication/control link with a program on another... (3 Replies)
Discussion started by: pjwhite
3 Replies

4. Shell Programming and Scripting

String substitution

Hi, I have a properties file (myprop.properties) which contains some values: @oneValue@==tcp://localhost:1234 @twoValue@==tcp://localhost:4563 @threeValue@==tcp://localhost7895 I have a xml file (myXmlFile.xml)which contains some tokens: <application name="aTest"> <NameValuePair> ... (3 Replies)
Discussion started by: ctrl-alt-del
3 Replies

5. UNIX for Advanced & Expert Users

Any idea what this counter means "tcpTimRetrans"

I am chasing an issue where I see drop packets, in order to dig the problem further I issue netstat -s -P tcp command which shows me the stats from the tcp perspective. In that stats I see a counter which is "tcpTimRetrans" which increments along with "tcpRetransSegs". When both of these counter... (3 Replies)
Discussion started by: purechgo
3 Replies

6. Red Hat

tcp/ip problem

how the data from disk is loaded into memory and then it transfered to tcp/ip packet. how i can find how many pages are loaded into memory by that process what is the rate of context switch for that process. (5 Replies)
Discussion started by: amar20
5 Replies

7. Shell Programming and Scripting

how to extract info from a file using awk

Dear all I have a file call interfaces.txt Filename: interfaces.txt How can I extract the information at below? ABC_DB_001 hostname1 20901 ABC_DB_002 hostname2 20903 ABC_DB_003 hostname3 20905 Currently I am using a very stupid method grep ^ABC interfaces.txt > name.txt grep... (3 Replies)
Discussion started by: on9west
3 Replies

8. 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 Replies)
Discussion started by: raidzero
6 Replies

9. Red Hat

To change of port name in nmap

Hi, Is it possible to change the nmap port name: For eg: 21/tcp open ftp 53/tcp open domain 80/tcp open http 111/tcp open rpcbind 836/tcp open unknown 843/tcp open unknown 953/tcp open rndc I need to change the port number 836 unknown to the name of the... (4 Replies)
Discussion started by: gsiva
4 Replies

10. Programming

can-not detect TCP disconnects well

Hello everyone. Thanks for reading. I am using Ubuntu 7.04 to experience this problem: I have written my own programs that communicate to eachother and I am having a hard time detecting a TCP socket disconnect when the remote side's computer has a power-failure (for example). On the computer... (6 Replies)
Discussion started by: pjwhite
6 Replies

11. Shell Programming and Scripting

awk or sed help urgent

Hello, I have a file with the follwoing pattern: Input file: =========== tcp://xxx:123 8179 YY 1798 YY tcp://abc:2345 not found tcp://swt:4945 7356 QQ tcp://pqr:456 8178 PP 9485 PP 4485 PP (8 Replies)
Discussion started by: uandme2k2
8 Replies

12. Programming

POSIX Socket Programming Header Files

I can see a number of header files in the POSIX standard related to TCP/IP based socket programming: arpa/inet.h net/if.h netdb.h netinet/in.h netinet/tcp.h sys/socket.h Except for socket.h, I am a little confused what's the purpose of so many header files and when to include which.... (3 Replies)
Discussion started by: jaywalker
3 Replies

13. Shell Programming and Scripting

awk help

Hi I have the following file PORT STATE SERVICE 21/tcp closed ftp 22/tcp open ssh 23/tcp closed telnet 80/tcp closed http 90/tcp closed dnsix 95/tcp closed supdup 100/tcp closed newacct 162/tcp closed snmptrap 205/tcp closed at-5 335/tcp closed unknown... (7 Replies)
Discussion started by: dbashyam
7 Replies

14. Emergency UNIX and Linux Support

Port flow capture

I am trying to get an output using the command tcpdump -w /tmp/syn.pcap 'tcp & (tcp-syn) != 0' But I am getting the error: tcpdump: no suitable device found Is there an alternate command to achieve this? (4 Replies)
Discussion started by: ggayathri
4 Replies

15. SuSE

Tcp waits

Hi Guys I am running an Oracle database and most of my sessions are waiting for tcp. Now, how do I check if tcp from the O/S level is servicing requests properly? Please Help!!! Thanks in advance... (4 Replies)
Discussion started by: Phuti
4 Replies