Linux TCP/IP Socket Programming

Question

I have developed Linux socket server connection which is working fine.

When start from terminal it start from listening from client. but when I close terminal it stops listening.

I need to continue even though the terminal closed by user from started.

how can I run server socket application in Linux as background process?

am run using ./a.out 8888(portno)

again i will connect error will come (connection refused)

now what do i?

Thank You.

Carlos Landeras · Accepted Answer · 2012-11-22 08:47:47Z

2

On terminal execute the script ending with &.

A task can usually be started and run as a background task by putting a '&' at the end of the command line.

Check this:

Linux Background Job

answered Nov 22, 2012 at 8:47

Carlos Landeras

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5 Comments

user1844030 Over a year ago

yes but run in first time only. after that error in connection for connection refused .

Carlos Landeras Over a year ago

You have to control your program to keep exceptions and keep always running, with & your program will run in background but you have to keep it alive.

user1844030 Over a year ago

background process is alive the problem is port number connection refused

Carlos Landeras Over a year ago

Ok, but this is a programming issue, the question was about running processes on background so you can close the terminal. Check that that port is not being used by other application and check the socket is starting properly. Which language did you used to program this script

M.S. Over a year ago

You need to set socket option SO_REUSEADDR. When your program exists abnormally socket goes into time_wait state and it will be there for couple of minutes. If you try to bind same port again you will get error in bind.

Martin R · Accepted Answer · 2012-11-22 12:35:36Z

0

You can use nohup to keep the program running if the Terminal is closed:

nohup ./a.out 8888 &

(Standard output/error will be written to nohup.out instead of the Terminal.)

answered Nov 22, 2012 at 12:35

Martin R

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