10-01-2001
The ESTABLISHED sockets have a process at each end and they are communicating. Eventually the processes will invoke close(2) or shutdown(2) on the sockets and they will go away. You could also kill the processes and the exit(2) system call will close them.
When a socket completely closes, it will enter TIME_WAIT for awhile before it disappears. In your case you have two processes talking on the same host. Usually there would be two different hosts with a network connecting them. It is possible for packets to have been lost in transit. Such packets could arrive late, even after the socket has closed. If a packet arrives for a socket in TIME_WAIT, it is discarded. If you somehow discarded a socket in TIME_WAIT, you lose that protection. The socket could be reused and it will freak when any lost packets from the previous connection arrive. TIME_WAIT sockets should not last very long.
10 More Discussions You Might Find Interesting
1. IP Networking
Hi
what is the command to see the process name/application name
along with the port number, connection status ...
netstat is not giving process/application name
Is there any way to know which application is holding which port?
Thanks in advance (3 Replies)
Discussion started by: axes
3 Replies
2. UNIX for Advanced & Expert Users
Hi..,
Now, I am reading about the netstat command and its implementation. I have doubts in some options and its functionalities,
natstat - M (Which is described as display masqueraded connections), what it means?
What is Forwarding Information Base.?(--fib)
Thanks in advance,... (3 Replies)
Discussion started by: nagalenoj
3 Replies
3. BSD
For FreeBSD I use this command to determine what ports are listenning
netstat -an | grep LISTEN
is there another way, perhaps another command? (2 Replies)
Discussion started by: edgarvm
2 Replies
4. IP Networking
I can't tell what the output of the netstat command means. Is there anywhere that has this information? I tried the man pages, but they weren't helpful. (3 Replies)
Discussion started by: Ultrix
3 Replies
5. Solaris
Greetings to all,
Here is a line of output from my netstat command
cbp031.904 wdcprodhome.nfsd 98304 0 49640 0 ESTABLISHED
The only thing i recognize is the unix machine "cbp031" but what is .904 and all the other data telling me?
Thanks in advance. (3 Replies)
Discussion started by: Harleyrci
3 Replies
6. Shell Programming and Scripting
Hi,
In my project we use sftp with batch mode (password less) script in parallel for 14 sessions which connects to 2 different servers alternatively i.e. 7 connects to one server say server1 and the other 7 connects to say server 2.
Now the problem is that these 14 sessions are run in... (5 Replies)
Discussion started by: dips_ag
5 Replies
7. UNIX for Advanced & Expert Users
Hi,
I want to list the time for how long a secure connections last to my server/blade. i am using netstat command to get the same, but not sure how to get the time for how long connections is being ESTABLISHED.
netstat -na | grep 'ESTABLISHED' | grep :443 |awk '{print $4}' | cut -d: -f1 |... (1 Reply)
Discussion started by: Siddheshk
1 Replies
8. UNIX for Dummies Questions & Answers
Do I have this command correct to show all current connections/sessions my Solaris box has? It does not seem to do anything.
netstat -an | grep EST (6 Replies)
Discussion started by: SIFT3R
6 Replies
9. Red Hat
Hi
Can any body tell me about TIME_WAIT status meaning in the following command output.
# netstat -anp|grep 5000
tcp 0 0 127.0.0.1:50006 0.0.0.0:* LISTEN 5058/ccsd
tcp 0 0 0.0.0.0:50008 0.0.0.0:* ... (3 Replies)
Discussion started by: mastansaheb
3 Replies
10. OS X (Apple)
When running netstat -i from the Command Terminal,
It returns with 21 different connections..
The addresses all look like this:
::1
fe80:1::1
10:dd:b1:a5:c4:ba
with Network names like
Linke#2
fe80::8e2d
How can I delve deeper into this to clarify what is going on with my network?... (0 Replies)
Discussion started by: dwfiedler
0 Replies
LEARN ABOUT OPENSOLARIS
mlib_imagecolorhsv2rgb
mlib_ImageColorHSV2RGB(3MLIB) mediaLib Library Functions mlib_ImageColorHSV2RGB(3MLIB)
NAME
mlib_ImageColorHSV2RGB - HSV to RGB color conversion
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_ImageColorHSV2RGB(mlib_image *dst, const mlib_image *src);
DESCRIPTION
The mlib_ImageColorHSV2RGB() function performs a conversion from hue/saturation/value to red/green/blue. The source and destination images
must be three-channel images.
It uses the following equations:
P = V*(1 - S)
Q = V*(1 - S*fraction(H*6))
T = V*(1 - S*(1 - fraction(H*6)))
R, G, B = V, T, P if 0 <= H < 1/6
R, G, B = Q, V, P if 1/6 <= H < 2/6
R, G, B = P, V, T if 2/6 <= H < 3/6
R, G, B = P, Q, V if 3/6 <= H < 4/6
R, G, B = T, P, V if 4/6 <= H < 5/6
R, G, B = V, P, Q if 5/6 <= H < 1
where 0 <= H < 1 and 0 <= S, V, P, Q, T, R, G, B <= 1.
Assuming a pixel in the source image is (h, s, v) and its corresponding pixel in the destination image is (r, g, b), then for MLIB_BYTE
images, the following applies:
H = h/256
S = s/255
V = v/255
r = R*255
g = G*255
b = B*255
for MLIB_SHORT images, the following applies:
H = (h + 32768)/65536
S = (s + 32768)/65535
V = (v + 32768)/65535
r = R*65535 - 32768
g = G*65535 - 32768
b = B*65535 - 32768
for MLIB_USHORT images, the following applies:
H = h/65536
S = s/65535
V = v/65535
r = R*65535
g = G*65535
b = B*65535
and for MLIB_INT images, the following applies:
H = (h + 2147483648)/4294967296
S = (s + 2147483648)/4294967295
V = (v + 2147483648)/4294967295
r = R*4294967295 - 2147483648
g = G*4294967295 - 2147483648
b = B*4294967295 - 2147483648
PARAMETERS
The function takes the following arguments:
dst Pointer to destination image.
src Pointer to source image.
RETURN VALUES
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Committed |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
mlib_ImageColorHSV2RGB_Fp(3MLIB), mlib_ImageColorRGB2HSV(3MLIB), mlib_ImageColorRGB2HSV_Fp(3MLIB), attributes(5)
SunOS 5.11 12 Sep 2007 mlib_ImageColorHSV2RGB(3MLIB)