Usage of nc with timeouts in ms
I'm using nc in a Debian environment:
# dpkg -l | grep netcat
ii netcat-traditional 1.10-41+b1
# cat /etc/debian_version
9.4
Its help page describe the behavior of the -w flag:
-w secs timeout for connects and final net reads
So it seems it's accept seconds only (as integer).
I need to reduce this timeout because I have to poll a remote device twice per second:
echo -n read_input | nc -w 1 192.168.1.185 8800
this command is sent by an application. I can only set the console command to be executed.
Of course, with a timeout of 1 second I can barely poll the device about 1 time every two seconds (to avoid to open a new socket when the previous is not closed yet).
Do you confirm there's no way to achieve this?
For my own curiosity: why a network timeout should be in seconds?
debian netcat
asked 8 mins ago
Mark
1389
add a comment |
I'm using nc in a Debian environment:
# dpkg -l | grep netcat
ii netcat-traditional 1.10-41+b1
# cat /etc/debian_version
9.4
Its help page describe the behavior of the -w flag:
-w secs timeout for connects and final net reads
So it seems it's accept seconds only (as integer).
I need to reduce this timeout because I have to poll a remote device twice per second:
echo -n read_input | nc -w 1 192.168.1.185 8800
this command is sent by an application. I can only set the console command to be executed.
Of course, with a timeout of 1 second I can barely poll the device about 1 time every two seconds (to avoid to open a new socket when the previous is not closed yet).
Do you confirm there's no way to achieve this?
For my own curiosity: why a network timeout should be in seconds?
debian netcat
asked 8 mins ago
Mark
1389
add a comment |
I'm using nc in a Debian environment:
# dpkg -l | grep netcat
ii netcat-traditional 1.10-41+b1
# cat /etc/debian_version
9.4
Its help page describe the behavior of the -w flag:
-w secs timeout for connects and final net reads
So it seems it's accept seconds only (as integer).
I need to reduce this timeout because I have to poll a remote device twice per second:
echo -n read_input | nc -w 1 192.168.1.185 8800
this command is sent by an application. I can only set the console command to be executed.
Of course, with a timeout of 1 second I can barely poll the device about 1 time every two seconds (to avoid to open a new socket when the previous is not closed yet).
Do you confirm there's no way to achieve this?
For my own curiosity: why a network timeout should be in seconds?
debian netcat
asked 8 mins ago
Mark
1389
I'm using nc in a Debian environment:
# dpkg -l | grep netcat
ii netcat-traditional 1.10-41+b1
# cat /etc/debian_version
9.4
Its help page describe the behavior of the -w flag:
-w secs timeout for connects and final net reads
So it seems it's accept seconds only (as integer).
I need to reduce this timeout because I have to poll a remote device twice per second:
echo -n read_input | nc -w 1 192.168.1.185 8800
this command is sent by an application. I can only set the console command to be executed.
Of course, with a timeout of 1 second I can barely poll the device about 1 time every two seconds (to avoid to open a new socket when the previous is not closed yet).
Do you confirm there's no way to achieve this?
For my own curiosity: why a network timeout should be in seconds?
debian netcat
debian netcat
asked 8 mins ago
Mark
1389
asked 8 mins ago
Mark
1389
asked 8 mins ago
Mark
1389
asked 8 mins ago
Mark
1389
asked 8 mins ago
Mark
1389
1389
add a comment |
add a comment |
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