How to use Shell to monitor the running status of iptables
This article mainly introduces "how to use Shell to monitor the running status of iptables". In the daily operation, I believe that many people have doubts about how to use Shell to monitor the running status of iptables. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts about "how to monitor the running status of iptables with Shell". Next, please follow the editor to study!
Recently, when I was debugging the iptables of the server, I did a time-off iptables by myself, but I seldom turned on the computer when I got home at night, so I couldn't start the iptables. Of course, you may say, why not cancel the time-off iptables? I can only say that the personal environment is different and the needs are different.
Content of the script:
The code is as follows:
Vi iptables-reset.sh
#! / bin/bash
Port= `IptabLes-vL | grep ssh | awk'{split ($NF,a, ":"); print a [2]}'| wc-l`
If [$port = 1]; then
Echo "ok!"
Else
/ etc/init.d/iptables start
Sleep 2
Port= `IptabLes-vL | grep ssh | awk'{split ($NF,a, ":"); print a [2]}'| wc-l`
If [$port = 1]; then
Echo "ok!"
Else
/ etc/init.d/iptables restart
Fi
Fi
Verify the figure:
You can first test in the virtual machine, and then put it on the server to execute, of course, if your server performance is good, you can also change to an endless loop to detect.
At this point, the study on "how to use Shell to monitor the running status of iptables" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!
