Unix Port Monitoring Script

Shell Programming and Scripting
1

Is there a script which monitors a specific port and tells whethers its listening
basically i am looking for a script which we can hardcode the port number there and hardcode an email address. It should alert to the email if the port is down.
any idea.?plz

2

You could script something up yourself (with nmap, or even attempting to telnet to a port).

Or, try this: Zazzy Gambling News 2021 – Internet Casino Bulletin

Cheers,
ZB

3

you are looking for it or have you tried doing it yourself?
if you have lsof, you can just check for that port

lsof -i tcp:22

if it returns results, then its listening..

4

yes i did use lsof..but its a command ..i was looking for script and lets see i can use the solution mentioned by zazzybob

5

what's wrong with using the command inside a script? its just a simple as something like this.

#!/bin/sh
var=$(lsof -i tcp:22)
if [ ! -z "$var" ];then echo "found"; fi

fine tune it, schedule a cron job for it and off you go.
try to write scripts yourself instead of searching for a ready made script that fit exactly to your needs. most of the time, you won't find it.

6

thanks ghostdog..
i am a newbie into unix..i am learning it...but am not a programmer basically..so its kinda painstaking to learn about unix programming