UNIX for Beginners Questions & Answers

Dear Team,


I want to check multiple linux server to check port open.
eg. 192.168.1.12 80,192.168.1.12 443


Please provide script for that?

@pradeep1807

unix.com is not a script writing service.

You should write your script and post and then our members will help you.

However, you must do your own work.

Have you considered the nmap tool?

Or nc (netcat)?

you realy should have a lock on nmap



nmap -p 443 192.168.1.0/24

Hello Pradeep,
I have googled and found some python codes doing this task.
You might do the same but seems like unethical.

Kind regards
Boris

Unethical? Well, using those IP addresses, I would assume that this is an unroutable segment of your network (perhaps a private or management segment) rather than a public address. Using scanning tools such as have been mentioned on the public internet is probably unethical and might get your connection blocked by your service provider too. The tools can be used to look for weaknesses on the public internet so everyone is very wary of them and providers are quite hot on keeping their customers clean else other providers may block them out too.

Probing your own devices to see what ports are open, filtered or closed seems a valid thing to do, but don't go mad on it.




Kind regards,
Robin