I tired below bash script, but it is getting failed! Could you please help on this?
I have multiple CentOS VM's and want to verify couple of ports are opened/listing or not among all these servers.
Code: Select all
#vi server-list.txt
test-1-001.child.domain.com
test-2-001.child.domain.com
test-3-002.child.domain.com
test-4-003.child.domain.com
Code: Select all
# vi port_scan.sh
#!/bin/sh
for server in `server-list.txt`
do
#echo $i
nc -zvw3 $server 99
done
Code: Select all
Ncat: Version 7.50 ( https://nmap.org/ncat )
": Name or service not known. QUITTING.01.child.domain.com
Ncat: Version 7.50 ( https://nmap.org/ncat )
": Name or service not known. QUITTING.01.child.domain.com
Ncat: Version 7.50 ( https://nmap.org/ncat )
": Name or service not known. QUITTING.03.child.domain.com
Ncat: Version 7.50 ( https://nmap.org/ncat )
": Name or service not known. QUITTING.04.child.domain.com