How to check if a port is open for remote system
nmap or netcat, both of which are available for Windows, Linux
For example, check for telnet on a known ip:
nmap -A IP-address -p 23
For example, look for open ports from 4900-4910 on host.example.com:
nc -z host.example.com 4900-4910
nmap or netcat, both of which are available for Windows, Linux
For example, check for telnet on a known ip:
nmap -A IP-address -p 23
For example, look for open ports from 4900-4910 on host.example.com:
nc -z host.example.com 4900-4910