In network programming, we often encounter the problem of being unable to connect to the target host. This can be caused by network misconfiguration, target host failure, or firewall settings. This article will provide some programming guidelines for solving this problem and provide corresponding source code examples.
- Check network connection status
In programming, first check the network connection status of the local computer. You can use the ping command in the socket library to test whether a connection can be established with the target host. Here is an example code written in Python:
import os
def check_connection(hostname):
response = os.system("ping -c 1 " + hostname)
if response == 0