"Linux"--freebsd to establish an SSH connection slow solution

In general, when writing Linux programs, use tools such as SECURECRT or Xshell to telnet to the Linux server. It has recently been found to be very slow when establishing an SSH connection, but it can be used normally after a successful connection. This is actually a problem with DNS. The company provides two DNS servers, one is new, the other is old now as backup. This is not the case when you find that the DNS server has been changed to a new one. The solution is as follows:

Vim/etc/resolv.conf

Then add the information: NameServer DNS Address

Final execution command:/etc/netstart Restart Network Service

"Linux"--freebsd to establish an SSH connection slow solution