Host server1
Hostname x1.example.com
HostKeyAlias server1
CheckHostIP no
Port 22001
User karl
Host server2
Hostname x2.example.com
HostKeyAlias server2
CheckHostIP no
Port 22002
User karl
下面的说明（来自 man ssh_config）
检查主机IP
如果此标志设置为 “是”，ssh(1) 将另外检查 known_hosts 中的主机 IP 地址 文件。 这允许 ssh 检测是否 由于 DNS 欺骗，主机密钥已更改。 如果该选项设置为“否”，则 检查将不会被执行。 这 默认为“是”。
Create a config file in your .ssh directory as follows:
Host server1
Hostname x1.example.com
HostKeyAlias server1
CheckHostIP no
Port 22001
User karl
Host server2
Hostname x2.example.com
HostKeyAlias server2
CheckHostIP no
Port 22002
User karl
Explanation Below (from man ssh_config)
CheckHostIP
If this flag is set to "yes", ssh(1) will additionally check the host IP address in the known_hosts file. This allows ssh to detect if a host key changed due to DNS spoofing. If the option is set to "no", the check will not be executed. The default is "yes".
HostKeyAlias
Specifies an alias that should be used instead of the real host name when looking up or saving the host key in the host key database files. This option is useful for tunneling SSH connections or for multiple servers running on a single host.
The Username and Port line avoids you having to give those options on the command line, too, so you can just use:
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评论（1）
我认为这会起作用：
在
.ssh目录中创建一个config文件，如下所示：下面的说明（来自
man ssh_config）Username和Port行也避免了您必须在命令行上提供这些选项，因此您可以使用：I think this will work:
Create a
configfile in your.sshdirectory as follows:Explanation Below (from
man ssh_config)The
UsernameandPortline avoids you having to give those options on the command line, too, so you can just use: