命令
telnet
描述
user interface to the TELNET protocol
TELNET协议工具,用于远程登录
用法
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| telnet [-4] [-6] [-8] [-E] [-L] [-S tos] [-a] [-c] [-d] [-e char] [-l user] [-n tracefile] [-b hostalias ] [-r] [host-name [port]]
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选项
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| Options: -4 使用IPv4地址 -6 使用IPv6地址 -E 阻止任何字符被识别为转义字符 -d 开启debug -K 不自动登录到远程系统 -l 指定用户名 -a 尝试自动登录 -e 指定转移字符 -n 打开tracefile以记录跟踪信息 -x 加密数据
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注意
注意telnet数据是明文传输的,推荐仅用于连接测试,建议远程连接使用ssh工具
示例
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| $ telnet 192.168.31.80 80 Trying 192.168.31.80... Connected to 192.168.31.80. Escape character is '^]'. ^CConnection closed by foreign host.
$ telnet 192.168.31.80 8088 Trying 192.168.31.80... telnet: connect to address 192.168.31.80: Connection refused
$ telnet www.baidu.com 80 Trying 110.242.68.4... Connected to www.baidu.com. Escape character is '^]'. HTTP/1.1 400 Bad Request Connection closed by foreign host.
$ telnet www.baidu.com 8088 Trying 110.242.68.3... telnet: connect to address 110.242.68.3: Connection timed out Trying 110.242.68.4... telnet: connect to address 110.242.68.4: Connection timed out
$ telnet 127.0.0.1 22 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'. SSH-2.0-OpenSSH_7.4
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