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@koara-localinリックソフト株式会社

[Windows][telnet] Windowsで特定アドレスの指定ポートの疎通確認を行う

Last updated at Posted at 2017-01-25

telnetで特定のポートの開放状態を確認する方法まとめ

実行方法

Windowsでは telnet で確認できる。
telnet 192.168.1.1 80 のように、telnet <ip adress> <port> と指定する。
Ctrl-C 等で終了する。

成功した場合
> telnet <ip adress> <port>
Trying <ip adress>...
Connected to <ip adress>.
失敗した場合
> telnet <ip adress> <port>
Trying <ip adress>...
telnet: Unable to connect to remote host: Attempt to connect timed out without establishing a connection

PowerShellで確認する方法

PowerShellでも確認できるらしい。

telnetコマンドのないWindowsでのTCPポート確認 - Qiita

関連

[Linux] sshの接続前に確認を行う(port番号を指定しての特定IPの疎通確認) - Qiita

参考

Tech TIPS：Windowsでポートのリッスン状態を調査する - ＠IT

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