Bash
Bash 腳本 - 如何將輸出定向到 OpenVPN 中的多個輸入?
所以我正在嘗試編寫一個腳本來簡化連接到 OpenVPN 伺服器的過程。
所以當我寫:
openvpn --config vpnbook-pl226-udp53.ovpn
它提示我輸入使用者名和密碼:
Wed Apr 1 21:23:28 2020 OpenVPN 2.4.7 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Feb 20 2019 Wed Apr 1 21:23:28 2020 library versions: OpenSSL 1.1.1d 10 Sep 2019, LZO 2.10 Enter Auth Username: Enter Auth Password:
在這裡,我希望我的腳本自動將使用者名和密碼發送到 OpenVPN。
我進行了以下嘗試:
嘗試1:
{ echo "vpnbook"; echo "3vze4vd"; } | openvpn --config vpnbook-pl226-udp53.ovpn
嘗試2:
echo -e "vpnbook\n3vze4vd" | openvpn --config vpnbook-pl226-udp53.ovpn
嘗試 3:
(echo $username; echo $password;) | openvpn --config vpnbook-pl226-udp53.ovpn
但他們都沒有工作,我得到以下輸出:
Wed Apr 1 21:38:14 2020 OpenVPN 2.4.7 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Feb 20 2019 Wed Apr 1 21:38:14 2020 library versions: OpenSSL 1.1.1d 10 Sep 2019, LZO 2.10
然後什麼也沒有發生。
有人可以給我一個提示嗎?
您可以將使用者名和密碼添加到安全文件(只有所有者可以讀取)。
auth-user-pass
在您的 OpenVPN 文件中查找通行證以了解詳細資訊 (man openvpn
):cat > /path/to/secret <<'X' myusername verysecret X chmod u=rw,go= /path/to/secret
現在
auth-user-pass
在您的 OpenVPN 配置文件中找到該指令並像這樣擴展它auth-user-pass /path/to/secret
這看起來像是expect的工作。
出於展示的目的,我編寫了一個簡短的腳本來模擬您的 openvpn 命令的行為:
#! /usr/bin/env bash echo "Wed Apr 1 21:23:28 2020 OpenVPN 2.4.7 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4]" echo "[EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Feb 20 2019" echo "Wed Apr 1 21:23:28 2020 library versions: OpenSSL 1.1.1d 10 Sep 2019, LZO 2.10" read -r -p 'Enter Auth Username: ' USERNAME read -rs -p 'Enter Auth Password: ' PASSWORD echo echo "username was $USERNAME" echo "password was $PASSWORD"
這是響應這些提示的簡短期望腳本:
#! /usr/bin/env expect spawn ./fakevpn --config vpnbook-pl226-udp53.ovpn expect "Enter Auth Username: " { send Hello\r } # \r is the "return" character. expect "Enter Auth Password: " { send World\r } # It simulates hitting the Enter key. expect eof # This ensures expect won't exit until there's no more output.
這是輸出的樣子:
[gnubeard@mothership: ~/vpn]$ ./vpn_expect spawn ./fakevpn --config vpnbook-pl226-udp53.ovpn Wed Apr 1 21:23:28 2020 OpenVPN 2.4.7 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Feb 20 2019 Wed Apr 1 21:23:28 2020 library versions: OpenSSL 1.1.1d 10 Sep 2019, LZO 2.10 Enter Auth Username: Hello Enter Auth Password: username was Hello password was World
編輯:出於安全原因,roiama 的解決方案優於此解決方案。我會留下這個,以防它對試圖弄清楚如何自動化互動式命令的人有所幫助。