LINUX VPN 設定

出自 NCUCCWiki
於 2021年6月3日 (四) 04:22 由 Center2 (對話 | 貢獻) 所做的修訂
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紅字的部分是須根據個人的帳號與密碼設定, 如test 帳號, 密碼:123456

Linux VPN Client 建置

一.參考網址 https://zh.codepre.com/how-to-6731.htmlhttps://kifarunix.com/configure-strongswan-vpn-client-on-ubuntu-18-04-centos-8/

二.對CentOS 8 環境失敗

三.使用Ubuntu Live Server 18.04.5 環境測試OK

四. 設定方式如下

1. Install strongSwan

apt update

apt install strongswan libcharon-extra-plugins

2. Install strongSwan VPN Server CA certificate on the Client

將vpn1.ncu.edu.tw 的chainXX.pem(/etc/letsencrypt/archive/vpn1.ncu.edu.tw 目錄下) , 更名成chain.pem , 放置到/etc/ipsec.d/cacerts/ 目錄下

3. Configure strongSwan VPN client

(1) vi /etc/ipsec.conf
  conn ipsec-ikev2-vpn-client
    auto=start
    right=vpn1.ncu.edu.tw
    rightid=vpn1.ncu.edu.tw
    rightsubnet=0.0.0.0/0
    rightauth=pubkey
    leftsourceip=%config
    leftid=test
    leftauth=eap-mschapv2
    eap_identity=%identity
(2)vi /etc/ipsec.secrets
 # This file holds shared secrets or RSA private keys for authentication.
 # RSA private key for this host, authenticating it to any other host
 # which knows the public part.
 # user id : EAP secret
 test : EAP "123456"
 # this file is managed with debconf and will contain the automatically created private key
 #include /var/lib/strongswan/ipsec.secrets.inc

4. 解決no issuer certificate found 'C=US , O="Let's Encrypt, CN=R3"憑證問題

 cp /etc/ssl/certs/DST_ROOT_X3.pem /etc/ipsec.d/cacerts/
 cp /etc/ssl/certs/ISRG_Root_X1.pem  etc/ipsec.d/cacerts/

5.啟動 strongswan

 systemctl start strongswan 
 ps:避免strongswan 在系統啟動時運行systemctl disable strongswan

6.查看狀況

 systemctl status strongswan