Openvpn
OpenVPN TCP 443
我在我的 Ubuntu 16.04.3 上執行 OpenVPN Server 版本 2.4.4。VPN 連接在 UDP 1194 上工作得非常好,但是當我嘗試更改為 TCP 443 時,它就無法連接。我使用的是 apache2,在使用命令進行測試之前我將其關閉
service apache2 stop
。ufw tcp 443 是允許的,但即使我關閉防火牆,它也不會連接。(也在 Windows 客戶端上)這是我的伺服器配置:
port 443 proto tcp ;proto udp dev tun ca ca.crt cert server.crt key server.key dh dh2048.pem server 10.8.0.0 255.255.255.0 ifconfig-pool-persist ipp.txt push "redirect-gateway def1 bypass-dhcp" push "dhcp-option DNS 213.133.98.98" push "dhcp-option DNS 213.133.99.99" push "dhcp-option DNS 213.133.100.100" keepalive 10 120 tls-auth ta.key 0 key-direction 0 cipher AES-256-CBC tls-cipher TLS-ECDHE-RSA-WITH-AES-256-GCM-SHA384 auth SHA512 max-clients 2 user nobody group nogroup persist-key persist-tun status openvpn-status.log verb 3 explicit-exit-notify 1 tls-version-min 1.2 reneg-sec 60 remote-cert-tls client
我的客戶端配置:
client dev tun proto tcp ;proto udp remote *super secret IP* 443 resolv-retry infinite nobind persist-key persist-tun remote-cert-tls server tls-auth ta.key 1 cipher AES-256-CBC tls-cipher TLS-ECDHE-RSA-WITH-AES-256-GCM-SHA384 auth SHA512 key-direction 1 auth-nocache reneg-sec 60 verb 3
客戶端日誌:
Fri Nov 10 13:35:05 2017 SIGUSR1[soft,connection-reset] received, process restarting Fri Nov 10 13:35:05 2017 MANAGEMENT: >STATE:1510317305,RECONNECTING,connection-reset,,,,, Fri Nov 10 13:35:05 2017 Restart pause, 5 second(s) Fri Nov 10 13:35:10 2017 TCP/UDP: Preserving recently used remote address: [AF_INET]*super secret IP*:443 Fri Nov 10 13:35:10 2017 Socket Buffers: R=[65536->65536] S=[65536->65536] Fri Nov 10 13:35:10 2017 Attempting to establish TCP connection with [AF_INET]*super secret IP*:443 [nonblock] Fri Nov 10 13:35:10 2017 MANAGEMENT: >STATE:1510317310,TCP_CONNECT,,,,,, Fri Nov 10 13:35:11 2017 TCP connection established with [AF_INET]*super secret IP*:443 Fri Nov 10 13:35:11 2017 TCP_CLIENT link local: (not bound) Fri Nov 10 13:35:11 2017 TCP_CLIENT link remote: [AF_INET]*super secret IP*:443 Fri Nov 10 13:35:11 2017 MANAGEMENT: >STATE:1510317311,WAIT,,,,,, Fri Nov 10 13:35:11 2017 Connection reset, restarting [0]
伺服器日誌:
Nov 12 18:22:22 ubuntu systemd[1]: Starting OpenVPN connection to server... Nov 12 18:22:22 ubuntu systemd[1]: Starting OpenVPN service... Nov 12 18:22:22 ubuntu systemd[1]: Started OpenVPN service. Nov 12 18:22:22 ubuntu systemd[1]: Failed to start OpenVPN connection to server.
ip addr show tun0
使用 UDP 1149:12: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 100 link/none inet 10.8.0.1 peer 10.8.0.2/32 scope global tun0 valid_lft forever preferred_lft forever
ip addr show tun0
使用 TCP 443:Device "tun0" does not exist.
任何人都知道為什麼當我更改為 TCP 443 時它不起作用?
好的,所以我找到了解決方案!djsumdog 的坦克給了我關於 log-append 選項的提示。文件中的錯誤:
Options error: --explicit-exit-notify can only be used with --proto udp
所以當我想使用 TCP 時無法使用此選項。現在一切正常。
可能openvpn伺服器無法綁定特權埠:
使用者 沒有人 組 nogroup
嘗試
使用者根組根
看看這是否有效。