Re: [問答] 用pptp架設VPN server
※ 引述《gn00618777 (非常念舊)》之銘言：
: ※ [本文轉錄自 Network 看板 #1KAcIOZh ]
: 作者: gn00618777 (非常念舊) 看板: Network
: 標題: [問答] 用pptp架設VPN server
: 時間: Tue Sep 30 16:06:43 2014
: 我先在同個網域先做測試，VPN server ip(ubuntu):172.16.51.27
: client ip(Windows):172.16.51.16
: 1 apt-get install pptpd
: =============================================
: 2 vim etc/pptpd.conf
: localip 172.16.51.27
: remoteip 172.16.51.234-238, 172.16.51.245
: =============================================
: 3 vim etc/ppp/pptpd-options
: name pptp
: ms-dns 168.95.1.1
: ms-dns 8.8.8.8
: ===============================================
: 4 vim etc/ppp/chap-secrets
: vpn_user pptp bernie 172.16.51.234
: =================================================
: 接著使用Windows VPN 連線程式 輸入以上serviceＩＰ以及帳密，無法與目標建立連線
: 出現 2147952461 錯誤訊息，googlg 之後去改了ＶＰＮ連線點右鍵內容安全性
: 資料加密選不允許加密，以及取消 Microsoft CHAP 版本２-->試驗結果無效。
: 接著懷疑ubuntu沒有開VPN server 1723 port，請問是用iptables開啟嗎？
: iptables -A INPUT -p tcp --dport 1723 -j ACCEPT --> 試驗結果無效
: 我目前就只是想用Windows VPN連線程式連到 device 上的 ＶＰＮ server而以
: 沒想用來上網，請問我到底沒設定到啥呢？ 謝謝。
我打上 grep pptp /var/log/syslog 出現訊息
Sep 30 09:27:38 ubuntu-armhf pptpd[1553]: CTRL: PTY read or GRE write failed (pty,gre)=(6,7)
Sep 30 09:27:38 ubuntu-armhf pptpd[1553]: CTRL: Reaping child PPP[1554]
Sep 30 09:27:38 ubuntu-armhf pptpd[1553]: CTRL: Client 172.16.51.16 control connection finished
Sep 30 09:28:56 ubuntu-armhf pptpd[1555]: CTRL: Client 172.16.51.16 control connection started
Sep 30 09:28:56 ubuntu-armhf pptpd[1555]: CTRL: Starting call (launching pppd, opening GRE)
Sep 30 09:28:56 ubuntu-armhf pppd[1556]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so loaded.
Sep 30 09:28:56 ubuntu-armhf pptpd[1555]: GRE: read(fd=6,buffer=1547c,len=8196) from PTY failed: status = -1 error = Input/output error, usually caused by unexpected termination of pppd, check option syntax and pppd logs
Sep 30 09:28:56 ubuntu-armhf pptpd[1555]: CTRL: PTY read or GRE write failed (pty,gre)=(6,7)
Sep 30 09:28:56 ubuntu-armhf pptpd[1555]: CTRL: Reaping child PPP[1556]
Sep 30 09:28:56 ubuntu-armhf pptpd[1555]: CTRL: Client 172.16.51.16 control connection finished
Sep 30 09:29:22 ubuntu-armhf pptpd[1557]: CTRL: Client 172.16.51.16 control connection started
Sep 30 09:29:22 ubuntu-armhf pptpd[1557]: CTRL: Starting call (launching pppd, opening GRE)
Sep 30 09:29:22 ubuntu-armhf pppd[1558]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so loaded.
Sep 30 09:29:22 ubuntu-armhf pptpd[1557]: GRE: read(fd=6,buffer=1547c,len=8196) from PTY failed: status = -1 error = Input/output error, usually caused by unexpected termination of pppd, check option syntax and pppd logs
Sep 30 09:29:22 ubuntu-armhf pptpd[1557]: CTRL: PTY read or GRE write failed (pty,gre)=(6,7)
Sep 30 09:29:22 ubuntu-armhf pptpd[1557]: CTRL: Reaping child PPP[1558]
Sep 30 09:29:22 ubuntu-armhf pptpd[1557]: CTRL: Client 172.16.51.16 control connection finished
Sep 30 09:34:10 ubuntu-armhf pptpd[1559]: CTRL: Client 172.16.51.16 control connection started
Sep 30 09:34:10 ubuntu-armhf pptpd[1559]: CTRL: Starting call (launching pppd, opening GRE)
Sep 30 09:34:10 ubuntu-armhf pppd[1560]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so loaded.
Sep 30 09:34:10 ubuntu-armhf pptpd[1559]: GRE: read(fd=6,buffer=1547c,len=8196) from PTY failed: status = -1 error = Input/output error, usually caused by unexpected termination of pppd, check option syntax and pppd logs
Sep 30 09:34:10 ubuntu-armhf pptpd[1559]: CTRL: PTY read or GRE write failed (pty,gre)=(6,7)
Sep 30 09:34:10 ubuntu-armhf pptpd[1559]: CTRL: Reaping child PPP[1560]
Sep 30 09:34:10 ubuntu-armhf pptpd[1559]: CTRL: Client 172.16.51.16 control connection finished
霧煞煞= =
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