Sep 05, 2017
CentOS7でl2tp方式のVPNサーバーを建てる - Qiita # lsof -i:1701 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME xl2tpd 3505 root 3u IPv4 33488 0t0 UDP hostname:l2tp 参考: L2TP/IPsec VPNサーバの構築 IPSec/L2TP VPN Server on CentOS 6 (PSK) – ZenCoffee Blog Oct 23, 2012 How to set up IPsec VPN on CentOS 7 – VPSCheap.NET Blog
Dec 17, 2019
如果沒辦法連線看看防火牆有沒有擋掉port 500 4500。 [root@localhost ~]# iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with linux - Which ports for IPSEC/LT2P? - Server Fault Also, Port 1701 is used by the L2TP Server, but connections should not be allowed inbound to it from outside. There is a special firewall rule to allow only IPSEC secured traffic inbound on this port. If using IPTABLES, and your L2TP server sits directly on the internet, then the rules you need are: IPsec VPN Server Auto Setup with Libreswan
Install and Configure OpenVPN Server on RHEL 8 / CentOS 8
Nov 14, 2016