openvpn problem

The recent OpenVPN service abnormal quit many times, because the original in order to troubleshoot problems record a large number of debug log, resulting in problems when you want to locate the problem is very difficult, the instant log was brushed off, the process dropped, instantaneous start, instantaneous and dropped, resulting in a lot of orders lost! Because the day file records too much useless inform

Test the OpenVPN encrypted tunnel on a single machine and solve the problem In fact, the relationship between this article and OpenVPN is not very large, but the problems exposed during the OpenVPN test. This article contains many details about IP routing and conntrack. Sometimes, to save on the machine, I want to simu

Tags: Nima with log HTTP win7 env logs add localInitially Win7 installed tap-windows Virtual ethenet Adapet, but only one local connection can be opened, and the re-addition of the tap window Adapater failed.Then the web said after the uninstall and then install, I put this device driver to TM Unloading, the results can no longer be installed.TMD in the company's Win7 computer can be added normally .....Then found an old version of the OpenVPN, downlo

OpenVPN cannot be used in Android5.0 (Lollipop) for problem analysis, openvpnlollipopAfter several days of research efforts, we finally solved the problem that OpenVPN cannot run on Android5.0. The solution and troubleshooting problems are as follows:1. use NDK to recompile the latest ics-

Two days ago, hivefans built an openvpn server on a server in the cluster because of the inconvenience caused by the cluster's network segment. If you have encountered some problems, record them. He only built an openvpn and did not install ovpn on other servers in the cluster. He wanted to route the Intranet network segment of the cluster through ovpn, the company can access the Intranet address of the cl

Test the OpenVPN encrypted tunnel on a single machine and solve the problemIn fact, the relationship between this article and OpenVPN is not very large, but the problems exposed during the OpenVPN test. This article contains many details about IP routing and conntrack.If you ping the IP address configured on a network card, the result will not pass through the ne

Rotten mud: ubuntu 14.04 OpenVPN server, 14.04 openvpn This article is written by Xiuyi Lin FengProviding friendship sponsorship, first launched in the dark world The company branch needs to connect to the company's internal server, but the server only allows access to the company's internal network. To solve this problem, we plan to use VPN. PPTP is the most w

detected by the keepalive Persist-tun # restart the VPN, keep the Tun or tap device Linkup, otherwise the network connection will linkdown first and then Linkup Status/tmp/openvpn-status.log # Periodically write some status information of openvpn to the file in order to write your own program billing or other actions Log Openvpn.log #record log, delete the original log information after each reboot

Based on the linux operating system architecture openvpn Summary-Linux Enterprise Application-Linux server application information, the following is a detailed description. Use OPENVPN to connect data centers 1 1 status quo 2 2 network structure 2 3. server information and network security 4 3.1 server information 4 3.2 Network Security 4 4 Use openvpn for

The first bottleneck of openvpn is that the Tun character device reads and writes frames at one link layer. The reason why the user-mode openvpn process must have the same link-MTU on both ends, it is because each time openvpn reads a complete Ethernet frame from the/dev/NET/TUN character device, there are not many, and the library interface: ssize_t read (int fd

incoming data packet is its destination, it only needs to forward the buffer to the corresponding destination VPN node. The tunnel is built between the VPN processing nodes, but it is neither an IP Tunnel nor a layer-4 tunnel, but an application layer tunnel, which is a pure buffer tunnel, A buffer arrives at the VPN Switch and is read as the socker buffer. This buffer is an encrypted IP datagram or an Ethernet frame with the OpenVPN-ng header added,

\ client. ovpn Copy client. ovpn to D: \ Program Files \ OpenVPN \ config. Of course, I have installed the client on the D disk and you can choose it based on your situation. Put the three downloaded Files under D: \ Program Files \ OpenVPN \ config and then: Edit the configuration file: ClientDev tunProto udpRemote 192.227.161.xx 1194 // change it to your own vps ip AddressResolv-retry infiniteNobindPe

Mud: openvpn configuration file details, openvpn configuration file This document consistsXiuyi Lin FengProviding friendship sponsorship, first launchedThe world In the previous article "build OpenVPN server in ubuntu 14.04", we mainly explained how to build and use openvpn. In this article, we will detail the config

1 openvpn OverviewVPN replaces expensive leased lines to implement a virtual network on the open Internet. The virtual network itself provides security protection for data on an insecure real network.Openvpn implements a flexible VPN. openvpn has the following advantages compared with the IPsec-based VPN implemented by modifying the Protocol Stack:1. openvpn does

-type server Tls-auth ta. key 1 Comp-lzo Verb 3 Auth-user-pass Note: If the client is installed on a Windows system, you must use the Administrator permission to open it. Otherwise, the system will not add the route pushed by the VPN. If there are multiple VPN services, you can place the root certificate ca. crt, ta. key File and client xx. ovpn file in the same directory under config. 6.3 Test For more information about how to use PrivacyIDEA, see the official documentation or It is recom

Centos6.4 quickly build an openvpn server based on user name and password authentication Today, VPN applications are widely used. I have previously written a blog on PPTPD. The link is http://cyr5425blog.51cto.com/714067/4101788. The home has recently changed a new broadband. You cannot use the company's PptpdVPN. the dialing status remains at the step of verifying the user name and password. Baidu and Google did not solve this

; ${log_file}Exit 1Where Passfile is the user name password file path, log_file output log file. Note: checkpsw.sh needs to have execute permissions. The Passfile format is: Username + space + password, for example: NETINGCN MyPassword4. Start OpenVPN and set it to boot automatically. Start a service/etc/init.d/openvpn start Join Boot auto StartChkconfig OpenVPN