Build a VPN Server Based on CentOS
1. VPN Server Environment Description
Operating System: CentOS 6.5
VPN-Server local Nic information:
[root@VPN-Server~]
#ifconfig
eth0Linkencap:EthernetHWaddr00:0C:29:DA:D0:E0
inetaddr:192.168.30.130Bcast:192.168.30.255Mask:255.255.255.0
inet6addr:fe80::20c:29ff:feda:d0e0
/64
Scope
A problem occurred when we used PacketiXVPN in our company to build a VPN server using CentOS. After a long time, I had not solved the problem, so I found out the problem by looking for their technical staff to completely simulate our network environment...
A problem occurred when we used PacketiX VPN to build a VPN server using CentOS. After a long time, I did n
Nowadays, with the popularization and development of the Internet, mpls vpn technology is becoming more and more popular. mpls vpn is a type of MPLS Multiprotocol Label Switching Based Multi-Protocol Label Switching) the technical ip vpn is to use MPLS technology on network routes and exchange devices to simplify the route selection method of the core router, usi
Right-click the Network Neighborhood selection properties on the desktop, and open the Internet connection window
Click to create a new connection, pop-up New Connection wizard
Click Next
Select the network that is connected to my workplace and click Next
Select Virtual Private network connection, click Next
Fill in the company name (you can, of course, name yourself here), click Next
Select Do not dial initial connection, click Next
Enter the host name or IP address (addres
Security for the Enterprise is an eternal topic, firewall is able to protect the network security of the first line of defense, through the protection of firewalls, can be viruses, trojans, and even malicious attacks shut out, so that the firewall is to protect the security of users indispensable a barrier. The VPN firewall, on the basis of increasing the user's security, has increased the VPN function, whi
VPN is an indispensable part of enterprise informatization construction. With the popularization of invoicing, finance, ERP, CRM and other software, many small and medium-sized enterprises began to build a VPN environment for the purpose of further remote access. With VPN, branches and mobile users of small and medium-sized enterprises can access the servers of E
The Site to Site VPN settings for vro Setup detailed Frame Relay configuration first describes that frame relay generally rents ISP services. The above configurations are all configured by China Telecom for you. what you get is the two DLCI values in the blue font, used to identify the line of Frame Relay. if you really want to do it on your own, it's as if I have written the red font that must be in front of it. then the blue part must also be in or
System Environment: CentOS 5.4 FinalNIC: eth0: 98.126.x.x
Check the MPPE of the system first. Basically, CentOS itself exists. If you see OK, you can continue. If not, you can patch it and it will be everywhere on the Internet.Modprobe ppp-compress-18 echo OK
CentOS5.4 has already been installed with the ppp version. You can use this version or reinstall it. Here I uninstalled it and reinstall it all by myself.Rpm-q pppRpm-e rp-pppoeRpm-e pppRm-rf/etc/ppp
The required software is as follows:Wge
Differences between LAN, WAN, WLAN, VLAN, and VPN
Local Area Network (LAN)
A group of computers that are interconnected by multiple computers in a region. Generally, it is less than a few thousand meters. Local Area Network (LAN) Supports file management, application software sharing, printer sharing, scheduling within the Working Group, email and fax communication services, and other functions. A lan is closed and can be composed of two computers in
VPN has been for many years, but always because of laziness, so has not written about how to build a VPN server article, this year's interest caused by sharing a personal build VPN server process, write simple, do not shoot bricks. The use of VPN is very wide, can be described most of the network worms and technology s
Article title: Create a VPN server on suse10. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
The VPN is a virtual private network. the private network can be understood as an enterprise Intranet or a LAN. why is the word "virtual" added? It refers to the establishment o
My host CENTOS6.564X Step 1: Download the one-key installation package for vpn (dedicated to CentOS6) # wgethttp: // uninstall:
My host CENTOS 6.5 64X
Step 1: Download the one-key installation package for vpn (dedicated to CentOS6)
#wget http://www.iamhackspace.com/download/shell/vpn_cent6.sh#chmod a+x vpn_centos6.sh
Step 2: run the one-click installation package
#bash vpn_centos6.sh
There are three options
Ssl vpn has been a major technology since its appearance, allowing enterprises to greatly reduce their remote access fees and provide specialized transaction services through the Internet. VPN brings great commercial value. However, only when such a premise is met can this value be realized, that is, it can provide appropriate levels of protection, make sure that enterprise information is accessible only by
Vpn Principle and Implementation-tunnel implementation theoretically reasonable ip over ssl needs some additional technical support before it can be used, you must try to re-encapsulate an ip data packet by ssl. This action cannot be performed in the original standard protocol stack. The standard protocol stack does not support two-way data flow, one of the solutions is to modify the Protocol Stack and implement a lightweight ssl protocol layer under
VPN is an extension of a private network, that is, a temporary and secure private network connection created on a private and public network (usually the Internet. Currently, VPN is mainly used in the following three aspects: First, remote user access is achieved through the Internet, and VPN can support secure remote access to the enterprise LAN through the Inte
Only three steps are required to quickly build a vpn in Centos
My host CENTOS 6.5 64X
Step 1: Download the one-key installation package for vpn (dedicated to CentOS6)
# Wget http://www.iamhackspace.com/download/shell/vpn_cent6.sh#chmod a + x vpn_centos6.sh
Step 2: run the one-click installation package
# Bash vpn_centos6.sh
There are three options:
Install VPN
Install pptpd VPN service in CentOS 6.4
Install pptpd VPN service in CentOS 6.4
I. Environment Introduction
Pptpd is often used to penetrate the wall or manage servers in the IDC
1) CentOS 6.4 64bit minimal
Ii. Service Installation
$ Wget http://poptop.sourceforge.net/yum/stable/rhel6Server/pptp-release-current.noarch.rpm$ Rpm-ivh pptp-release-current.noarch.rpm$ Yum install pptpd ppp
Iii. Configuration
$ V
CCNP Study Notes 2-routing part-VPNReview the dynamic protocol: rip vpn ospf encapsulation UDP 520 IP 88 IP 89 update address 224.0.0.9 224.0.0.10 224.0.0.5/6 use passive to implement intercommunication between the two ends of unicast neighbor and the output interface to implement unicast NBMA point to multicast unicast key complete neighbor update methods, timing 30 seconds 15% offset, trigger incremental update, trigger timing 30 minutes trigger AD
China Unicom CDMA (WAP monthly subscription) method on the Internet.
China Unicom's "interactive vision" Traffic monthly package (that is, WAP monthly package) on the Internet method.
I. Specific methods:
1. First install the driver of the CDMA Nic.
2. Install the VPN Client software and authentication certificate.
3. Insert the UIM card into the NIC and enable the CDMA Nic.
Program .
Dialing #777
Account WAP
WAP Password
4. Enable the
According to many users, some Unicom, mobile 3G networks and some wired networks do not support PPTP VPNs.
Launched the L2TP VPN. We can register above to obtain free traffic.
Registration address:Click here IPhone settings
The other steps are the same as the pptp vpn settings. In the VPN properties (Set/General/Network/
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