Open Source Ipsec

This article describes how to use an external DHCP server to assign IP addresses to your IPsec VPN clients.

This recipe allows access for members of the Employee user group, created in the previous recipe, Creating security policies for different users.

In this recipe, two-factor authentication is added to a user account to provide extra security when connecting to an IPsec VPN using FortiClient for Mac OS x.

For small and medium-sized enterprises, there are many free and open source router and firewall solutions, even as a business choice. 　　Many of these products offer LAN services, such as VPN services, hotspot gateways, and the use of mandatory network portals to share wireless networks. Here, the editors find open source and free router projects that are suitable for businesses that include small businesses, midsize, and even the size of Cisco and Juniper.  Gossip Less, we look at these seven open source and free Linux network operating system. &nb ...

This article shows how to use remote IPsec and SSL VPN tunnels to bypass Internet access restrictions.

Today, open source firewalls are numerous. 　　This article will cover 10 of the most practical open source firewalls that fit your business needs. 1. Iptables Iptables/netfilter is the most popular command line based on firewalls. It is the safe line of defense for Linux servers. Many system administrators use it to fine-tune the server. The function is to filter packets from the network stack in the kernel, including: listing the contents of the packet filtering rule set, and executing fast because it only checks the header of the packet, and the administrator can ...

Introduction Cloud application developers and DevOps have successfully developed tens of thousands of applications for IaaS (Amazon AWS, Rackspace, etc.) and PAAs (Azure, Google App Engine, Cloud Foundry, etc.) platforms. These platforms provide basic security mechanisms such as authentication, Dos attack defense, firewall policy Management, logging, basic user and account management, but security concerns remain the primary obstacle to enterprise cloud implementations. Security concerns for the cloud, deploying from a secure configuration ...

The Cloud Security Alliance (CSA) 's latest report, "The main threat to cloud computing", presents some emerging risks and modifies and reordered existing risks. The report, entitled "Nine sins: the main threat to cloud computing in the 2013", is based on feedback from cloud computing and the security community, where many individuals and organizations weigh the risks they face, which are the most recent reports that deserve more attention. As one of the three co-chairs of the Working group responsible for the report, I have raised a number of questions regarding the fourth threat on the list ...

According to the 2012 Cisco Global Cloud Network survey, most IT decision makers see the cloud-ready network as the biggest requirement for implementing business applications to cloud migration. To address this dilemma, Cisco today announced the introduction of Cisco Cloud Interconnection Solutions, introducing a cloud-enabled routing and WAN optimization platform, and an open architecture that enables users to connect intelligently to cloud services-innovative Cloud Connector. The Cisco Cloud Interconnection solution contains three key elements: Cloud connector– hosted on the ISR G2 platform for new software modules ...

The router is an important bridge for the LAN to connect the external network, is an indispensable part in the network system, and also the Frontier Gateway of the network security. But the maintenance of the router is rarely appreciated. Just imagine, if the router even its own security is not guaranteed, the entire network there is no security to say. Therefore, in the network security management, the router must be properly planned and configured to take the necessary security measures to avoid the security problems of the router to the entire network system to bring loopholes and risks. We are here to introduce some of the router to enhance the security of the measures and methods, let me ...