IJCSI International Journal of Computer Science Issues, Vol. 8, Issue 6, No 2, November 2011 IJCSI, International Journal of Computer Science Issues, Vol. 8, Issue 6, No 2, November 2011, 207-217
The stimulate of this research seeks collaboration of firewalls which, could reach to the capability of distributed points of security policy; the front-end entity may much interact by the invaders so the separation between this entity and back-end entity to make the secure domain protection is necessary; collaborative security entity has the various task in the organization and there is a certain security policy to apply in; the entities like DPFF have to be protected from outsiders. Firewalls are utilized typically to be the main layer of security in the network framework. The research is presented the particular segment of the proposed framework that DPFF based on the developed iptable firewall to be the layers of defense, which is protected front and backend of the framework with a dynamic security and policy update to control the framework's safeguard through proposed portion approach algorithm that utilize to reduce the traffic and efficiency in detection and policy update mechanism. The policy update mechanism for DPFF is given the way of its employment. The complete framework signifies a distributed firewall, where the administrator configures the policy rules set, which could be separately or else from administration nodes' side.
A Novel Approach For Intranet Mailing For Providing User Authentication
随着公共互联网和电子商务的爆炸式增长，私人计算机和计算机网络如果没有充分的安全保护，则越来越容易受到破坏性攻击。黑客、病毒、报复性员工甚至人为错误都对网络构成了明显的威胁。各种实际上与安全问题密不可分的解毒剂是-密码学、认证、完整性和不可否认性、密钥分发和认证、通过实现防火墙的访问控制等。（Pretty Good Privacy）不完全不可否认服务的主要局限性，这增加了通过NRR的电子邮件消息通信的安全性和效率（Non-Repudiation of Receiving）的安全性，并在此基础上引入PGP原有的NRO（Non-Repudiation of Origin）的安全性特征，保证了新的安全服务MNR（Mutual Non-Repudiation）。
A novel approach for security issues in VoIP networks in Virtualization with IVR
VoIP（Voice over Internet Protocol）是近十年来发展起来的一项技术。它提供了音频，视频流的设施，在网络上成功实施。但是，它提供了网络上的文本传输功能。由于它的成本效益的解决方案的实施，它可以被开发为一个有声望的组织的员工之间的相互沟通。所提出的想法已经在VoIP技术的音频流领域实现。在音频流中，VoIP服务器在双方通信期间可能存在安全漏洞。在所提出的模型中，首先，VoIP系统已经实现了IVR（交互式语音响应）作为一个案例研究，并与作为VoIP服务提供商的星号服务器提供的安全参数的实施。星号服务器已经配置了不同的安全参数，如VPN服务器，防火墙iptable规则，入侵检测和入侵防御系统。每个参数都将由VoIP服务器的系统管理员以及MySQL数据库进行监控。系统管理员将通过连接到星号服务器的邮件服务器获得与服务器上的攻击相关的每个更新。所提出的系统的主要优点是VoIP服务器单独配置为VoIP服务器，IVR提供商，具有IDS和IPS的邮件服务器，VPN服务器，在虚拟化环境中的单个星号服务器中与数据库服务器连接。VoIP系统是在大学系统内部的局域网中实现的
