Network Security
In this subject,which mainly discuss the program,proposal,and experience of network information security.
摘要: 可能很多人对135-139之间的端口不怎么熟悉，当开启远程桌面RDP服务的时候，总是能在后台看到启用的这几个端口。这些端口有什么用呢？这里有些简单的介绍，看了就会明白
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摘要: 这是最基本的LAN-Based Active-Standby Failover。非常适合入门者学习。其实，如果仅仅是为了作LAN-Based Failover，两个pix中用于作failover的接口同时连接到一个网卡上就可以了，这样，就可以省去用dy模拟了交换机了，省内存，效率也较高。
实验步骤以及方法:
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摘要: Sometimes, when we encoutered the probleb with losing password for pix firewall, you can imagin how you are upset, just only don't know how to do it.I believe if you know the method ,you will calm enough to solve it well. Now let's know about how to begin it.To recover from the loss of passwords, perform the following steps:
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摘要: So far as now, it still remeber that i take part in FAT in Suzhou YHQ,just at that time, i touch the Cisco ASA5540's configuration. Unfortunately, the appliance was protected by a password,which maybe set by other colleague. However we must carry on configuring for it.There is no choice for us but to reset the password just only we can login monitor mode.Next we look over related reference statistics, at last,we overcome the trouble successfully.Here,i will emphasis on how to configure ASA5540's
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摘要: RAIDIUS是什么？可能大家不很陌生，可你知道它的作用和用途吗,以及应用它有什么优点？
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摘要: 在建置遠端存取網路（Remote Access Network）時，通常為了安全性的考量，企業會使用遠端存取伺服器（Remote Access Server，RAS；或者稱之為Network Access Server，NAS）來提供更嚴密的防護：在遠端的使用者要藉由網路使用公司內部的資源時，必須先登入至RAS，經過RAS使用者帳號的檢查，確認無誤後才可存取公司的網路。一般而言，這是最起碼的防護，可是並不夠安全，一旦使用者的帳號被有心人士竊取，公司網路上所有的資料與機密就曝光了。
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