Hot Downloads

Serious TCP/IP Vulnerability Exposed

Written by Administrator. Posted in Security News

In a rather startling revelation, the UK's National Infrastructure Coordination Centre has discovered a major flaw in TCP/IP that could allow hackers to crash vulnerable routers and severely disrupt Internet traffic. The problem stems from the fact that it's far easier to reset TCP/IP sessions using spoofed packets than previously thought. In short, the exact sequence number need not be predicted as most TCP/IP implementations will accept any sequence number that falls in a particular range ! This makes predicting the sequence number much easier, and thus spoofing RST packets is possible. Vendors such as Cisco are rushing patches.

CCENT/CCNA

Cisco Routers

  • SSL WebVPN
  • Securing Routers
  • Policy Based Routing
  • Router on-a-Stick

VPN Security

  • Understand DMVPN
  • GRE/IPSec Configuration
  • Site-to-Site IPSec VPN
  • IPSec Modes

Cisco Help

  • VPN Client Windows 8
  • VPN Client Windows 7
  • CCP Display Problem
  • Cisco Support App.

Windows 2012

  • New Features
  • Licensing
  • Hyper-V / VDI
  • Install Hyper-V

Linux

  • File Permissions
  • Webmin
  • Groups - Users
  • Samba Setup