29May/14

NOTE: Networking Switch/Router/Firewall – L2,L3,L4 Headers – and where they change – OSI 7 layers – and CEF

Networking Switch/Router/Firewall – L2,L3,L4 Headers – and where they change – also a quick look at OSI 7 layers (simple) #################################################### * http://www.inetdaemon.com/tutorials/information_security/devices/firewalls/stateful_vs_stateless_firewalls.shtml#sthash.vO5Num5c.dpuf * http://www.webopedia.com/quick_ref/OSI_Layers.asp WHAT HAPPENS AT DIFFERENT LAYER  ################################# Basic IP communicationRead More…

25Jan/14

Reverse and Forward Proxy – Notes – Load Balancers – Reverse SSH Proxy

proxy server ############# ############# Read this quickly first (short reads): http://stackoverflow.com/questions/224664/difference-between-proxy-server-and-reverse-proxy-server http://www.f5.com/glossary/load-balancer/ http://www.f5.com/glossary/load-balancing/ http://www.f5.com/glossary/reverse-proxy/   My notes from above reading (and much more)   Forward and reverse proxy are easy to understand,Read More…