nat – POFTUT

Tagged: nat

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What Is A Firewall and How Its Work?

Today Firewall is depicted as the main component of the security and networks. Firewalls provide a lot of different operations and features. In the old days, the firewall was simply used to block or allow some ports and management of the NAT. In these days there are a lot of different threats where the firewall is used to detect and stop these threats. Firewall Features Today modern firewall’s provides a...

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What Is NAT (Network Address Translation) and How It Works?

Network Address Translation a.k.a. NAT is a process or technique used to change IP address and TCP port numbers by an intermediate device like firewall, router, modem etc. There are different use cases for NAT but the most popular one is to use a single WAN IP address for multiple servers and client which is located LAN. Topology NAT has the following topology in general. NAT will occur on the...

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Introduction To Pfsense Router and Its Features

Checkpoint, Palo Alto, Cisco ACS and others, all of them are enterprise, popular and good firewalls. But all of them requires some price to pay. Are there any free alternative to these enterprise firewalls? Yes there are a lot but most of them is not a competitor for them. Pfsense is the most advanced, powerful, popular alternative to these firewalls. Pfsense is not too much advanced like them but provides...

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What is Network Address Translation (NAT)?

In corporate networks or internet works on dominantly on IP protocol. IP protocols have two versions. Most popular default one is IPv4 and other next generation by not so widespread version is IPv6. IPv6 have a lot of advantages against IPv4 but as you know changing and infrastructure through world wide is not so easy job. Now our question is what is Network Address Translation simply NAT. NAT Example In...

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