This post is an introduction to computer networks. Computer Network Devices Computer network devices includes switch, routers or firewalls. You can read this post about computer network devices. Area Networks Examples of area networks are WAN or LAN. You can…
This post is an introduction to network firewalls (FW). Firewalls should be complemented with other controls like antivirus scanners, data loss prevention (DLP) solutions and intrusion detection system (IDS) tools. Types of Firewall Firewall classification criteria: Types of Firewall by…
This post summarizes some aspects of information security on computer networks. Network Security Controls Security Gateway Security gateway is a broad term to refer to a network edge security device. Firewall Firewall is a control. Proxy servers are a type…
Network protocols can be classified by the OSI layer where they operate. Computer Network Protocols by OSI Layer This section informs lists computer network protocols by their OSI layer. OSI layer are, in incremental order: Data Link OSI Layer Protocols…
This post summarizes Authentication, Authorization and Accountability (AAA) protocols or AAA network protocols. Do not confuse the AAA protocols with the authentication protocols like EAP, CHAP and PAP. Authentication protocols works in the OSI layers 2 and 3, and AAA…
This post summarizes gateway protocols or routing protocols on computer networks. All of them are within OSI layer 3. List of Network Routing Protocols Overall list of network routing protocols: The two main categories of network routing protocols are: Interior…
This post explains briefly what is a domain name system (DNS). Device Network Identifier Devices in a network are identified based on a different identifiers: This post explains how domain names are used using the domain name system (DNS). In…
This post explains how to activate bluetooth tethering from an Android device and then connect a Windows 10/11 computer to it, so it makes use of the Android’s device internet connection. Steps on how to connect a Windows 10 computer…
This post lists some of the main Content Distribution Networks (CDNs). List of Content Distribution Networks (CDNs) List of Content Distributions Networks (CDNs): Cloudflare Akamai Amazon CloudFront CacheFly Lumen CDN Cloudflare Akamai Amazon CloudFront CacheFly …
This post lists some anonymity networks: Tor / Onionland Freenet I2P ZeroNet Tor / Onionland Tor network is sometimes known colloquially as “onionland” because of the onion routing technology it uses. Official website Freenet Official website I2P Official website ZeroNet…