Troubleshooting Internetz Connection, part 05: How does internetz work?
Internet is a series of interconnected computers. One or more computers that are belong into the same logical or physical group are called a network. Each “point” in the network is called a network node, and networks can be connected into larger networks. Super-network, connecting smaller and smaller networks into a whole is what we [...]
Troubleshooting Internetz Connection, part 06: What is LAN, WAN, ISP, WISP, CPE, DMZ?
Lets get our freak on, now that you’ve learned nothing new, let me complicate your life with few abbreviations. Relevant ones, at least. Linked group of your own machines is called Local Area Network. LAN is short for it, and in the typical setup for the home user, LAN can be made out of any [...]
Troubleshooting Internetz Connection, part 07: Setup your LAN gude
To correctly setup your LAN we need to identify key elements in it.
Troubleshooting Internetz Connection, part 08: Analysis
IPv4 addressing space is handled by IANA, Internet Assigned Numbers Authority. They delegate managers role to RIRs, Regional Internet Registries. One exists for every continent. ICANN also reserves addressing space for Private Use, that is meant to be used in private networks, LANs, behind routers that handle NAT. Networks addressing space reserved for private use [...]
Troubleshooting Internetz Connection, part 09: Gateway Router
Network Gateway is your router, that you are renting from your ISP or have bought it from them or elsewhere. Routers today usually have one port designated for WAN, aka Wide Area Network or in simpler terms – connection from your network towards the ISP and the Internet. Today, most of the routers have another [...]
Troubleshooting Internetz Connection, part 10: WAN configuration
It depends what protocol your ISP is using to authenticate their customers, but it boils down to one of three: PPTP, PPPoE, or automatically assigned address. PPTP is point-to-point tunneling protocol, devised by Microsoft and used today to automatically establish VPNs from end-users to the networks. PPPoE is point-to-point protocol over Ethernet, another tunneling protocol [...]
