Week 6: Networking
This week, I reviewed networking concepts.
A router is one kind of device used to connect different devices and allow them to communicate. Most consumer and small business routers also integrate a networking switch and wireless access point for convenience. A relatively new development is local wireless mesh networks to propagate a wireless signal and Internet connection throughout a building without having to run new cables or use coaxial or power line networking technologies (such as MoCA, HPNA, HomePlug or G.hn) to connect devices, although coaxial and sometimes power line networking can offer increased performance over wireless, especially in denser environments like apartment buildings, condos, or offices.
One of the first things people wonder about IPv6 besides what it is, is do I have it? The website http://ds.test-ipv6.com helps provide an answer to that question.
Border Gateway Protocol is used in the core networks of the Internet, however it has some security problems that allow hijacking. The site https://isbgpsafeyet.com/ by Cloudflare is one effort to raise awareness of possible to solutions to some of these problems, such as using certificates to verify BGP records, similarly to how certificates are used with Transport Layer Security to verify that you're actually connecting to your bank's website and to encrypt the connection. This can also be used to protect software driver downloads and other software. Certificates are also valuable in helping to prevent a news source from being impersonated by a malicious actor to spread untrue propaganda using the news source's identity.
IPv4 and IPv6 are used to transport data and otherwise communicate over the Internet.
A router is one kind of device used to connect different devices and allow them to communicate. Most consumer and small business routers also integrate a networking switch and wireless access point for convenience. A relatively new development is local wireless mesh networks to propagate a wireless signal and Internet connection throughout a building without having to run new cables or use coaxial or power line networking technologies (such as MoCA, HPNA, HomePlug or G.hn) to connect devices, although coaxial and sometimes power line networking can offer increased performance over wireless, especially in denser environments like apartment buildings, condos, or offices.
One of the first things people wonder about IPv6 besides what it is, is do I have it? The website http://ds.test-ipv6.com helps provide an answer to that question.
Border Gateway Protocol is used in the core networks of the Internet, however it has some security problems that allow hijacking. The site https://isbgpsafeyet.com/ by Cloudflare is one effort to raise awareness of possible to solutions to some of these problems, such as using certificates to verify BGP records, similarly to how certificates are used with Transport Layer Security to verify that you're actually connecting to your bank's website and to encrypt the connection. This can also be used to protect software driver downloads and other software. Certificates are also valuable in helping to prevent a news source from being impersonated by a malicious actor to spread untrue propaganda using the news source's identity.
IPv4 and IPv6 are used to transport data and otherwise communicate over the Internet.
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