Build a network at home (wireless router settings)新着!!
Building a network at home (wireless router settings) Setting up a router can be a bit difficult for beginner […]
Build a network at home (repeater)新着!!
Build a network at home (repeater) Due to the influence of the new coronavirus, remote work and online classe […]
Build a network at home (install a wireless router)新着!!
About the installation location Regarding the installation location of the wireless broadband router (hereaft […]
Build a network at home新着!!
build a network at home Broadband connections such as FTTH (optical fiber) are now the norm for home Internet […]
POP before SMTP/APOP before SMTP新着!!
Email authentication (POPS before SMTPS) In APOP before SMTP, the password used for authentication was encrypt […]
E-mail (restricted by domain, linked with blacklist)新着!!
Email (restrict by domain) In e-mail, the part after @ represents the domain name. By specifying this do […]
E-mail (S/MIME and PGP) and mail relay problems新着!!
Email (S/MIME and PGP) S/MIME (Secure/Multipurpose Internet Mail Extensions) and PGP (Pretty Good Privacy) ar […]
Public Key Cryptosystem新着!!
What is public key cryptography? In public key cryptography, a pair of keys, a private key and a public key, i […]
Common Key Cryptosystem新着!!
What is public key cryptography? In public key cryptography, a pair of keys, a private key and a public key, i […]
What is MIME? E-mail encryption and electronic signature新着!!
What is MIME Although e-mail is now a service that everyone uses, e-mail itself has a long history, dating ba […]