Web Browser Chrome, EdgeはCRL, OCSPで失効検証をしない
Chrome and Edge do not check revocation with CRL and OCSP.
Application Software
Web Browser 
Acrobat Acrobat「デジタル署名」と「証明」の違い
Acrobatで「証明書を使用」の時、「デジタル署名」、「証明（可視署名）」、「証明（不可視署名）」が選択できる。「デジタル署名」は無料版のAcrobat Readerでも可能だが、「証明（可視署名）」、「証明（不可視署名）」は有料版のAc...
Baseline Requirements DNS：CAAレコードの調べ方
DNS: How to check CAA records.
Chrome - Release Chrome 124 Release Schedule
ChannelsDate (YYYY/MM/DD)Beta2024/03/20- 2024/04/04Stable2024/04/10 FEATURES PLANNED IN THIS RELEASE: Deprecated Remove ...
Baseline Requirements pkilintのインストールと利用方法（Rocky Linux 8.9）
How to install and use pkilint. (Rocky Linux 8.9)
Chrome - Release Chrome 123 Release Schedule
ChannelsDate (YYYY/MM/DD)Beta2024/02/21- 2024/03/07Stable2024/03/13 FEATURES PLANNED IN THIS RELEASE: Deprecated Remove ...
Chrome - Release Chrome 122 Release Schedule
ChannelsDate (YYYY/MM/DD)Beta2024/01/24- 2024/02/08Stable2024/02/14 参照：Chrome Platform Status: Roadmap Click here to dow...
Web Browser Let’s Encrypt TLS server certificate installation procedure – RHEL, Rocky Linux, AlmaLinux, CentOS
Required in advance Apache is installed and https communication is available. http (port 80) is open. The OS can be publ...
Chrome - Release Chrome 121 Release Schedule
Chrome 121 release schedule.(リリース予定)
Japanese and English. (日本語と英語)