+ AlmaLinux OS Stable Release is live!
https://almalinux.org/blog/almalinux-os-stable-release-is-live/
+ Google Chrome 89.0.4389.114 released
https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_30.html
+ nginx 1.19.9 release
http://nginx.org/en/CHANGES
+ CESA-2021:0992 Important CentOS 7 firefox Security Update
https://lwn.net/Articles/851029/
+ CESA-2021:0996 Important CentOS 7 thunderbird Security Update
https://lwn.net/Articles/851030/
+ Linux kernel 5.11.11, 5.10.27, 5.4.109, 5.4.184, 4.19.184, 4.14.228, 4.9.264, 4.4.264 released
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.11
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.27
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.109
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.184
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.228
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.264
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.264
+ VMSA-2021-0004 VMware vRealize Operations updates address Server Side Request Forgery and Arbitrary File Write vulnerabilities
https://www.vmware.com/security/advisories/VMSA-2021-0004.html
CVE-2021-21975
CVE-2021-21983
PHP releases on hold
https://www.php.net/archive/2021.php#2021-03-30-1
ありがちな15の原因を理解 当たりをつけて即解決
Part2 無線LANトラブルの対処法
https://xtech.nikkei.com/atcl/nxt/mag/nnw/18/032300107/032300002/?ST=nxt_thmit_security
壊滅したマルウエア「Emotet」 ウクライナ警察がアジトを急襲
https://xtech.nikkei.com/atcl/nxt/mag/nc/18/052100113/032200052/?ST=nxt_thmit_security
ファイル共有の非常識よ、さらば
https://xtech.nikkei.com/atcl/nxt/mag/nc/18/032300220/032300001/?ST=nxt_thmit_security
新規格で相性の問題 802.11axとWPA3に要注意
Part1 対策に必要な無線LANの基礎
https://xtech.nikkei.com/atcl/nxt/mag/nnw/18/032300107/032300001/?ST=nxt_thmit_security
脆弱性の放置をなくせるか、サイバートラストがZabbix統合の管理ツールで攻勢
https://xtech.nikkei.com/atcl/nxt/column/18/00001/05366/?ST=nxt_thmit_security