設定DNS集中化的細節

 gmail dkim 設定

https://support.google.com/a/answer/174124?hl=zh-Hant

--------------------------------

https://blog.toright.com/posts/6232/email-verify-domain-spf.html

https://www.opencli.com/linux/bind-dns-create-spf-record

update switch firmware

 update all switches firmware in lan

Hp 

Aruba

Ruckus

Unifi

Upgrade Proxmox from 5.x to 6.0

官網說明：

https://pve.proxmox.com/wiki/Upgrade_from_5.x_to_6.0#Continuously_use_the_pve5to6_checklist_script

參考：

https://wiki.freedomstu.com/books/proxmox-ve-%E8%99%9B%E6%93%AC%E7%B3%BB%E7%B5%B1%E8%A8%98%E9%8C%84/page/proxmox-ve-5x-to-6x-%E5%8D%87%E7%B4%9A

影片介紹：

https://www.youtube.com/watch?v=-izPmkID0dI&t=852s

檢查升級時，中間出現警告，下方解決方案

遇到的問題：

Update Proxmox cluster 5 to 6, unable to resolve ring0_addr

https://forum.proxmox.com/threads/update-proxmox-cluster-5-to-6-unable-to-resolve-ring0_addr.57133/

把 name 改 ip

------------------------------------  未完全解決 --------------

Mount no longer works in Proxmox 6 - NFS - Synology

https://forum.proxmox.com/threads/mount-no-longer-works-in-proxmox-6-nfs-synology.56503/page-6

暫時解決的方案：＃114

 Edit this file:
/usr/share/perl5/PVE/Storage/NFSPlugin.pm

by commenting the following line in check_connection function:

Code:

if (my $err = $@) {
# return 0;  ### this line needs to be commented out
}

then reload the service via systemctl restart pvedaemon

進行系統更新---Linux

進行系統安全性更新---Linux

web,www,librenms.ipam,moodle.....

firewall update

upgrade firmware 

unifi ap & switch全數更新

unifi ap & switch全數更新

Windows系統安全性更新

AD , print server, File server, wsus全數安全性更新並重新開機。

moodle update

apt install ca-certificates apt-transport-https
wget -q https://packages.sury.org/php/apt.gpg -O- | sudo apt-key add -
echo "deb https://packages.sury.org/php/ stretch main" | sudo tee /etc/apt/sources.list.d/php.list
apt-get update

dpkg -l | grep php | tee packages.txt

apt install libapache2-mod-php7.2 php-common php7.2 php7.2-cli php7.2-common  php7.2-curl php7.2-gd php7.2-intl php7.2-json php7.2-ldap php7.2-mbstring php7.2-mysql php7.2-opcache php7.2-pspell php7.2-readline php7.2-soap php7.2-xml  php7.2-xmlrpc php7.2-zip php7.2-fpm


a2enconf php7.2
a2enmod php7.2

sudo apt purge php7.0*

firewall update

https://www.ithome.com.tw/news/134415

upgrade firmware