一、Installing Rocky Linux 9

https://docs.rockylinux.org/guides/installation/

二、Things to do after install

1.Install Xrdp on Rocky Linux 9

sudo dnf install epel-release
sudo dnf update
sudo dnf install xrdp
sudo systemctl enable --now xrdp
sudo firewall-cmd --permanent --add-port=3389/tcp
sudo firewall-cmd --reload

xrdp status check
sudo systemctl status xrdp

2.Install array30 inputmethod

dnf install ibus ibus-table-chinese-array ibus-libzhuyin -y

3.gnome 擴充套件

4.snmpd

yum install net-snmp net-snmp-utils
vi /etc/snmp/snmpd.conf

---
rocommunity public
syslocation LIB3F-CCenter

#Distro Detection
extend .1.3.6.1.4.1.2021.7890.1 distro /usr/bin/distro


#Hardware Detection (uncomment to enable)
extend .1.3.6.1.4.1.2021.7890.2 hardware '/bin/cat /sys/devices/virtual/dmi/id/product_name'
extend .1.3.6.1.4.1.2021.7890.3 manufacturer '/bin/cat /sys/devices/virtual/dmi/id/sys_vendor'
#extend .1.3.6.1.4.1.2021.7890.4 serial '/bin/cat /sys/devices/virtual/dmi/id/product_serial'
---

curl -o /usr/bin/distro https://raw.githubusercontent.com/librenms/librenms-agent/master/snmp/distro
chmod +x /usr/bin/distro
/usr/bin/distro
systemctl restart snmpd.service
systemctl enable snmpd.service
firewall-cmd --add-service snmp --permanent
firewall-cmd --reload

5.安裝 Logwatch

dnf install logwatch
vi /etc/logwatch/conf/logwatch.conf
vi /usr/share/logwatch/default.conf/logwatch.conf
logwatch
/etc/cron.daily/0logwatch
dnf install postfix
service postfix restart
systemctl enable postfix

6.install kvm on rocky linux

https://linuxways.net/red-hat/how-to-install-kvm-on-rocky-linux-almalinux/

1.cat /proc/cpuinfo | egrep "vmx|svm"

2.lsmod | grep kvm

3.dnf install qemu-kvm qemu-img libvirt virt-manager virt-install virt-viewer libvirt-client

4.systemctl start libvirtd

5.systemctl enable libvirtd

7.Use UUID To Mount Partitions.

https://www.cyberciti.biz/faq/linux-finding-using-uuids-to-update-fstab/

1.sudo blkid
2.vi /etc/fstab

/dev/sdb1    /home    xfs    defaults    0 0
UUID=22ad2785-f2fe-446d-9226-d9dae947235f /home auto defaults 0 0

8.How to Start, Stop or Restart Network Services on Rocky Linux 8

1.Use of NetworkManager service
2.Use of nmcli tool
3.sudo nmtui

sudo systemctl start NetworkManager
sudo systemctl stop NetworkManager
sudo systemctl restart NetworkManager

https://vitux.com/how-to-start-stop-or-restart-network-services-on-rocky-linux/

三、Creating a Network Bridge

https://www.tecmint.com/create-network-bridge-in-rhel-centos-8/

1.新增橋接

2.KVM 中使用 橋接模式

3.brctl 指令

[root@r380f4-2 network-scripts]# brctl show
bridge name     bridge id               STP enabled     interfaces
br0             8000.a4bf0164b2b3       no              eno2
                                                        vnet1
                                                        vnet2
                                                        vnet3
                                                        vnet5

br1             8000.a4bf0164b2b2       no              eno1
                                                        vnet6
virbr0          8000.525400e0185d       yes

4.Creating a Network Bridge Using nm-connection-editor Application

nm-connection-editor