“紀錄一下 如何將 RPM依賴包 下載到本地保存” 通過 yum 命令的 Downloadonly 插件下載 RPM 軟件包及其所有依賴包安裝工具包yum install yum-plugin-downloadonly yum-utils

下載 certbot 腳本 wget https://raw.githubusercontent.com/certbot/certbot/7f0fa18c570942238a7de73ed9

“CentOS ERROR : bring up interface ip address is already in use for device eth0 解決方案” 重啟網路報錯Bringing up interface eth0:

dnf --disablerepo '*' --enablerepo=extras swap centos-linux-repos centos-stream-repos dnf distro-sync

“Hinet yum源 紀錄” # CentOS-Base.repo # # The mirror system uses the connecting IP address of the client and the # update

“如何更改 CentOS 系統語言” 更改系統引數 vim /etc/locale.conf # CentOS 7 LANG=“zh_CN.UTF-8” source /etc/locale.conf --- vim /

“紀錄一下如何更改 Linux 系統目錄顏色” 語法: yum install coreutils --allowerasing && or dnf install scp DIR_COLORS root@172

“(將home磁區分割為50G並將其餘空間擴充到根目錄底下)” 安裝xfsdump工具yum install xfsdump -y 備份/home磁區的掛載內容 (一路按ENTER)xfsdump -f /hom

“(紀錄一下 Centos 安装 speedtest-cli 網速測試)” wget https://raw.githubusercontent.com/sivel/speedtest-cli&

“使用 ‘sed’ 更改 ‘yum 源’ “ sed -i -e "s/^mirrorlist=http:\/\/mirrorlist.centos.org/#mirrorli