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sudo yum install epel-release sudo yum install fail2ban sudo systemctl enable fail2bansudo nano...

sudo dnf upgrade --refresh sudo dnf system-upgrade download --releasever=42 If some of your...

zpool 状态显示磁盘信息和容量 ZPOOL_SCRIPTS_AS_ROOT=1 zpool status -c vendor,model,size zpool iostat 显示磁盘...

netsh interface portproxy add v4tov4 listenport=22 listenaddress=0.0.0.0 connectport=22 connectad...

安装tuned dnf install tuned 启用latency-performance配置文件 tuned-adm profile latency-performance  

openssl s_client echo QUIT | openssl s_client -connect hsderps6cd1.cloud.sccncd.com:443 -showcer...

dig -6 TXT +short o-o.myaddr.l.google.com @ns1.google.com

登录时自动运行ssh-agent 添加 eval $(ssh-agent -s) 到 .bashrc 退出登录时自动退出ssh-agent 添加 trap 'eval $(ssh-agen...

cat /dev/urandom |tr -dc 'a-zA-Z0-9'|fold -w 20 |head -n 10

# 允许 magic SysRq 功能 echo 1 > /proc/sys/kernel/sysrq # 立即重启 echo b > /proc/sysrq-trigger