查看磁盤 df -h , du -hs /var
tcpdump port 80
vmstat -n 2
squidclient -p3128 cache_object://localhost/info
查看連接命令???????? netstat -an|grep EST|awk "{print $3}"|awk -F":" "{print $1}"|sort|uniq -c|sort???
封禁連入的ip????????? iptables -A INPUT -p tcp --dport 80 -s xxx.xxx.xxx.xxx -j DROP
檢查named錯誤的命令???? ?grep named /var/log/messages | tail -n 20
跟蹤dns查詢 dig @202.103.0.117 www.hssygz.com
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+trace