linux httpd备忘

1.查看dos攻击,看一下SYN_RECV是否很高
    netstat -an|grep -i "192.168.32.24:80"| awk '{print $6}' | sort | uniq -c | sort -n
解决方法:echo 1 > /proc/sys/net/ipv4/tcp_syncookies
2.ulimit -a查看文件数,解决java.net.SocketException: Too many open files异常

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转载自13594135.iteye.com/blog/1320989