利用tcpdump抓取mysql sql语句

1.

#!/bin/bash
#this script used montor mysql network traffic.echo sql
tcpdump -i eth0 -s 0 -l -w - dst port 3306 | strings | perl -e '
while(<>) { chomp; next if /^[^ ]+[ ]*$/;
    if(/^(SELECT|UPDATE|DELETE|INSERT|SET|COMMIT|ROLLBACK|CREATE|DROP|ALTER|CALL)/i)
    {
        if (defined $q) { print "$q "; }
        $q=$_;
    } else {
        $_ =~ s/^[ ]+//; $q.=" $_";
    }
}'

2. tcpflow -c -p -i eth0 dst port 3306 | grep -i -E "select|insert|update|delete|replace" | sed 's%(.*)([.]{4})(.*)%3%'