A curated list of AWS resources to prepare for the AWS Certifications
A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.
| #! /bin/bash | |
| cat /var/log/secure|awk '/Failed/{print $(NF-3)}'|sort|uniq -c|awk '{print $2"="$1;}' > /usr/local/bin/black.list | |
| for i in `cat /usr/local/bin/black.list` | |
| do | |
| IP=`echo $i |awk -F= '{print $1}'` | |
| NUM=`echo $i|awk -F= '{print $2}'` | |
| if [ ${#NUM} -gt 1 ]; then | |
| grep $IP /etc/hosts.deny > /dev/null | |
| if [ $? -gt 0 ];then | |
| echo "sshd:$IP:deny" >> /etc/hosts.deny |
