Programuotojo užrašai

sudo iptables -A INPUT -i lo -p tcp --dport 3306 -j ACCEPT sudo iptables -A INPUT -p tcp --dport 3306 -j DROP 

 grep "sshd.*Accepted" /var/log/auth.log | awk '{print $11}' | sort | uniq  grep "sshd.*Accepted" /var/log/secur...

function validateCompanyRegistrationNumber ( $number ) { if ( strlen ( $number ) != 9 ) { return false ; } $weights = [ 1 , 2...

 https://www.digitalocean.com/community/tutorials/how-to-create-hot-backups-of-mysql-databases-with-percona-xtrabackup-on-centos-7  https://...

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show variables like "%max_connections%";show global status  like "%Max_used%";show status like "%thread%"; 

  https://www.percona.com/blog/2016/05/03/best-practices-for-configuring-optimal-mysql-memory-usage/