Protected: Bash scripts to backup all databases in a MySQL server with the option to exclude some databases.

Listing sizes in AWS S3 Buckets Getting the whole bucket size aws s3 ls s3://$BUCKETNAME/ –recursive –human-readable –summarize | tail -n2 Tail is used because otherwise all files will be printed on screen (but you may want that for some reason). Getting the size of a specific directory/file You just need to add the path…

About the TLS Extension Server Name Indication (SNI) When website administrators and IT personnel are restricted to use a single SSL Certificate per socket (combination of IP Address and socket) it can cost a lot of money. This restriction causes them to buy multiple IP addresses for regular https websites from their domain host or…

AWS doesn’t grant root access by default to EC2 instances. This is an important security best practise. Users are supposed to open a ssh connection using the secure key/pair to login as ec2-user. Users are supposed to use the sudo command as ec2-user to obtain elevated privileges. Problems arise with a number of software packages…

5  0   *   *   *   /bin/find /tmp/ -type f -print0 | xargs -0 rm

Find Files and Directories in CentOS The find command helps you locate files and folders on your hard disk. There are additional parameters that can be passed to the command that help you find files and folders in multiple ways. Find by filename, modified time, find files and folders. Basic syntax find /path/to/search -option1 -option2…