Linux as the Backbone of Kubernetes and Hadoop Ecosystems

 Execute commands simultaneously on multiple server using PSSH/CLUSTER  you can clieck here  parallel-ssh

Log files are the most valuable tools available for Linux system security. The logrotate program is used to provide the administrator with an up-to-date record of events taking place on the system. The logrotate utility may also be used to back up log files, so copies may be used to establish patterns for system use. logrotate the logrotate program is a log file manager. It is used to regularly cycle (or rotate) log files by removing the oldest ones from your system and creating new log files. It may be used to rotate based on the age of the file or the file’s size, and usually runs automatically through the cron utility. The logrotate program may also be used to compress log files and to configure e-mail to users when they are rotated. Configuration File :-  Files /var/lib/logrotate.status   >> this file update  status of recent execution of  logrotation. root@puppet:~/sadeek/big# ls -l /var/lib/logrotate/status -rw-r--r-- 1 root root 2030 Feb...