Useful chaining operators in Linux
Chaining operator is something which helps to run multiple commands at once like we execute a script and task completes …
Category: Linux
CSF : Setup email alert on excess process usage
It’s very useful to have csf/lfd (lfd is a component of csf) email you alerts when something happens on your …
How to disable DNS recursive queries in bind
DNS recursive error !! If you check your site DNS parameters with intodns.com and see error with DNS Recursive Queries …
20 Linux Server Hardening Security Tips 1/2
Securing your Linux server is important to protect your data, intellectual property, and time, from the hands of crackers (hackers). …
Using iotop command to check I/O and swap
iotop command displays columns for the I/O bandwidth read and written by each process/thread during the sampling period. It also …
How to change SSH port on CentOS 7
To change the default SSH port, the first thing you want to do is backup the current SSH configuration file …