-bash: warning: setlocale: LC_CTYPE: cannot change locale (UTF-8): No such file or directory
You deploy a new server and get the following message: > -bash: warning: setlocale: LC_CTYPE: cannot change locale (UTF-8): No such file or directory How to
Operating Systems
How to protect a Linux system from brute force attacks
The most common type of attack on Linux servers are performed by script kiddies. They have computers running that continuously scans the internet to find
How to use Tar and Unzip on Linux to compress and decompress files
Tar and Zip are both file compression formats that you’ll encounter. You can use built-in utilities in Linux to compress and decompress / expand these
Where are Linux log files stored?
The key to solving Linux related server problems is to know where the log files are stored and to be able to get to them
How can I find out my public IP address using the command line?
dig +short myip.opendns.com @resolver1.opendns.com Reference: https://www.cyberciti.biz/faq/how-to-find-my-public-ip-address-from-command-line-on-a-linux/
How to sort files in Linux in date order
Use the following flags with ‘ls’ to control the directory date sort order: ls -lat -l is for long style -a is for all (including
How to turn off or on a Linux service from starting up from the command line
Use this command: # chkconfig service_name on or off
Bind fails but no log file that show anything
Your named server suddenly stops working. You go into a mild panic because restarting the service doesn’t show you where it’s failing. It’s as if
Bind fails to start open: /etc/named.conf: permission denied
The log file shows: Mar 14 10:49:10 hostname named[30884]: using 4 UDP listeners per interface Mar 14 10:49:10 hostname named[30884]: using up to 21000 sockets Mar 14
How to vacuum journalctl
How to free up space if your Linux journal (combined log file) is taking up a lot of space On some systems /var/log might be