How to reset CentOS 7 root password using console
If you have lost the root password of your CentOS 7 system and have access to the console directly or
How to change home directory of a linux user
You can modify a user’s home directory using usermod command in Linux. The syntax for the usermod command is Example
How to Auto Restart ElasticSearh service on failure
If ElasticSearh service crash on your server, you can auto restart it by modifying systemd service file. This will open
Auto start Next.js with supervisor
I want to start Next.js development server on my computer when it starts. Usually, this is done using pm2, I
Cron Job fails with Error Message “(getpwnam() failed): No such file or directory”
On a CentOS server, cronjob did not work. Checking the log file found the following error message in /var/log/cron The
How to get list of User-Agent from access log
I wanted to block bots from accessing a website. For this, I need to generate a list of all browser
How to reset root password on Hetzner Dedicated Server
If you forget the root password of a Hetzner dedicated server, you need to boot the server into rescue mode,
rsyslog Unsafe symlinks encountered in /var/log, refusing
When updating packages on an Ubuntu server, I got the error “Unsafe symlinks encountered in /var/log, refusing.”. This is due
How to Split large CSV file into smaller files
To split a large CSV file into smaller parts, you can use the split command The above command will split
CentOS Error checking for OpenSSL library … not found
When installing Nginx from source on a CentOS 7 server, I got the following error To fix the error, install
Linux Disk Quota
XFS quota not working RAID 1 To check disk quota for a Linux user, run Sample
How to find Operating System of a remote computer using nmap?
Nmap is a network exploration and security auditing tool. It can be used to identify hosts and services on a