The common philosophy with respect to system memory is that unused memory is wasted. Most operating systems, including both Windows and Linux maintain what’s called a memory “cache.” Technically this memory space is in use, however it is designed to be freed immediately if applications actually need the memory.
How to Install Updates via Command Line on Ubuntu
If you are running the server version of Ubuntu or choose to not use the GUI, you can upgrade Ubuntu to a newly released version through the command line apt-get utility.
Check that there is a new release available.
Make sure your current version isn’t too old to upgrade through packages.
How Do I Disable iptables Firewall?
Login as root user on your dedicated or cloud server.
Enter the following three commands to disable firewall.
Change Hostname CentOS / Ubuntu
Hostname change procedure on CentOS / Ubuntu
Open the terminal or login to the remote server using ssh client. Edit /etc/sysconfig/network file, enter:
# vi /etc/sysconfig/network
Install VSFTPD FTP Server for Ubuntu
Simply type the following command as a superuser (root) to install vsftp server:
# sudo apt-get install vsftpd
Once vsftpd is installed, you can modify the configuration.
The default configuration file is /etc/vsftpd.conf file.
