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nuy

Ubuntu18.04_en

Ubuntu Server 18.04 : FTP Serve , NTP Server

1.Install the FTP server vsftpd① Install# apt install vsftpd② Allow PORT21 to be used by FTP in UFW(firewall)# ufw allow ftp# ufw reload③ Edit the configuration file (vsftpd.conf)
2020.01.29
Ubuntu18.04_en
Ubuntu18.04_en

Ubuntu Server : 18.04 Initial Setup

1. Set the root password and use the SU command$  passwd rootpassword for ← Current user's passwordEnter new UNIX password: ← Enter the root password to be set.Retype new UNIX password: ← Re-enter the same passwordpasswd: password updated successfully
2020.01.29
Ubuntu18.04_en
LinuxTips(RedHat)_en

Display various information about the CPU

●Display the CPU information installed on the PC.To display the CPU information installed in the PC, refer to the "/proc/cpuinfo" file.This information is used to know the CPU load for top command, etc.
2020.09.24
LinuxTips(RedHat)_ensystems-management
LinuxTips(RedHat)_en

Configuring the default gateway (router)

●Confirmation of the current default gatewayExecute the "route -n" command. "-n" is an option to display the hostname as IP.●Remove the default gatewaySet "del" as the argument of the route command, and set the IP address of the default gateway device (192.168.11.1) that you want to delete after "default gw".●Setting up a new default gatewaySet "add" as the argument of the route command, and set the IP address (192.168.11.2) of the default gateway device you want to set after "default gw".
2020.09.26
LinuxTips(RedHat)_enNetwork Management
Ubuntu18.04_en

Ubuntu Server 18.04 : Obtain an SSL certificate (Let's Encrypt).

Obtaining a certificate with Let's Encrypt①Enable mod_ssl# a2enmod ssl②Install Git.# apt-get install -y git③Install the certificate acquisition tool# cd /usr/local/# git clone https://github.com/certbot/certbot
2020.02.03
Ubuntu18.04_en