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Archlinux_en

ArchLinux ; Installation #2 Disk Partitioning

1. Partitioning the disk on which Arch Linux is installedThis time, use gdisk command in UEFI mode and GPT for the partition table.Check current disk information# lsblkNAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTSloop0 7:0 0 693.5M 1 loop /run/archiso/airootfssda 8:0 0 20G 0 disksr0 11:0 1 813.3M 0 rom /run/archiso/bootmntIn the above case, a 20 GB virtual HDD was created on VmwareWorkstion, so the SIZE of the sda is set to 20 GB.The sda in the NAME line is the name of the device that represents the entire disk and will be partitioned to this sda.This time, create an EFI partition and a partition for Arch Linux, but not a swap partition.In the past, a partition was created for swap and allocated as swap, but now a "swap file" can be used without a swap partition.A "swap file" is a method of creating a single file of any size for swap and using that area as swap, which can be created, deleted, and resized.
Archlinux_en

ArchLinux ;  Installation #1 Image Download and Preparation

Arch Linux Arch Linux is a Linux distribution.Unlike other distributions, which often perform graphical installation, Arch Linux uses a CUI command line screen to perform the installation process.However, since there is no need to install unnecessary packages, you can create your own environment that is highly flexible, lightweight, and compact.Arch Linux does not have the "version" concept of other distributions.The installation ISO contains only the commands used during the installation process, and the ISO file is updated monthly to ensure that it is always up-to-date.Forte・Arch Linux does not have the "version" concept that other distributions have・The installation ISO image contains only the commands used during the installation process, and the ISO file is updated monthly.・Ability to work with the latest kernel and commands for installation・Arch Linux allows you to select and install only what you use, so no extra packages are installed.・Packages are always updated to be nearly up-to-date, so you can use the latest Linux kernel, the latest versions of software, and so on.・Arch Linux's proprietary package manager, pacman (CUI), takes significantly longer to install packages than other distributions.
Slackware 15.0_en

Slackware15.0 ; WordPress Download and Installation

Database for WordPressCreate user, password and database for...
Slackware 15.0_en

Slackware15.0 ; SSH connect with public key

Creation of public and private key pairsCreate a public/private key pair for a user connecting to a Linux server using OpenSSH.Use ssh-keygen to create the key pair.The creation of a public/private key pair is performed with remote login user privileges.If you do not specify the destination and file name, id_ed25519 and id_ed25519.pub will be created in /home/(user name)/.ssh/. On the way, enter the password for the key.
Slackware 15.0_en

Slackware15.0 ; Various settings after OS installation #2

SSH Remote ConnectionConfigure the default settings to increase the security of ssh connections.1. SSH service configuration file modificationModify the configuration file to change the SSH service settings.The SSH service configuration file is "/etc/ssh/sshd_config".
Slackware 15.0_en

Slackware15.0 ; Various settings after OS installation #I

Adding General UsersRoot is a privileged user and should not normally be logged in as root.You must create your own account separate from root. Create a login user with the following command# useradd huong# passwd huongNew password:Retype new password:passwd: password updated successfullyCreate user's home directorySetting up the use of the sudo commandTo grant sudo privileges to the created general user, use the command "visudo" as root and edit the file "sudoers".This time, "users belonging to the wheel group can use it; they will not be asked for their password when sudoing." Use the
CentOS7.9_en

CentOS7.9 ; SNORT2 , Tripwire , Chkrootkit

SNORT2 Install1. Advance preparation①Install necessary softw...
CentOS7.9_en

CentOS7.9 ; Mail Server, Clamav, SpamAssassin

Clamav ( anti-virus software ) 1.Clam AntiVirus Install2.Edi...
CentOS9_en

CentOS Stream9 ; Clamav , Mail Server

1. Clamav1.1 Clam AntiVirus Install1.2 Edit Clam AntiVirus c...
CentOS9_en

CentOS Stream9 ; WEB Server(Apache2)

1.Apache2 installation and virtual host configuration1.1 Apa...
CentOS9_en

CentOS Stream9 ; FTP , Samba Server

1.FTP Server1. 1 vsftpd Install1.2 vsftpd settingSave the un...
CentOS9_en

CentOS Stream9 ; SSH , Firewalld , NTP

1.Setting up remote connection via SSHSSH is a service for c...
FreeBSD14.2_en

FreeBSD14.2 ; Mail Server(Postfix,Dovecot),SSL/TLS

1. Obtaining a certificate for the mail serverObtain a certificate for the mail server to convert the mail server to SSL/TLS.Use the certbot that was used when the web server was converted to SSL.Stop the web server and execute the following command
FreeBSD14.2_en

FreeBSD14.2 ; Web Server SSL、Webmin

1. Web server (Apache) SSL conversionThe ports can be further updated with FreeBSD's periodic job settings.Install certbot via pkg, and include a plugin for apache to update in webroot mode.1.1 Installing the Certbot tool for Let's EncryptRun the following command to install the Certbot package and the Apache HTTP plug-in
FreeBSD13.3_en

FreeBSD13.3 ; Postfix ClamAV + Amavis + SpamassAssin

Install ClamAV on FreeBSD 13 and link it with Amavis against Postfix.ClamAV is anti-virus software.We will proceed on the assumption that you have already implemented Postfix.Before proceeding, update the Ports Collection.2. AmavisInstall Amavis, which links ClamAV and Postfix3. Anti-Spam with SpamAssassin3.1 SpamAssassin InstallIf you did not select spamassassin as an option when you installed Amavis, install it as follows