2023 | Page 5 | Linux Server Construction

RockyLinux8.8 : Anti-virus(Clamav) , Mail Server

Clamav (anti-virus software)Install1.Clam AntiVirus InstallMail Server Install1. Postfix1.1 InstallInstall Postfix and build an SMTP serverMail Server : Postfix + Clamav + Amavisd+SpamAssassin1.Real-time scanning of e-mails①Amavisd ,Clamav Server install

2023.10.25

Rocly Linux8.8_en

RockyLinux8.8 : SSL Certificate Acquisition( Let's Encrypt ) , Apache SSL , Mail SSL/TLS

1.SSL Certificate Acquisition ( Let's Encrypt )Install the latest open ssl# dnf install openssl-devel1.1 advance preparation1.Package management system Snappy installationSince the SSL certificate issuing tool "certbot" of Let's Encrypt is recommended to be installed using "snap" after 2021, install Snapd first.(Can also be installed the traditional way with dnf or yum)2. Converting Apache to httpsInstall the following# dnf -y install mod_ssl3. SSL/TLS (Let's Encrypt) settings on the mail server3.1 Obtaining a certificate for the mail serverObtain a certificate for the mail server, but it cannot be obtained in the same way as above, so the following with the "--standalone" option fails.

2023.10.25

Rocly Linux8.8_en

RockyLinux8.8 : MySQL8 , WordPress

Mysql8 Install＃dnf module -y install mysql:8.0charset.cnf Create a new one with the following contentsWordPress Install1. Create database for Word PressAs an example, assume database [wp_db] database user [wp_user] password [?W123456]

2023.10.25

Rocly Linux8.8_en

RockyLinux8.8 : Snort3+Snortsnarf , Chkrootkit Install

Snort3+Snortsnarf InstallImplement Snort, a network-based IDS, in the unauthorized access detection system.SnortSnarf will also be installed to enable the unauthorized access logs extracted by Snort to be checked on a Web browser.RockyLinux8 does not have a Snort3 repository, so build, compile and install Snort3 from source codeAdvance preparation①Install required build tools and librariesInstall the EPEL repository and enable the Powertools repository.chkrootkit①Download and install chkrootkit# cd /usr/local/src# wget ftp://ftp.chkrootkit.org/pub/seg/pac/chkrootkit.tar.gz# tar xvf chkrootkit.tar.gz➁Create /root/bin directory and move chkrootkit command to that directory# mkdir -p /root/bin# mv chkrootkit-0.58b/chkrootkit /root/bin➂Check chkrootkit.

2023.10.26

Rocly Linux8.8_en

RockyLinux8.8 : Tripwire , Logwatch , disk usage check script

Tripwire1.Install# dnf install -y tripwire2..Passphrase settingSet site passphrase and local passphraseLogwatch①Install# dnf install logwatch -y②Edit configuration fileIntroduce disk usage check script3.1 Script Creation# cd /var/www/system# vi disk_capacity_check.shContents of disk_capacity_check.sh

2023.10.27

Rocly Linux8.8_en

Debian12.1 : OS Install

1.Debian12 OverviewIn this article, we will explain how to build a server with Debian, the basis of the user-friendly Linux distribution UBUNTU.The latest is Debian 12.0 (codenamed "bookworm"), released on June 10, 20232.Download Debian installation imageDebian12 download site https://www.debian.org/Access the above official website and download "debian-12.0.0-amd64-netinst.iso." which is convenient for setup in an environment connected to the Internet.（Fits on a single CD）NETINST allows you to download and install the necessary packages from the Internet, so you can use a smaller installer than a full installer.Click through the following screens in order.

2023.06.15

Debian12.1_en

ArchLinux : MariaDB , WprdPress

1. MariaDB1.1 MariaDB Installation①Install# pacman -S mariadb➁Configure MariaDB# mysql_install_db --user=mysql --basedir=/usr --datadir=/var/lib/mysql1.2 phpMyAdmin InstallationInstalled phpMyAdmin and configured it to operate MariaDB via web browser①Install2. Wordpress Install2.1 Required library installation# pacman -S php-gd2.2 Edit php.ini

2023.12.22

Archlinux_en

ArchLinux : Web server SSL ( Let's Encrypt )

1.Obtain SSL Certificate ( Let's Encrypt )Install the latest open ssl# pacman -S openssl1.1 advance preparation1.Package management system Snappy installation

2023.12.20

Archlinux_en

ArchLinux : Clamav ( Anti-virus software ) , Mail server

1. Install clamav ( anti-virus software )1.1 Clam AntiVirus Installation# pacman -S clamav1.2 Virus definition file update settings# vim /etc/clamav/freshclam.confLine 76Insert "#" at the beginning of the line "DatabaseMirror database.clamav.net",Add "DatabaseMirror db.jp.clamav.net#DatabaseMirror database.clamav.netDatabaseMirror db.jp.clamav.net2. Mail Server (Postfix)2.1 Installing PostfixInstall Postfix and build an SMTP server# pacman -S postfix3. Mail Server(Dovecot)3.1 Dovecot Installation# pacman -S dovecot3.2 Edit dovecot.conf fileMail Server : Postfix + Clamav + clamav-milter+SpamAssassin1. Real-time scanning of email➁clamav-milter configuration

2023.12.17

Archlinux_en

ArchLinux : WEB Server(Apache2)

1. Apache2 installation and virtual host configuration1.1 Apache2 Installation①Install httpd# pacman -S apacheVersion Check# httpd -vServer version: Apache/2.4.58 (Unix)Server built: Oct 25 2023 18:28:291.2 Apache Configuration①Edit httpd.conf file2. Confirmation of CGI Script Usage①CGI availability check3. PHP installation and configuration3.1 PHP8 installation①Install# pacman -S php php-apache php-fpm②Version Check

2023.12.16

Archlinux_en

ArchLinux : FTP Server , File Server (SAMBA)

1.FTP Server1. 1 vsftpd installation# pacman -S vsftpd1.2 vsftpd configuration①Editing Configuration Files2. vsftpd SSL/TLSConfigure Vsftpd to use SSL/TLS2.1 Create self-signed certificatesThis step is not necessary if you are using a trusted, legitimate certificate such as Let's Encrypt.The information you enter is meaningless and will only be used for encryption.

2023.12.16

Archlinux_en

ArchLinux : SSH , Firewall (ufw)

1. SSH Service Security SettingsChange the configuration file for the SSH service, which is "/etc/ssh/sshd_config".In this case, we will change the default SSH port 22 to 2244.Change /etc/ssh/sshd_config as follows2. Firewall (ufw)2.1 Install# pacman -S ufw# systemctl status ufw○ ufw.service - CLI Netfilter Manager Loaded: loaded (/usr/lib/systemd/system/ufw.service; disabled; preset: dis> Active: inactive (dead)You can confirm that the ufw service is stopped by displaying "Active: inactive (dead)"

2023.12.16

Archlinux_en

ArchLinux : Initial settings after OS installation

1. User Account CreationAdd user (huong) to wheel group and create home directory# useradd -m -G wheel huongUser (huong) password setting# passwd huongNew password:Retype new password:passwd: password updated successfullyGrant sudo privileges to the added huong user2 . Configuration of the text editor vimVim was already installed during the Arch Linux installation, so this is just a configuration file.If you are installing vim3. Network Connections■ If using systemd-resolved, create /etc/resolv.conf as a link file# ln -sf /run/systemd/resolve/stub-resolv.conf /etc/resolv.conf■ If systemd-resolved is not used

2023.12.16

Archlinux_en

ArchLinux : Installation #4 How to install with btrfs file system

For installation with ext4 file system, please refer to the following pagehttps://korodes.com/arch_en_02/https://korodes.com/arch_en_03/1.Creating partitions1.1 Confirmation of installation deviceCheck the target device with the lsblk command

2023.12.16

Archlinux_en

ArchLinux : Installation #3 Initial settings during installation

Initial setup within the installed systemTo enter the installed system, use the arch-chroot command.arch-chroot is a script for Arch Linux installation that mounts the system so that the specified path is the root "/".However, after this, only commands in the destination ArchLinux can be used. Commands in the installation media cannot be used.For example, to install a package, use pacman instead of pacstrap.Enter the installed system (/mnt becomes /)

2023.12.16

Archlinux_en