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	<title>Almalinux9.1_en | Linux Server Construction</title>
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	<link>https://korodes.com</link>
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	<lastBuildDate>Sat, 08 Mar 2025 06:39:00 +0000</lastBuildDate>
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	<url>https://korodes.com/wp-content/uploads/2020/01/cropped-profile-32x32.jpg</url>
	<title>Almalinux9.1_en | Linux Server Construction</title>
	<link>https://korodes.com</link>
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	<item>
		<title>AlmaLinux 9.1 : FTP Server , Samba FileServer  Install</title>
		<link>https://korodes.com/en/almalinux9-1_en_05/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Mon, 16 Jan 2023 13:02:39 +0000</pubDate>
				<category><![CDATA[Almalinux9.1_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=11017</guid>

					<description><![CDATA[1.FTP Server
1. 1 Vsftpd Install
# dnf -y install vsftpd
1.2 Configure Vsftpd

Save the unedited vsftpd.conf with .bak
3. File server installation with Samba
Build a file server with access rights that requires user authentication with Samba.
Installation Procedure
①Create shared folders with access rights that require user authentication
②Accessible group creation
③Creation of users belonging to accessible groups
④Configuration File Editing]]></description>
		
		
		
			</item>
		<item>
		<title>AlmaLinux 9.1 :  Logwatch , DiCe , Disk Usage Check Script</title>
		<link>https://korodes.com/en/almalinux9-1_en_11/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 04 Jan 2023 12:34:14 +0000</pubDate>
				<category><![CDATA[Almalinux9.1_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=11083</guid>

					<description><![CDATA[1. Logwatch

①Install

# dnf install logwatch
②Edit configuration file
2. DiCE

Whenever the global IP changes, which happens when the network is disconnected or the router is disconnected and rebooted, the dynamic DNS must be accessed to inform the user that the global IP has changed. DiCE does this automatically!
3.Introduce disk usage check script
3.1 Script Creation
# cd /var/www/system
# vi disk_capacity_check.sh]]></description>
		
		
		
			</item>
		<item>
		<title>AlmaLinux 9.1 : Suricata , Tripwire , Chkrootkit</title>
		<link>https://korodes.com/en/almalinux9-1_en_08/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 04 Jan 2023 12:32:22 +0000</pubDate>
				<category><![CDATA[Almalinux9.1_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=11045</guid>

					<description><![CDATA[Suricata

SURICATA IDS/IPS is an open source IDS that monitors communications on the network and detects suspicious traffic.
The basic mechanism is signature-based, so it can detect predefined unauthorized communications. Suricata is also characterized by its ability to provide protection as well as detection.

1.advance preparation

①Activate the EPEL Repository

# dnf -y install epel-release
Tripwire
1.Download and installation
# cd /usr/local/src
# wget https://rpmfind.net/linux/epel/9/Everything/x86_64/Packages/t/tripwire-2.4.3.7-13.el9.x86_64.rpm
# rpm -Uvh tripwire-2.4.3.7-13.el9.x86_64.rpm
Chkrootkit

①Download and install chkrootkit

# cd /usr/local/src
# wget https://launchpad.net/chkrootkit/main/0.55/+download/chkrootkit-0.55.tar.gz
# tar xvf chkrootkit-0.55.tar.gz]]></description>
		
		
		
			</item>
		<item>
		<title>AlmaLinux 9.1 : Mysql8 , WordPress Install</title>
		<link>https://korodes.com/en/almalinux9-1_en_09/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 04 Jan 2023 12:31:30 +0000</pubDate>
				<category><![CDATA[Almalinux9.1_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=11060</guid>

					<description><![CDATA[Mysql8 Install
＃ dnf -y install mysql-server

charset.cnf   Create a new one with the following contents
WordPress Install
1. Create database for Word Press

As an example, assume database [wp_db] database user [wp_user] password [?W123456]]]></description>
		
		
		
			</item>
		<item>
		<title>AlmaLinux 9.1 : SSL Certificate Acquisition( Let&#039;s Encrypt ) , Apache SSL , Mail  SSL/TLS</title>
		<link>https://korodes.com/en/almalinux9-1_en_10/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 04 Jan 2023 12:20:29 +0000</pubDate>
				<category><![CDATA[Almalinux9.1_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=11066</guid>

					<description><![CDATA[1.Obtain an SSL certificate ( Let's Encrypt )

Install the latest open ssl

# dnf install openssl-devel
1.1 advance preparation

1.Package management system Snappy installed
Since 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 https

Install the following just in case

# dnf -y install mod_ssl
3. SSL/TLS (Let's Encrypt) settings on the mail server
3.1 Obtaining a certificate for the mail server

Obtain 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.]]></description>
		
		
		
			</item>
		<item>
		<title>AlmaLinux 9.1 : Anti-virus(Clamav) , Mail Server</title>
		<link>https://korodes.com/en/almalinux9-1_en_07/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 04 Jan 2023 12:19:42 +0000</pubDate>
				<category><![CDATA[Almalinux9.1_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=11031</guid>

					<description><![CDATA[clamav (anti-virus software] Install

1.Clam AntiVirus install

# dnf -y install clamav clamd clamav-update

2.Clam AntiVirus  Configuration File Edit
Mail Server Install
1. Postfix

1.1 Install
Install Postfix and build an SMTP server]]></description>
		
		
		
			</item>
		<item>
		<title>AlmaLinux 9.1 : WEB Server(Apache2) Install &#038; Virtual Hosts</title>
		<link>https://korodes.com/en/almalinux9-1_en_06/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 04 Jan 2023 12:19:10 +0000</pubDate>
				<category><![CDATA[Almalinux9.1_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=11028</guid>

					<description><![CDATA[1.Apache2 Install , Virtual Host Configuration
1.1 Apache2 install

①httpd install

# dnf -y install httpd
1.3 Virtual Host Settings

Assign and configure the domain name [alma.korodes.com] to the document root [/var/www/html/alam.korodes.com] directory for virtual host operation
2. Use of CGI Scripts

①CGI availability check
3. PHP installation and configuration
1.PHP8 Install
4. Digest authentication with Apache2

Since Basic Authentication, a well-known authentication authorization method for http, sends authentication information in plain text, there is a risk of ID and password leakage if the packet is intercepted.
On the other hand, Digest Authentication encrypts and transmits authentication informa]]></description>
		
		
		
			</item>
		<item>
		<title>AlmaLinux 9.1 :  Authenticated SSH connection with key pair</title>
		<link>https://korodes.com/en/almalinux9-1_en_04/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 23 Nov 2022 07:44:32 +0000</pubDate>
				<category><![CDATA[Almalinux9.1_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=11000</guid>

					<description><![CDATA[SSH connection with authentication using public key cryptography
Create public and private key pairs

Create 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 must be done as a user with remote login privileges.
If you do not specify the destination and file name, id_ed25519 and id_eed25519.pub will be created in /home/(user name)/.ssh/. On the way, enter the password for the key.]]></description>
		
		
		
			</item>
		<item>
		<title>AlmaLinux 9.1 : SSH、Firewalld、NTP Server</title>
		<link>https://korodes.com/en/almalinux9-1_en_03/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 23 Nov 2022 07:05:31 +0000</pubDate>
				<category><![CDATA[Almalinux9.1_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=10995</guid>

					<description><![CDATA[1.SSH remote connection

SSH is a service for connecting remotely to a server and is basically running immediately after the OS is installed, but the default settings are somewhat insecure.
Here we will configure the default settings to increase the security of ssh connections.

1.1 SSH service configuration file changes
2.How to set up a firewall (firewalld)

In AlmaLinux, the firewall is set to firewalld by default and is enabled during OS installation.
4.NTP Server

Build an NTP server to synchronize the server time with Japan Standard Time]]></description>
		
		
		
			</item>
		<item>
		<title>AlmaLinux 9.1 : Various settings after installation</title>
		<link>https://korodes.com/en/almalinux9-1_en_02/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 23 Nov 2022 06:55:09 +0000</pubDate>
				<category><![CDATA[Almalinux9.1_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=10987</guid>

					<description><![CDATA[1.Disabling SELinux

First, disable selinux. selinux is a feature that improves auditing and security in Linux, but when enabled, it places considerable restrictions on the behavior of services and on what can be configured. Therefore, it is basically disabled in many cases.

①Disable SELinux while it is activated but no policy is loaded
2.Modernize the system

Package updates are performed as soon as possible immediately after OS installation.
However, when a dnf update is performed, a kernel update is also performed at the same time.
Performing a kernel update may require rebooting the system or stopping services, or worse, a kernel panic may occur and the system may not boot. It is wiser to exclude the kernel from the update.
By running dnf -y update with "--exclude=kernel*" behind it
kernel can be excluded from the update target.]]></description>
		
		
		
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