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	<title>Rocky Linux9.4_en | Linux Server Construction</title>
	<atom:link href="https://korodes.com/en/category/rocky9-4_en/feed/" rel="self" type="application/rss+xml" />
	<link>https://korodes.com</link>
	<description></description>
	<lastBuildDate>Mon, 29 Dec 2025 06:41:16 +0000</lastBuildDate>
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	<title>Rocky Linux9.4_en | Linux Server Construction</title>
	<link>https://korodes.com</link>
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	<item>
		<title>Rocky Linux9.4 : SSL Certificate Acquisition( Let&#039;s Encrypt ) , Apache SSL , Mail SSL/TLS</title>
		<link>https://korodes.com/en/rocky9-4_en_07/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Tue, 20 Aug 2024 00:32:41 +0000</pubDate>
				<category><![CDATA[Rocky Linux9.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=27190</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>Rocky Linux9.4 : System Backup and Restore</title>
		<link>https://korodes.com/en/rocky9-4_en_12/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 21 Aug 2024 01:29:27 +0000</pubDate>
				<category><![CDATA[Rocky Linux9.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=27217</guid>

					<description><![CDATA[1.Website data backup
1-1.Backup under /var/www/html

①Create backup script file

# cd /var/www/system
# vi backup_html.sh
2.MySQL database backup


①Create backup script file

# cd /var/www/system
# vi db_my_backup.sh
3.Restore backup files under html

①Store HTML backup files in "/ (root)" directory
4.Restore Mysql backup file

①Save the database backup file to any directory and
（In the example, the directory is "/var/www/backup/db_bak".）Extracting data]]></description>
		
		
		
			</item>
		<item>
		<title>Rocky Linux9.4 : Logwatch , Disk Usage Check Script</title>
		<link>https://korodes.com/en/rocky9-4_en_11/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 21 Aug 2024 01:14:47 +0000</pubDate>
				<category><![CDATA[Rocky Linux9.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=27211</guid>

					<description><![CDATA[1. Logwatch

①Install

# dnf install logwatch
②Edit configuration file


2.Introduce disk usage check script
2.1 Script Creation
# cd /var/www/system
# vi disk_capacity_check.sh]]></description>
		
		
		
			</item>
		<item>
		<title>Rocky Linux9.4 : SNORT3 Install</title>
		<link>https://korodes.com/en/rocky9-4_en_10/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 21 Aug 2024 00:18:52 +0000</pubDate>
				<category><![CDATA[Rocky Linux9.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=27206</guid>

					<description><![CDATA[SNORT3

 Snort is an open source network intrusion detection system capable of performing real-time traffic analysis and packet logging on IP networks。

It can perform “protocol analysis,” “content search,” and “matching,” and can be used to detect various attacks such as “buffer overflows,” “stealth port scans,” “CGI attacks,” “SMB probes,” “OS fingerprinting attempts,” “semantic URL attacks,” and “server message block probes. The system can be used to detect a variety of attacks, such as]]></description>
		
		
		
			</item>
		<item>
		<title>Rocky Linux9.4 : Suricata , Tripwire , Chkrootkit</title>
		<link>https://korodes.com/en/rocky9-4_en_09/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Tue, 20 Aug 2024 13:11:10 +0000</pubDate>
				<category><![CDATA[Rocky Linux9.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=27200</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
Tripwire

1.Installation
# dnf install -y tripwire
Chkrootkit

①Download and install chkrootkit]]></description>
		
		
		
			</item>
		<item>
		<title>Rocky Linux9.4 : MySQL8 , WordPress Install</title>
		<link>https://korodes.com/en/rocky9-4_en_08/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Tue, 20 Aug 2024 02:26:08 +0000</pubDate>
				<category><![CDATA[Rocky Linux9.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=27196</guid>

					<description><![CDATA[MySQL8 Install

＃ dnf -y install mysql-server

charset.cnf   Create a new one with the f
WordPress Install

1. Create database for Word Press

As an example, assume database [wp_db] database user [wp_user] password [?Ww123456]]]></description>
		
		
		
			</item>
		<item>
		<title>Rocky Linux9.4 : Anti-virus(Clamav) , Mail Server</title>
		<link>https://korodes.com/en/rocky9-4_en_06/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Mon, 19 Aug 2024 07:33:25 +0000</pubDate>
				<category><![CDATA[Rocky Linux9.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=27185</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
Mail : Postfix + Clamav + clamav-milter+SpamAssassin

1.Real-time scanning of e-mails

①clamav-milter Install
Virus checks are performed on the mail server side using Clam AntiVirus.
The mail server and Clam AntiVirus are linked using clamav-milter.]]></description>
		
		
		
			</item>
		<item>
		<title>Rocky Linux9.4 : WEB Server(Apache2) &#038; Virtual Hosts</title>
		<link>https://korodes.com/en/rocky9-4_en_05/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Mon, 19 Aug 2024 04:57:59 +0000</pubDate>
				<category><![CDATA[Rocky Linux9.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=27180</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 [rocky.korodes.com] to the document root [/var/www/html/rocky.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>Rocky Linux9.4 : FTP Server , Samba File Server</title>
		<link>https://korodes.com/en/rocky9-4_en_04/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Mon, 19 Aug 2024 04:44:33 +0000</pubDate>
				<category><![CDATA[Rocky Linux9.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=27172</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>Rocky Linux9.4 : SSH connection with public key</title>
		<link>https://korodes.com/en/rocky9-4_en_03/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Mon, 19 Aug 2024 04:27:45 +0000</pubDate>
				<category><![CDATA[Rocky Linux9.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=27166</guid>

					<description><![CDATA[SSH connection with authentication using public key cryptography

 Creation of public and private key pairs

Create a public/private key pair for a user connecting to the Linux server using OpenSSH.
Use ssh-keygen to create key pairs.
Creation of public/private key pairs 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.]]></description>
		
		
		
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