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	<title>Rocky Linux8.6_en | Linux Server Construction</title>
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	<link>https://korodes.com</link>
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	<lastBuildDate>Mon, 10 Mar 2025 02:36:38 +0000</lastBuildDate>
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	<title>Rocky Linux8.6_en | Linux Server Construction</title>
	<link>https://korodes.com</link>
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	<item>
		<title>Rocky Linux8.6 : SSH Public Key Cryptography Authentication</title>
		<link>https://korodes.com/en/rocky8-6_en_04/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Mon, 20 Jun 2022 10:11:34 +0000</pubDate>
				<category><![CDATA[Rocky Linux8.6_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=7997</guid>

					<description><![CDATA[SSH connection with authentication using RSA public key cryptography
Creation of 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.
This time, we will create a key set using the RSA cipher used in the SSH protocol Version 2.
Creation of public/private key pairs is performed with remote login user privileges (huong).
If you do not specify the destination and file name, id_rsa and id_rsa.pub will be created in /home/huong/.ssh/. On the way, enter the password for the key.]]></description>
		
		
		
			</item>
		<item>
		<title>Rocky Linux8.6 : System Backup and Restore</title>
		<link>https://korodes.com/en/rocky8-6_en_12/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Fri, 10 Jun 2022 07:51:30 +0000</pubDate>
				<category><![CDATA[Rocky Linux8.6_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=8119</guid>

					<description><![CDATA[1.Website data backup
1-1. Backup under /var/www/html

①Creating backup script files

# cd /var/www/system
# vi backup_html.sh
2. MySQL database backup


①Creating backup script files

# cd /var/www/system
3. Restore backup files under html

① Store HTML backup files in "/ (root)" directory

# cd /var/www/backup/html_bak
# cp html_back_20220610.tar.gz /    ←Specify the backup file with the latest date
4. Restore Mysql Backup Files

①Save DB backup file to any directory
(In the example, the directory is "/var/www/backup/db_bak") Extract data]]></description>
		
		
		
			</item>
		<item>
		<title>Rocky Linux8.6 : Logwatch ,Disk Usage Check Script</title>
		<link>https://korodes.com/en/rocky8-6_en_11/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Fri, 10 Jun 2022 05:49:41 +0000</pubDate>
				<category><![CDATA[Rocky Linux8.6_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=8098</guid>

					<description><![CDATA[1. Logwatch

① Install

# dnf install logwatch
② Edit configuration file
# cat /usr/share/logwatch/default.conf/logwatch.conf >> /etc/logwatch/conf/logwatch.conf
2. Introduce disk usage check script
2.1 Scripting
# cd /var/www/system]]></description>
		
		
		
			</item>
		<item>
		<title>Rocky Linux8.6 : Let&#039;s Encrypt , Apache  Mail  SSL</title>
		<link>https://korodes.com/en/rocky8-6_en_10/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Fri, 10 Jun 2022 00:36:22 +0000</pubDate>
				<category><![CDATA[Rocky Linux8.6_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=8087</guid>

					<description><![CDATA[1.Obtain SSL Certificate ( Let's Encrypt )

Install the latest open ssl

# dnf install openssl-devel
1.1 Certificate Installation
2. Apache SSL

Install the following just in case

# dnf -y install mod_ssl
2.1 Edit ssl.conf file
3. Mail SSL/TLS(Let's Encrypt)
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 Linux8.6 : MySQL ,WordPress Install</title>
		<link>https://korodes.com/en/rocky8-6_en_09/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Thu, 09 Jun 2022 09:35:52 +0000</pubDate>
				<category><![CDATA[Rocky Linux8.6_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=8065</guid>

					<description><![CDATA[Install Mysql8
＃dnf module -y install mysql:8.0
＃vi /etc/my.cnf.d/charset.cnf

Create a new charset.cnf with the following contents
Install WordPress
1. Create database for Word Press

As an example, assume database [wp_db] database user [wp_user] password [?W123456]]]></description>
		
		
		
			</item>
		<item>
		<title>Rocky Linux8.6 : SNORT ,Tripwire ,Chkrootkit</title>
		<link>https://korodes.com/en/rocky8-6_en_08/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 08 Jun 2022 13:40:09 +0000</pubDate>
				<category><![CDATA[Rocky Linux8.6_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=8051</guid>

					<description><![CDATA[Install SNORT
1.advance preparation

①Add the CodeReady Red Hat repository and install the required software

# dnf config-manager --set-enabled powertools
Install Tripwire
1.Download and installation
# cd /usr/local/src
# wget https://rpmfind.net/linux/epel/8/Everything/x86_64/Packages/t/tripwire-2.4.3.7-5.el8.x86_64.rpm
Install Chkrootkit

①Download and install chkrootkit

# cd /usr/local/src
# wget https://launchpad.net/chkrootkit/main/0.55/+d]]></description>
		
		
		
			</item>
		<item>
		<title>Rocky Linux8.6 : Anti-Virus 、Mail Server</title>
		<link>https://korodes.com/en/rocky8-6_en_07/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 08 Jun 2022 07:49:40 +0000</pubDate>
				<category><![CDATA[Rocky Linux8.6_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=8030</guid>

					<description><![CDATA[Install Clamav ( anti-virus software ) 1.  Install [crayon-69ceb5b5e6438665211261/] 2. Edit Clam AntiVirus con [&#8230;]]]></description>
		
		
		
			</item>
		<item>
		<title>Rocky Linux8.6 : WEB Server</title>
		<link>https://korodes.com/en/rocky8-6_en_06/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 08 Jun 2022 01:40:55 +0000</pubDate>
				<category><![CDATA[Rocky Linux8.6_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=8019</guid>

					<description><![CDATA[1. Install Apache2  &#038; Virtual Host
1.1 Install Apache2

①Install httpd

# dnf -y install httpd

Version Check
# httpd -v
Server version: Apache/2.4.37 (rocky)
Server built: May 10 2022 18:05:14
2. Use of CGI Scripts

①Confirmation of CGI availability

# grep -n "^ *ScriptAlias" /etc/httpd/conf/httpd.conf
3. PHP installation and configuration
1.Install PHP
①install
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 information, so there is almost no risk of information leakage.]]></description>
		
		
		
			</item>
		<item>
		<title>Rocky Linux8.6 : FTP Server</title>
		<link>https://korodes.com/en/rocky8-6_en_05/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 08 Jun 2022 00:13:57 +0000</pubDate>
				<category><![CDATA[Rocky Linux8.6_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=8009</guid>

					<description><![CDATA[Install FTP Server
1. Instaa  Vsftpd
# dnf -y install vsftpd
2.Vsftpd configuration]]></description>
		
		
		
			</item>
		<item>
		<title>Rocky Linux8.6 : SSH、firewall、NTP</title>
		<link>https://korodes.com/en/rocky8-6_en_03/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Tue, 07 Jun 2022 10:18:22 +0000</pubDate>
				<category><![CDATA[Rocky Linux8.6_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=7993</guid>

					<description><![CDATA[1. Setting up 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 Rocky, the firewall is set to firewalld by default and is enabled during OS installation.

To briefly explain "firewalld," when setting communication control policies, communication permission/blocking rules are applied to predefined zones, and these zones are then assigned to each NIC (network adapter).
4. NTP Server Settings

Build an NTP server to synchronize the server time with Japan Standard Time]]></description>
		
		
		
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