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	<title>Almalinux9.2_en | Linux Server Construction</title>
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	<title>Almalinux9.2_en | Linux Server Construction</title>
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	<item>
		<title>AlmaLinux9.2 ; WEB Server(Apache2)  &#038; Virtual Hosts</title>
		<link>https://korodes.com/en/almalinux9-2_en_06/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Thu, 18 May 2023 03:24:47 +0000</pubDate>
				<category><![CDATA[Almalinux9.2_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=16214</guid>

					<description><![CDATA[1.Apache2 Install , Virtual Host Configuration

1.1 Apache2 install
2. Use of CGI Scripts

①CGI availability check
3. PHP installation and configuration
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>AlmaLinux9.2 ; Suricata , Tripwire , Chkrootkit</title>
		<link>https://korodes.com/en/almalinux9-2_en_10/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Sat, 20 May 2023 13:00:49 +0000</pubDate>
				<category><![CDATA[Almalinux9.2_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=16252</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.
Tripwire

1.Download and installation
Chkrootkit

①Download and install chkrootkit]]></description>
		
		
		
			</item>
		<item>
		<title>AlmaLinux9.2 ; SSL Certificate Acquisition( Let&#039;s Encrypt ) , Apache SSL , Mail SSL/TLS</title>
		<link>https://korodes.com/en/almalinux9-2_en_08/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Fri, 19 May 2023 03:36:11 +0000</pubDate>
				<category><![CDATA[Almalinux9.2_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=16236</guid>

					<description><![CDATA[1. .Obtain an SSL certificate ( Let's Encrypt )

Install the latest open ssl
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
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>AlmaLinux9.2 ; OS Install</title>
		<link>https://korodes.com/en/almalinux9-2_en_01/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Tue, 16 May 2023 23:59:02 +0000</pubDate>
				<category><![CDATA[Almalinux9.2_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=16180</guid>

					<description><![CDATA[AlmaLinux 9.2 Install

AlmaLinux OS is a project launched by CloudLinux in the US as an alternative to CentOS. Currently, the AlmaLinux OS Foundation is the development parent organization.Following the general availability of Red Hat Enterprise Linux 9.0, AlmaLinux 9.0 was released on May 26, 2022.
Like Red Hat Enterprise Linux 9, AlmaLinux 9 utilizes the same package versions as the Linux 5.14 kernel, GCC 11, Python 3.9, and RHEL9.
Cockpit web management interface, enhanced kernel live patching, improved container and cloud integration, OpenSSL 3, and other security improvements.
This time we will install AlmaLinux 9.2 with a minor upgrade on May 11, 2023.]]></description>
		
		
		
			</item>
		<item>
		<title>AlmaLinux9.2 ; Various settings after installation</title>
		<link>https://korodes.com/en/almalinux9-2_en_02/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 17 May 2023 02:32:53 +0000</pubDate>
				<category><![CDATA[Almalinux9.2_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=16186</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.
SELinux Operation Mode
Enforcing : SELinux functionality is enabled and access control is enabled
Permissive : SElinux will warn, but no access restrictions will be placed
disabled : Both SElinux function and access control are disabled]]></description>
		
		
		
			</item>
		<item>
		<title>AlmaLinux9.2 ; Anti-virus(Clamav) , Mail Server</title>
		<link>https://korodes.com/en/almalinux9-2_en_07/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Thu, 18 May 2023 06:44:22 +0000</pubDate>
				<category><![CDATA[Almalinux9.2_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=16223</guid>

					<description><![CDATA[Clamav (anti-virus software)Install

1.Clam AntiVirus Install
Mail Server Install

1. Postfix

1.1 Install
Install Postfix and build an SMTP server
Mail Server : Postfix + Clamav + Amavisd+SpamAssassin

1.Real-time scanning of e-mails

①Amavisd ,Clamav Server install]]></description>
		
		
		
			</item>
		<item>
		<title>AlmaLinux9.2 ; System Backup and Restore</title>
		<link>https://korodes.com/en/almalinux9-2/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Mon, 22 May 2023 12:20:06 +0000</pubDate>
				<category><![CDATA[Almalinux9.2_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=16267</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>AlmaLinux9.2 ; FTP Server , Samba FileServer Install</title>
		<link>https://korodes.com/en/almalinux9-2_en_05/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Thu, 18 May 2023 01:00:02 +0000</pubDate>
				<category><![CDATA[Almalinux9.2_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=16204</guid>

					<description><![CDATA[2. Vsftpd over SSL/TLSLS
2.1 Create self-signed certificates
This work is not required if you are using a trusted, legitimate certificate such as Let's Encrypt.
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>AlmaLinux9.2 ; SSH、Firewalld、NTP Server</title>
		<link>https://korodes.com/en/almalinux9-2_en_03/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 17 May 2023 05:36:07 +0000</pubDate>
				<category><![CDATA[Almalinux9.2_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=16193</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]]></description>
		
		
		
			</item>
		<item>
		<title>AlmaLinux9.2 ; Logwatch , DiCe , Disk Usage Check Script</title>
		<link>https://korodes.com/en/almalinux9-2_en_11/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Mon, 22 May 2023 01:09:32 +0000</pubDate>
				<category><![CDATA[Almalinux9.2_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=16260</guid>

					<description><![CDATA[Logwatch , DiCe , Disk Usage Check Script]]></description>
		
		
		
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