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	<title>openSUSE15.4_en | Linux Server Construction</title>
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	<title>openSUSE15.4_en | Linux Server Construction</title>
	<link>https://korodes.com</link>
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	<item>
		<title>OpenSUSE15.4 : OS download and installation</title>
		<link>https://korodes.com/en/suse15-4_en_01/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Thu, 08 Sep 2022 05:12:06 +0000</pubDate>
				<category><![CDATA[openSUSE15.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=9959</guid>

					<description><![CDATA[OpenSUSE is a Linux distribution that is community-based, free to the public, and active in adopting the latest technologies. It is sponsored by Novell and developed by the community. Originally, SUSE Linux was developed by SUSE, but after the acquisition of SUSE by Novell in 2003, Novell shifted the development structure to community-based by the OpenSUSE project as a distribution aiming for 100% open source, and changed the name from SUSE Linux to OpenSUSE Linux The name was changed to the current name.

openSUSE is available as Leap, the stable version, and Tumbleweed, which uses a rolling-release model and is also the basis for the paid-for version of SUSE Linux Enterprise.

The openSUSE project announced the official release of "openSUSE Leap 15.4" on June 8, 2022.

This is the fourth point release of the community version of the "openSUSE 15" series, built from the same source code and the same binary packages as the enterprise version "SUSE Linux Enterprise 15 SP4".]]></description>
		
		
		
			</item>
		<item>
		<title>OpenSUSE15.4 : Initialization</title>
		<link>https://korodes.com/en/suse15-4_en_02/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Thu, 08 Sep 2022 06:01:38 +0000</pubDate>
				<category><![CDATA[openSUSE15.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=9969</guid>

					<description><![CDATA[1. su コマンド利用
Not required if root password is set at the time of installation
If you set a root password, set it as follows
Log in as a general user
2. Modernize the system

To modernize the system, enter the following command
]]></description>
		
		
		
			</item>
		<item>
		<title>OpenSUSE15.4 : Firewall , SSH、NTP Server</title>
		<link>https://korodes.com/en/suse15-4_en_03/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Thu, 08 Sep 2022 10:03:11 +0000</pubDate>
				<category><![CDATA[openSUSE15.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=9976</guid>

					<description><![CDATA[1.Setting up remote connection by SSH

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.
2.How to set up a firewall (firewalld)

In openSUSE, the firewall is set to firewalld by default and is enabled during OS installation.

To briefly explain firewalld, when setting up a communication control policy, communication permission/blocking rules are applied to predefined zones, and the zones are assigned to each NIC (network adapter).]]></description>
		
		
		
			</item>
		<item>
		<title>OpenSUSE15.4 : SSH connection with  public key</title>
		<link>https://korodes.com/en/suse15-4_en_04/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Fri, 09 Sep 2022 12:54:38 +0000</pubDate>
				<category><![CDATA[openSUSE15.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=9982</guid>

					<description><![CDATA[Create a private key for the client and a public key for the server to allow login with key pair authentication

1.key pair creation

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 creation destination and file name, id_ecdsa and id_ecdsa.pub will be created in /home/(user name)/.ssh/.
On the way, also enter the password for the key.]]></description>
		
		
		
			</item>
		<item>
		<title>OpenSUSE15.4 : FTP Server</title>
		<link>https://korodes.com/en/suse15-4_en_05/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Sat, 10 Sep 2022 01:33:55 +0000</pubDate>
				<category><![CDATA[openSUSE15.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=9986</guid>

					<description><![CDATA[1. vsftpd
1.1 vsftpd Install

It is already installed at the time of openSUSE installation.
If not, you can install it with the following command
2. vsftpd SSL/TLS

Configure Vsftpd to use SSL/TLS

2.1 Create self-signed certificates

This work is not required if you are using a trusted, legitimate certificate such as Let's Encrypt.]]></description>
		
		
		
			</item>
		<item>
		<title>OpenSUSE15.4 : WEB  Server (Apache) Install</title>
		<link>https://korodes.com/en/suse15-4_en_06/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Sat, 10 Sep 2022 05:23:43 +0000</pubDate>
				<category><![CDATA[openSUSE15.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=9989</guid>

					<description><![CDATA[1. Web Server (Apache)
1.1 apache2 Install
# zypper -n install apache2
1.2 Apache2 : Basic Settings
2. Apache2 : Using Perl Scripts

Configure Perl scripts to be used as CGI
3. Apache2 : Virtual Host Settings

Configure both domains sample1.korodes.com sample2.korodes.com to be displayed on one server

# cd /srv/www/htdocs/

Create a directory named sample1.korodes.com under /srv/www/htdocs/
4. Apache2 : Using PHP Scripts

Install and configure PHP so that PHP scripts are available]]></description>
		
		
		
			</item>
		<item>
		<title>OpenSUSE15.4 : Clamav   , Mail Server Install</title>
		<link>https://korodes.com/en/suse15-4_en_07/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Sun, 11 Sep 2022 06:48:14 +0000</pubDate>
				<category><![CDATA[openSUSE15.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=9994</guid>

					<description><![CDATA[1. clamav ( anti-virus software )
1.1 Clamav install
2.  Mail server Install
2.1 Postfix install

①Install Postfix and build an SMTP server
3. Mail Server: Postfix + Clamav + Amavisd

Set up Postfix and Clamav to work together to scan incoming and outgoing mail in real time.
4.virus scan script substitution
Set up a notification to a specified e-mail address after virus check scan.]]></description>
		
		
		
			</item>
		<item>
		<title>OpenSUSE15.4  : MariaDB  , WordPress Install</title>
		<link>https://korodes.com/en/suse15-4_en_08/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Wed, 14 Sep 2022 12:24:11 +0000</pubDate>
				<category><![CDATA[openSUSE15.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=9999</guid>

					<description><![CDATA[1. MariaDB

Update the server package

# zypper ref
# zypper up -y
1.1 MariaDB  install

①install
1.2 phpMyAdmin Install

Installed phpMyAdmin and configured it to operate MariaDB via web browser
1.3 MariaDB Example of database and user creation
I'll create a user, password, and database for wordpress to install next.
2. Wordpress Install
2.1 Required library installation
# zypper install php-gd php-pdo php-mysql php-mbstring php-simplexml php-curl apache2-mod_php7
2.2 Wordpress Download and Installation]]></description>
		
		
		
			</item>
		<item>
		<title>OpenSUSE15.4 :  Snort Install</title>
		<link>https://korodes.com/en/suse15-4_en_09/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Thu, 15 Sep 2022 04:00:02 +0000</pubDate>
				<category><![CDATA[openSUSE15.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=10005</guid>

					<description><![CDATA[1.SNORT install

Snort is a network-based IDS (Intrusion Detection System). It captures packets flowing over a network and detects suspicious packets.
The source file is used directly from https://snort.org/.

1.1 Advance preparation

Install required libraries]]></description>
		
		
		
			</item>
		<item>
		<title>OpenSUSE15.4 : Obtain SSL Certificate (Let&#039;s Encrypt)　、Web Server SSL</title>
		<link>https://korodes.com/en/suse15-4_en_10/</link>
		
		<dc:creator><![CDATA[nuy]]></dc:creator>
		<pubDate>Thu, 15 Sep 2022 10:49:15 +0000</pubDate>
				<category><![CDATA[openSUSE15.4_en]]></category>
		<guid isPermaLink="false">https://korodes.com/?p=10008</guid>

					<description><![CDATA[1.Obtain an SSL Certificate (Let's Encrypt)

Preparation
Enable mod_ssl

# a2enmod ssl
1.1 Certificate Installation
# zypper -n install certbot
# certbot certonly --webroot -w /srv/www/htdocs/[Website Public Directory] -d <FQDN>
2. Web server SSL conversion
2.1 SSL Configuration
# a2enmod ssl
# a2enmod -l
actions alias auth_basic authn_core authn_file authz_host authz_groupfile authz_]]></description>
		
		
		
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