안녕하세요~^^

질문의 요지를 잘 파악하질 못하겠습니다.

SSL 인증서는 인증서 파일을 서버에 업로드한 후 아파치(Apache) 등 웹서버 설정을 변경해주셔야 합니다.

워드프레스 등의 php 파일을 변경하시는 게 아닙니다. (워드프레스 플러그인으로도 안됩니다.)

웹호스팅 혹은 웹서버 관리자에게 SSL 인증서 설치를 요청하셔야 할 듯합니다.

SSL 인증서 설치를 서버에 완료 한 다음에

워드프레스 관리자 -> 설정 메뉴에서 홈페이지 주소를 https로 변경해주시면 됩니다.

그리고 프로그램 코드를 올려주실 땐 글쓰기 에디터의 "코드 스니펫 삽입"기능으로 올려주시길 부탁드립니다.

고맙습니다.

서버 설정 관련해서는 아래 링크도 참고 해보시겠어요?

아파치(Apache httpd)에 SSL(HTTPS) 적용하기

웹사이트에 SSL 보안 적용하기 2. 웹서버에 https 적용하기

서버 관련 경험이 없으시면 웹호스팅 혹은 웹서버 관리자에게 문의하시는 게 가장 수월할 듯합니다.

고맙습니다.

안녕하세요! 가비아에서 SSL보안서버 인증서(코모드)를 구입을 했고, 등록하는 과정에서  CSR입력을 하려고 하니...

아파치(Apache) CSR생성을 먼저 해야 한다고 해서요. 경로를 찾지 못해서요

 CSR생성을 위해서  Apache > httpd > CSR을 생성하는 되는 것인지...

 httpd 안에  들어갔습니다.

ServerName localhost
#Don't modify below.
ServerRoot "/etc/httpd/"
Listen 8000
PidFile "/var/run/httpd.pid"
ServerAdmin "admin@localhost"
DocumentRoot "/mnt/VOL1/MYSQL/"
<Directory />
	AllowOverride none
	Require all denied
</Directory>
<Directory "">
	Options FollowSymLinks
	AllowOverride all
	Require all granted
</Directory>

LoadModule authn_file_module modules/mod_authn_file.so
#LoadModule authn_dbm_module modules/mod_authn_dbm.so
#LoadModule authn_anon_module modules/mod_authn_anon.so
#LoadModule authn_dbd_module modules/mod_authn_dbd.so
#LoadModule authn_socache_module modules/mod_authn_socache.so
LoadModule authn_core_module modules/mod_authn_core.so
LoadModule authz_host_module modules/mod_authz_host.so
LoadModule authz_groupfile_module modules/mod_authz_groupfile.so
LoadModule authz_user_module modules/mod_authz_user.so
#LoadModule authz_dbm_module modules/mod_authz_dbm.so
#LoadModule authz_owner_module modules/mod_authz_owner.so
#LoadModule authz_dbd_module modules/mod_authz_dbd.so
LoadModule authz_core_module modules/mod_authz_core.so
LoadModule access_compat_module modules/mod_access_compat.so
LoadModule auth_basic_module modules/mod_auth_basic.so
#LoadModule auth_form_module modules/mod_auth_form.so
#LoadModule auth_digest_module modules/mod_auth_digest.so
#LoadModule allowmethods_module modules/mod_allowmethods.so
#LoadModule file_cache_module modules/mod_file_cache.so
#LoadModule cache_module modules/mod_cache.so
#LoadModule cache_disk_module modules/mod_cache_disk.so
#LoadModule socache_shmcb_module modules/mod_socache_shmcb.so
#LoadModule socache_dbm_module modules/mod_socache_dbm.so
#LoadModule socache_memcache_module modules/mod_socache_memcache.so
#LoadModule dbd_module modules/mod_dbd.so
#LoadModule dumpio_module modules/mod_dumpio.so
#LoadModule buffer_module modules/mod_buffer.so
#LoadModule ratelimit_module modules/mod_ratelimit.so
LoadModule reqtimeout_module modules/mod_reqtimeout.so
#LoadModule ext_filter_module modules/mod_ext_filter.so
#LoadModule request_module modules/mod_request.so
#LoadModule include_module modules/mod_include.so
LoadModule filter_module modules/mod_filter.so
#LoadModule substitute_module modules/mod_substitute.so
#LoadModule sed_module modules/mod_sed.so
#LoadModule deflate_module modules/mod_deflate.so
LoadModule mime_module modules/mod_mime.so
LoadModule log_config_module modules/mod_log_config.so
#LoadModule log_debug_module modules/mod_log_debug.so
#LoadModule logio_module modules/mod_logio.so
LoadModule env_module modules/mod_env.so
#LoadModule expires_module modules/mod_expires.so
LoadModule headers_module modules/mod_headers.so
#LoadModule unique_id_module modules/mod_unique_id.so
LoadModule setenvif_module modules/mod_setenvif.so
LoadModule version_module modules/mod_version.so
#LoadModule remoteip_module modules/mod_remoteip.so
#LoadModule proxy_module modules/mod_proxy.so
#LoadModule proxy_connect_module modules/mod_proxy_connect.so
#LoadModule proxy_ftp_module modules/mod_proxy_ftp.so
#LoadModule proxy_http_module modules/mod_proxy_http.so
#LoadModule proxy_fcgi_module modules/mod_proxy_fcgi.so
#LoadModule proxy_scgi_module modules/mod_proxy_scgi.so
#LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
#LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
#LoadModule proxy_express_module modules/mod_proxy_express.so
#LoadModule session_module modules/mod_session.so
#LoadModule session_cookie_module modules/mod_session_cookie.so
#LoadModule session_dbd_module modules/mod_session_dbd.so
#LoadModule slotmem_shm_module modules/mod_slotmem_shm.so
#LoadModule ssl_module modules/mod_ssl.so
#LoadModule lbmethod_byrequests_module modules/mod_lbmethod_byrequests.so
#LoadModule lbmethod_bytraffic_module modules/mod_lbmethod_bytraffic.so
#LoadModule lbmethod_bybusyness_module modules/mod_lbmethod_bybusyness.so
#LoadModule lbmethod_heartbeat_module modules/mod_lbmethod_heartbeat.so
LoadModule mpm_prefork_module modules/mod_mpm_prefork.so
LoadModule unixd_module modules/mod_unixd.so
LoadModule dav_module modules/mod_dav.so
LoadModule status_module modules/mod_status.so
LoadModule autoindex_module modules/mod_autoindex.so
#LoadModule info_module modules/mod_info.so
#LoadModule cgid_module modules/mod_cgid.so
#LoadModule dav_fs_module modules/mod_dav_fs.so
LoadModule dav_svn_module modules/mod_dav_svn.so
LoadModule authz_svn_module modules/mod_authz_svn.so
#LoadModule vhost_alias_module modules/mod_vhost_alias.so
#LoadModule negotiation_module modules/mod_negotiation.so
LoadModule dir_module modules/mod_dir.so
#LoadModule actions_module modules/mod_actions.so
#LoadModule speling_module modules/mod_speling.so
#LoadModule userdir_module modules/mod_userdir.so
LoadModule alias_module modules/mod_alias.so
LoadModule rewrite_module modules/mod_rewrite.so
LoadModule php5_module modules/libphp5.so

<IfModule unixd_module>
User admin
Group users
</IfModule>

# 'Main' server configuration
#
# The directives in this section set up the values used by the 'main'
# server, which responds to any requests that aren't handled by a
# <VirtualHost> definition.  These values also provide defaults for
# any <VirtualHost> containers you may define later in the file.
#
# All of these directives may appear inside <VirtualHost> containers,
# in which case these default settings will be overridden for the
# virtual host being defined.
#

#
# ServerAdmin: Your address, where problems with the server should be
# e-mailed.  This address appears on some server-generated pages, such
# as error documents.  e.g. admin@your-domain.com
#

#
# ServerName gives the name and port that the server uses to identify itself.
# This can often be determined automatically, but we recommend you specify
# it explicitly to prevent problems during startup.
#
# If your host doesn't have a registered DNS name, enter its IP address here.
#
#ServerName www.example.com:80


#
# Note that from this point forward you must specifically allow
# particular features to be enabled - so if something's not working as
# you might expect, make sure that you have specifically enabled it
# below.
#

#
# documents. By default, all requests are taken from this directory, but
# symbolic links and aliases may be used to point to other locations.
#

#
# DirectoryIndex: sets the file that Apache will serve if a directory
# is requested.
#
<IfModule dir_module>
DirectoryIndex index.html index.php index.phtml
</IfModule>

#
# The following lines prevent .htaccess and .htpasswd files from being 
# viewed by Web clients. 
#
<Files ".ht*">
	Require all denied
</Files>

LogLevel warn

#Don't modify log path!!!
ErrorLog "_logs/error_log"

<IfModule log_config_module>
	LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
	LogFormat "%h %l %u %t \"%r\" %>s %b" common

	<IfModule logio_module>
		LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
	</IfModule>

	#Don't modify log path!!!
	CustomLog "_logs/access_log" common
</IfModule>


<IfModule alias_module>
	#
	# Redirect: Allows you to tell clients about documents that used to 
	# exist in your server's namespace, but do not anymore. The client 
	# will make a new request for the document at its new location.
	# Example:
	# Redirect permanent /foo http://www.example.com/bar

	#
	# Alias: Maps web paths into filesystem paths and is used to
	# Example:
	# Alias /webpath /full/filesystem/path
	#
	# If you include a trailing / on /webpath then the server will
	# require it to be present in the URL.  You will also likely
	# need to provide a <Directory> section to allow access to
	# the filesystem path.

	#
	# ScriptAlias: This controls which directories contain server scripts. 
	# ScriptAliases are essentially the same as Aliases, except that
	# documents in the target directory are treated as applications and
	# run by the server when requested rather than as documents sent to the
	# client.  The same rules about trailing "/" apply to ScriptAlias
	# directives as to Alias.
	#
	ScriptAlias /cgi-bin/ "/mnt/VOL1/MYSQL/cgi-bin/"

</IfModule>

<IfModule cgid_module>
	#
	# ScriptSock: On threaded servers, designate the path to the UNIX
	# socket used to communicate with the CGI daemon of mod_cgid.
	#
	#Scriptsock cgisock
</IfModule>

#
# "/mnt/VOL1/MYSQL/cgi-bin" should be changed to whatever your ScriptAliased
# CGI directory exists, if you have that configured.
#
<Directory "/mnt/VOL1/MYSQL/cgi-bin">
	AllowOverride None
	Options None
	Require all granted
</Directory>

<IfModule mime_module>
	#
	# TypesConfig points to the file containing the list of mappings from
	# filename extension to MIME-type.
	#
	TypesConfig conf/mime.types

	#
	# AddType allows you to add to or override the MIME configuration
	# file specified in TypesConfig for specific file types.
	#
	#AddType application/x-gzip .tgz
	#
	# AddEncoding allows you to have certain browsers uncompress
	# information on the fly. Note: Not all browsers support this.
	#
	#AddEncoding x-compress .Z
	#AddEncoding x-gzip .gz .tgz
	#
	# If the AddEncoding directives above are commented-out, then you
	# probably should define those extensions to indicate media types:
	#
	AddType application/x-compress .Z
	AddType application/x-gzip .gz .tgz


#php
	AddType application/x-httpd-php .php
	AddType application/x-httpd-php-source .phps

	#
	# AddHandler allows you to map certain file extensions to "handlers":
	# actions unrelated to filetype. These can be either built into the server
	# or added with the Action directive (see below)
	#
	# To use CGI scripts outside of ScriptAliased directories:
	# (You will also need to add "ExecCGI" to the "Options" directive.)
	#
	#AddHandler cgi-script .cgi

	# For type maps (negotiated resources):
	#AddHandler type-map var

	#
	# Filters allow you to process content before it is sent to the client.
	#
	# To parse .shtml files for server-side includes (SSI):
	# (You will also need to add "Includes" to the "Options" directive.)
	#
	#AddType text/html .shtml
	#AddOutputFilter INCLUDES .shtml
</IfModule>

#
# The mod_mime_magic module allows the server to use various hints from the
# contents of the file itself to determine its type.  The MIMEMagicFile
# directive tells the module where the hint definitions are located.
#
#MIMEMagicFile conf/magic

#
# Customizable error responses come in three flavors:
# 1) plain text 2) local redirects 3) external redirects
#
# Some examples:
#ErrorDocument 500 "The server made a boo boo."
#ErrorDocument 404 /missing.html
#ErrorDocument 404 "/cgi-bin/missing_handler.pl"
#ErrorDocument 402 http://www.example.com/subscription_info.html
#

#
# MaxRanges: Maximum number of Ranges in a request before
# returning the entire resource, or one of the special
# values 'default', 'none' or 'unlimited'.
# Default setting is to accept 200 Ranges.
#MaxRanges unlimited

#
# EnableMMAP and EnableSendfile: On systems that support it, 
# memory-mapping or the sendfile syscall may be used to deliver
# files.  This usually improves server performance, but must
# be turned off when serving from networked-mounted 
# filesystems or if support for these functions is otherwise
# broken on your system.
# Defaults: EnableMMAP On, EnableSendfile Off
#
#EnableMMAP off
#EnableSendfile on

# Supplemental configuration
#
# The configuration files in the conf/extra/ directory can be 
# included to add extra features or to modify the default configuration of 
# the server, or you may simply copy their contents here and change as 
# necessary.

# Server-pool management (MPM specific)
#Include conf/extra/httpd-mpm.conf

# Multi-language error messages
#Include conf/extra/httpd-multilang-errordoc.conf

# Fancy directory listings
#Include conf/extra/httpd-autoindex.conf

# Language settings
#Include conf/extra/httpd-languages.conf

# User home directories
#Include conf/extra/httpd-userdir.conf

# Real-time info on requests and configuration
#Include conf/extra/httpd-info.conf

# Virtual hosts
#Include conf/extra/httpd-vhosts.conf

# Local access to the Apache HTTP Server Manual
#Include conf/extra/httpd-manual.conf

# Distributed authoring and versioning (WebDAV)
#Include conf/extra/httpd-dav.conf

# Various default settings
#Include conf/extra/httpd-default.conf

# Configure mod_proxy_html to understand HTML4/XHTML1
<IfModule proxy_html_module>
Include conf/extra/proxy-html.conf
</IfModule>

# Secure (SSL/TLS) connections
#Include conf/extra/httpd-ssl.conf
#
# Note: The following must must be present to support
#       starting without SSL on platforms with no /dev/random equivalent
#       but a statically compiled-in mod_ssl.
#
<IfModule ssl_module>
SSLRandomSeed startup builtin
SSLRandomSeed connect builtin
</IfModule>

# Deal with user agents that deliberately violate open standards
#
<IfModule setenvif_module>
BrowserMatch "MSIE 10.0;" bad_DNT
</IfModule>
<IfModule headers_module>
RequestHeader unset DNT env=bad_DNT
</IfModule>

<IfModule mpm_prefork_module>
StartServers             5
MinSpareServers          5
MaxSpareServers         10
MaxRequestWorkers      250
MaxConnectionsPerChild   0
</IfModule>

이 내용이 있어서요

# Secure (SSL/TLS) connections
#Include conf/extra/httpd-ssl.conf
#
# Note: The following must must be present to support
#       starting without SSL on platforms with no /dev/random equivalent
#       but a statically compiled-in mod_ssl.
#

아래쪽에 내용을 설정하면  CSR생성이 되여서 가비아에 SSL CSR정보를 입력 후 등록을 할 수 있을까요?

''이제 HTTP/2 모듈을 .conf 파일에 추가하면 된다(여기서는 서버에 SSL을 적용했기 때문에 ssl.conf를 수정했다. 만약에 SSL을 사용하지 않는다면 httpd.conf를 수정하면 된다).

$sudo vim /etc/httpd/conf.d/ssl.conf

<VirtualHost _default_:443>
...
# 아래 내용 추가
LoadModule http2_module modules/mod_http2.so
Protocols h2 http/1.1 "

또는

Apache 웹 서버에 로그인하십시오. 
httpd.conf 파일 (기본 위치는 / usr / local / apache2 / conf /)을 백업하십시오. 
vi 편집기로 파일을 열고 mod_ssl 모듈 및 httpd-ssl.conf가 존재하고 주석 처리되지 않았는지 확인하십시오 
  LoadModule ssl_module 모듈 / mod_ssl.so
 conf / extra / httpd-ssl.conf 포함 
httpd-ssl.conf 파일을 사용하여 인증서 세부 정보를 구성합니다. 다음은 올바른 매개 변수가 있는지 확인해야하는 경우입니다. 
SSLCertificateFile - 이전에 다운로드 한 인증서 CRT 파일 경로 
SSLCertificateKeyFile - private.a 키 파일 경로 
SSLCertificateChainFile - ca_bundle.crt 파일 경로 

안녕하세요.

CSR 생성은 기존의 서버 설정이나 파일을 수정하는 것과는 관련이 없습니다.

윈도우 command 창에서 openssl req -new -key [키 파일] -out [생성할 CSR 키 파일명] 명령어 또는

웹 페이지에서 생성하실 수 있습니다.

자세한 내용은 아래의 링크들을 참고해보시겠어요?

https://www.ucert.co.kr/tech/csr/apache.html

https://www.gogetssl.com/online-csr-generator/

직접 하시기 어려우시다면 호스팅 업체에 SSL 설치 관련해서 문의해보시면 도움을 줄 겁니다.

고맙습니다.