Apacheが起動しない

Question

CentOS7.9でサーバを再構築しています。

その中でApacheの設定をしているのですが、なかなか起動しません。

ssl-error-logを見ると、

[Sun Nov 22 21:51:03.018762 2020] [ssl:error] [pid 2759] AH02203: Init: Private key not found
[Sun Nov 22 21:51:03.018791 2020] [ssl:error] [pid 2759] SSL Library Error: error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag
[Sun Nov 22 21:51:03.018803 2020] [ssl:error] [pid 2759] SSL Library Error: error:0D08303A:asn1 encoding routines:ASN1_TEMPLATE_NOEXP_D2I:nested asn1 error
[Sun Nov 22 21:51:03.018811 2020] [ssl:error] [pid 2759] SSL Library Error: error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag
[Sun Nov 22 21:51:03.018820 2020] [ssl:error] [pid 2759] SSL Library Error: error:0D07803A:asn1 encoding routines:ASN1_ITEM_EX_D2I:nested asn1 error (Type=RSA)
[Sun Nov 22 21:51:03.018829 2020] [ssl:error] [pid 2759] SSL Library Error: error:04093004:rsa routines:OLD_RSA_PRIV_DECODE:RSA lib
[Sun Nov 22 21:51:03.018838 2020] [ssl:error] [pid 2759] SSL Library Error: error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag
[Sun Nov 22 21:51:03.018846 2020] [ssl:error] [pid 2759] SSL Library Error: error:0D07803A:asn1 encoding routines:ASN1_ITEM_EX_D2I:nested asn1 error (Type=PKCS8_PRIV_KEY_INFO)
[Sun Nov 22 21:56:18.109883 2020] [ssl:warn] [pid 2832] AH01909: RSA certificate configured for mydomain:443 does NOT include an ID which matches the server name
[Sun Nov 22 22:17:25.035450 2020] [ssl:warn] [pid 3904] AH01909: RSA certificate configured for www.mydomin:443 does NOT include an ID which matches the server name
[Sun Nov 22 22:17:31.604176 2020] [ssl:warn] [pid 3918] AH01909: RSA certificate configured for www.mydomain:443 does NOT include an ID which matches the server name

となっています。
CertBotでSSL証明書は取れているのですが、１行目のPrivate key not foundが何を指しているかわかりません。

[ ~]# systemctl status httpd.service
● httpd.service - The Apache HTTP Server
Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since 日 2020-11-22 23:57:33 JST; 8s ago
Docs: man:httpd(8)
man:apachectl(8)
Process: 3862 ExecStart=/usr/sbin/httpd $OPTIONS -DFOREGROUND (code=exited, status=1/FAILURE)
Main PID: 3862 (code=exited, status=1/FAILURE)

11月 22 23:57:33 systemd[1]: Starting The Apache HTTP Server...
11月 22 23:57:33 systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE
11月 22 23:57:33 systemd[1]: Failed to start The Apache HTTP Server.
11月 22 23:57:33 systemd[1]: Unit httpd.service entered failed state.
11月 22 23:57:33 systemd[1]: httpd.service failed.

どうしたらApacheが起動し、443でアクセスできるようになるでしょうか。

[2020/11/23 07:58追記]
ssl.confを見直し、Apacheを移動させたところ、以下のようなエラーに変わりました。

-- Subject: Unit httpd.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit httpd.service has begun starting up.
11月 23 07:47:55  httpd[10825]: (98)Address already in use: AH00072: make_sock: could not bind to address [::]:443
11月 23 07:47:55  systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE
11月 23 07:47:55  systemd[1]: Failed to start The Apache HTTP Server.
-- Subject: Unit httpd.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit httpd.service has failed.
-- 
-- The result is failed.
11月 23 07:47:55 systemd[1]: Unit httpd.service entered failed state.
11月 23 07:47:55 systemd[1]: httpd.service failed.
11月 23 07:52:54 systemd[1]: Starting The Apache HTTP Server...
-- Subject: Unit httpd.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
コード

Answer 1

自己解決しました。

いくつかのサブドメインのconfファイルに

    SSLEngine on
    SSLProtocol all -SSLv2

の記述がありませんでした。追記したところ起動することができました。