リモート先のWebサーバにアクセスができない

####リモート先のWebサーバにアクセスできない
自宅内でノートPCから自宅内にあるWebサーバにIP指定で入ろうとしたがタイムアウトしてしまいます。
色々切り分けをしてみましたが、うまくできません。

＃ service httpd status
● httpd.service - The Apache HTTP Server
Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
Active: active (running)

⇒サービスが動いていて、実際サーバ先で直接確認すると、サービス自体が動いていることは確認できました。
serviceの再起動、サーバの再起動も試みましたが改善されませんでした

・firewallの設定は行っていません

・以前は、普通にアクセスができましたが、久々に開こうとしたら開けませんでした。なので特に新しく設定したとかはないです

・pingの疎通、SSHアクセスはできました。

・/var/log/httpd/error_log
[Thu Mar 01 01:18:54.631225 2018] [mpm_prefork:notice] [pid 3642] AH00170: caught SIGWINCH, shutting down gracefully
[Thu Mar 01 01:35:17.374965 2018] [suexec:notice] [pid 8318] AH01232: suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Thu Mar 01 01:35:17.389498 2018] [auth_digest:notice] [pid 8318] AH01757: generating secret for digest authentication ...
[Thu Mar 01 01:35:17.390279 2018] [lbmethod_heartbeat:notice] [pid 8318] AH02282: No slotmem from mod_heartmonitor
[Thu Mar 01 01:35:17.403184 2018] [mpm_prefork:notice] [pid 8318] AH00163: Apache/2.4.6 (CentOS) configured -- resuming normal
operations
[Thu Mar 01 01:35:17.403232 2018] [core:notice] [pid 8318] AH00094: Command line: '/usr/sbin/httpd -D FOREGROUND'
[Thu Mar 01 01:37:12.459341 2018] [mpm_prefork:notice] [pid 8318] AH00170: caught SIGWINCH, shutting down gracefully
[Thu Mar 01 01:37:14.358356 2018] [suexec:notice] [pid 8575] AH01232: suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Thu Mar 01 01:37:14.372682 2018] [auth_digest:notice] [pid 8575] AH01757: generating secret for digest authentication ...
[Thu Mar 01 01:37:14.373475 2018] [lbmethod_heartbeat:notice] [pid 8575] AH02282: No slotmem from mod_heartmonitor
[Thu Mar 01 01:37:14.378184 2018] [mpm_prefork:notice] [pid 8575] AH00163: Apache/2.4.6 (CentOS) configured -- resuming normal
operations
[Thu Mar 01 01:37:14.378227 2018] [core:notice] [pid 8575] AH00094: Command line: '/usr/sbin/httpd -D FOREGROUND'
[Thu Mar 01 01:39:34.676483 2018] [mpm_prefork:notice] [pid 8575] AH00170: caught SIGWINCH, shutting down gracefully
[Thu Mar 01 01:40:45.070122 2018] [suexec:notice] [pid 9026] AH01232: suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Thu Mar 01 01:40:45.083184 2018] [auth_digest:notice] [pid 9026] AH01757: generating secret for digest authentication ...
[Thu Mar 01 01:40:45.083835 2018] [lbmethod_heartbeat:notice] [pid 9026] AH02282: No slotmem from mod_heartmonitor
[Thu Mar 01 01:40:45.090073 2018] [mpm_prefork:notice] [pid 9026] AH00163: Apache/2.4.6 (CentOS) configured -- resuming normal
operations
[Thu Mar 01 01:40:45.090164 2018] [core:notice] [pid 9026] AH00094: Command line: '/usr/sbin/httpd -D FOREGROUND'
[Thu Mar 01 01:42:22.260500 2018] [mpm_prefork:notice] [pid 9026] AH00170: caught SIGWINCH, shutting down gracefully
[Thu Mar 01 01:42:23.330058 2018] [suexec:notice] [pid 9165] AH01232: suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Thu Mar 01 01:42:23.345492 2018] [auth_digest:notice] [pid 9165] AH01757: generating secret for digest authentication ...
[Thu Mar 01 01:42:23.346273 2018] [lbmethod_heartbeat:notice] [pid 9165] AH02282: No slotmem from mod_heartmonitor
[Thu Mar 01 01:42:23.352760 2018] [mpm_prefork:notice] [pid 9165] AH00163: Apache/2.4.6 (CentOS) configured -- resuming normal
operations
[Thu Mar 01 01:42:23.352809 2018] [core:notice] [pid 9165] AH00094: Command line: '/usr/sbin/httpd -D FOREGROUND'
[Thu Mar 01 01:50:17.840721 2018] [mpm_prefork:notice] [pid 9165] AH00170: caught SIGWINCH, shutting down gracefully
[Thu Mar 01 01:50:20.840367 2018] [suexec:notice] [pid 10069] AH01232: suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Thu Mar 01 01:50:20.854749 2018] [auth_digest:notice] [pid 10069] AH01757: generating secret for digest authentication ...
[Thu Mar 01 01:50:20.855541 2018] [lbmethod_heartbeat:notice] [pid 10069] AH02282: No slotmem from mod_heartmonitor
[Thu Mar 01 01:50:20.861152 2018] [mpm_prefork:notice] [pid 10069] AH00163: Apache/2.4.6 (CentOS) configured -- resuming norma
l operations
[Thu Mar 01 01:50:20.861191 2018] [core:notice] [pid 10069] AH00094: Command line: '/usr/sbin/httpd -D FOREGROUND'
[Thu Mar 01 03:18:07.292536 2018] [mpm_prefork:notice] [pid 10069] AH00171: Graceful restart requested, doing restart
[Thu Mar 01 03:18:07.336038 2018] [auth_digest:notice] [pid 10069] AH01757: generating secret for digest authentication ...
[Thu Mar 01 03:18:07.343845 2018] [lbmethod_heartbeat:notice] [pid 10069] AH02282: No slotmem from mod_heartmonitor
[Thu Mar 01 03:18:07.