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| SSHD | systemctl restart sshd.service |
| httpd | systemctl restart httpd.service |
| postgres | systemctl start postgresql.service |
| systemctl status httpd |
| 有効 | systemctl enable sshd.service |
| 無効 | systemctl disable sshd.service |
systemctl list-units --type=service
firewall-cmd --permanent --add-port=任意のポート/tcp
firewall-cmd --list-all
