[root@localhost ~]# journalctl -xe
Jan 29 localhost 10:39:20 nginx[8556]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
Jan 29 localhost 10:39:20 nginx[8556]: nginx: [emerg] bind() to 0.0.0.0:443 failed (98: Address already in use)
Jan 29 localhost 10:39:20 nginx[8556]: nginx: [emerg] still could not bind()
Jan 29 localhost 10:39:20 systemd[1]: nginx.service: control process exited, code=exited status=1
Jan 29 localhost 10:39:20 systemd[1]: Failed to start The nginx HTTP and reverse proxy server.
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
原文：https://www.cnblogs.com/l-zl/p/10333029.html