CentOS 7 gitlab nginx 다시 시작

gitlab - ce 를 설치 한 후 문제 가 발생 했 습 니 다. 기 존 VPS 의 LNMP nginx 가 강제로 중단 되 었 고 포트 충돌 이 발생 했 습 니 다.해결 방법, gitlab 를 멈 춘 후 gitlab 자체 가 가지 고 있 는 nginx 포트 를 수정 합 니까?

[root@linode nginx]# gitlab-ctl stop
ok: down: gitlab-git-http-server: 1s, normally up
ok: down: logrotate: 0s, normally up
ok: down: nginx: 1s, normally up
ok: down: postgresql: 0s, normally up
ok: down: redis: 0s, normally up
ok: down: sidekiq: 0s, normally up
ok: down: unicorn: 0s, normally up
[root@linode nginx]# systemctl status nginx
nginx.service - nginx - high performance web server
   Loaded: loaded (/usr/lib/systemd/system/nginx.service; enabled)
   Active: failed (Result: exit-code) since   2015-11-10 21:53:18 CST; 19min ago
     Docs: http://nginx.org/en/docs/
  Process: 4246 ExecStart=/usr/sbin/nginx -c /etc/nginx/nginx.conf (code=exited, status=1/FAILURE)
  Process: 4243 ExecStartPre=/usr/sbin/nginx -t -c /etc/nginx/nginx.conf (code=exited, status=0/SUCCESS)

11  10 21:53:15 linode nginx[4243]: nginx: configuration file /etc/nginx/nginx.conf test is successful
11  10 21:53:15 linode nginx[4246]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
11  10 21:53:16 linode nginx[4246]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
11  10 21:53:16 linode nginx[4246]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
11  10 21:53:17 linode nginx[4246]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
11  10 21:53:17 linode nginx[4246]: nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
11  10 21:53:18 linode nginx[4246]: nginx: [emerg] still could not bind()
11  10 21:53:18 linode systemd[1]: nginx.service: control process exited, code=exited status=1
11  10 21:53:18 linode systemd[1]: Failed to start nginx - high performance web server.
11  10 21:53:18 linode systemd[1]: Unit nginx.service entered failed state.
[root@linode nginx]# systemctl restart nginx