nginx를 시작하지 못했습니다.

RedHat 7.2 서버에 로그인했습니다. 루트에 sudo. ngixx.conf파일(1.11.7) 에서 역방향 프록시 포트를 다른 서버로 전달하기 위해 UDP 흐름 항목을 추가했습니다.

stream { server { listen 82 udp; proxy_pass xyz:16700; } }

문법 검사 통과:

# nginx -t nginx: the configuration file /etc/nginx/nginx.conf syntax is ok 
           nginx: configuration file /etc/nginx/nginx.conf test is successful

서버를 다시 시작하지 못했습니다.

# service nginx restart 

일기 기록:

Dec 20 04:46:23 esp-ss960-1-lnx-vm systemd[1]: Starting nginx - high performance web server...
Dec 20 04:46:23 esp-ss960-1-lnx-vm nginx[64702]: nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
Dec 20 04:46:23 esp-ss960-1-lnx-vm nginx[64702]: nginx: [emerg] bind() to 0.0.0.0:82 failed (13: Permission denied)
Dec 20 04:46:23 esp-ss960-1-lnx-vm nginx[64702]: nginx: configuration file /etc/nginx/nginx.conf test failed
Dec 20 04:46:23 esp-ss960-1-lnx-vm systemd[1]: nginx.service: control process exited, code=exited status=1
Dec 20 04:46:23 esp-ss960-1-lnx-vm systemd[1]: Failed to start nginx - high performance web server.
Dec 20 04:46:23 esp-ss960-1-lnx-vm systemd[1]: Unit nginx.service entered failed state.
Dec 20 04:46:23 esp-ss960-1-lnx-vm systemd[1]: nginx.service failed.

++++++++++++++++++++++++++++++++++++++++++

Dec 20 16:22:37 esp-ss960-1-lnx-vm polkitd[543]: Registered Authentication Agent for unix-process:20990:12402078 (system bus name :1.596 [/usr/bin/pkttyagent --notif
Dec 20 16:22:37 esp-ss960-1-lnx-vm systemd[1]: Starting nginx - high performance web server...
-- Subject: Unit nginx.service has begun start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit nginx.service has begun starting up.
Dec 20 16:22:38 esp-ss960-1-lnx-vm nginx[21007]: nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
Dec 20 16:22:38 esp-ss960-1-lnx-vm nginx[21007]: nginx: [emerg] open() "/var/run/nginx.pid" failed (13: Permission denied)
Dec 20 16:22:38 esp-ss960-1-lnx-vm nginx[21007]: nginx: configuration file /etc/nginx/nginx.conf test failed
Dec 20 16:22:38 esp-ss960-1-lnx-vm systemd[1]: nginx.service: control process exited, code=exited status=1
Dec 20 16:22:38 esp-ss960-1-lnx-vm systemd[1]: Failed to start nginx - high performance web server.
-- Subject: Unit nginx.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit nginx.service has failed.
--
-- The result is failed.
Dec 20 16:22:38 esp-ss960-1-lnx-vm systemd[1]: Unit nginx.service entered failed state.
Dec 20 16:22:38 esp-ss960-1-lnx-vm systemd[1]: nginx.service failed.
Dec 20 16:22:38 esp-ss960-1-lnx-vm polkitd[543]: Unregistered Authentication Agent for unix-process:20990:12402078 (system bus name :1.596, object path /org/freedesk

여기서 무엇이 잘못되었을 수 있습니까? 감사해요