Nginx无法创建日志文件

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问题描述

我刚刚在新鲜的CentOS 7上安装了nginx。

我的配置有这样的行：

I've just installed nginx on fresh CentOS 7.
My config has such lines:

access_log <path to log dir>/access.log;
error_log <path to log dir>/error.log error;

log dir> 有0777个权限。

Nginx无法启动：

[root@host dir]# systemctl start nginx.serviceJob for nginx.service failed. See 'systemctl status nginx.service' and 'journalctl -xn' for details.[root@host dir]# systemctl status nginx.servicenginx.service - nginx - high performance web server Loaded: loaded (/usr/lib/systemd/system/nginx.service; disabled) Active: failed (Result: exit-code) since Пт 2015-08-28 14:35:09 MSK; 39s ago Docs: http://nginx.org/en/docs/ Process: 13026 ExecStop=/bin/kill -s QUIT $MAINPID (code=exited, status=0/SUCCESS) Process: 12883 ExecReload=/bin/kill -s HUP $MAINPID (code=exited, status=0/SUCCESS) Process: 12936 ExecStart=/usr/sbin/nginx -c /etc/nginx/nginx.conf (code=exited, status=0/SUCCESS) Process: 13493 ExecStartPre=/usr/sbin/nginx -t -c /etc/nginx/nginx.conf (code=exited, status=1/FAILURE) Main PID: 12938 (code=exited, status=0/SUCCESS)авг 28 14:35:09 hostname systemd[1]: Starting nginx - high performance web server...авг 28 14:35:09 hostname nginx[13493]: nginx: the configuration file /etc/nginx/nginx.conf syntax is okавг 28 14:35:09 hostname nginx[13493]: nginx: [emerg] open() "<path to log dir>/access.log" failed (13: Permission denied)авг 28 14:35:09 hostname nginx[13493]: nginx: configuration file /etc/nginx/nginx.conf test failedавг 28 14:35:09 hostname systemd[1]: nginx.service: control process exited, code=exited status=1авг 28 14:35:09 hostname systemd[1]: Failed to start nginx - high performance web server.авг 28 14:35:09 hostname systemd[1]: Unit nginx.service entered failed state.

The only way I was able to start is when I've changed the <path to log dir> to "/tmp". Surely, this is not what I want. Also, even nginx has started, logs didn't appeared in /tmp.

我能够开始的唯一方法是当我改变了 < path to log dir> 到/ tmp。当然，这不是我想要的。此外，即使nginx已经开始，日志也没有出现在/ tmp中。

What am I doing wrong?

我做错了什么？

谢谢。

UPD：

似乎selinux阻止了nginx。感谢@ dusan.bajic

# grep -rin "nginx" audit.log647:type=AVC msg=audit(1440761709.750:5189): avc: denied { write } for pid=13493 comm="nginx" name="logs" dev="sda1" ino=67607894 scontext=system_u:system_r:httpd_t:s0 tcontext=unconfined_u:object_r:httpd_sys_content_t:s0 tclass=dir648:type=SYSCALL msg=audit(1440761709.750:5189): arch=c000003e syscall=2 success=no exit=-13 a0=268bd96 a1=441 a2=1a4 a3=7fffd441ee50 items=0 ppid=1 pid=13493 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="nginx" exe="/usr/sbin/nginx" subj=system_u:system_r:httpd_t:s0 key=(null)649:type=SERVICE_START msg=audit(1440761709.752:5190): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg=' comm="nginx" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=failed'1087:type=AVC msg=audit(1440762687.672:5628): avc: denied { write } for pid=13680 comm="nginx" name="logs" dev="sda1" ino=67607894 scontext=system_u:system_r:httpd_t:s0 tcontext=unconfined_u:object_r:httpd_sys_content_t:s0 tclass=dir1088:type=SYSCALL msg=audit(1440762687.672:5628): arch=c000003e syscall=2 success=no exit=-13 a0=1503d96 a1=441 a2=1a4 a3=7ffdeb8313c0 items=0 ppid=1 pid=13680 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="nginx" exe="/usr/sbin/nginx" subj=system_u:system_r:httpd_t:s0 key=(null)1089:type=SERVICE_START msg=audit(1440762687.675:5629): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg=' comm="nginx" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=failed'

SOLUTION:

http://axilleas.me/en/blog/2013/selinux-policy-for-nginx-and-gitlab-unix-socket-in-fedora-19/

setenforce 0
yum install -y policycoreutils-{python,devel}
grep nginx /var/log/audit/audit.log | audit2allow -M nginx
semodule -i nginx.pp
setenforce 1

SEQUEL：

auid

Nginx无法创建日志文件

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