请在网站管理中执行下配置检测.检查下配置文件是否正常.

nginx: [emerg] dlopen() "/etc/nginx/modules/ngx_http_sysguard_module.so" failed (/etc/nginx/modules/ngx_http_sysguard_module.so: cannot open shared object file: No such file or directory) in /etc/nginx/nginx.conf:1
nginx: configuration file /etc/nginx/nginx.conf test failed

你的nginx 安装过sysguard 扩展(监控系统的负载和资源占用从而对系统进行保护。),
后来卸载了, 可是配置中没有禁用导致的.

解决方法有两种.
1 重新安装sysguard 扩展
2 在网站管理->组件管理->nginx->全局源文->编辑,删除以下行

load_module       modules/ngx_http_sysguard_module.so;

保存后即可重启

安装Nginx失败：未知错误
软件冲突： 暂无解决方案
Transaction Summary=======================================================================================Install 20 Packages (+2 Dependent packages)Total size: 15 MTotal download size: 18 kInstalled size: 45 MDownloading packages:Delta RPMs disabled because /usr/bin/applydeltarpm not installed.appnode-nginx-stable-module-he FAILED http://repo.appnode.com/stable/el/7/x86_64/appnode-nginx-stable-module-headers-more-1.14.0.0.32-1.el7.x86_64.rpm: [Errno 14] HTTP Error 416 - Requested Range Not SatisfiableTrying other mirror.Error downloading packages: 1:appnode-nginx-stable-module-headers-more-1.14.0.0.32-1.el7.x86_64: [Errno 256] No more mirrors to try.

nginx: [emerg] unknown directive "brotli" in /home/WHMCS/sites/www.net.com/conf/nginx.conf:26
nginx: configuration file /etc/nginx/nginx.conf test failed

Quote小鱼儿 发表于 2018-6-21 11:44
请在网站管理中执行下配置检测.检查下配置文件是否正常.

user              nginx;
worker_processes  1;
error_log         /var/log/nginx/error.log warn;
pid               /var/run/nginx.pid;

events {
    worker_connections  1024;
}

http {
    include                        /etc/nginx/mime.types;
    default_type                   application/octet-stream;
    log_format                     main '$remote_addr - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent" "$http_x_forwarded_for"';
    access_log                     /var/log/nginx/access.log main;
    sendfile                       on;
    keepalive_timeout              65;
    include                        conf.sitemgr.d/main.conf;
    include                        conf.sitemgr.d/global/conf/http.conf;
    server_names_hash_max_size     512;
    server_names_hash_bucket_size  128;
}

stream {
    log_format  proxy '$remote_addr [$time_local] $protocol $status $bytes_sent $bytes_received $session_time "$upstream_addr" "$upstream_bytes_sent" "$upstream_bytes_received" "$upstream_connect_time"';
    include     conf.sitemgr.d/main_stream.conf;
}

看起来没有这个配置啊

QuoteRyan 发表于 2018-6-21 14:26
nginx: [emerg] unknown directive "brotli" in /home/WHMCS/sites/www.net.com/conf/nginx.conf:26
nginx: ...

这个错误是在站点配置
这个文件下 /home/WHMCS/sites/www.net.com/conf/nginx.conf

而不是全局配置.
这应该也是插件问题导致的. 你的站点开启了brotli了吧. 可是扩展又没有启动导致的.
你需要去站点里面把brotli给关闭 .然后部署重载.

我前面只让你删除
load_module modules/ngx_http_sysguard_module.so;
你把 brotli插件也删除了吧, 才会导致这个问题.