The Basics
- Nextcloud Server version (e.g., 29.x.x):
latest
- Operating system and version (e.g., Ubuntu 24.04):
Debian 13
- Web server and version (e.g, Apache 2.4.25):
nginx 1.29.1
- Reverse proxy and version _(e.g. nginx 1.27.2)
no proxy
- PHP version (e.g, 8.3):
8.3.25
- Is this the first time you’ve seen this error? (Yes / No):
yes
- When did this problem seem to first start?
after installation
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
no
Summary of the issue you are facing:
Nextcloud reports problems with the HTTP header.
Migration of an existing nextcloud server.
The headers are located in the nextcloud.conf file.
nginx -t does not report errors.
Some headers are not set correctly on your instance
- The `X-Content-Type-Options` HTTP header is not set to `nosniff`. This is a potential security or privacy risk, as it is recommended to adjust this setting accordingly.
- The `X-Robots-Tag` HTTP header is not set to `noindex,nofollow`. This is a potential security or privacy risk, as it is recommended to adjust this setting accordingly.
- The `X-Frame-Options` HTTP header is not set to `sameorigin`. This is a potential security or privacy risk, as it is recommended to adjust this setting accordingly.
- The `X-Permitted-Cross-Domain-Policies` HTTP header is not set to `none`. This is a potential security or privacy risk, as it is recommended to adjust this setting accordingly.
- The `X-XSS-Protection` HTTP header does not contain `1; mode=block`. This is a potential security or privacy risk, as it is recommended to adjust this setting accordingly.
- The `Referrer-Policy` HTTP header is not set to `no-referrer`, `no-referrer-when-downgrade`, `strict-origin`, `strict-origin-when-cross-origin` or `same-origin`. This can leak referer information. See the W3C Recommendation.
- The `Strict-Transport-Security` HTTP header is not set (should be at least `15552000` seconds).
Web server / Reverse Proxy
nginx.conf
user www-data;
worker_processes auto;
pid /var/run/nginx.pid;
events {
worker_connections 2048;
multi_accept on;
use epoll;
}
http {
http3_stream_buffer_size 1m;
quic_retry on;
ssl_early_data on;
quic_gso on;
quic_host_key /etc/nginx/quic_host.key;
log_format criegerde escape=json
'{'
'"time_local":"$time_local",'
'"remote_addr":"$remote_addr",'
'"remote_user":"$remote_user",'
'"request":"$request",'
'"status": "$status",'
'"body_bytes_sent":"$body_bytes_sent",'
'"request_time":"$request_time",'
'"http_referrer":"$http_referer",'
'"http_user_agent":"$http_user_agent"'
'}';
server_names_hash_bucket_size 64;
access_log /var/log/nginx/access.log; #criegerde;
error_log /var/log/nginx/error.log warn;
set_real_ip_from 127.0.0.1;
real_ip_header X-Forwarded-For;
real_ip_recursive on;
include /etc/nginx/mime.types;
default_type application/octet-stream;
sendfile on;
send_timeout 3600;
tcp_nopush on;
tcp_nodelay on;
open_file_cache max=500 inactive=10m;
open_file_cache_errors on;
keepalive_timeout 65;
reset_timedout_connection on;
server_tokens off;
resolver 127.0.0.53 176.9.93.198 176.9.1.117 valid=30s;
resolver_timeout 5s;
include /etc/nginx/conf.d/*.conf;
}
/etc/nginx/conf.d/nextcloud.conf
limit_req_zone $binary_remote_addr zone=NextcloudRateLimit:10m rate=2r/s;
server {
listen 443 ssl;
listen 443 quic reuseport;
listen [::]:443 ssl;
listen [::]:443 quic reuseport;
server_name *my.nextcloudserver.com*;
ssl_certificate /etc/letsencrypt/rsa-certs/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/rsa-certs/privkey.pem;
ssl_certificate /etc/letsencrypt/ecc-certs/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/ecc-certs/privkey.pem;
ssl_trusted_certificate /etc/letsencrypt/ecc-certs/chain.pem;
http2 on;
http3 on;
ssl_dhparam /etc/ssl/certs/dhparam.pem;
ssl_session_timeout 1d;
ssl_session_cache shared:SSL:50m;
ssl_session_tickets off;
ssl_protocols TLSv1.3 TLSv1.2;
ssl_ciphers 'TLS-CHACHA20-POLY1305-SHA256:TLS-AES-256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA512:DHE-RSA-AES256-GCM-SHA512:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384';
ssl_ecdh_curve X448:secp521r1:secp384r1;
ssl_prefer_server_ciphers on;
client_max_body_size 10G;
client_body_timeout 3600s;
client_body_buffer_size 512k;
fastcgi_buffers 64 4K;
gzip on;
gzip_vary on;
gzip_comp_level 4;
gzip_min_length 256;
gzip_proxied expired no-cache no-store private no_last_modified no_etag auth;
gzip_types application/atom+xml text/javascript application/javascript application/json application/ld+json application/manifest+json application/rss+xml application/vnd.geo+json application/vnd.ms-fontobject application/wasm application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/bmp image/svg+xml image/x-icon text/cache-manifest text/css text/plain text/vcard text/vnd.rim.location.xloc text/vtt text/x-component text/x-cross-domain-policy;
add_header Strict-Transport-Security "max-age=15768000; includeSubDomains; preload;" always;
add_header Permissions-Policy "interest-cohort=()";
add_header Referrer-Policy "no-referrer" always;
add_header X-Content-Type-Options "nosniff" always;
add_header X-Download-Options "noopen" always;
add_header X-Frame-Options "SAMEORIGIN" always;
add_header X-Permitted-Cross-Domain-Policies "none" always;
add_header X-Robots-Tag "noindex, nofollow" always;
add_header X-XSS-Protection "1; mode=block" always;
add_header Alt-Svc 'h3=":$server_port"; ma=86400';
add_header x-quic 'h3';
add_header Alt-Svc 'h3-29=":$server_port"';
add_header Alt-Svc 'h3=":443"; ma=86400, h3-29=":443"; ma=86400' always;
fastcgi_hide_header X-Powered-By;
include mime.types;
types {
text/javascript mjs;
}
root /var/www/nextcloud;
index index.php index.html /index.php$request_uri;
location = / {
if ( $http_user_agent ~ ^DavClnt ) {
return 302 /remote.php/webdav/$is_args$args;
}
}
location = /robots.txt {
allow all;
log_not_found off;
access_log off;
}
location ^~ /.well-known {
location = /.well-known/carddav { return 301 /remote.php/dav/; }
location = /.well-known/caldav { return 301 /remote.php/dav/; }
location /.well-known/acme-challenge { try_files $uri $uri/ =404; }
location /.well-known/pki-validation { try_files $uri $uri/ =404; }
return 301 /index.php$request_uri;
}
location ~ ^/(?:build|tests|config|lib|3rdparty|templates|data)(?:$|/) { return 404; }
location ~ ^/(?:\.|autotest|occ|issue|indie|db_|console) { return 404; }
location ~ \.php(?:$|/) {
rewrite ^/(?!index|remote|public|cron|core\/ajax\/update|status|ocs\/v[12]|updater\/.+|ocs-provider\/.+|.+\/richdocumentscode\/proxy) /index.php$request_uri;
fastcgi_split_path_info ^(.+?\.php)(/.*)$;
set $path_info $fastcgi_path_info;
try_files $fastcgi_script_name =404;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param PATH_INFO $path_info;
fastcgi_param HTTPS on;
fastcgi_param modHeadersAvailable true;
fastcgi_param front_controller_active true;
fastcgi_pass php-handler;
fastcgi_intercept_errors on;
fastcgi_request_buffering off;
fastcgi_read_timeout 3600;
fastcgi_send_timeout 3600;
fastcgi_connect_timeout 3600;
fastcgi_max_temp_file_size 0;
fastcgi_param HTTP_HOST $host;
add_header Alt-Svc 'h3=":443"; ma=86400, h3-29=":443"; ma=86400' always;
add_header X-FastCGI-Cache $upstream_cache_status always;
}
location ~ \.(?:css|js|mjs|svg|gif|ico|jpg|png|webp|wasm|tflite|map|ogg|flac)$ {
try_files $uri /index.php$request_uri;
add_header Cache-Control "public, max-age=15768000, $asset_immutable";
add_header Permissions-Policy "interest-cohort=()";
add_header Referrer-Policy "no-referrer" always;
add_header X-Content-Type-Options "nosniff" always;
add_header X-Frame-Options "SAMEORIGIN" always;
add_header X-Permitted-Cross-Domain-Policies "none" always;
add_header X-Robots-Tag "noindex, nofollow" always;
add_header X-XSS-Protection "1; mode=block" always;
add_header Alt-Svc 'h3=":$server_port"; ma=86400';
add_header x-quic 'h3';
add_header Alt-Svc 'h3-29=":$server_port"';
access_log off;
expires 6M;
}
location ~ \.(otf|woff2?)$ {
try_files $uri /index.php$request_uri;
expires 7d;
access_log off;
}
location /remote {
return 301 /remote.php$request_uri;
}
location /login {
limit_req zone=NextcloudRateLimit burst=5 nodelay;
limit_req_status 429;
try_files $uri $uri/ /index.php$request_uri;
}
location / {
try_files $uri $uri/ /index.php$request_uri;
add_header Alt-Svc 'h3=":443"; ma=86400, h3-29=":443"; ma=86400' always;
}
}
Configuration
Nextcloud
{
"system": {
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"***REMOVED SENSITIVE VALUE***",
"***REMOVED SENSITIVE VALUE***"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"version": "31.0.9.1",
"overwrite.cli.url": "https:\/\/***REMOVED SENSITIVE VALUE***",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"overwritehost": "l***REMOVED SENSITIVE VALUE***",
"activity_expire_days": 14,
"allow_local_remote_servers": true,
"auth.bruteforce.protection.enabled": true,
"forbidden_filenames": [
".htaccess",
"Thumbs.db",
"thumbs.db"
],
"cron_log": true,
"default_phone_region": "AT",
"enable_previews": true,
"enabledPreviewProviders": [
"OC\\Preview\\PNG",
"OC\\Preview\\JPEG",
"OC\\Preview\\GIF",
"OC\\Preview\\BMP",
"OC\\Preview\\XBitmap",
"OC\\Preview\\Movie",
"OC\\Preview\\PDF",
"OC\\Preview\\MP3",
"OC\\Preview\\TXT",
"OC\\Preview\\MarkDown",
"OC\\Preview\\HEIC",
"OC\\Preview\\Movie",
"OC\\Preview\\MKV",
"OC\\Preview\\MP4",
"OC\\Preview\\AVI"
],
"filesystem_check_changes": 0,
"filelocking.enabled": "true",
"htaccess.RewriteBase": "\/",
"integrity.check.disabled": false,
"knowledgebaseenabled": false,
"logfile": "\/var\/log\/nextcloud\/nextcloud.log",
"loglevel": "2",
"logtimezone": "Europe\/Vienna",
"remember_login_cookie_lifetime": "7200",
"session_lifetime": 7200,
"session_keepalive": true,
"auto_logout": true,
"memcache.local": "\\OC\\Memcache\\APCu",
"memcache.locking": "\\OC\\Memcache\\Redis",
"overwriteprotocol": "https",
"preview_max_x": 1024,
"preview_max_y": 768,
"preview_max_scale_factor": 1,
"profile.enabled": false,
"redis": {
"host": "***REMOVED SENSITIVE VALUE***",
"port": 0,
"password": "***REMOVED SENSITIVE VALUE***",
"timeout": 0.5,
"dbindex": 1
},
"quota_include_external_storage": false,
"share_folder": "\/Freigaben",
"skeletondirectory": "",
"trashbin_retention_obligation": "auto, 7",
"maintenance_window_start": 1,
"maintenance": false,
"twofactor_enforce": {
"false": ""
},
"twofactor_enforced": "false",
"twofactor_enforced_groups": [],
"twofactor_enforced_excluded_groups": [],
"versions_retention_obligation": "auto, 365",
"simpleSignUpLink.shown": false,
"upgrade.disable-web": true,
"log.condition": {
"apps": [
"admin_audit"
]
},
"log_rotate_size": "0"
}
}
Apps
Enabled:
- activity: 4.0.0
- admin_audit: 1.21.0
- app_api: 5.0.2
- bruteforcesettings: 4.0.0
- circles: 31.0.0
- cloud_federation_api: 1.14.0
- comments: 1.21.0
- contactsinteraction: 1.12.0
- dashboard: 7.11.0
- dav: 1.33.0
- federatedfilesharing: 1.21.0
- federation: 1.21.0
- files: 2.3.1
- files_downloadlimit: 4.0.0
- files_pdfviewer: 4.0.0
- files_reminders: 1.4.0
- files_sharing: 1.23.1
- files_trashbin: 1.21.0
- files_versions: 1.24.0
- logreader: 4.0.0
- lookup_server_connector: 1.19.0
- nextcloud_announcements: 3.0.0
- notifications: 4.0.0
- oauth2: 1.19.1
- password_policy: 3.0.0
- photos: 4.0.0
- privacy: 3.0.0
- profile: 1.0.0
- provisioning_api: 1.21.0
- recommendations: 4.0.0
- related_resources: 2.0.0
- serverinfo: 3.0.0
- settings: 1.14.0
- sharebymail: 1.21.0
- support: 3.0.0
- suspicious_login: 9.0.1
- systemtags: 1.21.1
- text: 5.0.0
- theming: 2.6.1
- twofactor_backupcodes: 1.20.0
- twofactor_totp: 13.0.0-dev.0
- updatenotification: 1.21.0
- user_status: 1.11.0
- viewer: 4.0.0
- weather_status: 1.11.0
- webhook_listeners: 1.2.0
- workflowengine: 2.13.0
Disabled:
- encryption: 2.19.0
- files_external: 1.23.0
- firstrunwizard: 4.0.0 (installed 2.18.0)
- survey_client: 3.0.0 (installed 1.17.0)
- twofactor_nextcloud_notification: 5.0.0
- user_ldap: 1.22.0