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/var/www/html is the conventional default document root installed by Debian and Ubuntu web-server packages. It is not a Linux-wide requirement: Apache serves the directory named by its active DocumentRoot, while nginx serves the directory named by root in the selected server block. Your server’s enabled configuration—not the directory name—defines which files are public.
Use the default directory for a simple, single site if it suits your deployment. For multiple domains or stricter separation, give each site its own root, commonly beneath /srv or /var/www, and keep secrets, deployment artifacts and non-public application code outside that root.
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The path is a conventional starting location, not a special filesystem feature. Debian- and Ubuntu-family packages commonly configure a newly installed Apache site with /var/www/html as its DocumentRoot. Ubuntu’s default nginx server block likewise uses root /var/www/html;. A different distribution, package, administrator or hosting panel may select another directory.
A web server does not automatically publish every directory named www. It reads its enabled virtual-host or server-block configuration, resolves the request against that configuration, and then applies access, rewrite and index rules. If the active configuration points at /srv/example.com/html, changing files in /var/www/html has no effect on that site.
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What belongs there for a simple site
For a small static site, the selected root can contain the files intentionally meant to be downloaded: an entry page such as index.html, CSS, browser-side JavaScript, images, fonts and other public assets. A request for /images/logo.svg should resolve to the corresponding file under the configured root when server rules allow it.
What the directory name does not tell you
- It does not prove that Apache or nginx is installed.
- It does not prove that the directory is currently enabled or reachable.
- It does not identify which domain uses it when several sites share a server.
- It does not make files safe to store there. Anything under the effective public root may be eligible for HTTP retrieval unless access rules prevent it.
How a URL becomes a filesystem path
Apache: DocumentRoot plus the URL path
Apache’s DocumentRoot directive names the base directory for a virtual host. In its default mapping behavior, Apache appends the URL path to that directory. With DocumentRoot /var/www/html, a request for /fish/guppies.html maps to /var/www/html/fish/guppies.html. Authentication, rewrite rules, aliases, directory permissions and content-negotiation settings can alter the final result, but the document root is the starting point.
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ServerName example.com
DocumentRoot /srv/example.com/html
DirectoryIndex index.html
</VirtualHost>The DocumentRoot in the selected virtual host matters more than the value in a disabled or example file. Apache can have several virtual hosts, each with a different root and hostname.
nginx: root, index and try_files
nginx uses a root directive inside a server block or location. Its index directive identifies default index files, and try_files is often used to test a requested path before handing the request to an application entry point.
server {
listen 80;
server_name example.com;
root /srv/example.com/html;
index index.html;
location / {
try_files $uri $uri/ =404;
}
}Apache and nginx use different configuration syntax and file layouts. A guide that tells you to edit DocumentRoot in nginx, or root in Apache, is using the wrong terminology for that server.
Find the document root your server is really using
Inspect the enabled configuration before moving files. Looking only at the directory listing can send you to the wrong location.
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Check Apache
- List enabled site definitions:
ls -l /etc/apache2/sites-enabled/. - Search those definitions for roots and hostnames:
grep -R -nE 'DocumentRoot|ServerName|ServerAlias' /etc/apache2/sites-enabled/. - Ask Apache to display its parsed virtual-host map:
sudo apache2ctl -S. This helps identify which host definition is selected for a name and port. - Open the matching file under
/etc/apache2/sites-available/or its enabled link and read the activeDocumentRoot. - After a change, validate the configuration with
sudo apache2ctl configtest, then reload the service with your distribution’s service manager, for examplesudo systemctl reload apache2.
Apache’s Debian and Ubuntu layout separates available definitions from enabled ones. Editing an available file does not change traffic until the corresponding site is enabled and Apache is reloaded.
Check nginx
- Inspect enabled server blocks:
ls -l /etc/nginx/sites-enabled/. - Search for roots and names:
grep -R -nE '^[[:space:]]*root[[:space:]]|server_name' /etc/nginx/sites-enabled/. - Print nginx’s complete parsed configuration, including included files:
sudo nginx -T, then locate the relevantserver_nameandroot. - Validate edits with
sudo nginx -t. - Reload after a successful test:
sudo systemctl reload nginx.
The packaged default file is commonly linked as /etc/nginx/sites-enabled/default, but a custom server block may take precedence for the hostname you requested.
Confirm the result with a harmless test file
Create a clearly identifiable file in the suspected root, request its exact URL, and remove it afterward. For example, place root-check.txt containing a unique sentence in the active directory and request http://your-host/root-check.txt. A 404 indicates that the request is reaching another root, a different virtual host, a rewrite, an access rule or a different machine; it does not by itself prove the file was written incorrectly.
Organize one small website
A single site can use the package default while you are learning or while its deployment is intentionally simple:
/var/www/html/
index.html
assets/
site.css
site.js
images/
logo.svg
banner.webp
downloads/
public-guide.pdfKeep the hierarchy understandable. Use stable, lowercase names for URLs, keep build output in a predictable directory, and avoid placing temporary archives beside live assets. If a framework expects a public subdirectory, configure the server to use that subdirectory rather than exposing the project directory above it.
When the default root is a good fit
- There is one small site on the machine.
- The operating system package’s conventions are useful to your team.
- Your deployment process can update the directory without mixing private files into it.
- You have verified that the selected virtual host actually points there.
Use one root per site when hosting multiple domains
Do not put unrelated domains into one shared directory and rely on filename conventions to keep them apart. Give each site its own root and point the matching Apache virtual host or nginx server block at it.
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/srv/example.com/
html/
index.html
assets/
images/
private/
releases/
shared/
uploads/
/var/www/example.net/
html/
index.php
public/
The exact parent directory can be consistent across sites, but consistency is less important than an unambiguous mapping between hostname, configuration and root. A practical layout keeps enabled configuration in the operating system’s configuration directories and keeps site content in the site’s own tree.
Apache multi-site pattern
Create a separate virtual-host definition for each domain under /etc/apache2/sites-available/. Give each definition its own ServerName, any required aliases, and a distinct DocumentRoot. Enable the intended definitions into /etc/apache2/sites-enabled/, test the parsed configuration, and reload Apache. The hostname in the request then selects the matching virtual host.
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Create a server block for each domain, normally as a separate file under the nginx site configuration area. Set a distinct server_name and root for each block. Enable the files through the distribution’s sites-enabled links or included configuration, run nginx -t, and reload nginx.
Why separate roots help operations
- A deployment for one domain cannot accidentally overwrite another domain’s index file.
- Per-site logs, uploads and ownership decisions are easier to reason about.
- You can migrate or roll back one site without copying an unrelated tree.
- A mistaken hostname or server-block change is easier to diagnose from a small, explicit mapping.
/srv versus /var/www
The Filesystem Hierarchy Standard gives /srv a semantic role for site-specific data served by the system. /var is intended for variable data such as logs, mail and spool files. For that reason, /srv/example.com is a deliberate, standards-aligned choice for a site tree. Debian and Ubuntu administrators still commonly use /var/www, and package defaults make /var/www/html familiar.
| Location or concept | Typical meaning | Useful choice when |
|---|---|---|
/var/www/html |
Debian/Ubuntu package default document root | You have one straightforward site or want to follow the installed default |
/var/www/<site>/html |
Per-site roots under the familiar web hierarchy | Your team already standardizes on /var/www and needs multiple sites |
/srv/<site>/html |
Site-specific served data, separated by domain | You want the directory location to express the FHS role of hosted content |
Active DocumentRoot or nginx root |
The configuration-defined public boundary | You are diagnosing what a request can actually reach |
There is no performance advantage inherent in the spelling of the parent directory. The relevant differences are package expectations, team conventions, backup policy, ownership and the clarity of the security boundary.
Keep private and executable material outside the public root
Assume that a file under the effective document root could become downloadable if the server permits it. Do not store secrets or deployment material there merely because the application needs them.
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Keep these outside the served directory
.envfiles and credentials- Private keys and certificates that are not meant for download
- Database dumps and backup archives
- Source-control metadata and deployment manifests
- Unpublished release bundles and build caches
- Application configuration containing connection strings
A safer site tree separates public files from private data:
/srv/example.com/
html/ # only intentionally public files
private/ # configuration and secrets
releases/ # deployment artifacts, not directly served
shared/
uploads/ # expose only through deliberate application rulesFrameworks and public subdirectories
Many frameworks generate a project directory that contains both executable application code and a directory intended for web serving, often named public/. Point Apache’s DocumentRoot or nginx’s root at that public directory. Do not point it at the project’s parent merely because that is where the source checkout lives.
CGI and executable content
Ubuntu’s Apache guidance recommends keeping CGI scripts in a directory separate from and outside DocumentRoot, with ExecCGI enabled only for that directory. Treat executable files as a separate policy decision: identify the exact directory, grant only the required execution behavior, and avoid enabling execution across a broad public tree.
Permissions, ownership and deployment boundaries
The web-service account needs read access to files it serves and traverse access to each parent directory. It does not normally need write access to the entire document root. Granting broad write permissions makes a compromise or deployment mistake more damaging.
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A practical permission model
- Let a deployment account or group own the release files.
- Give directories search and read access needed by the web-service account.
- Grant write access only to directories that must receive uploads or generated caches.
- Keep secrets owned by the account that needs them and outside the public root.
- After changing ownership or modes, test both a normal public request and an intentionally protected file.
Uploads deserve special care. If users can upload files, store them outside the public root unless direct downloads are an explicit requirement. If they must be exposed, apply file-type, naming, size and access controls in the application and server configuration rather than trusting the filename extension.
Release directories and an explicit live path
For repeatable deployments, keep immutable releases outside the public directory and make the configured root point at the currently selected public release. A deployment can prepare a new tree, verify it, switch the configured path or a controlled link, and reload the server. The public boundary remains the directory named by the server configuration; release archives never become public simply because they are stored on the same disk.
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Common problems and how to diagnose them
“I edited /var/www/html/index.html, but the browser still shows another page.”
Inspect the enabled Apache virtual hosts or nginx server blocks and identify the root selected for the requested hostname. Check that DNS, the Host header, port and TLS configuration send the request to the machine you edited. Then place a temporary, uniquely named test file in the active root and request it directly.
“The server returns 403 Forbidden.”
Verify that the service account can traverse every parent directory and read the target file. Check directory access rules, authentication, mandatory access-control policies used by your distribution, and whether an index file is required when directory listing is disabled. A 403 is different from a missing file: the path may exist but be intentionally inaccessible.
“The server returns 404 Not Found.”
Confirm the URL-to-path spelling, capitalization and trailing slash behavior. Check rewrites and try_files rules, then verify that the file exists beneath the selected root. A 404 can also mean that the request matched a default server block rather than the site you intended.
“A secret file is visible over HTTP.”
Remove it from the public tree immediately, rotate any exposed credential, and review access logs. Moving the file elsewhere is the durable fix; a deny rule can be an additional safeguard but should not be the only boundary for secrets. Recheck backups, release directories and alternate hostnames for copies.
“My configuration edit had no effect.”
Run the server’s configuration test before reloading. Confirm that you edited an enabled or included file, not an unused example. For Apache, inspect apache2ctl -S; for nginx, inspect nginx -T. A successful syntax test does not guarantee that the intended virtual host wins the hostname selection, so verify the parsed mapping as well.
A decision framework for choosing your layout
- Inventory the server. Determine whether Apache, nginx or another server is active and locate its enabled configuration.
- Identify the public boundary. Read the selected
DocumentRootorroot; do not infer it from a conventional directory name. - Count the sites. Keep one simple site in the default root if that is operationally clear; use one root per domain when hosting multiple sites.
- Choose a parent directory. Use the package convention under
/var/wwwfor familiarity, or an FHS-oriented/srvtree for site-specific data. - Separate public and private data. Point the server at an intentionally public directory, commonly a framework’s
public/, and keep credentials, source and backups elsewhere. - Set ownership deliberately. Give the service account the minimum read and traverse permissions, with write access limited to required upload or cache directories.
- Validate and reload. Run
apache2ctl configtestornginx -t, reload the correct service, and test each hostname with a known file.
What to remember
/var/www/html is a useful Debian and Ubuntu default, not a mandatory location for websites. Apache’s DocumentRoot and nginx’s root establish the directory from which requests are resolved. For a single site, the default can be perfectly adequate. For multiple sites, use a separate root per domain, keep enabled configuration distinct from content, and consider /srv when you want the filesystem location to express that the data belongs to a served site. The strongest security rule is simple: expose only the directory designed to be public, and keep everything else outside it.
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