Mongoose Configuration Options


An Access Control List (ACL) allows restrictions to be put on the list of IP addresses which have access to the web server. In the case of the Mongoose web server, the ACL is a comma separated list of IP subnets, where each subnet is prepended by either a - or a + sign. A plus sign means allow, where a minus sign means deny. If a subnet mask is omitted, such as -, this means to deny only that single IP address.

Subnet masks may vary from 0 to 32, inclusive. The default setting is to allow all accesses. On each request the full list is traversed, and the last match wins. Example: $ mongoose -access_control_list -,+192.168/16 to deny all acccesses except those from 192.168/16 subnet. Note that if the option is set, then all accesses are forbidden by default. Thus in a previous example, - part is not necessary. For example, $mongoose access_control_list + means disallow all, allow subnet 10/8 only.

To learn more about subnet masks, see the Wikipedia page on Subnetwork

Default: not set, all accesses are allowed.


Path to a file for access logs. Either full path, or relative to the mongoose executable. Default: not set, no query logging is done.


Authorization realm used in .htpasswd authorization. Default:


Path to an executable to be used use as an interpreter for all CGI scripts regardless script extension. Default: not set, Mongoose looks at [shebang line](

For example, if both PHP and perl CGIs are used, then #!/path/to/php-cgi.exe and #!/path/to/perl.exe must be first lines of the respective CGI scripts. Note that paths should be either full file paths, or file paths relative to the directory where mongoose executable is located.

If all CGIs use the same interpreter, for example they are all PHP, then cgi_interpreter option can be set to the path to php-cgi.exe executable and shebang line in the CGI scripts can be omitted. Note: PHP scripts must use php-cgi.exe, not php.exe.


All files that match cgi_pattern are treated as CGI files. Default pattern allows CGI files be anywhere. To restrict CGIs to a certain directory, use /path/to/cgi-bin/**.cgi as a pattern. Note that full file path is matched against the pattern, not the URI.

When Mongoose starts CGI program, it creates new environment for it (in contrast, usually child program inherits the environment from parent). Several environment variables however are inherited from Mongoose's environment, they are: PATH, TMP, TEMP, TMPDIR, PERLLIB, MONGOOSE_CGI. On UNIX it is also LD_LIBRARY_PATH. On Windows it is also COMSPEC, SYSTEMROOT, SystemDrive, ProgramFiles, ProgramFiles(x86), CommonProgramFiles(x86).

Default: **.cgi$|**.pl$|**.php$


Authentication file for WebDAV mutation requests: PUT, DELETE, MKCOL. The format of that file is the same as for the .htpasswd file used for digest authentication. It can be created and managed by mongoose -A command. Default: not set, WebDAV mutations are disallowed.


A directory to serve. Default: current working directory.


Enable directory listing, either yes or no. Default: yes.


Enable proxy functionality, either yes or no. If set to yes, then browsers can be configured to use Mongoose as a proxy. Default: no.


Extra mime types to recognize, in form extension1=type1,extension2=type2,.... Extension must include dot. Example: mongoose -extra_mime_types .cpp=plain/text,.java=plain/text. Default: not set.


Path to a global passwords file, either full path or relative to the mongoose executable. If set, per-directory .htpasswd files are ignored, and all requests are authorised against that file. Use mongoose -A to manage passwords, or third party utilities like htpasswd-generator. Default: not set, per-directory .htpasswd files are respected.


A pattern for the files to hide. Files that match the pattern will not show up in directory listing and return 404 Not Found if requested. Pattern must be for a file name only, not including directory name, e.g. mongoose -hide_files_patterns secret.txt|even_more_secret.txt. Default: not set.


Comma-separated list of files to be treated as directory index files. Default: index.html,index.htm,index.cgi,index.shtml,index.php


Port to listen on. Port could be prepended by the specific IP address to bind to, e.g. mongoose -listening_port Otherwise Mongoose will bind to all addresses. To enable SSL, build Mongoose with -DNS_ENABLE_SSL compilation option, and specify listening_port as ssl://PORT:SSL_CERTIFICATE.PEM. Example SSL listener: mongoose -listening_port ssl://8043:ssl_cert.pem. Note that PEM file should be in PEM format, and must have both certificate and private key in it, concatenated together. More than one listening port can be specified, separated by comma, for example mongoose -listening_port 8080,8000. Default: 8080.


Switch to given user credentials after startup. UNIX-only. This option is required when mongoose needs to bind on privileged port on UNIX, e.g.

$ sudo mongoose -listening_port 80 -run_as_user nobody

Default: not set.


Comma-separated list of URL rewrites in the form of uri_pattern=file_or_directory_path. When Mongoose receives the request, it constructs the file name to show by combining document_root and the URI. However, if the rewrite option is used and uri_pattern matches the requested URI, then document_root is ignored. Instead, file_or_directory_path is used, which should be a full path name or a path relative to the web server's current working directory. Note that uri_pattern, as all mongoose patterns, is a prefix pattern. If uri_pattern is a number, then it is treated as HTTP error code, and file_or_directory_path should be an URI to redirect to. Mongoose will issue 302 temporary redirect to the specified URI with following parameters: ?code=HTTP_ERROR_CODE&orig_uri=ORIGINAL_URI&query_string=QUERY_STRING.

If uri_pattern starts with @ symbol, then Mongoose compares it with the HOST header of the request. If they are equal, Mongoose sets document root to file_or_directory_path, implementing virtual hosts support.


# Redirect all accesses to `.doc` files to a special script
mongoose -url_rewrites **.doc$=/path/to/cgi-bin/handle_doc.cgi

# Implement user home directories support
mongoose -url_rewrites /~joe/=/home/joe/,/~bill=/home/bill/

# Redirect 404 errors to a specific error page
mongoose -url_rewrites 404=/cgi-bin/error.cgi

# Virtual hosts example: serve domain from different directory
mongoose -url_rewrites

Default: not set.

Author(s): Monika Florek-Jasinska , Raphael Schaller
autogenerated on Thu Jun 25 2020 03:46:05