Apache2 is a popular open-source web server software used for hosting websites and applications on the internet. It's reliable, secure and customizable.
Packages and Binaries:
apache2
The Apache HTTP Server Project’s goal is to build a secure, efficient and extensible HTTP server as standards-compliant open source software. The result has long been the number one web server on the Internet.
Installing this package results in a full installation, including the configuration files, init scripts and support scripts.
Installed size:565 KBHow to install:sudo apt install apache2
Dependencies:
apache2-bin
apache2-data
apache2-utils
init-system-helpers
lsb-base
media-types
perl
procps
a2disconf
Enable or disable an apache2 configuration file
:~# man a2disconf
A2ENCONF(8) System Manager's Manual A2ENCONF(8)
NAME
a2enconf, a2disconf - enable or disable an apache2 configuration file
SYNOPSIS
a2enconf [-q|--quiet] [-m|--maintmode] [ configuration ]
a2disconf [-q|--quiet] [-m|--maintmode] [-p|--purge] [ configuration ]
DESCRIPTION
This manual page documents briefly the a2enconf and a2disconf commands.
a2enconf is a script that enables the specified configuration file
within the apache2 configuration. It does this by creating symlinks
within /etc/apache2/conf-enabled. Likewise, a2disconf disables a spe-
cific configuration part by removing those symlinks. It is not an er-
ror to enable a configuration which is already enabled, or to disable
one which is already disabled.
Note that many configuration file may have a dependency to specific
modules. Unlike module dependencies, these are not resolved automati-
cally. Configuration fragments stored in the conf-available directory
are considered non-essential or being installed and manged by reverse
dependencies (e.g. web scripts).
OPTIONS
-q, --quiet
Don't show informative messages.
-m, --maintmode
Enables the maintainer mode, that is the program invocation is
effectuated automatically by a maintainer script. This switch
should not be used by end users.
-p, --purge
When disabling a module, purge all traces of the module in the
internal state data base.
EXIT STATUS
a2enconf and a2disconf exit with status 0 if all configurations are
processed successfully, 1 if errors occur, 2 if an invalid option was
used.
EXAMPLES
a2enconf security
a2disconf charset
Enables Apache security directives stored in the security configuration
files, and disables the charset configuration.
FILES
/etc/apache2/conf-available
Directory with files giving information on available configura-
tion files.
/etc/apache2/conf-enabled
Directory with links to the files in conf-available for enabled
configuration files.
SEE ALSO
apache2ctl(8), a2enmod(8), a2dismod(8), a2ensite(8), a2dissite(8).
AUTHOR
This manual page was written by Arno Toell <> for the
Debian GNU/Linux distribution, as it is a Debian-specific script with
the package.
14 February 2012 A2ENCONF(8)
a2dismod
Enable or disable an apache2 module
:~# man a2dismod
A2ENMOD(8) System Manager's Manual A2ENMOD(8)
NAME
a2enmod, a2dismod - enable or disable an apache2 module
SYNOPSIS
a2enmod [-q|--quiet] [-m|--maintmode] [ module ]
a2dismod [-q|--quiet] [-f|--force] [-m|--maintmode] [-p|--purge] [ mod-
ule ]
DESCRIPTION
This manual page documents briefly the a2enmod and a2dismod commands.
a2enmod is a script that enables the specified module within the
apache2 configuration. It does this by creating symlinks within
/etc/apache2/mods-enabled. Likewise, a2dismod disables a module by re-
moving those symlinks. It is not an error to enable a module which is
already enabled, or to disable one which is already disabled.
Note that many modules have, in addition to a .load file, an associated
.conf file. Enabling the module puts the configuration directives in
the .conf file as directives into the main server context of apache2.
OPTIONS
-q, --quiet
Don't show informative messages.
-f, --force
When disabling a module, also cascade disables all modules that
depends on it.
-m, --maintmode
Enables the maintainer mode, that is the program invocation is
effectuated automatically by a maintainer script. This switch
should not be used by end users.
-p, --purge
When disabling a module, purge all traces of the module in the
internal state data base.
EXIT STATUS
a2enmod and a2dismod exit with status 0 if all modules are processed
successfully, 1 if errors occur, 2 if an invalid option was used.
EXAMPLES
a2enmod imagemap
a2dismod mime_magic
Enables the mod_imagemap module, and disables the mod_mime_magic mod-
ule.
FILES
/etc/apache2/mods-available
Directory with files giving information on available modules.
/etc/apache2/mods-enabled
Directory with links to the files in mods-available for enabled
modules.
SEE ALSO
apache2ctl(8), a2enconf(8), a2disconf(8), a2ensite(8), a2dissite(8).
AUTHOR
This manual page was written by Daniel Stone <> for the
Debian GNU/Linux distribution, as it is a Debian-specific script with
the package.
12 October 2006 A2ENMOD(8)
a2dissite
Enable or disable an apache2 site / virtual host
:~# man a2dissite
A2ENSITE(8) System Manager's Manual A2ENSITE(8)
NAME
a2ensite, a2dissite - enable or disable an apache2 site / virtual host
SYNOPSIS
a2ensite [-q|--quiet] [-m|--maintmode] [ site ]
a2dissite [-q|--quiet] [-m|--maintmode] [-p|--purge] [ site ]
DESCRIPTION
This manual page documents briefly the a2ensite and a2dissite commands.
a2ensite is a script that enables the specified site (which contains a
<VirtualHost> block) within the apache2 configuration. It does this by
creating symlinks within /etc/apache2/sites-enabled. Likewise, a2dis-
site disables a site by removing those symlinks. It is not an error to
enable a site which is already enabled, or to disable one which is al-
ready disabled.
Apache treats the very first virtual host enabled specially as every
request not matching any actual directive is being redirected there.
Thus it should be called 000-default in order to sort before the re-
maining hosts to be loaded first.
OPTIONS
-q, --quiet
Don't show informative messages.
-m, --maintmode
Enables the maintainer mode, that is the program invocation is
effectuated automatically by a maintainer script. This switch
should not be used by end users.
-p, --purge
When disabling a module, purge all traces of the module in the
internal state data base.
EXIT STATUS
a2ensite and a2dissite exit with status 0 if all sites are processed
successfully, 1 if errors occur, 2 if an invalid option was used.
EXAMPLES
a2dissite 000-default
Disables the default site.
FILES
/etc/apache2/sites-available
Directory with files giving information on available sites.
/etc/apache2/sites-enabled
Directory with links to the files in sites-available for enabled
sites.
SEE ALSO
apache2ctl(8), a2enmod(8), a2dismod(8), a2enconf(8), a2disconf(8).
AUTHOR
This manual page was written by Stefan Fritsch <> (based
on the a2enmod manual page by Daniel Stone <>) for the
Debian GNU/Linux distribution.
8 June 2007 A2ENSITE(8)
a2enconf
Enable or disable an apache2 configuration file
:~# man a2enconf
A2ENCONF(8) System Manager's Manual A2ENCONF(8)
NAME
a2enconf, a2disconf - enable or disable an apache2 configuration file
SYNOPSIS
a2enconf [-q|--quiet] [-m|--maintmode] [ configuration ]
a2disconf [-q|--quiet] [-m|--maintmode] [-p|--purge] [ configuration ]
DESCRIPTION
This manual page documents briefly the a2enconf and a2disconf commands.
a2enconf is a script that enables the specified configuration file
within the apache2 configuration. It does this by creating symlinks
within /etc/apache2/conf-enabled. Likewise, a2disconf disables a spe-
cific configuration part by removing those symlinks. It is not an er-
ror to enable a configuration which is already enabled, or to disable
one which is already disabled.
Note that many configuration file may have a dependency to specific
modules. Unlike module dependencies, these are not resolved automati-
cally. Configuration fragments stored in the conf-available directory
are considered non-essential or being installed and manged by reverse
dependencies (e.g. web scripts).
OPTIONS
-q, --quiet
Don't show informative messages.
-m, --maintmode
Enables the maintainer mode, that is the program invocation is
effectuated automatically by a maintainer script. This switch
should not be used by end users.
-p, --purge
When disabling a module, purge all traces of the module in the
internal state data base.
EXIT STATUS
a2enconf and a2disconf exit with status 0 if all configurations are
processed successfully, 1 if errors occur, 2 if an invalid option was
used.
EXAMPLES
a2enconf security
a2disconf charset
Enables Apache security directives stored in the security configuration
files, and disables the charset configuration.
FILES
/etc/apache2/conf-available
Directory with files giving information on available configura-
tion files.
/etc/apache2/conf-enabled
Directory with links to the files in conf-available for enabled
configuration files.
SEE ALSO
apache2ctl(8), a2enmod(8), a2dismod(8), a2ensite(8), a2dissite(8).
AUTHOR
This manual page was written by Arno Toell <> for the
Debian GNU/Linux distribution, as it is a Debian-specific script with
the package.
14 February 2012 A2ENCONF(8)
a2enmod
Enable or disable an apache2 module
:~# man a2enmod
A2ENMOD(8) System Manager's Manual A2ENMOD(8)
NAME
a2enmod, a2dismod - enable or disable an apache2 module
SYNOPSIS
a2enmod [-q|--quiet] [-m|--maintmode] [ module ]
a2dismod [-q|--quiet] [-f|--force] [-m|--maintmode] [-p|--purge] [ mod-
ule ]
DESCRIPTION
This manual page documents briefly the a2enmod and a2dismod commands.
a2enmod is a script that enables the specified module within the
apache2 configuration. It does this by creating symlinks within
/etc/apache2/mods-enabled. Likewise, a2dismod disables a module by re-
moving those symlinks. It is not an error to enable a module which is
already enabled, or to disable one which is already disabled.
Note that many modules have, in addition to a .load file, an associated
.conf file. Enabling the module puts the configuration directives in
the .conf file as directives into the main server context of apache2.
OPTIONS
-q, --quiet
Don't show informative messages.
-f, --force
When disabling a module, also cascade disables all modules that
depends on it.
-m, --maintmode
Enables the maintainer mode, that is the program invocation is
effectuated automatically by a maintainer script. This switch
should not be used by end users.
-p, --purge
When disabling a module, purge all traces of the module in the
internal state data base.
EXIT STATUS
a2enmod and a2dismod exit with status 0 if all modules are processed
successfully, 1 if errors occur, 2 if an invalid option was used.
EXAMPLES
a2enmod imagemap
a2dismod mime_magic
Enables the mod_imagemap module, and disables the mod_mime_magic mod-
ule.
FILES
/etc/apache2/mods-available
Directory with files giving information on available modules.
/etc/apache2/mods-enabled
Directory with links to the files in mods-available for enabled
modules.
SEE ALSO
apache2ctl(8), a2enconf(8), a2disconf(8), a2ensite(8), a2dissite(8).
AUTHOR
This manual page was written by Daniel Stone <> for the
Debian GNU/Linux distribution, as it is a Debian-specific script with
the package.
12 October 2006 A2ENMOD(8)
a2ensite
Enable or disable an apache2 site / virtual host
:~# man a2ensite
A2ENSITE(8) System Manager's Manual A2ENSITE(8)
NAME
a2ensite, a2dissite - enable or disable an apache2 site / virtual host
SYNOPSIS
a2ensite [-q|--quiet] [-m|--maintmode] [ site ]
a2dissite [-q|--quiet] [-m|--maintmode] [-p|--purge] [ site ]
DESCRIPTION
This manual page documents briefly the a2ensite and a2dissite commands.
a2ensite is a script that enables the specified site (which contains a
<VirtualHost> block) within the apache2 configuration. It does this by
creating symlinks within /etc/apache2/sites-enabled. Likewise, a2dis-
site disables a site by removing those symlinks. It is not an error to
enable a site which is already enabled, or to disable one which is al-
ready disabled.
Apache treats the very first virtual host enabled specially as every
request not matching any actual directive is being redirected there.
Thus it should be called 000-default in order to sort before the re-
maining hosts to be loaded first.
OPTIONS
-q, --quiet
Don't show informative messages.
-m, --maintmode
Enables the maintainer mode, that is the program invocation is
effectuated automatically by a maintainer script. This switch
should not be used by end users.
-p, --purge
When disabling a module, purge all traces of the module in the
internal state data base.
EXIT STATUS
a2ensite and a2dissite exit with status 0 if all sites are processed
successfully, 1 if errors occur, 2 if an invalid option was used.
EXAMPLES
a2dissite 000-default
Disables the default site.
FILES
/etc/apache2/sites-available
Directory with files giving information on available sites.
/etc/apache2/sites-enabled
Directory with links to the files in sites-available for enabled
sites.
SEE ALSO
apache2ctl(8), a2enmod(8), a2dismod(8), a2enconf(8), a2disconf(8).
AUTHOR
This manual page was written by Stefan Fritsch <> (based
on the a2enmod manual page by Daniel Stone <>) for the
Debian GNU/Linux distribution.
8 June 2007 A2ENSITE(8)
a2query
Retrieve runtime configuration from a local Apache 2 HTTP server
:~# a2query --help
/usr/sbin/a2query version [unknown] calling Getopt::Std::getopts (version 1.13 [paranoid]),
running under Perl version 5.36.0.
Usage: a2query [-OPTIONS [-MORE_OPTIONS]] [--] [PROGRAM_ARG1 ...]
The following single-character options are accepted:
With arguments: -m -s -c
Boolean (without arguments): -h -a -v -M -d -q
Options may be merged together. -- stops processing of options.
Space is not required between options and their arguments.
For more details run
perldoc -F /usr/sbin/a2query
[Now continuing due to backward compatibility and excessive paranoia.
See 'perldoc Getopt::Std' about $Getopt::Std::STANDARD_HELP_VERSION.]
apache2ctl
Apache HTTP server control interface
:~# apache2ctl -h
Usage: /usr/sbin/apache2 [-D name] [-d directory] [-f file]
[-C "directive"] [-c "directive"]
[-k start|restart|graceful|graceful-stop|stop]
[-v] [-V] [-h] [-l] [-L] [-t] [-T] [-S] [-X]
Options:
-D name : define a name for use in <IfDefine name> directives
-d directory : specify an alternate initial ServerRoot
-f file : specify an alternate ServerConfigFile
-C "directive" : process directive before reading config files
-c "directive" : process directive after reading config files
-e level : show startup errors of level (see LogLevel)
-E file : log startup errors to file
-v : show version number
-V : show compile settings
-h : list available command line options (this page)
-l : list compiled in modules
-L : list available configuration directives
-t -D DUMP_VHOSTS : show parsed vhost settings
-t -D DUMP_RUN_CFG : show parsed run settings
-S : a synonym for -t -D DUMP_VHOSTS -D DUMP_RUN_CFG
-t -D DUMP_MODULES : show all loaded modules
-M : a synonym for -t -D DUMP_MODULES
-t -D DUMP_INCLUDES: show all included configuration files
-t : run syntax check for config files
-T : start without DocumentRoot(s) check
-X : debug mode (only one worker, do not detach)
apachectl
Apache HTTP server control interface
:~# apachectl -h
Usage: /usr/sbin/apache2 [-D name] [-d directory] [-f file]
[-C "directive"] [-c "directive"]
[-k start|restart|graceful|graceful-stop|stop]
[-v] [-V] [-h] [-l] [-L] [-t] [-T] [-S] [-X]
Options:
-D name : define a name for use in <IfDefine name> directives
-d directory : specify an alternate initial ServerRoot
-f file : specify an alternate ServerConfigFile
-C "directive" : process directive before reading config files
-c "directive" : process directive after reading config files
-e level : show startup errors of level (see LogLevel)
-E file : log startup errors to file
-v : show version number
-V : show compile settings
-h : list available command line options (this page)
-l : list compiled in modules
-L : list available configuration directives
-t -D DUMP_VHOSTS : show parsed vhost settings
-t -D DUMP_RUN_CFG : show parsed run settings
-S : a synonym for -t -D DUMP_VHOSTS -D DUMP_RUN_CFG
-t -D DUMP_MODULES : show all loaded modules
-M : a synonym for -t -D DUMP_MODULES
-t -D DUMP_INCLUDES: show all included configuration files
-t : run syntax check for config files
-T : start without DocumentRoot(s) check
-X : debug mode (only one worker, do not detach)
apache2-bin
The Apache HTTP Server Project’s goal is to build a secure, efficient and extensible HTTP server as standards-compliant open source software. The result has long been the number one web server on the Internet.
This package contains the binaries only and does not set up a working web-server instance. Install the “apache2” package to get a fully working instance.
Installed size:4.89 MBHow to install:sudo apt install apache2-bin
:~# apache2 -h
Usage: apache2 [-D name] [-d directory] [-f file]
[-C "directive"] [-c "directive"]
[-k start|restart|graceful|graceful-stop|stop]
[-v] [-V] [-h] [-l] [-L] [-t] [-T] [-S] [-X]
Options:
-D name : define a name for use in <IfDefine name> directives
-d directory : specify an alternate initial ServerRoot
-f file : specify an alternate ServerConfigFile
-C "directive" : process directive before reading config files
-c "directive" : process directive after reading config files
-e level : show startup errors of level (see LogLevel)
-E file : log startup errors to file
-v : show version number
-V : show compile settings
-h : list available command line options (this page)
-l : list compiled in modules
-L : list available configuration directives
-t -D DUMP_VHOSTS : show parsed vhost settings
-t -D DUMP_RUN_CFG : show parsed run settings
-S : a synonym for -t -D DUMP_VHOSTS -D DUMP_RUN_CFG
-t -D DUMP_MODULES : show all loaded modules
-M : a synonym for -t -D DUMP_MODULES
-t -D DUMP_INCLUDES: show all included configuration files
-t : run syntax check for config files
-T : start without DocumentRoot(s) check
-X : debug mode (only one worker, do not detach)
apache2-data
The Apache HTTP Server Project’s goal is to build a secure, efficient and extensible HTTP server as standards-compliant open source software. The result has long been the number one web server on the Internet.
This package contains architecture-independent common files such as icons, error pages and static index files.
Installed size:849 KBHow to install:sudo apt install apache2-data
apache2-dev
The Apache HTTP Server Project’s goal is to build a secure, efficient and extensible HTTP server as standards-compliant open source software. The result has long been the number one web server on the Internet.
This package provides development headers and the apxs2 binary for the Apache 2 HTTP server, useful to develop and link third party additions to the Debian Apache HTTP server package.
It also provides dh_apache2 and dh sequence addons useful to install various Debian Apache2 extensions with debhelper. It supports
Apache 2 module configurations and shared objects
Site configuration files
Global configuration files
Installed size:1.06 MBHow to install:sudo apt install apache2-dev
Register configuration snippets to the Apache web server
:~# dh_apache2 -h
Usage: dh_apache2 [options]
dh_apache2 is a part of debhelper. See debhelper(7)
and dh_apache2(1) for complete usage instructions.
apache2-doc
The Apache HTTP Server Project’s goal is to build a secure, efficient and extensible HTTP server as standards-compliant open source software. The result has long been the number one web server on the Internet.
This package provides the documentation for the Apache 2 HTTP server. The documentation is shipped in HTML format and can be accessed from a local running Apache HTTP server instance or by browsing the file system directly.
Installed size:24.53 MBHow to install:sudo apt install apache2-doc
apache2-ssl-dev
The Apache HTTP Server Project’s goal is to build a secure, efficient and extensible HTTP server as standards-compliant open source software. The result has long been the number one web server on the Internet.
This package provides the development header and the dependencies for modules that interact with mod_ssl’s internal openssl state.
Installed size:13 KBHow to install:sudo apt install apache2-ssl-dev
Dependencies:
apache2-dev
libssl-dev
apache2-suexec-custom
Provides a customizable version of the suexec helper program for mod_suexec. This is not the version from upstream, but can be configured with a configuration file.
If you do not need non-standard document root or userdir settings, it is recommended that you use the standard suexec helper program from the apache2-suexec-pristine package instead.
Installed size:184 KBHow to install:sudo apt install apache2-suexec-custom
Dependencies:
apache2-bin
libc6
apache2-suexec-pristine
Provides the standard suexec helper program for mod_suexec. This version is compiled with document root /var/www and userdir suffix public_html. If you need different settings, use the package apache2-suexec-custom.
Installed size:174 KBHow to install:sudo apt install apache2-suexec-pristine
Dependencies:
apache2-bin
libc6
apache2-utils
Provides some add-on programs useful for any web server. These include:
ab (Apache benchmark tool)
fcgistarter (Start a FastCGI program)
logresolve (Resolve IP addresses to hostnames in logfiles)
htpasswd (Manipulate basic authentication files)
htdigest (Manipulate digest authentication files)
htdbm (Manipulate basic authentication files in DBM format, using APR)
htcacheclean (Clean up the disk cache)
rotatelogs (Periodically stop writing to a logfile and open a new one)
split-logfile (Split a single log including multiple vhosts)
checkgid (Checks whether the caller can setgid to the specified group)
check_forensic (Extract mod_log_forensic output from Apache log files)
httxt2dbm (Generate dbm files for use with RewriteMap)
Installed size:429 KBHow to install:sudo apt install apache2-utils
Dependencies:
libapr1
libaprutil1
libc6
libcrypt1
libssl3
ab
Apache HTTP server benchmarking tool
:~# ab --help
ab: wrong number of arguments
Usage: ab [options] [http[s]://]hostname[:port]/path
Options are:
-n requests Number of requests to perform
-c concurrency Number of multiple requests to make at a time
-t timelimit Seconds to max. to spend on benchmarking
This implies -n 50000
-s timeout Seconds to max. wait for each response
Default is 30 seconds
-b windowsize Size of TCP send/receive buffer, in bytes
-B address Address to bind to when making outgoing connections
-p postfile File containing data to POST. Remember also to set -T
-u putfile File containing data to PUT. Remember also to set -T
-T content-type Content-type header to use for POST/PUT data, eg.
'application/x-www-form-urlencoded'
Default is 'text/plain'
-v verbosity How much troubleshooting info to print
-w Print out results in HTML tables
-i Use HEAD instead of GET
-x attributes String to insert as table attributes
-y attributes String to insert as tr attributes
-z attributes String to insert as td or th attributes
-C attribute Add cookie, eg. 'Apache=1234'. (repeatable)
-H attribute Add Arbitrary header line, eg. 'Accept-Encoding: gzip'
Inserted after all normal header lines. (repeatable)
-A attribute Add Basic WWW Authentication, the attributes
are a colon separated username and password.
-P attribute Add Basic Proxy Authentication, the attributes
are a colon separated username and password.
-X proxy:port Proxyserver and port number to use
-V Print version number and exit
-k Use HTTP KeepAlive feature
-d Do not show percentiles served table.
-S Do not show confidence estimators and warnings.
-q Do not show progress when doing more than 150 requests
-l Accept variable document length (use this for dynamic pages)
-g filename Output collected data to gnuplot format file.
-e filename Output CSV file with percentages served
-r Don't exit on socket receive errors.
-m method Method name
-h Display usage information (this message)
-I Disable TLS Server Name Indication (SNI) extension
-Z ciphersuite Specify SSL/TLS cipher suite (See openssl ciphers)
-f protocol Specify SSL/TLS protocol
(SSL2, TLS1, TLS1.1, TLS1.2, TLS1.3 or ALL)
-E certfile Specify optional client certificate chain and private key
check_forensic
Tool to extract mod_log_forensic output from apache log files
:~# man check_forensic
check_forensic(8) System Manager's Manual check_forensic(8)
NAME
check_forensic - tool to extract mod_log_forensic output from apache
log files
SYNOPSIS
check_forensic <log_file>
DESCRIPTION
chech_forensic is a simple shell script designed to help apache admin-
istrators to extract mod_log_forensic output from apache2 log files.
It checks the forensic log for requests that did not complete and out-
puts the request log for each one.
AUTHOR
This manual page was written by Fabio M. Di Nitto <
bione.net>, for the Debian GNU/Linux system (but may be used by oth-
ers).
check_forensic(8)
checkgid
Checks the gid
:~# man checkgid
CHECKGID(8) System Manager's Manual CHECKGID(8)
NAME
checkgid - checks the gid
SYNOPSIS
checkgid group
DESCRIPTION
This manual page documents briefly the checkgid command.
checkgid is a program that checks whether it can setgid to the group
specified. This is to see if it is a valid group for apache2 to use at
runtime. If the user (should be run as superuser) is in that group, or
can setgid to it, it will return 0.
AUTHOR
This manual page was written by Daniel Stone <> for the
Debian GNU/Linux distribution, as the original did not have a manpage.
November 3rd, 2001 CHECKGID(8)
fcgistarter
Start a FastCGI program
:~# fcgistarter -h
fcgistarter: illegal option -- h
usage: fcgistarter -c <command> -p <port> [-i <interface> -N <num>]
If an interface is not specified, any available will be used.
htcacheclean
Clean up the disk cache
:~# htcacheclean --help
htcacheclean error: Option -p must be specified
htcacheclean -- program for cleaning the disk cache.
Usage: htcacheclean [-Dvtrn] -pPATH [-lLIMIT] [-LLIMIT] [-PPIDFILE]
htcacheclean [-nti] -dINTERVAL -pPATH [-lLIMIT] [-LLIMIT] [-PPIDFILE]
htcacheclean [-Dvt] -pPATH URL ...
Options:
-d Daemonize and repeat cache cleaning every INTERVAL minutes.
This option is mutually exclusive with the -D, -v and -r
options.
-D Do a dry run and don't delete anything. This option is mutually
exclusive with the -d option. When doing a dry run and deleting
directories with -t, the inodes reported deleted in the stats
cannot take into account the directories deleted, and will be
marked as an estimate.
-v Be verbose and print statistics. This option is mutually
exclusive with the -d option.
-r Clean thoroughly. This assumes that the Apache web server is
not running. This option is mutually exclusive with the -d
option and implies -t.
-n Be nice. This causes slower processing in favour of other
processes.
-t Delete all empty directories. By default only cache files are
removed, however with some configurations the large number of
directories created may require attention.
-p Specify PATH as the root directory of the disk cache.
-P Specify PIDFILE as the file to write the pid to.
-R Specify amount to round sizes up to.
-l Specify LIMIT as the total disk cache size limit. Attach 'K',
'M' or 'G' to the number for specifying KBytes, MBytes or
GBytes.
-L Specify LIMIT as the total disk cache inode limit. 'K', 'M' or
'G' suffix can also be used.
-i Be intelligent and run only when there was a modification of
the disk cache. This option is only possible together with the
-d option.
-a List the URLs currently stored in the cache. Variants of the
same URL will be listed once for each variant.
-A List the URLs currently stored in the cache, along with their
attributes in the following order: url, header size, body size,
status, entity version, date, expiry, request time,
response time, body present, head request.
Should an URL be provided on the command line, the URL will be
deleted from the cache. A reverse proxied URL is made up as follows:
http://<hostname>:<port><path>?[query]. So, for the path "/" on the
host "localhost" and port 80, the URL to delete becomes
"http://localhost:80/?". Note the '?' in the URL must always be
specified explicitly, whether a query string is present or not.
htdbm
Manipulate DBM password databases
:~# htdbm -h
htdbm: illegal option -- h
htdbm -- program for manipulating DBM password databases.
Usage: htdbm [-cimBdpstvx] [-C cost] [-TDBTYPE] database username
-b[cmBdptsv] [-C cost] [-TDBTYPE] database username password
-n[imBdpst] [-C cost] username
-nb[mBdpst] [-C cost] username password
-v[imBdps] [-C cost] [-TDBTYPE] database username
-vb[mBdps] [-C cost] [-TDBTYPE] database username password
-x [-TDBTYPE] database username
-l [-TDBTYPE] database
Options:
-c Create a new database.
-n Don't update database; display results on stdout.
-b Use the password from the command line rather than prompting for it.
-i Read password from stdin without verification (for script usage).
-m Force MD5 encryption of the password (default).
-B Force BCRYPT encryption of the password (very secure).
-C Set the computing time used for the bcrypt algorithm
(higher is more secure but slower, default: 5, valid: 4 to 31).
-d Force CRYPT encryption of the password (8 chars max, insecure).
-s Force SHA encryption of the password (insecure).
-p Do not encrypt the password (plaintext, insecure).
-T DBM Type (SDBM|GDBM|DB|default).
-l Display usernames from database on stdout.
-v Verify the username/password.
-x Remove the username record from database.
-t The last param is username comment.
The SHA algorithm does not use a salt and is less secure than the MD5 algorithm.
htdigest
Manage user files for digest authentication
:~# htdigest -h
Usage: htdigest [-c] passwordfile realm username
The -c flag creates a new file.
htpasswd
Manage user files for basic authentication
:~# htpasswd -h
htpasswd: illegal option -- h
Usage:
htpasswd [-cimBdpsDv] [-C cost] passwordfile username
htpasswd -b[cmBdpsDv] [-C cost] passwordfile username password
htpasswd -n[imBdps] [-C cost] username
htpasswd -nb[mBdps] [-C cost] username password
-c Create a new file.
-n Don't update file; display results on stdout.
-b Use the password from the command line rather than prompting for it.
-i Read password from stdin without verification (for script usage).
-m Force MD5 encryption of the password (default).
-B Force bcrypt encryption of the password (very secure).
-C Set the computing time used for the bcrypt algorithm
(higher is more secure but slower, default: 5, valid: 4 to 17).
-d Force CRYPT encryption of the password (8 chars max, insecure).
-s Force SHA encryption of the password (insecure).
-p Do not encrypt the password (plaintext, insecure).
-D Delete the specified user.
-v Verify password for the specified user.
On other systems than Windows and NetWare the '-p' flag will probably not work.
The SHA algorithm does not use a salt and is less secure than the MD5 algorithm.
httxt2dbm
Generate dbm files for use with RewriteMap
:~# httxt2dbm -h
httxt2dbm: illegal option -- h
Error: Parsing Arguments Failed
httxt2dbm -- Program to Create DBM Files for use by RewriteMap
Usage: httxt2dbm [-v] [-f format] -i SOURCE_TXT -o OUTPUT_DBM
Options:
-v More verbose output
-i Source Text File. If '-', use stdin.
-o Output DBM.
-f DBM Format. If not specified, will use the APR Default.
GDBM for GDBM files (available)
SDBM for SDBM files (available)
DB for berkeley DB files (available)
NDBM for NDBM files (unavailable)
default for the default DBM type
logresolve
Resolve IP-addresses to hostnames in Apache log files
:~# logresolve -h
logresolve: illegal option -- h
logresolve -- Resolve IP-addresses to hostnames in Apache log files.
Usage: logresolve [-s STATFILE] [-c]
Options:
-s Record statistics to STATFILE when finished.
-c Perform double lookups when resolving IP addresses.
rotatelogs
Piped logging program to rotate Apache logs
:~# rotatelogs -h
rotatelogs: illegal option -- h
Usage: rotatelogs [-v] [-l] [-L linkname] [-p prog] [-f] [-D] [-t] [-e] [-c] [-n number] <logfile> {<rotation time in seconds>|<rotation size>(B|K|M|G)} [offset minutes from UTC]
Add this:
TransferLog "|rotatelogs /some/where 86400"
or
TransferLog "|rotatelogs /some/where 5M"
to httpd.conf. By default, the generated name will be
<logfile>.nnnn where nnnn is the system time at which the log
nominally starts (N.B. if using a rotation time, the time will
always be a multiple of the rotation time, so you can synchronize
cron scripts with it). If <logfile> contains strftime conversion
specifications, those will be used instead. At the end of each
rotation time or when the file size is reached a new log is
started.
Options:
-v Verbose operation. Messages are written to stderr.
-l Base rotation on local time instead of UTC.
-L path Create hard link from current log to specified path.
-p prog Run specified program after opening a new log file. See below.
-f Force opening of log on program start.
-D Create parent directories of log file.
-t Truncate logfile instead of rotating, tail friendly.
-e Echo log to stdout for further processing.
-c Create log even if it is empty.
-n num Rotate file by adding suffixes '.1', '.2', ..., '.num'.
The program for '-p' is invoked as "[prog] <curfile> [<prevfile>]"
where <curfile> is the filename of the newly opened logfile, and
<prevfile>, if given, is the filename of the previously used logfile.
split-logfile
Split combined virtual hosts access log into one file per virtual host
:~# man split-logfile
SPLIT-LOGFILE(8) split-logfile SPLIT-LOGFILE(8)
NAME
split-logfile - Split combined virtual hosts access log into one file
per virtual host
SYNOPSIS
split-logfile < logfile
SUMMARY
This script will take a combined Web server access log file and break
its contents into separate files. It assumes that the first field of
each line is the virtual host identity (put there by "%v"), and that
the logfiles should be named that+".log" in the current directory.
The combined log file is read from stdin. Records read will be ap-
pended to any existing log files.
EXAMPLES
split-logfile < /var/log/apache2/other_vhosts_access.log
Apache HTTP Server 2009-12-06 SPLIT-LOGFILE(8)
libapache2-mod-md
This is a transitional package to apache2 for users of libapache2-mod-md. It can be safely removed after the installation is complete.
Installed size:6 KBHow to install:sudo apt install libapache2-mod-md
Dependencies:
apache2
libapache2-mod-proxy-uwsgi
This is a transitional package to apache2 for users of libapache2-mod-proxy-uwsgi. It can be safely removed after the installation is complete.
Installed size:10 KBHow to install:sudo apt install libapache2-mod-proxy-uwsgi
