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gatling(8)		    System Manager's Manual		    gatling(8)

NAME
       gatling - high performance file server

SYNOPSIS
       gatling	[-hHnvVtdDfFUlaEe]  [-i	bind-to-ip] [-p	bind-to-port] [-T sec-
       onds]
	       [-u   uid]   [-c	  dir]	 [-w   workgroup]   [-P	  bytes]   [-O
       [f/]ip/port/regex]
	       [-r redir-url] [-X timeout,sshd]

DESCRIPTION
       gatling	is  a HTTP and FTP server.  It will export the current working
       directory to the	world.

       Use -i 127.0.0.1	to only	bind to	a certain IP address.
	     F to turn off HTTP.
       Use -H

       Use -p 81 to bind HTTP to a different TCP port than 80.	Use -f -p 2100
       to bind FTP to a	different TCP port than	21.  When running as non-root,
       the default ports are 8000 and 2121, respectively.

       Use -u nobody to	run under a different UID than root.  This is done af-
       ter binding the server ports, so	it is safe to use -u and still bind to
       port 80 -- in fact, it is recommended not to run	gatling	as superuser.

       Use -c /home/www	to chdir and chroot to another directory than the cur-
       rent  working  directory.  It is	recommended to run gatling in a	chroot
       environment to lessen the impact	of possible future security problems.

       Use -P 2M to activate prefetching mode.	Gatling	will  then  make  sure
       this  much  data	 is prefetched.	 This can reduce disk activity and im-
       prove throughput	dramatically if	your OS	I/O scheduler is not state  of
       the art and you are serving several large files from the	same hard disk
       to different downloaders.  Without prefetching, the disk	will otherwise
       waste time moving the disk head between the two large files.

       Use  -f	to enable anonymous FTP	(default) or -F	to disable it.	Use -U
       to disable uploads altogether (normally gatling	will  allow  file  up-
       loads).	 Gatling  only allows uploads to world writable	directories to
       prevent accidental upload permission, and the files will	not  be	 world
       readable	 (use  -a if you want them world readable).  Gatling will only
       allow downloads of world	readable files,	that's why this	switch is  im-
       portant.	  These	options	are only available if gatling is compiled with
       SUPPORT_FTP defined.

       Use -e to enable	encryption support (https) or -E to disable it.	 These
       options	are  only  available if	gatling	is compiled with SUPPORT_HTTPS
       defined.

       Use -l to make gatling always ask for FTP passwords.  Normally  gatling
       does  not,  which  confuses  some  stupid  clients.   This option makes
       gatling ask for (and ignore) a password.

       Use -d to enable	directory index	generation for HTTP (listing  directo-
       ries  is	always possible	in FTP), -D to disable.	 It is harder to acci-
       dentally	publish	a document if the attacker can not find	out  the  file
       name through directory listings.

       Use  -t	to  enable transparent proxy mode.  Normally, gatling will re-
       place the port in Host: HTTP headers and	FTP virtual  host  names  with
       the actual port the connection arrived at.  This	is important for secu-
       rity (in	case you have a	secret intranet	web site on port 81, which  is
       blocked	at  the	firewall).  However, when using	a firewall to redirect
       connections to gatling, it may make more	sense to keep the  ports  from
       the HTTP	Host: headers for virtual hosting.

       Use  -v	to  enable  virtual hosting mode, -V to	disable	it.  Normally,
       when a  HTTP  connection	 asks  for  /foo.html  and  carries  a	"Host:
       www.fefe.de:80"	header,	 gatling  will	chdir to "www.fefe.de:80".  If
       "www.fefe.de:80"	does not exist,	gatling	will chdir to  "default".   If
       this  also does not exist, and neither -v or -V are given, gatling will
       serve "foo.html"	from the current  working  directory.	Specifying  -v
       will make sure that no file is ever served from the current working di-
       rectory,	only from the virtual host directories or from default.	 Spec-
       ifying  -V  means  that gatling will not	try to chdir at	all and	always
       serve from the current working directory.

       Use -T 600 to set the timeout for HTTP and FTP data connections	to  10
       minutes (600 seconds, default is	23 seconds).  Use -f -T	600 to set the
       timeout for FTP control connections (default is 600 seconds).

       If you use -r  http://master.example.com/  on  mirror.example.com,  and
       someone	asks for a file	that does not exist, gatling will not create a
       404 error but a redirect	to the same file on master.example.com.

       Use -X timeout,sshd to enable SSH passthrough mode.   If	 someone  con-
       nects  on  the  SSL socket, but does not	say anything for timeout (sane
       value: 2-10) seconds, then gatling will run an sshd in inetd mode  with
       that socket.  sshd is the full path name	to sshd, plus the command line
       you want	to give	it, if any.  gatling automatically appends -i, so  use
       this for	example	for -u0	to disable DNS lookups.

       Use  -O	[flag/]ip/port/regex  to enable	proxy mode, also used for SCGI
       and FastCGI.  To	use the	proxy mode, there has to be a ".proxy" file in
       the  root  of the virtual host it is meant for.	Specify	ip and port to
       point to	your app server, and give a regex to match the URI.  Note: the
       regex  needs  to	 match	the  full  file	name, so use the extension for
       matching.  If no	flags are given, HTTP proxying	is  used.   Otherwise,
       flags  specifies	 the  proxying	mode: Use S for	SCGI and F for FastCGI
       mode.  See README.php for an example.

       It is also possible to specify a	Unix Domain socket, using  the	syntax
       --O  [flag/]|filename|regex.   Remember	to  put	the argument in	quotes
       when typing it in the shell.

SIGNALS
       Sending gatling SIGHUP will make	it close all the  server  sockets  (so
       you  can	start a	new gatling process with different options on the same
       ports).	The old	gatling	process	will continue serving the  established
       connections until they are all finished.

AUTHOR
       Initially written by Felix von Leitner <felix-gatling@fefe.de>.

LICENSE
       GPLv2  (see  http://www.gnu.org/copyleft/gpl.html) with an exception to
       allow linking against openssl.

								    gatling(8)

NAME | SYNOPSIS | DESCRIPTION | SIGNALS | AUTHOR | LICENSE

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