INSTALL - third_party/openssh-portable - Git at Google

 1. Prerequisites
 ----------------

 You will need working installations of Zlib and OpenSSL.

 Zlib:
 http://www.cdrom.com/pub/infozip/zlib/

 OpenSSL:
 http://www.openssl.org/

 OpenSSH can utilise Pluggable Authentication Modules (PAM) if your system
 supports it. PAM is standard on Redhat and Debian Linux and on Solaris.

 PAM:
 http://www.kernel.org/pub/linux/libs/pam/

 If you wish to build the GNOME passphrase requestor, you will need the GNOME
 libraries and headers.

 GNOME:
 http://www.gnome.org/

 If you are planning to use OpenSSH on a Unix which lacks a Kernel random
 number generator (/dev/urandom), you will need to install the Entropy
 Gathering Daemon (or similar). You will also need to specify the
 --with-egd-pool option to ./configure.

 EGD:
 http://www.lothar.com/tech/crypto/

 GNU Make:
 ftp://ftp.gnu.org/gnu/make/

 OpenSSH has only been tested with GNU make. It may work with other
 'make' programs, but you are on your own.

 2. Building / Installation
 --------------------------

 To install OpenSSH with default options:

 ./configure
 make
 make install

 This will install the OpenSSH binaries in /usr/local/bin, configuration files
 in /usr/local/etc, the server in /usr/local/sbin, etc. To specify a different
 installation prefix, use the --prefix option to configure:

 ./configure --prefix=/opt
 make
 make install

 Will install OpenSSH in /opt/{bin,etc,lib,sbin}. You can also override
 specific paths, for example:

 ./configure --prefix=/opt --sysconfdir=/etc/ssh
 make
 make install

 This will install the binaries in /opt/{bin,lib,sbin}, but will place the
 configuration files in /etc/ssh.

 If you are using PAM, you will need to manually install a PAM control
 file as "/etc/pam.d/sshd" (or wherever your system prefers to keep
 them). A generic PAM configuration is included as "sshd.pam.generic",
 you may need to edit it before using it on your system.

 There are a few other options to the configure script:

 --enable-gnome-askpass will build the GNOME passphrase dialog. You
 need a working installation of GNOME, including the development
 headers, for this to work.

 --with-random=/some/file allows you to specify an alternate source of
 random numbers (the default is /dev/urandom). Unless you are absolutly
 sure of what you are doing, it is best to leave this alone.

 --with-egd-pool=/some/file allows you to enable Entropy Gathering
 Daemon support and to specify a EGD pool socket. You will need to
 use this if your Unix does not support the /dev/urandom device (or
 similar). The file argument refers to the EGD pool file, not the
 EGD program itself. Please refer to the EGD documentation.

 --with-kerberos4 will enable Kerberos IV support. You will need to
 have the Kerberos libraries and header files installed for this to
 work.

 --with-afs will enable AFS support. You will need to have the Kerberos
 IV and the AFS libraries and header files installed for this to work.

 --with-skey will enable S/Key one time password support. You will need
 the S/Key libraries and header files installed for this to work.

 --with-tcp-wrappers will enable TCP Wrappers (/etc/hosts.allow|deny)
 support. You will need libwrap.a and tcpd.h installed.

 --with-md5-passwords will enable the use of MD5 passwords. Enable this
 if your operating system uses MD5 passwords without using PAM.


 3. Configuration
 ----------------

 The runtime configuration files are installed by in ${prefix}/etc or
 whatever you specified as your --sysconfdir (/usr/local/etc by default).

 The default configuration should be instantly usable, though you should
 review it to ensure that it matches your security requirements.

 To generate a host key, issue the following command: (replacing
 /etc/ssh/ssh_host_key with an appropriate path)

 /usr/bin/ssh-keygen -b 1024 -f /etc/ssh/ssh_host_key -N ''

 Replacing /etc/ssh with the correct path to the configuration directory.
 (${prefix}/etc or whatever you specified with --sysconfdir during
 configuration)

 If you have configured OpenSSH with EGD support, ensure that EGD is
 running and has collected some Entropy.

 For more information on configuration, please refer to the manual pages
 for sshd, ssh and ssh-agent.

 4. Problems?
 ------------

 If you experience problems compiling, installing or running OpenSSH.
 Please refer to the "reporting bugs" section of the webpage at
 http://violet.ibs.com.au/openssh/
	1. Prerequisites
	----------------

	You will need working installations of Zlib and OpenSSL.

	Zlib:
	http://www.cdrom.com/pub/infozip/zlib/

	OpenSSL:
	http://www.openssl.org/

	OpenSSH can utilise Pluggable Authentication Modules (PAM) if your system
	supports it. PAM is standard on Redhat and Debian Linux and on Solaris.

	PAM:
	http://www.kernel.org/pub/linux/libs/pam/

	If you wish to build the GNOME passphrase requestor, you will need the GNOME
	libraries and headers.

	GNOME:
	http://www.gnome.org/

	If you are planning to use OpenSSH on a Unix which lacks a Kernel random
	number generator (/dev/urandom), you will need to install the Entropy
	Gathering Daemon (or similar). You will also need to specify the
	--with-egd-pool option to ./configure.

	EGD:
	http://www.lothar.com/tech/crypto/

	GNU Make:
	ftp://ftp.gnu.org/gnu/make/

	OpenSSH has only been tested with GNU make. It may work with other
	'make' programs, but you are on your own.

	2. Building / Installation
	--------------------------

	To install OpenSSH with default options:

	./configure
	make
	make install

	This will install the OpenSSH binaries in /usr/local/bin, configuration files
	in /usr/local/etc, the server in /usr/local/sbin, etc. To specify a different
	installation prefix, use the --prefix option to configure:

	./configure --prefix=/opt
	make
	make install

	Will install OpenSSH in /opt/{bin,etc,lib,sbin}. You can also override
	specific paths, for example:

	./configure --prefix=/opt --sysconfdir=/etc/ssh
	make
	make install

	This will install the binaries in /opt/{bin,lib,sbin}, but will place the
	configuration files in /etc/ssh.

	If you are using PAM, you will need to manually install a PAM control
	file as "/etc/pam.d/sshd" (or wherever your system prefers to keep
	them). A generic PAM configuration is included as "sshd.pam.generic",
	you may need to edit it before using it on your system.

	There are a few other options to the configure script:

	--enable-gnome-askpass will build the GNOME passphrase dialog. You
	need a working installation of GNOME, including the development
	headers, for this to work.

	--with-random=/some/file allows you to specify an alternate source of
	random numbers (the default is /dev/urandom). Unless you are absolutly
	sure of what you are doing, it is best to leave this alone.

	--with-egd-pool=/some/file allows you to enable Entropy Gathering
	Daemon support and to specify a EGD pool socket. You will need to
	use this if your Unix does not support the /dev/urandom device (or
	similar). The file argument refers to the EGD pool file, not the
	EGD program itself. Please refer to the EGD documentation.

	--with-kerberos4 will enable Kerberos IV support. You will need to
	have the Kerberos libraries and header files installed for this to
	work.

	--with-afs will enable AFS support. You will need to have the Kerberos
	IV and the AFS libraries and header files installed for this to work.

	--with-skey will enable S/Key one time password support. You will need
	the S/Key libraries and header files installed for this to work.

	--with-tcp-wrappers will enable TCP Wrappers (/etc/hosts.allow\|deny)
	support. You will need libwrap.a and tcpd.h installed.

	--with-md5-passwords will enable the use of MD5 passwords. Enable this
	if your operating system uses MD5 passwords without using PAM.


	3. Configuration
	----------------

	The runtime configuration files are installed by in ${prefix}/etc or
	whatever you specified as your --sysconfdir (/usr/local/etc by default).

	The default configuration should be instantly usable, though you should
	review it to ensure that it matches your security requirements.

	To generate a host key, issue the following command: (replacing
	/etc/ssh/ssh_host_key with an appropriate path)

	/usr/bin/ssh-keygen -b 1024 -f /etc/ssh/ssh_host_key -N ''

	Replacing /etc/ssh with the correct path to the configuration directory.
	(${prefix}/etc or whatever you specified with --sysconfdir during
	configuration)

	If you have configured OpenSSH with EGD support, ensure that EGD is
	running and has collected some Entropy.

	For more information on configuration, please refer to the manual pages
	for sshd, ssh and ssh-agent.

	4. Problems?
	------------

	If you experience problems compiling, installing or running OpenSSH.
	Please refer to the "reporting bugs" section of the webpage at
	http://violet.ibs.com.au/openssh/