FREEBSD-upgrade revision 181091 
1
2
3	    FreeBSD maintainer's guide to OpenSSH-portable
4	    ==============================================
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70) Make sure your mail spool has plenty of free space.  It'll fill up
8   pretty fast once you're done with this checklist.
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101) Grab the latest OpenSSH-portable tarball from the OpenBSD FTP
11   site (ftp://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/)
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132) Unpack the tarball in a suitable directory.
14
15	$ tar xf openssh-X.YpZ.tar.gz \
16		-X /usr/src/crypto/openssh/FREEBSD-Xlist
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183) Remove trash:
19
20   Make sure -X took care of everything, and if it didn't, make sure
21   to update FREEBSD-Xlist so you won't miss it the next time.  A good
22   way to do this is to run a test import and see if any new files
23   show up:
24
25	$ cvs -n import src/crypto/openssh OPENSSH x | grep \^N
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274) Import the sources:
28
29	$ cvs import src/crypto/openssh OPENSSH OpenSSH_X_YpZ
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315) Resolve conflicts.  Remember to bump the version number and
32   addendum in version.h, and update the default value in
33   ssh{,d}_config and ssh{,d}_config.5.
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356) Generate configure and config.h.in:
36
37	$ autoconf
38	$ autoheader
39
40   Note: this requires a recent version of autoconf, not autoconf213.
41
427) Run configure with the appropriate arguments:
43
44	$ ./configure --prefix=/usr --sysconfdir=/etc/ssh \
45		--with-pam --with-tcp-wrappers --with-libedit \
46		--with-ssl-engine
47
48   This will regenerate config.h, which must be committed along with
49   the rest.
50
51   Note that we don't want to configure OpenSSH for Kerberos using
52   configure since we have to be able to turn it on or off depending
53   on the value of MK_KERBEROS.  Our Makefiles take care of this.
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558) If source files have been added or removed, update the appropriate
56   makefiles to reflect changes in the vendor's Makefile.in.
57
589) Build libssh.  Follow the instructions in ssh_namespace.h to get a
59   list of new symbols.  Update ssh_namespace.h, build everything,
60   install and test.
61
62A) Build and test the pam_ssh PAM module.  It gropes around libssh's
63   internals and will break if something significant changes or if
64   ssh_namespace.h is out of whack.
65
66B) Re-commit everything on repoman (you *did* use a test repo for
67   this, didn't you?)
68
69
70
71	  An overview of FreeBSD changes to OpenSSH-portable
72	  ==================================================
73
740) VersionAddendum
75
76   The SSH protocol allows for a human-readable version string of up
77   to 40 characters to be appended to the protocol version string.
78   FreeBSD takes advantage of this to include a date indicating the
79   "patch level", so people can easily determine whether their system
80   is vulnerable when an OpenSSH advisory goes out.  Some people,
81   however, dislike advertising their patch level in the protocol
82   handshake, so we've added a VersionAddendum configuration variable
83   to allow them to change or disable it.
84
851) Modified server-side defaults
86
87   We've modified some configuration defaults in sshd:
88
89      - PasswordAuthentication defaults to "no" when PAM is enabled.
90
91      - For protocol version 2, we don't load RSA host keys by
92        default.  If both RSA and DSA keys are present, we prefer DSA
93        to RSA.
94
95      - LoginGraceTime defaults to 120 seconds instead of 600.
96
97      - PermitRootLogin defaults to "no".
98
99      - X11Forwarding defaults to "yes" (it's a threat to the client,
100        not to the server.)
101
1022) Modified client-side defaults
103
104   We've modified some configuration defaults in ssh:
105
106      - For protocol version 2, if both RSA and DSA keys are present,
107        we prefer DSA to RSA.
108
109      - CheckHostIP defaults to "no".
110
1113) Canonic host names
112
113   We've added code to ssh.c to canonicize the target host name after
114   reading options but before trying to connect.  This eliminates the
115   usual problem with duplicate known_hosts entries.
116
1174) setusercontext() environment
118
119   Our setusercontext(3) can set environment variables, which we must
120   take care to transfer to the child's environment.
121
122
123
124This port was brought to you by (in no particular order) DARPA, NAI
125Labs, ThinkSec, Nescaf�, the Aberlour Glenlivet Distillery Co.,
126Suzanne Vega, and a Sanford's #69 Deluxe Marker.
127
128					-- des@FreeBSD.org
129
130$FreeBSD: head/crypto/openssh/FREEBSD-upgrade 181091 2008-08-01 00:28:50Z des $
131