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changes not previously backported to 4.3p2:
- 4.4/4.4p1 (http://www.openssh.org/txt/release-4.4):
+ On portable OpenSSH, fix a GSSAPI authentication abort that could be
used to determine the validity of usernames on some platforms.
+ Implemented conditional configuration in sshd_config(5) using the
"Match" directive. This allows some configuration options to be
selectively overridden if specific criteria (based on user, group,
hostname and/or address) are met. So far a useful subset of
post-authentication options are supported and more are expected to
be added in future releases.
+ Add support for Diffie-Hellman group exchange key agreement with a
final hash of SHA256.
+ Added a "ForceCommand" directive to sshd_config(5). Similar to the
command="..." option accepted in ~/.ssh/authorized_keys, this forces
the execution of the specified command regardless of what the user
requested. This is very useful in conjunction with the new "Match"
option.
+ Add a "PermitOpen" directive to sshd_config(5). This mirrors the
permitopen="..." authorized_keys option, allowing fine-grained
control over the port-forwardings that a user is allowed to
establish.
+ Add optional logging of transactions to sftp-server(8).
+ ssh(1) will now record port numbers for hosts stored in
~/.ssh/known_hosts when a non-standard port has been requested
(closes: #50612).
+ Add an "ExitOnForwardFailure" option to cause ssh(1) to exit (with a
non-zero exit code) when requested port forwardings could not be
established.
+ Extend sshd_config(5) "SubSystem" declarations to allow the
specification of command-line arguments.
+ Replacement of all integer overflow susceptible invocations of
malloc(3) and realloc(3) with overflow-checking equivalents.
+ Many manpage fixes and improvements.
+ Add optional support for OpenSSL hardware accelerators (engines),
enabled using the --with-ssl-engine configure option.
+ Tokens in configuration files may be double-quoted in order to
contain spaces (closes: #319639).
+ Move a debug() call out of a SIGCHLD handler, fixing a hang when the
session exits very quickly (closes: #307890).
+ Fix some incorrect buffer allocation calculations (closes: #410599).
+ ssh-add doesn't ask for a passphrase if key file permissions are too
liberal (closes: #103677).
+ Likewise, ssh doesn't ask either (closes: #99675).
- 4.6/4.6p1 (http://www.openssh.org/txt/release-4.6):
+ sshd now allows the enabling and disabling of authentication methods
on a per user, group, host and network basis via the Match directive
in sshd_config.
+ Fixed an inconsistent check for a terminal when displaying scp
progress meter (closes: #257524).
+ Fix "hang on exit" when background processes are running at the time
of exit on a ttyful/login session (closes: #88337).
* Update to current GSSAPI patch from
http://www.sxw.org.uk/computing/patches/openssh-4.6p1-gsskex-20070312.patch;
install ChangeLog.gssapi.
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[sshd.8]
Add more detail about what permissions are and aren't accepted for
authorized_keys files. Corrections jmc@, ok djm@, "looks good" jmc@
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[servconf.c servconf.h session.c sshd.8 sshd_config sshd_config.5]
Add ForceCommand keyword to sshd_config, equivalent to the "command="
key option, man page entry and example in sshd_config.
Feedback & ok djm@, man page corrections & ok jmc@
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[sshd.8]
s/and and/and/
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[misc.c misc.h sshd.8 sshconnect.c]
Add port identifier to known_hosts for non-default ports, based originally
on a patch from Devin Nate in bz#910.
For any connection using the default port or using a HostKeyAlias the
format is unchanged, otherwise the host name or address is enclosed
within square brackets in the same format as sshd's ListenAddress.
Tested by many, ok markus@.
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[ssh.1 ssh_config.5 sshd.8 sshd_config.5]
more consistency fixes;
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[sshd.8]
signpost to PATTERNS section;
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[sshd.8]
grammar;
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[sshd.8]
sync the (s)hosts.equiv FILES entries w/ those from ssh.1;
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[sshd.8]
move the sshrc stuff out of FILES, and into its own section:
FILES is not a good place to document how stuff works;
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[sshd.8]
sync some of the FILES entries w/ ssh.1;
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[sshd.8]
remove ietf draft references; RFC list now maintained in ssh.1;
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[sshd.8]
sort FILES and use a -compact list;
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[sshd.8]
- avoid nasty line split
- `*' does not need to be escaped
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[sshd.8]
turn this into an example ssh_known_hosts file; ok djm
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[sshd.8]
small tweaks for the ssh_known_hosts section;
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[sshd.8]
no need to subsection the authorized_keys examples - instead, convert
this to look like an actual file. also use proto 2 keys, and use IETF
example addresses;
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[sshd.8]
sort the list of options permissable w/ authorized_keys;
ok djm dtucker
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[sshd.8]
rework the description of authorized_keys a little;
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[sshd.8]
- move some text into a CAVEATS section
- merge the COMMAND EXECUTION... section into AUTHENTICATION
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[sshd.8]
small tweak;
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- jmc@cvs.openbsd.org 2006/02/01 09:06:50
[sshd.8]
- merge sections on protocols 1 and 2 into a single section
- remove configuration file section
ok markus
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[sshd.8]
move subsections to full sections;
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[sshd.8]
move the options description up the page, and a few additional tweaks
whilst in here;
ok markus
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[sshd.8]
refer to TCP forwarding, rather than TCP/IP forwarding;
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[sshd.8]
clarify precedence of -p, Port, ListenAddress; ok and help jmc@
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[auth-options.c auth-options.h channels.c channels.h clientloop.c]
[misc.c misc.h readconf.c readconf.h scp.c servconf.c servconf.h]
[serverloop.c sftp.c ssh.1 ssh.c ssh_config ssh_config.5 sshconnect.c]
[sshconnect.h sshd.8 sshd_config sshd_config.5]
Add support for tun(4) forwarding over OpenSSH, based on an idea and
initial channel code bits by markus@. This is a simple and easy way to
use OpenSSH for ad hoc virtual private network connections, e.g.
administrative tunnels or secure wireless access. It's based on a new
ssh channel and works similar to the existing TCP forwarding support,
except that it depends on the tun(4) network interface on both ends of
the connection for layer 2 or layer 3 tunneling. This diff also adds
support for LocalCommand in the ssh(1) client.
ok djm@, markus@, jmc@ (manpages), tested and discussed with others
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for UnixWare.
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"*LOCKED*" string) for FreeBSD. Patch jeremie at le-hen.org and
senthilkumar_sen at hotpop.com.
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[ssh-keygen.1 ssh-keygen.c sshd.8]
increase default rsa/dsa key length from 1024 to 2048 bits;
ok markus@ deraadt@
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[ssh-add.1 ssh-agent.1 ssh-keygen.1 ssh.1 ssh_config.5 sshd.8]
[sshd_config.5] OpenSSH doesn't ever look at the $HOME environment
variable, so don't say that we do (bz #623); ok deraadt@
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[sshd.8]
new sentence, new line;
whitespace;
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[hostfile.c hostfile.h readconf.c readconf.h ssh.1 ssh_config.5]
[sshconnect.c sshd.8]
add support for hashing host names and addresses added to known_hosts
files, to improve privacy of which hosts user have been visiting; ok
markus@ deraadt@
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[sshd.8]
add /etc/motd and $HOME/.hushlogin to FILES;
from michael knudsen;
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[auth-rsa.c auth2-pubkey.c authfile.c misc.c misc.h ssh.h sshd.8]
Discard over-length authorized_keys entries rather than complaining when
they don't decode. bz #884, with & ok djm@
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[ssh.1 sshd.8]
get rid of references to rhosts authentication; with jmc@
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[sshd.8]
Man page grammar fix (bz #858), from damerell at chiark.greenend.org.uk
via Debian; ok djm@
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extensively yet.
ProtocolKeepAlives is now just a compatibility alias for
ServerAliveInterval.
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[scp.1 scp.c sftp-server.8 sftp.1 sftp.c ssh.1 sshd.8]
scp and sftp: add options list and sort options. options list requested
by deraadt@
sshd: use same format as ssh
ssh: remove wrong option from list
sftp-server: Subsystem is documented in ssh_config(5), not sshd(8)
ok deraadt@ markus@
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work.
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any access to locked accounts. ok djm@
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