OpenSSH 5.6 has just been released. It will be available from the
mirrors listed at http://www.openssh.com/ shortly.
OpenSSH is a 100% complete SSH protocol version 1.3, 1.5 and 2.0
implementation and includes sftp client and server support.
Once again, we would like to thank the OpenSSH community for their
continued support of the project, especially those who contributed
code or patches, reported bugs, tested snapshots or donated to the
project. More information on donations may be found at:
http://www.openssh.com/donations.html
Changes since OpenSSH 5.5
=========================
Features:
* Added a ControlPersist option to ssh_config(5) that automatically
starts a background ssh(1) multiplex master when connecting. This
connection can stay alive indefinitely, or can be set to
automatically close after a user-specified duration of inactivity.
* Hostbased authentication may now use certificate host keys. CA keys
must be specified in a known_hosts file using the @cert-authority
marker as described in sshd(8).
* ssh-keygen(1) now supports signing certificate using a CA key that
has been stored in a PKCS#11 token.
* ssh(1) will now log the hostname and address that we connected to at
LogLevel=verbose after authentication is successful to mitigate
"phishing" attacks by servers with trusted keys that accept
authentication silently and automatically before presenting fake
password/passphrase prompts.
Note that, for such an attack to be successful, the user must have
disabled StrictHostKeyChecking (enabled by default) or an attacker
must have access to a trusted host key for the destination server.
* Expand %h to the hostname in ssh_config Hostname options. While this
sounds useless, it is actually handy for working with unqualified
hostnames:
Host *.*
Hostname %h
Host *
Hostname %h.example.org
* Allow ssh-keygen(1) to import (-i) and export (-e) of PEM and PKCS#8
keys in addition to RFC4716 (SSH.COM) encodings via a new -m option
(bz#1749)
* sshd(8) will now queue debug messages for bad ownership or
permissions on the user's keyfiles encountered during authentication
and will send them after authentication has successfully completed.
These messages may be viewed in ssh(1) at LogLevel=debug or higher.
* ssh(1) connection multiplexing now supports remote forwarding with
dynamic port allocation and can report the allocated port back to
the user:
LPORT=`ssh -S muxsocket -R0:localhost:25 -O forward somehost`
* sshd(8) now supports indirection in matching of principal names
listed in certificates. By default, if a certificate has an
embedded principals list then the username on the server must match
one of the names in the list for it to be accepted for
authentication.
sshd(8) now has a new AuthorizedPrincipalsFile option to specify a
file containing a list of names that may be accepted in place of the
username when authorizing a certificate trusted via the
sshd_config(5) TrustedCAKeys option. Similarly, authentication
using a CA trusted in ~/.ssh/authorized_keys now accepts a
principals="name1[,name2,...]" to specify a list of permitted names.
If either option is absent, the current behaviour of requiring the
username to appear in principals continues to apply. These options
are useful for role accounts, disjoint account namespaces and
"user@realm"-style naming policies in certificates.
* Additional sshd_config(5) options are now valid inside Match blocks:
AuthorizedKeysFile
AuthorizedPrincipalsFile
HostbasedUsesNameFromPacketOnly
PermitTunnel
* Revised the format of certificate keys. The new format, identified as
ssh-{dss,rsa}-[email protected] includes the following changes:
- Adding a serial number field. This may be specified by the CA at
the time of certificate signing.
- Moving the nonce field to the beginning of the certificate where
it can better protect against chosen-prefix attacks on the
signature hash (currently infeasible against the SHA1 hash used)
- Renaming the "constraints" field to "critical options"
- Addng a new non-critical "extensions" field. The "permit-*"
options are now extensions, rather than critical options to
permit non-OpenSSH implementation of this key format to degrade
gracefully when encountering keys with options they do not
recognize.
The older format is still supported for authentication and may still
be used when signing certificates (use "ssh-keygen -t v00 ...").
The v00 format, introduced in OpenSSH 5.4, will be supported for at
least one year from this release, after which it will be deprecated
and removed.
BugFixes:
* The PKCS#11 code now retries a lookup for a private key if there is
no matching key with CKA_SIGN attribute enabled; this fixes fixes
MuscleCard support (bz#1736)
* Unbreak strdelim() skipping past quoted strings (bz#1757). For
example, the following directive was not parsed correctly:
AllowUsers "blah blah" blah
* sftp(1): fix swapped args in upload_dir_internal(), breaking
recursive upload depth checks and causing verbose printing of
transfers to always be turned on (bz#1797)
* Fix a longstanding problem where if you suspend scp(1) at the
password/passphrase prompt the terminal mode is not restored.
* Fix a PKCS#11 crash on some smartcards by validating the length
returned for C_GetAttributValue (bz#1773)
* sftp(1): fix ls in working directories that contain globbing
characters in their pathnames (bz#1655)
* Print warning for missing home directory when ChrootDirectory=none
(bz#1564)
* sftp(1): fix a memory leak in do_realpath() error path (bz#1771)
* ssk-keygen(1): Standardise error messages when attempting to open
private key files to include "progname: filename: error reason"
(bz#1783)
* Replace verbose and overflow-prone Linebuf code with
read_keyfile_line() (bz#1565)
* Include the user name on "subsystem request for ..." log messages
* ssh(1) and sshd(8): remove hardcoded limit of 100 permitopen clauses
and port forwards per direction (bz#1327)
* sshd(8): ignore stderr output from subsystems to avoid hangs if a
subsystem or shell initialisation writes to stderr (bz#1750)
* Skip the initial check for access with an empty password when
PermitEmptyPasswords=no (bz#1638)
* sshd(8): fix logspam when key options (from="..." especially) deny
non-matching keys (bz#1765)
* ssh-keygen(1): display a more helpful error message when $HOME is
inaccessible while trying to create .ssh directory (bz#1740)
* ssh(1): fix hang when terminating a mux slave using ~. (bz#1758)
* ssh-keygen(1): refuse to generate keys longer than
OPENSSL_[RD]SA_MAX_MODULUS_BITS, since we would refuse to use
them anyway (bz#1516)
* Suppress spurious tty warning when using -O and stdin is not a tty
(bz#1746)
* Kill channel when pty allocation requests fail. Fixed stuck client
if the server refuses pty allocation (bz#1698)
Portable OpenSSH Bugfixes:
* sshd(8): increase the maximum username length for login recording
to 512 characters (bz#1579)
* Initialize the values to be returned from PAM to sane values in
case the PAM method doesn't write to them. (bz#1795)
* Let configure find OpenSSL libraries in a lib64 subdirectory.
(bz#1756)
Checksums:
==========
- SHA1 (openssh-5.6.tar.gz) = fa5ac394b874d6709031306b6ac5c48399697f7f
- SHA1 (openssh-5.6p1.tar.gz) = 347dd39c91c3529f41dae63714d452fb95efea1e
Reporting Bugs:
===============
- Please read http://www.openssh.com/report.html
Security bugs should be reported directly to [email protected]
OpenSSH is brought to you by Markus Friedl, Niels Provos, Theo de Raadt,
Kevin Steves, Damien Miller, Darren Tucker, Jason McIntyre, Tim Rice and
Ben Lindstrom.
OpenSSH 5.6发布了（082310）
OpenSSH 5.6发布了（082310）
未完待续、请勿转载、欢迎纠错、多谢！;)
[email]WHOAMi＠点点儿[/email]
[email]WHOAMi＠点点儿[/email]
我的OpenBSD机器上还是5.5，准备升级：
升级步骤：
1. 获取最新的OpenSSH:
2. 解压缩、编译、安装、拷贝配置文件：
然后查看您的OpenSSH版本：
重新启动sshd——用如下命令可以不重新启动电脑：
done, 已经是OpenSSH 5.6了。:p
列一下最新的发布历史：
代码: 全选
# ssh -v
OpenSSH_5.5, OpenSSL 0.9.8k 25 Mar 2009
usage: ssh [-1246AaCfgKkMNnqsTtVvXxYy] [-b bind_address] [-c cipher_spec]
[-D [bind_address:]port] [-e escape_char] [-F configfile]
[-I pkcs11] [-i identity_file]
[-L [bind_address:]port:host:hostport]
[-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port]
[-R [bind_address:]port:host:hostport] [-S ctl_path]
[-W host:port] [-w local_tun[:remote_tun]]
[user@]hostname [command]
1. 获取最新的OpenSSH:
代码: 全选
# cd /home
# ftp ftp://ftp.openbsd.org/pub/OpenBSD/OpenSSH/openssh-5.6.tar.gz
Connected to openbsd.sunsite.ualberta.ca.
220 openbsd.srv.ualberta.ca FTP server ready.
331 Guest login ok, send your email address as password.
230- Welcome to ftp.openbsd.org at the University of Alberta
230- in Edmonton, Alberta, Canada.
230- For other mirror sites visit http://www.openbsd.org/ftp.html
230-
230- _____ ____ _____ _____
230- / ___ \ | _ \ / ____| __ \
230- / / / /___ ___ ____ | |_) | (___ | | | |
230- / / / / __ \/ _ \/ __ \| _ < \___ \| | | |
230- / /__/ / /_/ / __/ / / /| |_) |____) | |__| |
230- \_____/ .___/\___/_/ /_/ |____/|_____/|_____/
230- /_/
230- | . The proactively secure Unix-like
230- . |L /| . Operating System.
230- _ . |\ _| \--+._/| . Please visit the OpenBSD web site
230- / ||\| Y J ) / |/| ./ at http://www.openbsd.org/
230- J |)'( | ` F`.'/
230- -<| F __ .-< All transfers are logged, if you don't
230- | / .-'. `. /-. L___ like this policy, disconnect now!
230- J \ < \ | | O\|.-'
230- _J \ .- \/ O | | \ |F
230- '-F -<_. \ .-' `-' L__ OpenBSD is available for order!
230- __J _ _. >-' )._. |-' You can order OpenBSD CD's from
230- `-|.' /_. \_| F http://www.openbsd.org/orders.html.
230- /.- . _.< CD sales are very important to support
230- /' /.' .' `\ the continued development of the project.
230- /L /' |/ _.-'-\
230- /'J ___.---'\|
230- |\ .--' V | `. `
230- |/`. `-. `._)
230- / .-.\
230- VK \ ( `\
230- `.\
230-
230- *DO NOT* mirror openbsd from this site! use one of the
230- "second level mirrors" listed at http://www.openbsd.org/ftp.html
230- instead of this site. If you mirror from this site you will lose
230- access to it.
230-
230- E-mail comments, questions, trouble reports, and complaints
230- to [email protected]. Please drive safely.
230-
230 Guest login ok, access restrictions apply.
Remote system type is UNIX.
Using binary mode to transfer files.
200 Type set to I.
250 CWD command successful.
Retrieving pub/OpenBSD/OpenSSH/openssh-5.6.tar.gz
local: openssh-5.6.tar.gz remote: openssh-5.6.tar.gz
150 Opening BINARY mode data connection for 'openssh-5.6.tar.gz' (554266 bytes).
100% |***********************************************************| 541 KB 00:03
226 Transfer complete.
554266 bytes received in 3.13 seconds (173.11 KB/s)
221 Goodbye.
#
代码: 全选
# cd /usr/src/usr.bin
# tar xvfz /home/openssh-5.6.tar.gz
# cd ssh
# make obj
# make cleandir
# make depend
# make
# make install
# cp ssh_config sshd_config /etc/ssh
代码: 全选
# ssh -v
OpenSSH_5.6, OpenSSL 0.9.8k 25 Mar 2009
usage: ssh [-1246AaCfgKkMNnqsTtVvXxYy] [-b bind_address] [-c cipher_spec]
[-D [bind_address:]port] [-e escape_char] [-F configfile]
[-I pkcs11] [-i identity_file]
[-L [bind_address:]port:host:hostport]
[-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port]
[-R [bind_address:]port:host:hostport] [-S ctl_path]
[-W host:port] [-w local_tun[:remote_tun]]
[user@]hostname [command]
代码: 全选
kill -HUP `cat /var/run/sshd.pid`列一下最新的发布历史：
OpenSSH 5.6: August 23, 2010
OpenSSH 5.5: April 16, 2010
OpenSSH 5.4: March 8, 2010
OpenSSH 5.3: October 1, 2009
OpenSSH 5.2: February 23, 2009
OpenSSH 5.1: July 21, 2008
OpenSSH 5.0: April 3, 2008
OpenSSH 4.9: March 30, 2008
OpenSSH 4.7: September 4, 2007
OpenSSH 4.6: March 9, 2007
OpenSSH 4.5: November 7, 2006
OpenSSH 4.4: September 27, 2006
OpenSSH 4.3: February 1, 2006
OpenSSH 4.2: September 1, 2005
OpenSSH 4.1: May 26, 2005
OpenSSH 4.0: March 9, 2005
OpenSSH 3.9: August 17, 2004
OpenSSH 3.8: February 24, 2004
OpenSSH 3.7.1: September 16, 2003
OpenSSH 3.7: September 16, 2003
OpenSSH 3.6.1: April 1, 2003
OpenSSH 3.6: March 31, 2003
OpenSSH 3.5: October 14, 2002
OpenSSH 3.4: June 26, 2002
OpenSSH 3.3: June 21, 2002
OpenSSH 3.2.3: May 22, 2002
OpenSSH 3.2.2: May 17, 2002
OpenSSH 3.1: March 7, 2002
OpenSSH 3.0.2: December 3, 2001
OpenSSH 3.0.1: November 15, 2001
OpenSSH 3.0: November 6, 2001
OpenSSH 2.9.9: September 25, 2001
OpenSSH 2.9: May 1, 2001
OpenSSH 2.5.2: Mar 19, 2001
OpenSSH 2.5.1: Feb 19, 2001
OpenSSH 2.5.0: Feb 16, 2001
OpenSSH 2.3.0: Nov 6, 2000
OpenSSH 2.2.0: Aug 31, 2000
OpenSSH 2.1.1: June 8, 2000
OpenSSH 2.1.0: May 8, 2000
OpenSSH 1.2.3: released March 6, 2000
未完待续、请勿转载、欢迎纠错、多谢！;)
[email]WHOAMi＠点点儿[/email]
[email]WHOAMi＠点点儿[/email]
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