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2015-08-19Various Debian-specific configuration changesColin Watson
ssh: Enable ForwardX11Trusted, returning to earlier semantics which cause fewer problems with existing setups (http://bugs.debian.org/237021). ssh: Set 'SendEnv LANG LC_*' by default (http://bugs.debian.org/264024). ssh: Enable HashKnownHosts by default to try to limit the spread of ssh worms. ssh: Enable GSSAPIAuthentication and disable GSSAPIDelegateCredentials by default. sshd: Refer to /usr/share/doc/openssh-server/README.Debian.gz alongside PermitRootLogin default. Document all of this, along with several sshd defaults set in debian/openssh-server.postinst. Author: Russ Allbery <rra@debian.org> Forwarded: not-needed Last-Update: 2015-08-19 Patch-Name: debian-config.patch
2015-08-19Adjust various OpenBSD-specific references in manual pagesColin Watson
No single bug reference for this patch, but history includes: http://bugs.debian.org/154434 (login.conf(5)) http://bugs.debian.org/513417 (/etc/rc) http://bugs.debian.org/530692 (ssl(8)) https://bugs.launchpad.net/bugs/456660 (ssl(8)) Forwarded: not-needed Last-Update: 2014-10-07 Patch-Name: openbsd-docs.patch
2015-08-19Add DebianBanner server configuration optionKees Cook
Setting this to "no" causes sshd to omit the Debian revision from its initial protocol handshake, for those scared by package-versioning.patch. Bug-Debian: http://bugs.debian.org/562048 Forwarded: not-needed Last-Update: 2015-08-19 Patch-Name: debian-banner.patch
2015-08-19Various keepalive extensionsRichard Kettlewell
Add compatibility aliases for ProtocolKeepAlives and SetupTimeOut, supported in previous versions of Debian's OpenSSH package but since superseded by ServerAliveInterval. (We're probably stuck with this bit for compatibility.) In batch mode, default ServerAliveInterval to five minutes. Adjust documentation to match and to give some more advice on use of keepalives. Author: Ian Jackson <ian@chiark.greenend.org.uk> Author: Matthew Vernon <matthew@debian.org> Author: Colin Watson <cjwatson@debian.org> Last-Update: 2015-08-19 Patch-Name: keepalive-extensions.patch
2015-08-19GSSAPI key exchange supportSimon Wilkinson
This patch has been rejected upstream: "None of the OpenSSH developers are in favour of adding this, and this situation has not changed for several years. This is not a slight on Simon's patch, which is of fine quality, but just that a) we don't trust GSSAPI implementations that much and b) we don't like adding new KEX since they are pre-auth attack surface. This one is particularly scary, since it requires hooks out to typically root-owned system resources." However, quite a lot of people rely on this in Debian, and it's better to have it merged into the main openssh package rather than having separate -krb5 packages (as we used to have). It seems to have a generally good security history. Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=1242 Last-Updated: 2015-08-19 Patch-Name: gssapi.patch
2015-02-22upstream commitdjm@openbsd.org
sort options useable under Match case-insensitively; prodded jmc@
2015-02-21upstream commitdjm@openbsd.org
more options that are available under Match; bz#2353 reported by calestyo AT scientia.net
2015-02-03upstream commitderaadt@openbsd.org
increasing encounters with difficult DNS setups in darknets has convinced me UseDNS off by default is better ok djm
2015-01-26upstream commitjmc@openbsd.org
heirarchy -> hierarchy;
2015-01-26upstream commitderaadt@openbsd.org
Provide a warning about chroot misuses (which sadly, seem to have become quite popular because shiny). sshd cannot detect/manage/do anything about these cases, best we can do is warn in the right spot in the man page. ok markus
2015-01-13upstream commitdjm@openbsd.org
add sshd_config HostbasedAcceptedKeyTypes and PubkeyAcceptedKeyTypes options to allow sshd to control what public key types will be accepted. Currently defaults to all. Feedback & ok markus@
2014-12-22upstream commitdjm@openbsd.org
mention ssh -Q feature to list supported { MAC, cipher, KEX, key } algorithms in more places and include the query string used to list the relevant information; bz#2288
2014-12-22upstream commitjmc@openbsd.org
tweak previous;
2014-12-22upstream commitdjm@openbsd.org
correct description of what will happen when a AuthorizedKeysCommand is specified but AuthorizedKeysCommandUser is not (sshd will refuse to start)
2014-12-22upstream commitdjm@openbsd.org
remember which public keys have been used for authentication and refuse to accept previously-used keys. This allows AuthenticationMethods=publickey,publickey to require that users authenticate using two _different_ pubkeys. ok markus@
2014-12-22upstream commitjmc@openbsd.org
tweak previous;
2014-12-22upstream commitdjm@openbsd.org
Add FingerprintHash option to control algorithm used for key fingerprints. Default changes from MD5 to SHA256 and format from hex to base64. Feedback and ok naddy@ markus@
2014-12-18upstream commitdjm@openbsd.org
revert chunk I didn't mean to commit yet; via jmc@
2014-12-11upstream commitdjm@openbsd.org
mention AuthorizedKeysCommandUser must be set for AuthorizedKeysCommand to be run; bz#2287
2014-11-24upstream commitjmc@openbsd.org
restore word zapped in previous, and remove some useless "No" macros;
2014-11-24upstream commitderaadt@openbsd.org
/dev/random has created the same effect as /dev/arandom (and /dev/urandom) for quite some time. Mop up the last few, by using /dev/random where we actually want it, or not even mentioning arandom where it is irrelevant.
2014-10-13upstream commitdjm@openbsd.org
mention permissions on tun(4) devices in PermitTunnel documentation; bz#2273
2014-10-13upstream commitsobrado@openbsd.org
typo.
2014-10-03 - (djm) [sshd_config.5] typo; from Iain MorganDamien Miller
2014-07-30 - schwarze@cvs.openbsd.org 2014/07/28 15:40:08Damien Miller
[sftp-server.8 sshd_config.5] some systems no longer need /dev/log; issue noticed by jirib; ok deraadt
2014-07-18 - millert@cvs.openbsd.org 2014/07/15 15:54:14Damien Miller
[PROTOCOL auth-options.c auth-passwd.c auth-rh-rsa.c auth-rhosts.c] [auth-rsa.c auth.c auth1.c auth2-hostbased.c auth2-kbdint.c auth2-none.c] [auth2-passwd.c auth2-pubkey.c auth2.c canohost.c channels.c channels.h] [clientloop.c misc.c misc.h monitor.c mux.c packet.c readconf.c] [readconf.h servconf.c servconf.h serverloop.c session.c ssh-agent.c] [ssh.c ssh_config.5 sshconnect.c sshconnect1.c sshconnect2.c sshd.c] [sshd_config.5 sshlogin.c] Add support for Unix domain socket forwarding. A remote TCP port may be forwarded to a local Unix domain socket and vice versa or both ends may be a Unix domain socket. This is a reimplementation of the streamlocal patches by William Ahern from: http://www.25thandclement.com/~william/projects/streamlocal.html OK djm@ markus@
2014-07-04 - djm@cvs.openbsd.org 2014/07/03 22:40:43Damien Miller
[servconf.c servconf.h session.c sshd.8 sshd_config.5] Add a sshd_config PermitUserRC option to control whether ~/.ssh/rc is executed, mirroring the no-user-rc authorized_keys option; bz#2160; ok markus@
2014-04-20 - naddy@cvs.openbsd.org 2014/03/28 05:17:11Damien Miller
[ssh_config.5 sshd_config.5] sync available and default algorithms, improve algorithm list formatting help from jmc@ and schwarze@, ok deraadt@
2014-02-28 - djm@cvs.openbsd.org 2014/02/27 22:47:07Damien Miller
[sshd_config.5] bz#2184 clarify behaviour of a keyword that appears in multiple matching Match blocks; ok dtucker@
2014-02-04 - jmc@cvs.openbsd.org 2014/01/29 14:04:51Damien Miller
[sshd_config.5] document kbdinteractiveauthentication; requested From: Ross L Richardson dtucker/markus helped explain its workings;
2013-12-18 - dtucker@cvs.openbsd.org 2013/12/08 09:53:27Damien Miller
[sshd_config.5] Use a literal for the default value of KEXAlgorithms. ok deraadt jmc
2013-12-18 - naddy@cvs.openbsd.org 2013/12/07 11:58:46Damien Miller
[ssh-add.1 ssh-agent.1 ssh-keygen.1 ssh-keyscan.1 ssh-keysign.8 ssh.1] [ssh_config.5 sshd.8 sshd_config.5] add missing mentions of ed25519; ok djm@
2013-12-05 - jmc@cvs.openbsd.org 2013/11/21 08:05:09Damien Miller
[ssh_config.5 sshd_config.5] no need for .Pp before displays;
2013-11-21 - djm@cvs.openbsd.org 2013/11/21 00:45:44Damien Miller
[Makefile.in PROTOCOL PROTOCOL.chacha20poly1305 authfile.c chacha.c] [chacha.h cipher-chachapoly.c cipher-chachapoly.h cipher.c cipher.h] [dh.c myproposal.h packet.c poly1305.c poly1305.h servconf.c ssh.1] [ssh.c ssh_config.5 sshd_config.5] Add a new protocol 2 transport cipher "chacha20-poly1305@openssh.com" that combines Daniel Bernstein's ChaCha20 stream cipher and Poly1305 MAC to build an authenticated encryption mode. Inspired by and similar to Adam Langley's proposal for TLS: http://tools.ietf.org/html/draft-agl-tls-chacha20poly1305-03 but differs in layout used for the MAC calculation and the use of a second ChaCha20 instance to separately encrypt packet lengths. Details are in the PROTOCOL.chacha20poly1305 file. Feedback markus@, naddy@; manpage bits Loganden Velvindron @ AfriNIC ok markus@ naddy@
2013-11-04 - markus@cvs.openbsd.org 2013/11/02 22:39:19Damien Miller
[ssh_config.5 sshd_config.5] the default kex is now curve25519-sha256@libssh.org
2013-10-30 - jmc@cvs.openbsd.org 2013/10/29 18:49:32Damien Miller
[sshd_config.5] pty(4), not pty(7);
2013-10-30 - djm@cvs.openbsd.org 2013/10/29 09:48:02Damien Miller
[servconf.c servconf.h session.c sshd_config sshd_config.5] shd_config PermitTTY to disallow TTY allocation, mirroring the longstanding no-pty authorized_keys option; bz#2070, patch from Teran McKinney; ok markus@
2013-10-24 - dtucker@cvs.openbsd.org 2013/10/24 00:51:48Damien Miller
[readconf.c servconf.c ssh_config.5 sshd_config.5] Disallow empty Match statements and add "Match all" which matches everything. ok djm, man page help jmc@
2013-07-20 - markus@cvs.openbsd.org 2013/07/19 07:37:48Damien Miller
[auth.h kex.h kexdhs.c kexecdhs.c kexgexs.c monitor.c servconf.c] [servconf.h session.c sshd.c sshd_config.5] add ssh-agent(1) support to sshd(8); allows encrypted hostkeys, or hostkeys on smartcards; most of the work by Zev Weiss; bz #1974 ok djm@
2013-07-18 - jmc@cvs.openbsd.org 2013/06/27 14:05:37Damien Miller
[ssh-keygen.1 ssh.1 ssh_config.5 sshd.8 sshd_config.5] do not use Sx for sections outwith the man page - ingo informs me that stuff like html will render with broken links; issue reported by Eric S. Raymond, via djm
2013-05-16 - jmc@cvs.openbsd.org 2013/05/16 06:30:06Darren Tucker
[sshd_config.5] oops! avoid Xr to self;
2013-05-16 - dtucker@cvs.openbsd.org 2013/05/16 04:09:14Darren Tucker
[sshd_config.5 servconf.c servconf.h packet.c serverloop.c monitor.c sshd_config sshd.c] Add RekeyLimit to sshd with the same syntax as the client allowing rekeying based on traffic volume or time. ok djm@, help & ok jmc@ for the man page.
2013-04-23 - djm@cvs.openbsd.org 2013/04/19 01:00:10Damien Miller
[sshd_config.5] document the requirment that the AuthorizedKeysCommand be owned by root; ok dtucker@ markus@
2013-04-23 - markus@cvs.openbsd.org 2013/03/07 19:27:25Damien Miller
[auth.h auth2-chall.c auth2.c monitor.c sshd_config.5] add submethod support to AuthenticationMethods; ok and freedback djm@
2013-02-12 - dtucker@cvs.openbsd.org 2013/02/06 00:20:42Damien Miller
[servconf.c sshd_config sshd_config.5] Change default of MaxStartups to 10:30:100 to start doing random early drop at 10 connections up to 100 connections. This will make it harder to DoS as CPUs have come a long way since the original value was set back in 2000. Prompted by nion at debian org, ok markus@
2013-01-20 - jmc@cvs.openbsd.org 2013/01/18 08:00:49Damien Miller
[sshd_config.5] tweak previous;
2013-01-18 - djm@cvs.openbsd.org 2013/01/17 23:00:01Damien Miller
[auth.c key.c key.h ssh-keygen.1 ssh-keygen.c sshd_config.5] [krl.c krl.h PROTOCOL.krl] add support for Key Revocation Lists (KRLs). These are a compact way to represent lists of revoked keys and certificates, taking as little as a single bit of incremental cost to revoke a certificate by serial number. KRLs are loaded via the existing RevokedKeys sshd_config option. feedback and ok markus@
2013-01-09 - markus@cvs.openbsd.org 2013/01/08 18:49:04Damien Miller
[PROTOCOL authfile.c cipher.c cipher.h kex.c kex.h monitor_wrap.c] [myproposal.h packet.c ssh_config.5 sshd_config.5] support AES-GCM as defined in RFC 5647 (but with simpler KEX handling) ok and feedback djm@
2012-12-12 - markus@cvs.openbsd.org 2012/12/11 22:31:18Damien Miller
[PROTOCOL authfile.c cipher.c cipher.h kex.h mac.c myproposal.h] [packet.c ssh_config.5 sshd_config.5] add encrypt-then-mac (EtM) modes to openssh by defining new mac algorithms that change the packet format and compute the MAC over the encrypted message (including the packet size) instead of the plaintext data; these EtM modes are considered more secure and used by default. feedback and ok djm@
2012-12-07 - jmc@cvs.openbsd.org 2012/12/03 08:33:03Darren Tucker
[ssh-add.1 sshd_config.5] tweak previous;
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