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path: root/sshd_config.5
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2017-09-04upstream commitjmc@openbsd.org
remove blank line; Upstream-ID: 2f46b51a0ddb3730020791719e94d3e418e9f423
2017-09-04upstream commitdjm@openbsd.org
document available AuthenticationMethods; bz#2453 ok dtucker@ Upstream-ID: 2c70576f237bb699aff59889dbf2acba4276d3d0
2017-07-24upstream commitdjm@openbsd.org
Allow IPQoS=none in ssh/sshd to not set an explicit ToS/DSCP value and just use the operating system default; ok dtucker@ Upstream-ID: 77906ff8c7b660b02ba7cb1e47b17d66f54f1f7e
2017-07-21upstream commitjmc@openbsd.org
man pages with pseudo synopses which list filenames end up creating very ugly output in man -k; after some discussion with ingo, we feel the simplest fix is to remove such SYNOPSIS sections: the info is hardly helpful at page top, is contained already in FILES, and there are sufficiently few that just zapping them is simple; ok schwarze, who also helpfully ran things through a build to check output; Upstream-ID: 3e211b99457e2f4c925c5927d608e6f97431336c
2017-06-24upstream commitdjm@openbsd.org
correct env var name Upstream-ID: 721e761c2b1d6a4dcf700179f16fd53a1dadb313
2017-06-24upstream commitjmc@openbsd.org
spelling; Upstream-ID: 606f933c8e2d0be902ea663946bc15e3eee40b25
2017-06-24upstream commitdjm@openbsd.org
refactor authentication logging optionally record successful auth methods and public credentials used in a file accessible to user sessions feedback and ok markus@ Upstream-ID: 090b93036967015717b9a54fd0467875ae9d32fb
2017-05-17upstream commitdjm@openbsd.org
allow LogLevel in sshd_config Match blocks; ok dtucker bz#2717 Upstream-ID: 662e303be63148f47db1aa78ab81c5c2e732baa8
2017-05-08upstream commitdjm@openbsd.org
As promised in last release announcement: remove support for Blowfish, RC4 and CAST ciphers. ok markus@ deraadt@ Upstream-ID: 21f8facdba3fd8da248df6417000867cec6ba222
2017-03-15upstream commitdjm@openbsd.org
Mark the sshd_config UsePrivilegeSeparation option as deprecated, effectively making privsep mandatory in sandboxing mode. ok markus@ deraadt@ (note: this doesn't remove the !privsep code paths, though that will happen eventually). Upstream-ID: b4c52666256c4dd865f8ce9431af5d6ce2d74a0a
2017-02-04upstream commitdjm@openbsd.org
support =- for removing methods from algorithms lists, e.g. Ciphers=-*cbc; suggested by Cristian Ionescu-Idbohrn in bz#2671 "I like it" markus@ Upstream-ID: c78c38f9f81a963b33d0eade559f6048add24a6d
2017-01-30upstream commitjmc@openbsd.org
keep the tokens list sorted; Upstream-ID: b96239dae4fb3aa94146bb381afabcc7740a1638
2017-01-30upstream commitdtucker@openbsd.org
Re-add '%k' token for AuthorizedKeysCommand which was lost during the re-org in rev 1.235. bz#2656, from jboning at gmail.com. Upstream-ID: 2884e203c02764d7b3fe7472710d9c24bdc73e38
2016-11-30upstream commitdjm@openbsd.org
Add a sshd_config DisableForwaring option that disables X11, agent, TCP, tunnel and Unix domain socket forwarding, as well as anything else we might implement in the future. This, like the 'restrict' authorized_keys flag, is intended to be a simple and future-proof way of restricting an account. Suggested as a complement to 'restrict' by Jann Horn; ok markus@ Upstream-ID: 203803f66e533a474086b38a59ceb4cf2410fcf7
2016-11-24upstream commitmarkus@openbsd.org
allow ClientAlive{Interval,CountMax} in Match; ok dtucker, djm Upstream-ID: 8beb4c1eadd588f1080b58932281983864979f55
2016-10-10upstream commitjmc@openbsd.org
tidy up the formatting in this file. more specifically, replace .Dq, which looks appalling, with .Cm, where appropriate; Upstream-ID: ff8e90aa0343d9bb56f40a535e148607973cc738
2016-09-29upstream commitdjm@openbsd.org
restore pre-auth compression support in the client -- the previous commit was intended to remove it from the server only. remove a few server-side pre-auth compression bits that escaped adjust wording of Compression directive in sshd_config(5) pointed out by naddy@ ok markus@ Upstream-ID: d23696ed72a228dacd4839dd9f2dec424ba2016b
2016-09-24upstream commitjmc@openbsd.org
organise the token stuff into a separate section; ok markus for an earlier version of the diff ok/tweaks djm Upstream-ID: 81a6daa506a4a5af985fce7cf9e59699156527c8
2016-09-24upstream commitdjm@openbsd.org
mention curve25519-sha256 KEX Upstream-ID: 33ae1f433ce4795ffa6203761fbdf86e0d7ffbaf
2016-09-21upstream commitdjm@openbsd.org
add a way for principals command to get see key ID and serial too Upstream-ID: 0d30978bdcf7e8eaeee4eea1b030eb2eb1823fcb
2016-09-14upstream commitdjm@openbsd.org
add %-escapes to AuthorizedPrincipalsCommand to match those supported for AuthorizedKeysCommand (key, key type, fingerprint, etc) and a few more to provide access to the certificate's CA key; 'looks ok' dtucker@ Upstream-ID: 6b00fd446dbebe67f4e4e146d2e492d650ae04eb
2016-09-12upstream commitjmc@openbsd.org
sort; from matthew martin Upstream-ID: 73cec7f7ecc82d37a4adffad7745e4684de67ce7
2016-08-23upstream commitdjm@openbsd.org
remove UseLogin option and support for having /bin/login manage login sessions; ok deraadt markus dtucker Upstream-ID: bea7213fbf158efab7e602d9d844fba4837d2712
2016-08-23upstream commitnaddy@openbsd.org
Catch up with the SSH1 code removal and delete all mention of protocol 1 particularities, key files and formats, command line options, and configuration keywords from the server documentation and examples. ok jmc@ Upstream-ID: 850328854675b4b6a0d4a90f0b4a9dd9ca4e905f
2016-08-14upstream commitjca@openbsd.org
Use 2001:db8::/32, the official IPv6 subnet for configuration examples. This makes the IPv6 example consistent with IPv4, and removes a dubious mention of a 6bone subnet. ok sthen@ millert@ Upstream-ID: b027f3d0e0073419a132fd1bf002e8089b233634
2016-07-22upstream commitjmc@openbsd.org
tweak previous; Upstream-ID: f3c1a5b3f05dff366f60c028728a2b43f15ff534
2016-07-22upstream commitdtucker@openbsd.org
Allow wildcard for PermitOpen hosts as well as ports. bz#2582, patch from openssh at mzpqnxow.com and jjelen at redhat.com. ok markus@ Upstream-ID: af0294e9b9394c4e16e991424ca0a47a7cc605f2
2016-06-24upstream commitjmc@openbsd.org
grammar fix; Upstream-ID: 5d5b21c80f1e81db367333ce0bb3e5874fb3e463
2016-06-24upstream commitdjm@openbsd.org
ban AuthenticationMethods="" and accept AuthenticationMethods=any for the default behaviour of not requiring multiple authentication bz#2398 from Jakub Jelen; ok dtucker@ Upstream-ID: fabd7f44d59e4518d241d0d01e226435cc23cf27
2016-05-19upstream commitmarkus@openbsd.org
allow setting IdentityAgent to SSH_AUTH_SOCK; ok djm@ Upstream-ID: 20c508480d8db3eef18942c0fc39b1fcf25652ac
2016-04-28upstream commitjmc@openbsd.org
cidr permitted for {allow,deny}users; from lars nooden ok djm Upstream-ID: 13e7327fe85f6c63f3f7f069e0fdc8c351515d11
2016-03-18upstream commitdjm@openbsd.org
UseDNS affects ssh hostname processing in authorized_keys, not known_hosts; bz#2554 reported by jjelen AT redhat.com Upstream-ID: c1c1bb895dde46095fc6d81d8653703928437591
2016-02-18upstream commitdjm@openbsd.org
rsa-sha2-512,rsa-sha2-256 cannot be selected explicitly in *KeyTypes options yet. Remove them from the lists of algorithms for now. committing on behalf of markus@ ok djm@ Upstream-ID: c6e8820eb8e610ac21551832c0c89684a9a51bb7
2016-02-18upstream commitjmc@openbsd.org
since these pages now clearly tell folks to avoid v1, normalise the docs from a v2 perspective (i.e. stop pointing out which bits are v2 only); ok/tweaks djm ok markus Upstream-ID: eb474f8c36fb6a532dc05c282f7965e38dcfa129
2016-02-17upstream commitdjm@openbsd.org
Replace list of ciphers and MACs adjacent to -1/-2 flag descriptions in ssh(1) with a strong recommendation not to use protocol 1. Add a similar warning to the Protocol option descriptions in ssh_config(5) and sshd_config(5); prompted by and ok mmcc@ Upstream-ID: 961f99e5437d50e636feca023978950a232ead5e
2016-02-11upstream commitdjm@openbsd.org
sync crypto algorithm lists in ssh_config(5) and sshd_config(5) with current reality. bz#2527 Upstream-ID: d7fd1b6c1ed848d866236bcb1d7049d2bb9b2ff6
2016-02-08upstream commitdjm@openbsd.org
better description for MaxSessions; bz#2531 Upstream-ID: e2c0d74ee185cd1a3e9d4ca1f1b939b745b354da
2015-11-16upstream commitdjm@openbsd.org
Support "none" as an argument for sshd_config ForceCommand and ChrootDirectory. Useful inside Match blocks to override a global default. bz#2486 ok dtucker@ Upstream-ID: 7ef478d6592bc7db5c7376fc33b4443e63dccfa5
2015-11-16upstream commitdjm@openbsd.org
list a couple more options usable in Match blocks; bz#2489 Upstream-ID: e4d03f39d254db4c0cc54101921bb89fbda19879
2015-10-08upstream commitsobrado@openbsd.org
UsePrivilegeSeparation defaults to sandbox now. ok djm@ Upstream-ID: bff136c38bcae89df82e044d2f42de21e1ad914f
2015-09-11upstream commitdjm@openbsd.org
more clarity on what AuthorizedKeysFile=none does; based on diff by Thiebaud Weksteen Upstream-ID: 78ab87f069080f0cc3bc353bb04eddd9e8ad3704
2015-08-19upstream commitjmc@openbsd.org
match myproposal.h order; from brian conway (i snuck in a tweak while here) ok dtucker Upstream-ID: 35174a19b5237ea36aa3798f042bf5933b772c67
2015-08-11upstream commitderaadt@openbsd.org
add prohibit-password as a synonymn for without-password, since the without-password is causing too many questions. Harden it to ban all but pubkey, hostbased, and GSSAPI auth (when the latter is enabled) from djm, ok markus Upstream-ID: d53317d7b28942153e6236d3fd6e12ceb482db7a
2015-08-02upstream commitderaadt@openbsd.org
change default: PermitRootLogin without-password matching install script changes coming as well ok djm markus Upstream-ID: 0e2a6c4441daf5498b47a61767382bead5eb8ea6
2015-07-30upstream commitdjm@openbsd.org
Allow ssh_config and sshd_config kex parameters options be prefixed by a '+' to indicate that the specified items be appended to the default rather than replacing it. approach suggested by dtucker@, feedback dlg@, ok markus@ Upstream-ID: 0f901137298fc17095d5756ff1561a7028e8882a
2015-07-20upstream commitdjm@openbsd.org
mention that the default of UseDNS=no implies that hostnames cannot be used for host matching in sshd_config and authorized_keys; bz#2045, ok dtucker@ Upstream-ID: 0812705d5f2dfa59aab01f2764ee800b1741c4e1
2015-07-15upstream commitmarkus@openbsd.org
Turn off DSA by default; add HostKeyAlgorithms to the server and PubkeyAcceptedKeyTypes to the client side, so it still can be tested or turned back on; feedback and ok djm@ Upstream-ID: 8450a9e6d83f80c9bfed864ff061dfc9323cec21
2015-07-15upstream commitdjm@openbsd.org
refuse to generate or accept RSA keys smaller than 1024 bits; feedback and ok dtucker@ Upstream-ID: 7ea3d31271366ba264f06e34a3539bf1ac30f0ba
2015-06-05upstream commitdjm@openbsd.org
typo: accidental repetition; bz#2386 Upstream-ID: 45e620d99f6bc301e5949d34a54027374991c88b
2015-05-22upstream commitdjm@openbsd.org
add knob to relax GSSAPI host credential check for multihomed hosts bz#928, patch by Simon Wilkinson; ok dtucker (kerberos/GSSAPI is not compiled by default on OpenBSD) Upstream-ID: 15ddf1c6f7fd9d98eea9962f480079ae3637285d
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