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| 2 | RSHD(8) BSD System Manager's Manual RSHD(8)
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| 3 |
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| 4 | NNAAMMEE
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| 5 | rrsshhdd -- remote shell server
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| 6 |
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| 7 | SSYYNNOOPPSSIISS
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| 8 | rrsshhdd [--aaiikkllnnvvxxPPLL] [--pp _p_o_r_t]
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| 9 |
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| 10 | DDEESSCCRRIIPPTTIIOONN
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| 11 | rrsshhdd is the server for the rsh(1) program. It provides an authenticated
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| 12 | remote command execution service. Supported options are:
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| 13 |
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| 14 | --nn, ----nnoo--kkeeeeppaalliivvee
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| 15 | Disables keep-alive messages. Keep-alives are packets sent at
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| 16 | certain intervals to make sure that the client is still there,
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| 17 | even when it doesn't send any data.
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| 18 |
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| 19 | --kk, ----kkeerrbbeerrooss
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| 20 | Assume that clients connecting to this server will use some form
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| 21 | of Kerberos authentication. See the _E_X_A_M_P_L_E_S section for a sample
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| 22 | inetd.conf(5) configuration.
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| 23 |
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| 24 | --xx, ----eennccrryypptt
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| 25 | For Kerberos 4 this means that the connections are encrypted.
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| 26 | Kerberos 5 can negotiate encryption even without this option, but
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| 27 | if it's present rrsshhdd will deny unencrypted connections. This
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| 28 | option implies --kk.
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| 29 |
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| 30 | --vv, ----vvaaccuuoouuss
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| 31 | If the connecting client does not use any Kerberised authentica-
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| 32 | tion, print a message that complains about this fact, and exit.
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| 33 | This is helpful if you want to move away from old port-based
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| 34 | authentication.
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| 35 |
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| 36 | --PP When using the AFS filesystem, users' authentication tokens are
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| 37 | put in something called a PAG (Process Authentication Group).
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| 38 | Multiple processes can share a PAG, but normally each login ses-
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| 39 | sion has its own PAG. This option disables the sseettppaagg() call, so
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| 40 | all tokens will be put in the default (uid-based) PAG, making it
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| 41 | possible to share tokens between sessions. This is only useful in
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| 42 | peculiar environments, such as some batch systems.
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| 43 |
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| 44 | --ii, ----nnoo--iinneettdd
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| 45 | The --ii option will cause rrsshhdd to create a socket, instead of
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| 46 | assuming that its stdin came from inetd(8). This is mostly use-
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| 47 | ful for debugging.
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| 48 |
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| 49 | --pp _p_o_r_t, ----ppoorrtt==_p_o_r_t
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| 50 | Port to use with --ii.
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| 51 |
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| 52 | --aa This flag is for backwards compatibility only.
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| 53 |
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| 54 | --LL This flag enables logging of connections to syslogd(8). This
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| 55 | option is always on in this implementation.
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| 56 |
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| 57 | FFIILLEESS
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| 58 | /etc/hosts.equiv
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| 59 | ~/.rhosts
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| 60 |
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| 61 | EEXXAAMMPPLLEESS
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| 62 | The following can be used to enable Kerberised rsh in inetd.cond(5),
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| 63 | while disabling non-Kerberised connections:
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| 64 |
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| 65 | shell stream tcp nowait root /usr/libexec/rshd rshd -v
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| 66 | kshell stream tcp nowait root /usr/libexec/rshd rshd -k
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| 67 | ekshell stream tcp nowait root /usr/libexec/rshd rshd -kx
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| 68 |
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| 69 | SSEEEE AALLSSOO
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| 70 | rsh(1), iruserok(3)
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| 71 |
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| 72 | HHIISSTTOORRYY
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| 73 | The rrsshhdd command appeared in 4.2BSD.
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| 74 |
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| 75 | AAUUTTHHOORRSS
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| 76 | This implementation of rrsshhdd was written as part of the Heimdal Kerberos 5
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| 77 | implementation.
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| 78 |
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| 79 | HEIMDAL November 22, 2002 HEIMDAL
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