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Annotated edit history of telnetlogin(8) version 2, including all changes. View license author blame.
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1 perry 1 ----
2 __NAME__
3
4
5 telnetlogin - login wrapper for telnetd
6 __SYNOPSIS__
7
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9 telnetlogin [[-h host] [[-p] [[username]
10 __DESCRIPTION__
11
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13 telnetlogin is a setuid wrapper that runs login(1).
14 It is meant to be invoked by telnetd(8); the idea
15 is to remove the necessity of running telnetd as
16 root.
17
18
19 telnetlogin should be installed mode 4750, user root, group telnetd. Then, telnetd may be run from /etc/inetd.conf as user ``nobody'', group ``telnetd'', and with the option -L path-to-telnetlogin.
20
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22 telnetlogin accepts only the subset of options to
23 login(1) shown above, in the order listed. This is
24 the order telnetd 8 normally provides them in. telnetlogin
25 also does sanity checks on the environment variables
26 TERM, and REMOTEHOST. It also insists that
27 the standard input, output, and error streams are open on a
28 terminal, and that it is the process group leader of the
29 foreground process of that terminal. After checking all of
30 these conditions, checking the values of the above
31 environment variables for reasonable values, resetting
32 signal handlers, and so forth, it execs login.
33 __SEE ALSO__
34
35
36 login(1), inetd.conf(5),
37 inetd(8), telnetd(8)
38 __RESTRICTIONS__
39
40
41 telnetlogin does not permit the -f option to login, so will
42 not work with telnetds that perform authentication via Ker-
43 beros or SSL.
44
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46 THIS IS PRESENTLY EXPERIMENTAL CODE; USE WITH CAUTION.
47 __HISTORY__
48
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2 perry 50 telnetlogin was written during the development of !NetKit
1 perry 51 0.17.
52
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2 perry 54 Linux !NetKit (0.17) April 12, 2000 1
1 perry 55 ----
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